A photovoltaic frame aluminum profile anodizing device and process

Abstract

The invention discloses an anodizing device and process for aluminum profiles of a photovoltaic frame, and relates to the field of electrolytic oxidation technology, wherein the device comprises: a bracket; a movable frame, which is movably arranged on the top of the bracket, and a winch is arranged on the movable frame, and the winch has a retractable end; a pull rope, one end of which is connected to the retractable end, and the other end is a free end; a mounting mechanism, which is connected to the free end, and the mounting mechanism is used to mount the aluminum profile; an oxidation tank, in which an electrolyte, a concentration sensor, and a temperature sensor are pre-installed; a blocking strip, which has a notch, and the notch can correspond to the notch of the oxidation tank, and the oxidation tank can be blocked or unblocked by moving the blocking strip; a controller, which judges whether the aluminum profile reaches the target film thickness based on a film thickness increase rate model, avoids quality problems caused by over-oxidation or insufficient oxidation, and can accurately control the oxidation time.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic oxidation, in particular to an aluminum profile anodizing device and process for a photovoltaic frame. Background Art

[0002] In the manufacturing process of photovoltaic frames, anodizing of aluminum profiles is an indispensable part. This process not only directly affects the corrosion resistance and aesthetics of aluminum profiles, but is also closely related to their service life. However, traditional anodizing devices for aluminum profiles have some problems during the process, especially in terms of time and energy control.

[0003] Generally speaking, during the anodizing process of aluminum profiles, the concentration and temperature of the electrolyte are the changing factors that affect the quality of the oxide film and production efficiency. In order to obtain the ideal oxide film thickness and performance, the range of electrolyte concentration and temperature is usually preset in the controller. However, in actual operation, the electrolyte concentration and temperature are not fixed values, and they will change with the passage of processing time, the addition and removal of aluminum profiles, and other factors.

[0004] When the electrolyte concentration exceeds the preset range, the external liquid supply equipment will adjust the electrolyte to ensure that its concentration is within the appropriate range. Similarly, when the electrolyte temperature exceeds the preset range, the water bath will heat or cool the electrolyte to maintain its temperature stability. Due to the instability of electrolyte concentration and temperature, the setting time for anodizing treatment of aluminum profiles in the prior art is often long. This is to ensure that when the electrolyte concentration is at a low value or the electrolyte temperature is at a low value, the film thickness of the aluminum profile can still meet the standard. However, although this approach ensures product quality, it also brings problems such as energy waste, time waste, and inconsistent product quality.

[0005] In general, firstly, too long processing time means more energy consumption. Secondly, long waiting and processing time reduces production efficiency and increases production costs.

[0006] Therefore, it is necessary to provide an aluminum profile anodizing device and process for a photovoltaic frame to solve the above problems. Summary of the invention

[0007] To achieve the above object, the present invention provides the following technical solution: an anodizing device for an aluminum profile of a photovoltaic frame, comprising:

[0008] The bracket is gantry-shaped and extends along the Y direction;

[0009] A mobile frame, which is movably arranged on the top of the bracket, and a winch is arranged on the mobile frame, and the winch has a retractable end;

[0010] A pull rope, one end of which is connected to the retractable end and the other end is a free end;

[0011] A mounting mechanism connected to the free end, the mounting mechanism being used to mount the aluminum profile;

[0012] A water bath tank, in which an oxidation tank is half embedded, wherein the oxidation tank is pre-installed with an electrolyte, a concentration sensor, and a temperature sensor;

[0013] A blocking strip having a notch, wherein the notch can correspond to the notch of the oxidation trough, and the oxidation trough can be blocked or unblocked by moving the blocking strip;

[0014] A controller is provided with a film thickness increase rate model. The controller determines whether the aluminum profile has reached a target film thickness based on the film thickness increase rate model. When the aluminum profile has reached the target film thickness, the aluminum profile moves away from the oxidation tank under the action of a winch and a pull rope, and then the blocking belt blocks the oxidation tank.

[0015] Further, preferably, the concentration sensor is used to obtain the electrolyte concentration;

[0016] The temperature sensor is used to obtain the electrolyte temperature;

[0017] A visual sensor is provided on one side of the bracket to obtain the surface area of ​​the aluminum profile;

[0018] The film thickness increase rate model is:

[0019] ;

[0020] in,

[0021] is the rate of film thickness increase; is the film thickness; It’s time; is the reaction rate constant; is the current density; is the electrolyte concentration; is the activation energy; is the gas constant; is the electrolyte temperature; is the material coefficient;

[0022] in,

[0023] ;

[0024] in, is the current intensity, It is the surface area of ​​the aluminum profile.

[0025] Further, as a preference, based on the time required for the film thickness to increase from the initial film thickness to the target film thickness, the film thickness increase rate model is integrated to obtain:

[0026] ;

[0027] in, is the initial film thickness;

[0028] is the target film thickness;

[0029] It is the time required for the film thickness to increase from the initial film thickness to the target film thickness.

[0030] Further, as a preference, the activation energy is fitted based on the Arrhenius formula:

[0031] ;

[0032] in, is the frequency factor.

[0033] Further, preferably, the mounting mechanism comprises:

[0034] A horizontal rack having a plurality of mounting holes for mounting aluminum profiles;

[0035] A first card seat, which is fixed to one end of the horizontal bracket, and the bottom of the first card seat has a conductive head;

[0036] A second card seat, which is fixed to an end of the horizontal bracket away from the first card seat;

[0037] The water bath is fixed with a first card slot and a second card slot which are symmetrically arranged;

[0038] The first card slot is used to carry the first card holder, and a positive power supply head for supplying power to the conductive head is arranged in the first card slot;

[0039] The second card slot is used to carry the second card holder;

[0040] The oxidation tank is powered by a negative electrode power supply head.

[0041] Further, as a preference, both the first card seat and the second card seat are provided with rollers;

[0042] Two symmetrically arranged horizontal frames are fixed on the bracket;

[0043] When the mobile frame moves on the bracket along the Y direction, the winch reels the pull rope and makes the roller fit the lower surface of the horizontal frame.

[0044] Further, as a preference, the first card slot is fixed on a first extension frame, the first extension frame is fixed on the water bath, and the first extension frame is also provided with a first winding mechanism;

[0045] The second card slot is fixed on a second extension frame, the second extension frame is fixed on the water bath, and the second extension frame is also provided with a second winding mechanism;

[0046] The first reeling mechanism and the second reeling mechanism jointly reel up the sealing tape.

[0047] Further, as a preference, the first winding mechanism comprises:

[0048] A first winding wheel, the first winding wheel is rotatably disposed on the first extension frame;

[0049] a first driven wheel, coaxially fixed to one side of the first winding wheel;

[0050] A driving wheel is rotatably disposed on the first extension frame and is higher than the first winding wheel. When the first clamping seat descends, the first clamping seat can drive the driving wheel to rotate clockwise;

[0051] a second driven wheel connected to the driving wheel by a ratchet mechanism, and when the driving wheel rotates clockwise, the second driven wheel rotates synchronously, and when the driving wheel rotates counterclockwise, the second driven wheel remains stationary; and

[0052] A transmission belt, which is transmission-connected between the second driven wheel and the first driven wheel;

[0053] The second winding mechanism comprises a second winding wheel, which is rotatably disposed on the second extension frame and driven to rotate by an external motor.

[0054] Further, preferably, the oxidation tank includes a first tank body and a second tank body, wherein the first tank body is made of a heat-conducting material, the second tank body is made of a heat-insulating material, the first tank body is sealed and wrapped in the water bath, and a seat is also provided on the water bath for straightening the second tank body.

[0055] An anodizing process for aluminum profiles of photovoltaic frames comprises the following steps:

[0056] S1. Clamp the aluminum profile with a hook and mount the hook on the mounting mechanism;

[0057] S2. The mobile frame moves to the top of the oxidation tank, starts the winch, and slowly immerses the mounted aluminum profile into the electrolyte of the oxidation tank through the pull rope;

[0058] S3. The aluminum profile undergoes an anodic oxidation reaction in the electrolyte, gradually forming an oxide film;

[0059] S4. Monitor the state of the electrolyte through a concentration sensor and a temperature sensor;

[0060] S5. The controller predicts the time required for the film thickness to increase from the initial film thickness to the target film thickness according to the film thickness increase rate model. When the time is reached, the controller sends a signal, and the winch starts working to slowly pull the aluminum profile out of the oxidation tank through the pull rope;

[0061] S6. After the aluminum profile is removed, move the sealing tape so that it completely covers the opening of the oxidation tank to ensure that the oxidation tank is sealed.

[0062] Compared with the prior art, the present invention provides an aluminum profile anodizing device and process for photovoltaic frames, which has the following beneficial effects:

[0063] In the present invention, the device has a built-in film thickness increase rate model, which can predict the progress of anodizing and the film thickness increase rate based on the real-time monitored electrolyte concentration, electrolyte temperature, and aluminum profile material, size and other parameters. Based on these predicted data, the controller can accurately calculate and control the processing time of the aluminum profile in the oxidation tank, thereby achieving targeted control. Compared with the traditional fixed time control, this control method can more accurately achieve the target film thickness and avoid quality problems caused by over-oxidation or under-oxidation. At the same time, since the oxidation time can be accurately controlled, unnecessary energy and time waste is also significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a structural schematic diagram of an aluminum profile anodizing device for a photovoltaic frame;

[0065] Figure 2 for Figure 1 Schematic diagram of the lower part of the structure;

[0066] Figure 3 for Figure 1 Schematic diagram of the upper part of the structure;

[0067] Figure 4 It is a three-dimensional structural schematic diagram of a bracket and a movable frame in an aluminum profile anodizing device for a photovoltaic frame;

[0068] Figure 5 It is a flow chart of an anodizing process of aluminum profiles for photovoltaic frames;

[0069] In the figure: 1. oxidation tank; 2. water bath; 3. first winding mechanism; 4. bracket; 5. mobile frame; 6. pull rope; 7. mounting mechanism; 8. second winding mechanism; 9. inflation tube; 10. first card slot; 11. second card slot; 12. blocking belt; 13. visual sensor; 101. first tank body; 102. second tank body; 21. card seat; 22. first extension frame; 23. second extension frame; 31. first driven wheel; 32. driving wheel; 33. second driven wheel; 41. horizontal frame; 71. horizontal hanging frame; 72. first card seat; 73. second card seat; 74. roller. DETAILED DESCRIPTION

[0070] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0071] Example: Please refer to Figure 1-Figure 5 In an embodiment of the present invention, a photovoltaic frame aluminum profile anodizing device is provided, comprising:

[0072] The bracket 4 is gantry-shaped and extends along the Y direction;

[0073] A movable frame 5, which is movably arranged on the top of the bracket 4, and a winch is arranged on the movable frame 5, and the winch has a retractable end;

[0074] A pull rope 6, one end of which is connected to the retractable end and the other end is a free end;

[0075] A mounting mechanism 7 connected to the free end, the mounting mechanism 7 being used for mounting the aluminum profile;

[0076] A water bath 2 is half-embedded with an oxidation tank 1, wherein the oxidation tank 1 is pre-installed with an electrolyte, a concentration sensor, and a temperature sensor. The oxidation tank 1 can also be connected to a gas charging pipe 9 for supplying gas to improve the uniformity of the electrolyte;

[0077] A blocking strip 12 having a notch, wherein the notch can correspond to the notch of the oxidation tank 1, and the oxidation tank 1 can be blocked or unblocked by moving the blocking strip 12;

[0078] A controller is provided with a film thickness increase rate model. The controller determines whether the aluminum profile has reached the target film thickness based on the film thickness increase rate model. When the aluminum profile has reached the target film thickness, the aluminum profile moves away from the oxidation tank 1 under the action of the winch and the pull rope 6, and then the blocking belt 12 blocks the oxidation tank 1.

[0079] Wherein, the concentration sensor is used to obtain the electrolyte concentration;

[0080] The temperature sensor is used to obtain the electrolyte temperature;

[0081] Generally speaking, the controller has a preset electrolyte concentration range, and when the electrolyte concentration exceeds the electrolyte concentration range, the external liquid supply device adjusts the electrolyte concentration;

[0082] Similarly, the controller is preset with an electrolyte temperature range, and when the electrolyte temperature exceeds the electrolyte temperature range, the water bath 2 adjusts the electrolyte temperature;

[0083] However, since the electrolyte concentration and electrolyte temperature are not fixed values, in the prior art, the anodizing treatment time for aluminum profiles is often set to be longer, so that when the electrolyte concentration and electrolyte temperature are at a lower value, the aluminum profile film thickness can still meet the standard. In this case, it is easy to cause energy waste, time waste and inconsistent product quality.

[0084] In this embodiment, the device has a built-in film thickness increase rate model, which can predict the progress of anodizing and the rate of film thickness increase based on the real-time monitored electrolyte concentration, electrolyte temperature, and aluminum profile material, size and other parameters. Based on these predicted data, the controller can accurately calculate and control the processing time of the aluminum profile in the oxidation tank, thereby achieving targeted control. Compared with the traditional fixed time control, this control method can more accurately achieve the target film thickness and avoid quality problems caused by over-oxidation or under-oxidation. At the same time, since the oxidation time can be accurately controlled, unnecessary energy and time waste is also significantly reduced.

[0085] At the same time, the device is also provided with a blocking belt 12, which can block the oxidation tank 1, achieve a certain degree of heat preservation and prevent evaporation, and further reduce energy consumption.

[0086] Furthermore, the concentration sensor is used to obtain the electrolyte concentration;

[0087] The temperature sensor is used to obtain the electrolyte temperature;

[0088] A visual sensor 13 is provided on one side of the bracket 4 for obtaining the surface area of ​​the aluminum profile;

[0089] The technology of using the visual sensor 13 to obtain the surface area of ​​the aluminum profile is already available, and the following examples are introduced:

[0090] The visual sensor 13 first captures a two-dimensional image of the aluminum profile;

[0091] The captured 2D images are then transmitted to a data processing unit for analysis;

[0092] The data processing unit pre-processes the captured two-dimensional images, including operations such as denoising and contrast enhancement, to improve the accuracy of subsequent analysis;

[0093] Next, the data processing unit may use an edge detection algorithm (such as Canny edge detection) to identify the edges of the aluminum profile;

[0094] After identifying the edge, the data processing unit can estimate the surface area of ​​the aluminum profile by calculating the area enclosed by the edge;

[0095] Although convolutional neural networks have powerful capabilities in the field of image recognition and processing, in this application, directly using CNN to calculate the surface area of ​​aluminum profiles may not be the most direct or efficient method;

[0096] CNNs are usually used for more complex image recognition tasks like object detection, classification, etc., but in this specific case, simple image processing algorithms and geometric calculations will suffice.

[0097] The film thickness increase rate model is:

[0098] ;

[0099] in,

[0100] is the rate of film thickness increase; is the film thickness; It’s time; is the reaction rate constant; is the current density; is the electrolyte concentration; is the activation energy; is the gas constant; is the electrolyte temperature; is the material coefficient;

[0101] in,

[0102] ;

[0103] in, is the current intensity, It is the surface area of ​​the aluminum profile.

[0104] Furthermore, based on the time required for the film thickness to increase from the initial film thickness to the target film thickness, the film thickness increase rate model is integrated to obtain:

[0105] ;

[0106] Since the right side is integrated over time, it is simply equal to the change in time -0= ;

[0107] ;

[0108] Now we can solve:

[0109] ;

[0110] Now we can solve:

[0111] ;

[0112] in, is the initial film thickness;

[0113] is the target film thickness;

[0114] It is the time required for the film thickness to increase from the initial film thickness to the target film thickness.

[0115] In addition, the activation energy is fitted based on the Arrhenius formula:

[0116] ;

[0117] in, is the frequency factor.

[0118] To fit the Arrhenius equation to the experimental data, we take the natural logarithm of both sides of the equation and obtain:

[0119] ;

[0120] Will right Perform a linear fit (based on experimental data) in which the slope yes ,intercept yes ;

[0121] in,

[0122] ;

[0123] in,

[0124] ;

[0125] ;

[0126] From the slope , and the activation energy is obtained: ;

[0127] From the intercept , and get the frequency factor: .

[0128] In this embodiment, the mounting mechanism 7 includes:

[0129] A horizontal rack 71 having a plurality of mounting holes for mounting aluminum profiles;

[0130] A first card seat 72, which is fixed to one end of the horizontal bracket 71, and the bottom of the first card seat 72 has a conductive head;

[0131] A second holder 73, fixed to an end of the horizontal bracket 71 away from the first holder 72;

[0132] The water bath 2 is fixed with a first card slot 10 and a second card slot 11 which are symmetrically arranged;

[0133] The first card slot 10 is used to carry the first card seat 72, and a positive power supply head for supplying power to the conductive head is arranged in the first card slot 10;

[0134] The second card slot 11 is used to carry the second card seat 73;

[0135] The oxidation tank 1 is powered by a negative electrode power supply head.

[0136] As a preferred embodiment, the first card seat 72 and the second card seat 73 are both provided with rollers 74;

[0137] The bracket 4 is fixed with two symmetrically arranged horizontal frames 41;

[0138] When the moving frame 5 moves on the bracket 4 along the Y direction, the hoist reels in the pull rope 6 and makes the roller 74 fit the lower surface of the horizontal frame 41 .

[0139] It needs to be explained that in order to fully reduce energy consumption, in the process of driving the mounting mechanism 7 to move, the mounting mechanism 7 should be kept in a lower position as much as possible, which is conducive to the faster immersion of the aluminum profile into the oxidation tank 1. However, this may also cause the mounting mechanism 7 to shake during the movement. In this embodiment, when the mounting mechanism 7 needs to be moved, the winch reels the pull rope 6, and the other end of the pull rope 6 is connected to the mounting mechanism 7. As the mounting mechanism 7 moves upward, the roller 74 gradually fits with the lower surface of the horizontal frame 41 to form a stable support. Under the interaction between the roller 74 and the horizontal frame 41, the mounting mechanism 7 (and the aluminum profile thereon) can move smoothly on the bracket 4.

[0140] In this embodiment, the first card slot 10 is fixed on the first extension frame 22, the first extension frame 22 is fixed on the water bath 2, and the first extension frame 22 is also provided with a first winding mechanism 3;

[0141] The second card slot 11 is fixed on the second extension frame 23, the second extension frame 23 is fixed on the water bath 2, and the second extension frame 23 is also provided with a second winding mechanism 8;

[0142] The first winding mechanism 3 and the second winding mechanism 8 wind up the sealing tape 12 together.

[0143] In this embodiment, through the coordinated work of the first reeling mechanism 3 and the second reeling mechanism 8, the position of the blocking tape 12 can be flexibly controlled as needed, thereby adapting to different operational requirements.

[0144] In addition, temporary sealing or isolation by the blocking tape 12 can effectively prevent the treatment liquid from overflowing or being contaminated, thereby improving the safety of the operation process.

[0145] In addition, the introduction of the first extension frame 22 and the second extension frame 23 enables the first card slot 10 and the second card slot 11 to be stably fixed on the water bath 2, which is convenient for maintenance and replacement of the equipment.

[0146] In addition, by arranging the first winding mechanism 3 and the second winding mechanism 8 on the first extension frame 22 and the second extension frame 23 respectively, the space can be used more reasonably and the floor space of the equipment can be reduced.

[0147] In addition, the first winding mechanism 3 comprises:

[0148] A first winding wheel, the first winding wheel is rotatably disposed on the first extension frame 22;

[0149] A first driven wheel 31, which is coaxially fixed to one side of the first winding wheel;

[0150] The driving wheel 32 is rotatably disposed on the first extension frame 22 and is higher than the first winding wheel. When the first clamping seat 72 descends, the first clamping seat 72 can drive the driving wheel 32 to rotate clockwise;

[0151] A second driven wheel 33 is connected to the driving wheel 32 by a ratchet mechanism, and when the driving wheel 32 rotates clockwise, the second driven wheel 33 rotates synchronously, and when the driving wheel 32 rotates counterclockwise, the second driven wheel 33 remains stationary, wherein the ratchet mechanism is an existing structure and is not described in detail here; and

[0152] A transmission belt, which is transmission-connected between the second driven wheel 33 and the first driven wheel 31;

[0153] The second winding mechanism 8 includes a second winding wheel, which is rotatably disposed on the second extension frame 23 and driven to rotate by an external motor.

[0154] The first winding mechanism 3 automatically winds up the blocking tape 12 by utilizing the descending action of the first clamping seat 72 without manual intervention. At this time, the notch of the blocking tape 12 can correspond to the notch of the oxidation tank 1, so that the subsequent aluminum profile passes through the blocking tape 12 and enters the oxidation tank 1.

[0155] When the first clamping seat 72 rises, the second winding mechanism 8 winds up the blocking tape 12 , so that the blocking tape 12 blocks the oxidation tank 1 .

[0156] In this embodiment, the oxidation tank 1 includes a first tank body 101 and a second tank body 102, wherein the first tank body 101 is made of a heat-conducting material, and the second tank body 102 is made of a heat-insulating material. The first tank body 101 is sealed and wrapped in the water bath 2, and a holder 21 is also provided on the water bath 2 for straightening the second tank body 102.

[0157] In this embodiment, the first tank body 101 is made of a heat-conducting material, which can quickly and evenly transfer heat and improve the effect of anodizing treatment.

[0158] The second tank body 102 is made of heat-insulating material, which can reduce heat loss and keep the temperature of the electrolyte stable.

[0159] In this embodiment, the arrangement of the holder 21 can ensure that the second tank body 102 maintains a stable position in the water bath 2, and prevents the second tank body 102 from moving or deforming due to external force or temperature changes.

[0160] Based on this, this embodiment also provides an anodizing process for aluminum profiles of photovoltaic frames, comprising the following steps:

[0161] S1. Clamp the aluminum profile with a hook and mount the hook on the mounting mechanism 7, wherein the hook is an existing clamping mechanism and is made of conductive material, which will not be described in detail here;

[0162] S2. The mobile frame 5 is moved to the top of the oxidation tank 1, the winch is started, and the mounted aluminum profile is slowly immersed in the electrolyte of the oxidation tank 1 through the pull rope 6;

[0163] S3. The aluminum profile undergoes an anodic oxidation reaction in the electrolyte, gradually forming an oxide film;

[0164] S4. Monitor the state of the electrolyte through a concentration sensor and a temperature sensor;

[0165] S5. The controller predicts the time required for the film thickness to increase from the initial film thickness to the target film thickness according to the film thickness increase rate model. When the time is reached, the controller sends a signal, and the winch starts to work, and the aluminum profile is slowly pulled out of the oxidation tank 1 through the pull rope 6, wherein the film thickness increase rate model is:

[0166] ;

[0167] in,

[0168] is the rate of film thickness increase; is the film thickness; It’s time; is the reaction rate constant; is the current density; is the electrolyte concentration; is the activation energy; is the gas constant; is the electrolyte temperature; is the material coefficient;

[0169] in,

[0170] ;

[0171] in, is the current intensity, is the surface area of ​​the aluminum profile;

[0172] S6. After the aluminum profile is removed, the sealing tape 12 is moved to completely cover the opening of the oxidation trough 1 to ensure that the oxidation trough 1 is sealed, wherein the position of the sealing tape 12 can be flexibly controlled as needed through the coordinated work of the first winding mechanism 3 and the second winding mechanism 8, and the sealing tape 12 has a notch, which can correspond to the notch of the oxidation trough 1. By moving the sealing tape 12, the oxidation trough 1 can be sealed, or the blockage of the oxidation trough 1 can be released.

[0173] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An aluminum profile anodizing device for a photovoltaic frame, characterized in that: include: The support (4) is gantry-shaped and extends along the Y direction; A movable frame (5) is movably arranged on the top of the bracket (4), and a winch is arranged on the movable frame (5), and the winch has a retractable end; A pull rope (6), one end of which is connected to the retractable end and the other end is a free end; A mounting mechanism (7), connected to the free end, the mounting mechanism (7) being used for mounting the aluminum profile; A water bath (2) in which an oxidation tank (1) is half-embedded, wherein the oxidation tank (1) is pre-installed with an electrolyte, a concentration sensor, and a temperature sensor; A blocking strip (12) having a notch, wherein the notch can correspond to the notch of the oxidation trough (1), and the oxidation trough (1) can be blocked or the blockage of the oxidation trough (1) can be released by moving the blocking strip (12); A controller, wherein a film thickness increase rate model is preset in the controller, and the controller determines whether the aluminum profile has reached a target film thickness based on the film thickness increase rate model. When the aluminum profile has reached the target film thickness, the aluminum profile moves away from the oxidation trough (1) under the action of a winch and a pull rope (6), and then the blocking belt (12) blocks the oxidation trough (1); The concentration sensor is used to obtain the electrolyte concentration; The temperature sensor is used to obtain the electrolyte temperature; A visual sensor (13) is provided on one side of the bracket (4) for obtaining the surface area of ​​the aluminum profile; The film thickness increase rate model is: in, is the rate of increase of film thickness; T is the film thickness; t is the time; k is the reaction rate constant; J is the current density; E c is the electrolyte concentration; E a is the activation energy; R is the gas constant; T e is the electrolyte temperature; M is the material coefficient; in, Where, I is the current intensity, A is the surface area of ​​the aluminum profile; Based on the time required for the film thickness to increase from the initial film thickness to the target film thickness, the film thickness increase rate model is integrated to obtain: Where T0 is the initial film thickness; T f is the target film thickness; t f It is the time required to increase from the initial film thickness to the target film thickness; Fitting activation energy based on Arrhenius formula: Where C is the frequency factor; To fit the Arrhenius equation to the experimental data, we take the natural logarithm of both sides of the equation and obtain: Based on experimental data, lnk Perform a linear fit. In this linear relationship, the slope m is The intercept b is lnC; in, in, b=lnC From the slope m, we get the activation energy: E a = -Rm; From the intercept b, we get the frequency factor: C = exp(b).

2. The anodizing device for aluminum profiles of a photovoltaic frame according to claim 1, characterized in that: The mounting mechanism (7) comprises: A horizontal rack (71) having a plurality of mounting holes for mounting aluminum profiles; A first card seat (72) is fixed to one end of the horizontal bracket (71), and a conductive head is provided at the bottom of the first card seat (72); A second card seat (73) fixed to an end of the horizontal bracket (71) away from the first card seat (72); The water bath (2) is fixed with a first clamping slot (10) and a second clamping slot (11) which are symmetrically arranged; The first card slot (10) is used to carry the first card seat (72), and a positive power supply head for supplying power to the conductive head is arranged in the first card slot (10); The second card slot (11) is used to carry the second card seat (73); The oxidation tank (1) is powered by a negative electrode power supply head.

3. The anodizing device for aluminum profiles of a photovoltaic frame according to claim 2, characterized in that: The first card seat (72) and the second card seat (73) are both provided with rollers (74); Two symmetrically arranged horizontal frames (41) are fixed on the support (4); When the movable frame (5) moves on the bracket (4) along the Y direction, the winch reels the pull rope (6) and makes the roller (74) fit the lower surface of the horizontal frame (41).

4. The anodizing device for aluminum profiles of a photovoltaic frame according to claim 2, characterized in that: The first card slot (10) is fixed on a first extension frame (22), the first extension frame (22) is fixed on the water bath (2), and the first extension frame (22) is also provided with a first winding mechanism (3); The second clamping slot (11) is fixed on a second extension frame (23), the second extension frame (23) is fixed on the water bath (2), and a second winding mechanism (8) is also provided on the second extension frame (23); The first reeling mechanism (3) and the second reeling mechanism (8) jointly reel up the sealing tape (12).

5. The anodizing device for aluminum profiles of a photovoltaic frame according to claim 4, characterized in that: The first winding mechanism (3) comprises: A first winding wheel, the first winding wheel being rotatably disposed on a first extension frame (22); A first driven wheel (31), which is coaxially fixed to one side of the first winding wheel; a driving wheel (32) which is rotatably disposed on the first extension frame (22) and is higher than the first winding wheel, and when the first clamping seat (72) descends, the first clamping seat (72) drives the driving wheel (32) to rotate clockwise; a second driven wheel (33) connected to the driving wheel (32) by a ratchet mechanism, and when the driving wheel (32) rotates clockwise, the second driven wheel (33) rotates synchronously, and when the driving wheel (32) rotates counterclockwise, the second driven wheel (33) remains stationary; and A transmission belt, which is transmission-connected between the second driven wheel (33) and the first driven wheel (31); The second winding mechanism (8) comprises a second winding wheel, which is rotatably arranged on the second extension frame (23) and driven to rotate by an external motor.

6. The anodizing device for aluminum profiles of a photovoltaic frame according to claim 1, characterized in that: The oxidation tank (1) comprises a first tank body (101) and a second tank body (102), wherein the first tank body (101) is made of a heat-conducting material, and the second tank body (102) is made of a heat-insulating material. The first tank body (101) is sealed and wrapped in the water bath tank (2), and a holder (21) is also provided on the water bath tank (2) for straightening the second tank body (102).

7. A photovoltaic frame aluminum profile anodizing process, which uses the photovoltaic frame aluminum profile anodizing device as claimed in any one of claims 1 to 6, characterized in that: The steps include: S1. Clamp the aluminum profile with a hook and mount the hook on the mounting mechanism (7); S2. The mobile frame (5) is moved to the top of the oxidation tank (1), the winch is started, and the mounted aluminum profile is slowly immersed in the electrolyte of the oxidation tank (1) through the pull rope (6); S3. The aluminum profile undergoes an anodic oxidation reaction in the electrolyte, gradually forming an oxide film; S4. Monitor the state of the electrolyte through a concentration sensor and a temperature sensor; S5. The controller predicts the time required for the film thickness to increase from the initial film thickness to the target film thickness according to the film thickness increase rate model. When the time is reached, the controller sends a signal, and the winch starts to work, and the aluminum profile is slowly pulled out of the oxidation tank (1) through the pull rope (6); S6. After the aluminum profile is removed, the blocking strip (12) is moved to completely cover the opening of the oxidation trough (1) to ensure that the oxidation trough (1) is blocked.

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