Surface quality treatment device for carbon-coated aluminum foil
By using a carbon-coated aluminum foil surface quality treatment device, which precisely controls airflow through hot air knives and multi-stage drying ovens, the problems of incomplete oxide layer removal and residual particles on the surface are solved, improving the surface quality of aluminum foil and the adhesion of coating materials, while reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU FIVE STAR ALUMINUM
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-23
AI Technical Summary
In existing carbon-coated aluminum foil surface quality optimization systems, low temperature control accuracy and insufficient airflow impact force lead to incomplete removal of the oxide layer and residual particles on the surface.
A surface quality treatment device for carbon-coated aluminum foil is adopted, including an unwinding device, a hot air knife device, a multi-stage drying oven device, and a coating device. The oil film is removed by shearing and peeling with hot air knives and pyrolysis oxidation, and the multi-stage drying oven is used for drying and coating. The airflow temperature and angle are precisely controlled to achieve controllable peeling of the oxide layer and optimization of micro-roughness.
It significantly reduces surface residual particles by 70%, stabilizes the surface roughness of aluminum foil at 0.2-0.4μm, improves the adhesion of coating materials by 40%, and reduces energy consumption by 35%.
Smart Images
Figure CN224389235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum foil processing technology, and in particular to a surface quality treatment device for carbon-coated aluminum foil. Background Technology
[0002] In lithium-ion batteries, foil is typically used as a carrier for active materials. To improve the performance of the foil, a conductive paste containing a conductive agent is usually coated onto its surface to obtain carbon-coated foil. This carbon-coated foil increases wettability and adhesion, reduces polarization resistance, and improves the consistency of lithium-ion batteries. Commonly used carbon-coated aluminum foil requires surface treatment before coating with active materials. Traditional methods include mechanical grinding, chemical cleaning, and hot air treatment. Mechanical grinding suffers from problems such as substrate damage during physical grinding, secondary pollution caused by abrasive particles, and process limitations. Chemical cleaning suffers from problems such as residual chloride ions on the surface after chemical treatment, grain boundary corrosion caused by alkaline cleaning, and environmental hazards. Conventional hot air treatment suffers from problems such as uneven temperature, insufficient airflow impact leading to incomplete removal of the oxide layer, and residual particles on the surface, affecting the adhesion of the coating layer.
[0003] In related technologies, a surface quality optimization system for carbon-coated aluminum foil generally includes an unwinding assembly, a coating assembly, a drying assembly, and a winding assembly connected in sequence. The carbon-coated foil is coated sequentially by the unwinding assembly, the coating assembly dries the coated carbon-coated foil, and the winding assembly winds and packages the foil.
[0004] However, the aforementioned surface quality optimization system uses conventional single-oven baking through thermal radiation and natural convection, resulting in low temperature control accuracy, uneven temperature, insufficient airflow impact leading to incomplete removal of the oxide layer, and residual particles on the surface. Utility Model Content
[0005] To address the shortcomings of the existing technologies, this utility model proposes a surface quality treatment device for carbon-coated aluminum foil, which solves the problems of incomplete removal of the oxide layer and residual particles on the surface during the existing surface quality processing of carbon-coated aluminum foil.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] This utility model provides a surface quality treatment device for carbon-coated aluminum foil, including: a frame and an unwinding device, a hot air knife device, a first drying oven device, a first coating device, a second drying oven device, a third drying oven device, and a winding device, which are installed sequentially at the corresponding process positions of the frame according to the production process.
[0008] The unwinding device is used to unwind the aluminum foil on the aluminum foil roll, and the winding device is used to wind up the aluminum foil that has been unwound from the aluminum foil roll and processed in sequence by the hot air knife device, the first drying oven device, the first coating device, the second drying oven device, the second coating device and the third drying oven device.
[0009] The hot air knife device is used to remove the oil film from the aluminum foil by shearing, peeling, and pyrolysis oxidation; the first drying oven device is used to dry the aluminum foil after the oil film has been removed; the first coating device is used to coat the front side of the aluminum foil that has passed through its corresponding process; the second drying oven device is used to dry the front side of the aluminum foil after front coating; the second coating device is used to coat the back side of the aluminum foil that has passed through its corresponding process; the third drying oven device is used to dry the back side of the aluminum foil after back coating and convey it to the winding device.
[0010] Preferably, the unwinding device and the winding device are disposed opposite to each other at both ends of the frame, and the hot air knife device and the first coating device are respectively disposed at intervals between the unwinding device and the winding device; the second drying oven device is disposed above the unwinding device; the second coating device is disposed on the side of the unwinding device away from the winding device, and the second coating device is flush with the first coating device; the third drying oven device is disposed above the second drying oven device.
[0011] Preferably, the orthographic projection of the second oven device toward the unwinding device, the hot air knife device, and the first coating device falls entirely within the area formed by the unwinding device, the hot air knife device, and the first coating device; the orthographic projection of the third oven device toward the second oven device and the second coating device falls entirely within the area formed by the second oven device and the second coating device.
[0012] Preferably, the hot air knife device includes a support frame, an angle adjustment mechanism fixed to the support frame, and a first hot air knife and a second hot air knife fixed to the angle adjustment mechanism; the support frame is installed on the frame, the air outlets of the first hot air knife and the air outlets of the second hot air knife are spaced apart and opposite to each other, and the angle adjustment mechanism is used to adjust the hot air incident angle of the first hot air knife and the second hot air knife.
[0013] Preferably, the hot air incident angle is 30° to 75°; wherein, the hot air incident angle is the angle formed between the air outlet direction of the first hot air knife and the surface of the aluminum foil or the angle formed between the air outlet direction of the second hot air knife and the surface of the aluminum foil.
[0014] Preferably, the first hot air knife and the second hot air knife have the same structure;
[0015] The first hot air knife includes a hollow blade body, a first pipe and a second pipe respectively connected to one side of the blade body, a threaded rod rotatably disposed on the blade body, and a blade connected to the end of the blade body; the air vent is formed through the blade and communicates the outside with the inside of the blade body; one end of the first pipe and the second pipe are respectively used to connect to an external multi-stage eddy current generator, and the other end of the first pipe and the second pipe are respectively connected to the inside of the blade body; the threaded rod is connected to the angle adjustment mechanism.
[0016] Preferably, the blade is a slit-type nozzle structure.
[0017] Preferably, the angle adjustment mechanism includes a drive motor fixed to the support frame and a rotating bracket fixed to the output end of the drive motor; the first hot air knife and the second hot air knife are respectively fixed to the rotating bracket.
[0018] Preferably, the carbon-coated aluminum foil surface quality treatment device further includes a control console mechanism, a hot air blower electrically connected to the control console mechanism, and a dynamic temperature control system; the control console mechanism is used to control the operation of the hot air blower, and the air outlet of the hot air blower is connected to the first pipe and the second pipe respectively; the dynamic temperature control system is disposed between the first drying oven device and the hot air knife device, and the dynamic temperature control system is used to monitor the surface of the aluminum foil in real time.
[0019] Preferably, the carbon-coated aluminum foil surface quality treatment device further includes a first infrared temperature measurement module and a second infrared temperature measurement module; the first infrared temperature measurement module is installed in the second oven device and is used to measure the baking temperature inside the second oven device; the second infrared temperature measurement module is installed in the third oven device and is used to measure the baking temperature inside the third oven device.
[0020] Compared with related technologies, in the embodiments of this utility model, an unwinding device is used to unwind the aluminum foil roll, and a winding device is used to wind the aluminum foil roll after it has been processed sequentially by a hot air knife device, a first drying oven device, a first coating device, a second drying oven device, a second coating device, and a third drying oven device according to the production process; the hot air knife device is used to remove the oil film from the aluminum foil roll by shearing, peeling, and pyrolysis oxidation; the first drying oven device is used to dry the aluminum foil after the oil film has been removed; and the first coating device is used to coat the front side of the aluminum foil roll. The second drying oven is used to dry the front side of the aluminum foil roll; the second coating unit is used to coat the back side of the aluminum foil roll; the third drying oven is used to dry the back side of the aluminum foil roll and convey it to the winding unit. The first and second coating units can coat both the front and back sides of the aluminum foil, and the second and third drying ovens can achieve multi-stage baking effects. The hot air knife device allows for precise control of airflow temperature, speed, and angle of action, enabling controlled peeling of the aluminum foil oxide layer, optimization of micro-roughness, and synergistic removal of contaminants. This reduces surface residual particles by more than 70% (SEM detection), and the surface roughness Ra value of the treated aluminum foil is stabilized at 0.2-0.4μm (measured by a stylus profilometer), while the adhesion of the coated material is improved by 40%. Energy consumption is reduced by 35% compared to traditional processes. Attached Figure Description
[0021] The present invention will now be described in detail with reference to the accompanying drawings. The above and other aspects of the present invention will become clearer and easier to understand through the detailed description in conjunction with the following drawings. In the drawings:
[0022] Figure 1 A schematic diagram of the surface quality treatment device for carbon-coated aluminum foil provided in this embodiment of the utility model;
[0023] Figure 2 A front view of the first hot air knife provided for an embodiment of this utility model;
[0024] Figure 3 Right view of the first hot air knife provided for an embodiment of this utility model;
[0025] Figure 4 This is a schematic diagram of the structure of the hot air blower provided in an embodiment of the present utility model.
[0026] Among them, 100, carbon-coated aluminum foil surface quality treatment device; 1, unwinding device; 2, hot air knife device; 21, first hot air knife; 211, knife body; 212, first pipe; 213, second pipe; 214, blade; 215, threaded rod; 22, second hot air knife; 23, angle adjustment mechanism; 3, first drying oven device; 4, first coating device; 5, second drying oven device; 6, second coating device; 7, third drying oven device; 8, winding device; 9, first infrared temperature measurement module; 10, second infrared temperature measurement module; 11, control console mechanism; 12, hot air blower; 13, dynamic temperature control system; 14, frame. Detailed Implementation
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0029] 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.
[0030] Please see Figures 1-4 As shown, this utility model embodiment provides a carbon-coated aluminum foil surface quality treatment device 100, including: a frame 14 and an unwinding device 1, a hot air knife device 2, a first drying oven device 3, a first coating device 4, a second drying oven device 5, a second coating device 6, a third drying oven device 7, and a winding device 8, which are sequentially connected to the corresponding process positions of the frame 14 according to the production process.
[0031] The unwinding device 1 is used to unwind the aluminum foil on the aluminum foil roll, and the winding device 8 is used to wind up the aluminum foil roll that has been unwound and processed by the hot air knife device 2, the first coating device 4, the second drying oven device 5, the second coating device 6 and the third drying oven device 7.
[0032] The hot air knife device 2 is used to remove the oil film from the aluminum foil roll by shearing, peeling, and pyrolysis oxidation; the first drying oven device 3 is used to dry the aluminum foil after the oil film has been removed; the first coating device 4 is used to coat the front side of the aluminum foil that has passed through its corresponding process; the second drying oven device 5 is used to dry the front side of the aluminum foil after the front side coating; the second coating device 6 is used to coat the back side of the aluminum foil that has passed through its corresponding process; the third drying oven device 7 is used to dry the back side of the aluminum foil after the back side coating and convey it to the winding device 8.
[0033] Specifically, the unwinding device 1 is used to place the aluminum foil to be coated with carbon, and the winding device 8 is used to wind the aluminum foil roll after it has been processed by the hot air knife device 2, the first coating device 4, the second drying oven device 5, the second coating device 6, and the third drying oven device 7. The hot air knife device 2 is used to remove the oil film from the aluminum foil roll by shearing, peeling, and pyrolysis oxidation. The first coating device 4 is used to coat the front side of the aluminum foil roll. The second drying oven device 5 is used to dry the front side of the aluminum foil roll. The second coating device 6 is used to coat the back side of the aluminum foil roll; the third drying oven device 7 is used to dry the back side of the aluminum foil roll and convey it to the winding device 8; the first coating device 4 and the second coating device 6 can coat the front and back sides of the aluminum foil, and the second drying oven device 5 and the third drying oven device 7 can achieve multi-stage baking effect; the hot air knife device 2 can precisely control the airflow temperature, speed and angle of action, and achieve the synergistic treatment of controllable peeling of the oxide layer on the aluminum foil surface, optimization of micro-roughness and removal of contaminants.
[0034] In this embodiment, the unwinding device 1 and the winding device 8 are positioned opposite each other at both ends of the frame 14. The hot air knife device 2 and the first coating device 4 are respectively spaced apart between the unwinding device 1 and the winding device 8. The second drying oven device 5 is positioned above the unwinding device 1. The second coating device 6 is positioned on the side of the unwinding device 1 away from the winding device 8, and the second coating device 6 is flush with the first coating device 4. The third drying oven device 7 is positioned above the second drying oven device 5. Using a stacked installation method can save overall equipment installation space and reduce costs.
[0035] In this embodiment, the orthographic projection of the second oven device 5 onto the unwinding device 1, the hot air knife device 2, and the first coating device 4 completely falls within the common area formed by the unwinding device 1, the hot air knife device 2, and the first coating device 4; the orthographic projection of the third oven device 7 onto the second oven device 5 and the second coating device 6 completely falls within the common area formed by the second oven device 5 and the second coating device 6. This design facilitates installation and saves space.
[0036] In this embodiment, the hot air knife device 2 includes a support frame, an angle adjustment mechanism 23 fixed to the support frame, and a first hot air knife 21 and a second hot air knife 22 fixed to the angle adjustment mechanism 23. The support frame is mounted on the frame 14. The air outlets of the first hot air knife 21 and the second hot air knife 22 are spaced apart and opposite to each other. The angle adjustment mechanism 23 is used to adjust the hot air incident angle of the first hot air knife 21 and the second hot air knife 22. The angle adjustment mechanism 23 is fixedly mounted on the support frame so that the first hot air knife 21 and the second hot air knife 22 mounted on the angle adjustment mechanism 23 are aligned with the passing aluminum foil. By adjusting the first hot air knife 21 and the second hot air knife 22 to the corresponding positions through the angle adjustment mechanism 23, the first hot air knife 21 and the second hot air knife 22 are activated to precisely control the airflow temperature, speed and angle of action on the aluminum foil, thereby achieving the synergistic treatment of controllable peeling of the oxide layer on the aluminum foil surface, optimization of micro-roughness and removal of contaminants.
[0037] In this embodiment, the hot air incident angle is 30° to 75°. Specifically, the hot air incident angle is the angle formed by the outlet direction of the first hot air blade 21 and the surface of the aluminum foil, or the angle formed by the outlet direction of the second hot air blade 22 and the surface of the aluminum foil. A drive motor is provided to drive the rotating bracket, enabling stepless adjustment of the hot air incident angle within the range of 30° to 75° to accommodate different foil thicknesses.
[0038] In this embodiment, the first hot air knife 21 and the second hot air knife 22 have the same structure. The first hot air knife 21 includes a hollow knife body 211, a first pipe 212 and a second pipe 213 respectively connected to one side of the knife body 211, a threaded rod 215 rotatably disposed on the knife body 211, and a blade 214 connected to the end of the knife body 211; the air vent is formed through the blade 214, communicating with the outside world and the interior of the knife body 211. The threaded rod 215 is connected to the angle adjustment mechanism 23. One end of the first pipe 212 and the second pipe 213 is used to connect to an external multi-stage eddy current generator, and the other end of the first pipe 212 and the second pipe 213 is connected to the interior of the knife body 211. The first pipe 212 and the second pipe 213 are used to connect the hot air blower 12 and the hot air knife to transport hot air. An external multi-stage vortex generator uses varying air pressures to allow the blade 214 to spray different pressures, facilitating the spraying of different aluminum foils. This enables controlled peeling of the aluminum foil surface oxide layer, optimization of micro-roughness, and synergistic removal of contaminants. A threaded rod 215 connects the hot air knife to a motor-driven rotating bracket, allowing for real-time adjustment of the hot air knife's blowing angle.
[0039] In this embodiment, the blade 214 is a slit-type nozzle structure. The slit-type nozzle design (slit width 1-3mm), combined with a multi-stage vortex generator, produces a laminar, uniform, high-temperature airflow (temperature adjustable from 150℃ to 400℃).
[0040] Specifically, an image of the incoming aluminum foil is acquired by a CCD sensor, and a corresponding CCD report is provided. The CCD report is then identified at the carbon coating area to determine if there are any abnormal oil spots. If so, the location of the oil spot is determined, and the process is adjusted accordingly. If not, the standard process parameters of the hot air blower 12 are sampled and operated. The hot air knife degreasing system is used for degreasing. After degreasing, the coating process is performed, thus completing the aluminum foil coating process.
[0041] In this embodiment, the angle adjustment mechanism 23 includes a drive motor fixed to the support frame and a rotating bracket fixed to the output end of the drive motor; the first hot air knife 21 and the second hot air knife 22 are respectively fixed to the rotating bracket. The position of the first hot air knife 21 and the second hot air knife 22 is adjusted by rotating the rotating bracket driven by the drive motor, so as to adapt to the surface residual particle treatment of various aluminum foils and improve the surface processing quality of aluminum foils.
[0042] In this embodiment, the carbon-coated aluminum foil surface quality treatment device 100 further includes a control console 11, a hot air blower 12 electrically connected to the control console 11, and a dynamic temperature control system 13; the control console 11 is used to control the operation of the hot air blower 12, and the air outlet of the hot air blower 12 is connected to the first pipe 212 and the second pipe 213 respectively; the dynamic temperature control system 13 is disposed between the first oven device 3 and the hot air knife device 2, and the dynamic temperature control system 13 is used to monitor the surface of the aluminum foil in real time.
[0043] Among them, the dynamic temperature control system 13 uses a high-precision non-contact sensor with a range of -40℃ to 400℃ and an accuracy of ±5℃ to monitor the surface of the aluminum foil in real time.
[0044] The control console 11 is used to monitor and control the entire hot air knife system, including a dynamic temperature control system 13, a hot air knife angle adjustment system, and a multi-stage hot air knife air supply system. The hot air blower 12 is an industrial hot air blower with a fan power of 12.5KW and a heating power of 60KW, used to heat cold air and convert it into hot air. The industrial hot air blower 12 is connected to the hot air inlet for transporting hot air. Connected to the control console 11, the industrial hot air blower 12 can adjust the hot air temperature and speed in real time according to the oil content on the aluminum foil surface. The hot air knife outlet has a 2mm wide slit and a wind speed of 70-80m / min, used for outputting the hot air transported by the hot air blower 12 through pipes.
[0045] In this embodiment, the carbon-coated aluminum foil surface quality treatment device 100 further includes a first infrared temperature measurement module 9 and a second infrared temperature measurement module 10; the first infrared temperature measurement module 9 is installed in the second oven device 5 and is used to measure the baking temperature inside the second oven device 5; the second infrared temperature measurement module 10 is installed in the third oven device 7 and is used to measure the baking temperature inside the third oven device 7.
[0046] Optionally, the first infrared temperature measurement module 9 and the second infrared temperature measurement module 10 can be MLX90614 infrared sensors, which have the characteristics of fast response speed and high accuracy.
[0047] In this embodiment, the carbon-coated aluminum foil surface quality treatment device 100 further includes dynamically adjusting the air knife parameters based on online surface quality detection data (such as laser scattering instrument signals) to achieve adaptive processing.
[0048] In summary, after being treated by the carbon-coated aluminum foil surface quality treatment device 100, the properties of the carbon-coated aluminum foil are shown in Table 1 below:
[0049] Table 1 - Performance of Carbon-Coated Aluminum Foil
[0050]
[0051]
[0052] As shown in Table 1 above, the superiority of hot air knife technology is demonstrated through a comparative analysis of hot air knife and conventional oven baking processes, using key parameters.
[0053] Table 2 - Comparison of Process Principles for Key Parameters
[0054]
[0055] Compared with related technologies, in the embodiments of this utility model, an unwinding device is used to unwind the aluminum foil roll, and a winding device is used to wind the aluminum foil roll after it has been processed by a hot air knife device, a first coating device, a second drying oven device, a second coating device, and a third drying oven device. The hot air knife device is used to remove the oil film from the aluminum foil roll by shearing, peeling, and pyrolysis oxidation. The first drying oven device is used to dry the aluminum foil after the oil film has been removed. The first coating device is used to coat the front side of the aluminum foil roll. The second drying oven device... The first and second coating units are used to dry the front side of the aluminum foil roll; the second coating unit is used to coat the back side of the aluminum foil roll; the third drying oven unit is used to dry the back side of the aluminum foil roll and convey it to the winding unit. The first and second coating units can coat both the front and back sides of the aluminum foil, while the second and third drying oven units can achieve multi-stage baking effects. The hot air knife unit can precisely control the airflow temperature, speed, and angle of action, achieving controlled peeling of the aluminum foil surface oxide layer, optimization of micro-roughness, and synergistic treatment of contaminant removal. This reduces surface residual particles by 70%. Using a scanning electron microscope (SEM), the surface roughness Ra value of the treated aluminum foil is stabilized at 0.2-0.4 μm (measured by a stylus profilometer), and the adhesion of the coated material is improved by 40%. Energy consumption is reduced by 35% compared to traditional processes.
[0056] It should be noted that the various embodiments described above with reference to the accompanying drawings are only illustrative of the present invention and not intended to limit its scope. Those skilled in the art should understand that any modifications or equivalent substitutions made to the present invention without departing from its spirit and scope should be covered within the scope of the present invention. Furthermore, unless the context otherwise requires, singular terms include plural forms, and vice versa. Additionally, unless specifically stated otherwise, all or part of any embodiment may be used in conjunction with all or part of any other embodiment.
Claims
1. A surface quality treatment device for carbon-coated aluminum foil, characterized in that, include: The frame and the unwinding device, hot air knife device, first drying oven device, first coating device, second drying oven device, third drying oven device, and winding device are installed sequentially at the corresponding work positions of the frame according to the production process. The unwinding device is used to unwind the aluminum foil on the aluminum foil roll, and the winding device is used to wind up the aluminum foil that has been unwound from the aluminum foil roll and processed in sequence by the hot air knife device, the first drying oven device, the first coating device, the second drying oven device, the second coating device and the third drying oven device. The hot air knife device is used to remove the oil film from the aluminum foil by shearing, peeling, and pyrolysis oxidation; the first drying oven device is used to dry the aluminum foil after the oil film has been removed; the first coating device is used to coat the front side of the aluminum foil that has passed through its corresponding process; the second drying oven device is used to dry the front side of the aluminum foil after front coating; the second coating device is used to coat the back side of the aluminum foil that has passed through its corresponding process; the third drying oven device is used to dry the back side of the aluminum foil after back coating and convey it to the winding device.
2. The surface quality treatment device for carbon-coated aluminum foil according to claim 1, characterized in that, The unwinding device and the winding device are disposed opposite to each other at both ends of the frame. The hot air knife device and the first coating device are respectively disposed at intervals between the unwinding device and the winding device. The second drying oven device is disposed above the unwinding device. The second coating device is disposed on the side of the unwinding device away from the winding device, and the second coating device is flush with the first coating device. The third drying oven device is disposed above the second drying oven device.
3. The surface quality treatment device for carbon-coated aluminum foil according to claim 2, characterized in that, The orthographic projection of the second oven device toward the unwinding device, the hot air knife device, and the first coating device falls entirely within the area formed by the unwinding device, the hot air knife device, and the first coating device; the orthographic projection of the third oven device toward the second oven device and the second coating device falls entirely within the area formed by the second oven device and the second coating device.
4. The surface quality treatment device for carbon-coated aluminum foil according to claim 1, characterized in that, The hot air knife device includes a support frame, an angle adjustment mechanism fixed to the support frame, and a first hot air knife and a second hot air knife fixed to the angle adjustment mechanism; the support frame is installed on the frame, the air outlets of the first hot air knife and the air outlets of the second hot air knife are spaced apart and opposite to each other, and the angle adjustment mechanism is used to adjust the hot air incident angle of the first hot air knife and the second hot air knife.
5. The surface quality treatment device for carbon-coated aluminum foil according to claim 4, characterized in that, The hot air incident angle is 30° to 75°; wherein, the hot air incident angle is the angle formed between the air outlet direction of the first hot air knife and the surface of the aluminum foil or the angle formed between the air outlet direction of the second hot air knife and the surface of the aluminum foil.
6. The surface quality treatment device for carbon-coated aluminum foil according to claim 4, characterized in that, The first hot air knife and the second hot air knife have the same structure; The first hot air knife includes a hollow blade body, a first pipe and a second pipe respectively connected to one side of the blade body, a threaded rod rotatably disposed on the blade body, and a blade connected to the end of the blade body; the air vent is formed through the blade and communicates the outside with the inside of the blade body; one end of the first pipe and the second pipe are respectively used to connect to an external multi-stage eddy current generator, and the other end of the first pipe and the second pipe are respectively connected to the inside of the blade body; the threaded rod is connected to the angle adjustment mechanism.
7. The surface quality treatment device for carbon-coated aluminum foil according to claim 6, characterized in that, The blade has a slit-type nozzle structure.
8. The surface quality treatment device for carbon-coated aluminum foil according to claim 4, characterized in that, The angle adjustment mechanism includes a drive motor fixed to the support frame and a rotating bracket fixed to the output end of the drive motor; the first hot air knife and the second hot air knife are respectively fixed to the rotating bracket.
9. The surface quality treatment device for carbon-coated aluminum foil according to claim 6, characterized in that, The carbon-coated aluminum foil surface quality treatment device further includes a control console mechanism, a hot air blower electrically connected to the control console mechanism, and a dynamic temperature control system; the control console mechanism is used to control the operation of the hot air blower, and the air outlet of the hot air blower is connected to the first pipe and the second pipe respectively; the dynamic temperature control system is set between the first drying oven device and the hot air knife device, and the dynamic temperature control system is used to monitor the surface of the aluminum foil in real time.
10. The surface quality treatment device for carbon-coated aluminum foil according to claim 1, characterized in that, The carbon-coated aluminum foil surface quality treatment device further includes a first infrared temperature measurement module and a second infrared temperature measurement module; the first infrared temperature measurement module is installed in the second oven device and is used to measure the baking temperature inside the second oven device; the second infrared temperature measurement module is installed in the third oven device and is used to measure the baking temperature inside the third oven device.