Preparation method and device of water-based long-acting antirust coating

Abstract

The invention relates to the technical field of coating preparation, in particular to a preparation method and device of a water-based long-acting anti-rust coating. The preparation method comprises the steps that a water-based resin solution is prepared, and the water-based resin solution comprises one or more of water-based epoxy resin, water-based acrylic resin and water-based polyurethane resin; adding an anti-rust pigment into the water-based resin solution, wherein the anti-rust pigment comprises one or more of zinc phosphate, aluminum triphosphate, molybdate and ferrotitanium black; adding a dispersing agent and a wetting agent, and uniformly mixing to form anti-rust slurry; adding the anti-rust slurry, a coalescing agent, a defoaming agent, a flatting agent and a preservative into a preparation device, mixing, and uniformly stirring to form a water-based anti-rust coating; the water-based antirust coating is filtered, impurities are removed, and the final water-based long-acting antirust coating is obtained, so that the adhesive capacity can be improved, and the antirust performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating preparation, and in particular to a method and device for preparing a water-based long-acting anti-rust coating. Background Art

[0002] Anti-rust paint is a special coating material designed to protect metal surfaces from corrosion. It forms a dense protective film on the metal surface, effectively isolating moisture, oxygen and other harmful substances in the air that may cause metal rust, thereby achieving the effect of rust prevention. Anti-rust paint is usually composed of film-forming substances (such as epoxy resin, acrylic resin or polyurethane resin), anti-rust pigments (such as zinc phosphate, aluminum tripolyphosphate, etc.), solvents and various additives.

[0003] The existing anti-rust coating has poor adhesion during use, so the anti-rust effect during use is greatly affected. Summary of the invention

[0004] The object of the present invention is to provide a method and device for preparing a water-based long-term anti-rust coating, aiming to improve the adhesion ability and thus improve the anti-rust performance.

[0005] To achieve the above-mentioned object, in a first aspect, the present invention provides a method for preparing a water-based long-term anti-rust coating, comprising preparing a water-based resin solution, wherein the water-based resin solution comprises one or more of a water-based epoxy resin, a water-based acrylic resin and a water-based polyurethane resin;

[0006] Adding anti-rust pigment into the aqueous resin solution, the anti-rust pigment comprises one or more of zinc phosphate, aluminum tripolyphosphate, molybdate and iron titanium black;

[0007] Add dispersant and wetting agent, mix well to form anti-rust slurry;

[0008] Add the anti-rust slurry, film-forming aid, defoamer, leveling agent and preservative into the preparation device, mix and stir evenly to form a water-based anti-rust coating;

[0009] The water-based anti-rust coating is filtered to remove impurities, thereby obtaining the final water-based long-acting anti-rust coating.

[0010] In the second aspect, the present invention also provides a preparation device for water-based long-lasting anti-rust coating, including a base, a support frame, a stirring shell, a cover plate, a stirring assembly, a slurry circulation assembly and a bubble monitoring assembly. The support frame is fixedly connected to the base and is located on one side of the support frame. The stirring shell is fixed on the support frame, the cover plate is slidably arranged on the stirring shell, the stirring assembly is arranged on the cover plate, and the slurry circulation assembly is arranged on one side of the stirring assembly to drive the slurry in the stirring shell to circulate up and down. The bubble monitoring assembly is used to take pictures to detect bubble conditions and control the rotation speed of the stirring assembly when the slurry circulates.

[0011] Wherein, the cover plate includes a cover plate body, a control cylinder, a sealing ring, an observation window and a baffle, the cover plate body is slidably arranged on the top of the stirring shell, the output end of the control cylinder is connected to the cover plate body, the sealing ring is arranged between the cover plate body and the stirring shell, the observation window is arranged at the bottom of the cover plate body, and the baffle is slidably arranged on one side of the observation window.

[0012] Wherein, the stirring assembly includes a stirring motor, a stirring rod and a stirring blade. The stirring rod is rotatably arranged on the cover body and is located in the stirring shell. The output end of the stirring motor is connected to the stirring rod, and the stirring blade is fixed on the stirring rod.

[0013] Among them, the circulation component includes a support frame, a lifting unit, a screw and a friction ring. The support frame is slidably set on the cover body, the stirring rod passes through the support frame, the output end of the lifting unit is connected to the support frame, the screw is rotatably set on the support frame, the stirring rod passes through the screw, the friction ring is fixed at the bottom of the screw, and a friction plate is set on the stirring rod corresponding to the friction ring.

[0014] Wherein, the circulation component further includes a return spring, and the return spring is arranged between the lifting unit and the support frame.

[0015] Wherein, the support frame includes a frame body, a support plate and an extension rod, the support plate is connected to the output end of the lifting unit, the extension rod is connected to the support plate, and the frame body is fixed on the extension rod.

[0016] Among them, the bubble monitoring component includes a photographing unit, an image processing unit, a bubble detection unit, a distribution unit and a drive control unit. The photographing unit is arranged on one side of the observation window and is used to obtain a slurry image; the image processing unit is used to preprocess the slurry image; the bubble detection unit is used to identify and classify the slurry image using a convolutional neural network model to obtain a bubble classification result; the drive control unit is used to control the speed of the stirring motor based on the bubble classification result.

[0017] A method and device for preparing a water-based long-term anti-rust coating of the present invention prepare one or more types of water-based resins as basic materials. These water-based resins may include but are not limited to water-based epoxy resins, water-based acrylic resins and water-based polyurethane resins. Selecting the right type of resin and its ratio is crucial to ensuring the performance of the final product. These resins can not only provide good adhesion, but also enhance the weather resistance and mechanical strength of the coating. After the water-based resin solution is prepared, the next step is to add anti-rust pigments thereto. These anti-rust pigments can be zinc phosphate, aluminum tripolyphosphate, molybdate or iron titanium black, etc., which can effectively inhibit the corrosion reaction on the metal surface and improve the anti-rust effect of the coating. According to the specific application requirements and environmental conditions, one or more anti-rust pigments can be selected for use in combination.

[0018] In order to ensure the good dispersion of the anti-rust pigment in the resin solution, it is necessary to add an appropriate amount of dispersant and wetting agent. Dispersants help prevent the agglomeration of pigment particles, while wetting agents can improve the wetting ability of pigments to the substrate, making the entire system more stable and also conducive to improving the quality of the coating. This process requires adequate mixing through proper stirring. After the above components are evenly mixed, auxiliary materials such as film-forming aids, defoamers, leveling agents and preservatives need to be added to them, and further stirred in a dedicated preparation device. Film-forming aids help form a continuous and dense coating; defoamers can reduce bubbles generated during stirring; leveling agents help eliminate defects on the surface of the coating, making it smoother and flatter; the role of preservatives is to extend the storage life of the coating and prevent product deterioration caused by microbial growth.

[0019] The last step is to filter the mixed water-based anti-rust paint to remove possible undissolved particles or other impurities to ensure the purity and construction performance of the paint. It can be widely used in the surface protection of various metal products, especially those structural parts in harsh environments, such as bridges, ships, pipelines, etc., to extend their service life and maintain beautiful appearance. The water-based long-term anti-rust paint carefully formulated through the above steps is not only environmentally friendly and pollution-free, but also has excellent anti-rust ability and excellent physical and chemical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1The present invention is a flow chart of a method for preparing a water-based long-term anti-rust coating.

[0022] Figure 2 It is a structural diagram of a preparation device of a water-based long-term anti-rust coating of the present invention.

[0023] Figure 3 It is the right structural diagram of a preparation device of a water-based long-term anti-rust coating of the present invention.

[0024] Figure 4 It is a left structural diagram of a preparation device of a water-based long-term anti-rust coating of the present invention.

[0025] Figure 5 It is a cross-sectional structural diagram of a preparation device of a water-based long-acting anti-rust coating of the present invention.

[0026] Figure 6 yes Figure 5 A partial enlargement of detail A.

[0027] Figure 7 It is a structural diagram of the bubble monitoring component of the present invention.

[0028] Base 101, support frame 102, stirring shell 103, cover plate 104, stirring assembly 105, slurry circulation assembly 106, bubble monitoring assembly 107, cover plate body 108, control cylinder 109, sealing ring 110, observation window 111, baffle 112, stirring motor 113, stirring rod 114, stirring blade 115, support frame 116, lifting unit 117, screw 118, friction ring 119, return spring 120, frame 121, support plate 122, extension rod 123, camera unit 124, image processing unit 125, bubble detection unit 126, distribution unit 127, drive control unit 128, baffle body 129, gear 130, first rack 131, second rack 132, friction plate 133. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0031] First embodiment

[0032] See also Figure 1 The present invention provides a method for preparing a water-based long-term anti-rust coating, comprising:

[0033] S101 prepares an aqueous resin solution, wherein the aqueous resin solution includes one or more of an aqueous epoxy resin, an aqueous acrylic resin, and an aqueous polyurethane resin;

[0034] The water-based resin solution can use one of the water-based epoxy resin, water-based acrylic resin or water-based polyurethane resin alone, or they can be mixed in a certain proportion to obtain better performance. For example, water-based epoxy resin is usually modified by chemical reaction of epoxy resin and water-based curing agent (such as amine curing agent); water-based acrylic resin is prepared by emulsion polymerization of acrylate monomer in water; and water-based polyurethane resin is prepared by reaction of isocyanate and polyol in aqueous medium.

[0035] S102 adding an anti-rust pigment to the aqueous resin solution, wherein the anti-rust pigment comprises one or more of zinc phosphate, aluminum tripolyphosphate, molybdate and iron titanium black;

[0036] Next, add anti-rust pigments to the above aqueous resin solution. Common anti-rust pigments include zinc phosphate, aluminum tripolyphosphate, molybdate, and iron titanium black. These pigments can react chemically with the metal surface to form a protective film, thereby preventing oxygen and moisture from directly contacting the metal surface, thereby achieving the purpose of rust prevention. For example, zinc phosphate (Zn3(PO4)2·4H2O) is a common anti-rust pigment that can react with iron ions on the metal surface to form an insoluble phosphate layer, providing a good anti-rust effect.

[0037] S103 add dispersant and wetting agent, mix evenly, and form anti-rust slurry;

[0038] In order to ensure good dispersion of anti-rust pigments in the resin solution and the rheological properties of the coating, it is necessary to add appropriate amounts of dispersants and wetting agents. Dispersants help prevent pigment particles from agglomerating and ensure the stability and coating performance of the coating; wetting agents can improve the wetting ability of the coating on the substrate and promote the formation of the coating. Common dispersants include polycarboxylates, polyurethanes, etc.; wetting agents include siloxanes, fatty acid esters, etc.

[0039] S104: adding the anti-rust slurry, the film-forming aid, the defoamer, the leveling agent and the preservative into the preparation device for mixing, stirring evenly, and forming a water-based anti-rust coating;

[0040] Mix the anti-rust slurry with additives such as film-forming aids, defoamers, leveling agents and preservatives, and stir thoroughly until a uniform water-based anti-rust coating is formed. Film-forming aids help improve the drying speed and hardness of the coating, such as ethylene glycol butyl ether, propylene glycol methyl ether acetate, etc.; defoamers are used to eliminate bubbles generated during the stirring process of the coating, such as silicone oil, polyether modified silicone oil, etc.; leveling agents help the coating form a flat surface after application, such as acrylic leveling agents; preservatives are used to prevent the growth of microorganisms during the storage of the coating, such as isothiazolinone preservatives.

[0041] S105 filters the water-based anti-rust coating to remove impurities, thereby obtaining a final water-based long-term anti-rust coating.

[0042] The last step is to filter the prepared water-based anti-rust paint through a filter to remove possible large particle impurities and ensure the quality of the paint. This step is crucial to ensure the final application effect of the paint. Filters with different pore sizes can be used to select the appropriate filtration accuracy according to the specific requirements of the paint.

[0043] Through the above steps, a water-based long-lasting anti-rust coating with excellent performance, environmental protection and safety can be obtained, which is suitable for anti-rust treatment of various metal surfaces.

[0044] Second embodiment

[0045] See also Figure 2 to Figure 7The present invention also provides a preparation device for a water-based long-term anti-rust coating, comprising a base 101, a support frame 102, a stirring shell 103, a cover plate 104, a stirring component 105, a slurry circulation component 106 and a bubble monitoring component 107, wherein the support frame 102 is fixedly connected to the base 101 and is located on one side of the support frame 102, the stirring shell 103 is fixed on the support frame 102, the cover plate 104 is slidably arranged on the stirring shell 103, the stirring component 105 is arranged on the cover plate 104, the slurry circulation component 106 is arranged on one side of the stirring component 105, and is used to drive the slurry in the stirring shell 103 to circulate up and down, and the bubble monitoring component 107 is used to take pictures to detect bubbles when the slurry circulates and control the rotation speed of the stirring component 105.

[0046] In this embodiment, the base 101 is the basic part of the entire device, providing stable support for other components, and the support frame 102 is used to fix the stirring shell 103 and other related components to ensure the smooth operation of the entire system.

[0047] The support frame 102 is fixedly connected to the base 101 by welding or other means, and is located on one side of the base 101. The height and angle can be adjusted according to actual needs to adapt to stirring shells 103 of different sizes. The stirring shell 103 is the main place for mixing the paint, and a specific structure is designed inside to promote the flow and mixing of materials. The stirring shell 103 is usually cylindrical and made of corrosion-resistant materials, such as stainless steel, to adapt to the chemical properties of water-based paint. The inner wall of the shell may be provided with a guide plate or a spiral blade to enhance the mixing effect.

[0048] The cover plate 104 is installed on the top of the stirring shell 103 and can be slid open to facilitate feeding and cleaning.

[0049] The stirring assembly 105 is responsible for driving the stirring shaft to rotate so that the coating material is evenly mixed in the stirring shell 103 .

[0050] The slurry circulation assembly 106 is used to drive the slurry in the stirring shell 103 to circulate up and down, further improving the mixing efficiency, and at the same time, it can drive the bubbles that may exist in the slurry to float to the surface for detection.

[0051] The bubble monitoring component 107 is used to detect the bubble situation in the slurry in real time, and automatically adjust the rotation speed of the stirring component 105 according to the detection results to reduce the generation of bubbles. The bubble monitoring component 107 includes a camera, an image processing unit 125 and a control system. The camera is installed inside or outside the stirring shell 103 and takes a real-time image of the slurry through a transparent window. The image processing unit 125 analyzes the captured image and detects the number and size of bubbles. The control system adjusts the speed of the motor according to the detection results to optimize the stirring process and reduce the generation of bubbles.

[0052] Through this preparation device, the stirring speed can be adjusted more conveniently, thereby minimizing the generation of bubbles during the stirring process, thereby improving the production efficiency and quality of water-based long-lasting anti-rust coatings and meeting the high standards required for industrial applications.

[0053] The cover plate 104 includes a cover plate body 108, a control cylinder 109, a sealing ring 110, an observation window 111 and a baffle 112. The cover plate body 108 is slidably arranged on the top of the stirring shell 103, the output end of the control cylinder 109 is connected to the cover plate body 108, the sealing ring 110 is arranged between the cover plate body 108 and the stirring shell 103, the observation window 111 is arranged at the bottom of the cover plate body 108, and the baffle 112 is slidably arranged on one side of the observation window 111.

[0054] In this embodiment, the cover body 108 is the main part of the cover 104, which is used to cover the top of the mixing shell 103 to prevent material overflow and external pollutants from entering. It is usually made of high-strength, corrosion-resistant materials, such as stainless steel or engineering plastics.

[0055] The control cylinder 109 is used to drive the cover body 108 to open and close, and realize automatic operation. The control cylinder 109 is fixed on the support frame 102, and its output end is connected to the cover body 108 through a connecting rod. When the cylinder is extended and retracted, the connecting rod drives the cover body 108 to move along the slide slot to realize the opening and closing of the cover 104. The control cylinder 109 can be remotely controlled by the control system to improve the convenience and safety of operation.

[0056] The sealing ring 110 is installed between the cover body 108 and the stirring shell 103 to ensure the sealing inside the stirring shell 103 and prevent material leakage and external pollutants from entering. The sealing ring 110 is usually made of high temperature resistant and corrosion resistant rubber material and is installed at the lower edge of the cover body 108.

[0057] The observation window 111 is used to monitor the mixing process inside the stirring shell 103 in real time, so that the operator can understand the mixing state in time. A sealing strip is provided on the edge of the observation window 111 to ensure the sealing performance with the cover body 108.

[0058] The baffle 112 is used to shield the observation window 111 to prevent the material from splashing onto the observation window 111 during the mixing process, thereby affecting the sight. The baffle 112 is slidably arranged on one side of the observation window 111, and can be slid manually or electrically.

[0059] The stirring assembly 105 includes a stirring motor 113, a stirring rod 114 and a stirring blade 115. The stirring rod 114 is rotatably arranged on the cover body 108 and is located in the stirring shell 103. The output end of the stirring motor 113 is connected to the stirring rod 114, and the stirring blade 115 is fixed on the stirring rod 114.

[0060] The stirring motor 113 is the power source of the stirring assembly 105 and provides the driving force required for stirring. The stirring motor 113 is usually a high-efficiency, low-noise DC or AC motor and is installed above the cover body 108.

[0061] The stirring rod 114 is used to transmit the rotational motion of the stirring motor 113, driving the stirring blades 115 to stir the materials in the stirring shell 103. The stirring rod 114 is usually made of stainless steel or high-strength alloy steel to ensure its strength and rigidity under high-speed rotation.

[0062] The stirring blade 115 is mounted on the stirring rod 114 and directly acts on the material to achieve uniform mixing. The stirring blade 115 is usually made of stainless steel or corrosion-resistant plastic, and the shape and number are designed according to the characteristics of the coating and the mixing requirements.

[0063] The circulation component includes a support frame 116, a lifting unit 117, a screw 118 and a friction ring 119. The support frame 116 is slidably set on the cover body 108, the stirring rod 114 passes through the support frame 116, the output end of the lifting unit 117 is connected to the support frame 116, the screw 118 is rotatably set on the support frame 116, the stirring rod 114 passes through the screw 118, the friction ring 119 is fixed to the bottom of the screw 118, and a friction plate 133 is set on the stirring rod 114 corresponding to the friction ring 119.

[0064] The support frame 116 is used to fix and support the stirring rod 114, ensuring that it can move up and down smoothly during the stirring process to achieve the circulation flow of the slurry. The support frame 116 is slidably arranged on the cover body 108 and can move along the slide rail on the cover body 108. The support frame 116 is mainly composed of a frame body 121, a support plate 122 and an extension rod 123.

[0065] The lifting unit 117 is used to drive the support frame 116 to move up and down, thereby driving the screw 118 to move up and down along the stirring rod 114. During the downward movement of the screw 118, the friction ring 119 can contact the friction plate 133 provided on the stirring rod 114, so that the friction ring 119 can rotate along with the friction plate 133 under the action of friction force, so that the outer side of the screw 118 can drive the slurry below to lift upward with the support of the support frame 116, thereby forming an upward liquid flow, and then an up and down circulating flow can be formed in the above-mentioned stirring shell 103, so that bubbles are easier to discharge and display.

[0066] The circulation assembly further includes a return spring 120 , and the return spring 120 is disposed between the lifting unit 117 and the support frame 116 .

[0067] The return spring 120 is disposed between the lifting unit 117 and the support frame 116 , and is used to help the support frame 116 to return quickly when the lifting unit 117 is retracted, thereby ensuring that the stirring rod 114 can quickly return to its initial position.

[0068] The support frame 116 includes a frame body 121 , a support plate 122 and an extension rod 123 . The support plate 122 is connected to the output end of the lifting unit 117 . The extension rod 123 is connected to the support plate 122 . The frame body 121 is fixed on the extension rod 123 .

[0069] The frame 121 is the main part of the support frame 116, and is usually made of high-strength, corrosion-resistant materials, such as stainless steel or aluminum alloy. The support plate 122 is connected to the output end of the lifting unit 117, and the driving force of the lifting unit 117 is transmitted to the support frame 116 through the support plate 122. The support plate 122 is usually made of the same material as the frame 121 to ensure its strength and corrosion resistance. The extension rod 123 is connected to the support plate 122 and is used to fix the frame 121. The design of the extension rod 123 should ensure its stability and flexibility when the support frame 116 moves. At the same time, the slurry can easily flow out from the gap of the extension rod 123 to form a circulating flow.

[0070] The bubble monitoring component 107 includes a photographing unit 124, an image processing unit 125, a bubble detection unit 126, a distribution unit 127 and a drive control unit 128. The photographing unit 124 is arranged on one side of the observation window 111, and is used to obtain a slurry image; the image processing unit 125 is used to pre-process the slurry image; the bubble detection unit 126 is used to identify and classify the slurry image using a convolutional neural network model to obtain a bubble classification result; the drive control unit 128 is used to control the speed of the stirring motor 113 based on the bubble classification result.

[0071] The camera unit 124 usually includes a high-resolution camera and a light source. The camera is installed on one side of the observation window 111, and the slurry image in the stirring shell 103 is captured through the transparent observation window 111. The light source is used to illuminate the inside of the stirring shell 103 to ensure that the captured image is clear and visible. The camera and the light source can be fixed to the cover body 108 by a bracket to ensure their stability and accuracy. The camera usually adopts an industrial-grade high-resolution camera, such as a CMOS camera with a resolution of 1080p or higher. The light source can be selected as an LED lamp to provide uniform lighting.

[0072] The image processing unit 125 is used to pre-process the slurry image acquired by the camera unit 124 for subsequent bubble detection. The image processing unit 125 generally includes an image acquisition card, image processing software, and a computer. The image acquisition card transmits the image data captured by the camera to the computer, and the image processing software pre-processes the image, such as denoising, contrast enhancement, etc.

[0073] The bubble detection unit 126 is used to identify and classify the pre-processed slurry image using a convolutional neural network (CNN) model to obtain a bubble classification result. The bubble detection unit 126 mainly includes a convolutional neural network model and computing resources. The convolutional neural network model is usually trained using a large number of annotated slurry images during the training phase to identify and classify bubbles. The computing resources can be a high-performance GPU or a dedicated AI accelerator to ensure fast reasoning of the model. The convolutional neural network model can adopt a classic CNN architecture, such as ResNet, VGG or Inception. The training data set should contain slurry images under various conditions to improve the generalization ability of the model.

[0074] The distribution unit 127 is used to transmit the classification result of the bubble detection unit 126 to the drive control unit 128 to ensure accurate transmission of information. The distribution unit 127 generally includes a communication module and a data interface. The communication module can use wired or wireless communication methods, such as Ethernet, Wi-Fi or RS-485. The data interface is used to connect the bubble detection unit 126 and the drive control unit 128 to ensure reliable data transmission.

[0075] The drive control unit 128 is used to control the rotation speed of the stirring motor 113 based on the bubble classification result to reduce the generation of bubbles. The drive control unit 128 generally includes a controller, a driver and a motor. The controller receives the classification result of the bubble detection unit 126, adjusts the output of the driver according to a preset control strategy, and then controls the rotation speed of the stirring motor 113. The controller can adopt a PLC (programmable logic controller) or an embedded system. The controller should have high-performance computing power and real-time control capabilities to ensure accurate control of the stirring motor 113. The driver should support multiple motor types, such as DC motors, stepper motors or servo motors, to meet different stirring requirements.

[0076] The baffle 112 includes a baffle body 129, a gear 130 and a first rack 131. The baffle body 129 is slidably arranged on one side of the observation window 111. The first rack 131 is fixed on the baffle body 129. The gear 130 is meshed with the first rack 131. A second rack 132 is arranged on the extension rod 123, and the second rack 132 is meshed with the gear 130.

[0077] The baffle body 129 is used to shield the observation window 111 to prevent the material from splashing onto the observation window 111 during the mixing process and affecting the operator's line of sight. The baffle body 129 is usually made of the same or similar material as the cover body 108, such as stainless steel or engineering plastics, to ensure its corrosion resistance and strength. The baffle body 129 is designed to be rectangular or long, with a width slightly smaller than the width of the observation window 111 and a height sufficient to completely shield the observation window 111. A slide groove or slide rail is provided on one side of the baffle body 129 so that it can slide on one side of the observation window 111.

[0078] The gear 130 is used to convert the sliding motion of the baffle body 129 into a rotational motion to achieve precise control of the baffle 112. The gear 130 is usually made of a high-strength, wear-resistant material, such as stainless steel or hard alloy. The gear 130 is installed on one side of the baffle body 129 and meshes with the first rack 131. The diameter and module of the gear 130 should be selected according to actual needs to ensure that it is stable and free of jamming during the sliding process.

[0079] Specifically, during the downward movement of the extension rod 123, the second rack 132 can drive the gear 130 to rotate, so that the gear 130 can drive the first rack 131 and the baffle body 129 to open automatically, so that the observation window 111 can be automatically opened after the screw 118 moves into place, thereby making observation more convenient.

[0080] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A method for preparing a water-based long-lasting anti-rust coating, It is characterized in that The method comprises: preparing an aqueous resin solution, wherein the aqueous resin solution comprises one or more of an aqueous epoxy resin, an aqueous acrylic resin and an aqueous polyurethane resin; Adding anti-rust pigment into the aqueous resin solution, the anti-rust pigment comprises one or more of zinc phosphate, aluminum tripolyphosphate, molybdate and iron titanium black; Add dispersant and wetting agent, mix well to form anti-rust slurry; Add the anti-rust slurry, film-forming aid, defoamer, leveling agent and preservative into the preparation device, mix and stir evenly to form a water-based anti-rust coating; The water-based anti-rust coating is filtered to remove impurities, thereby obtaining the final water-based long-acting anti-rust coating.

2. The preparation device of a water-based long-term anti-rust coating according to claim 1 is applied to the preparation method of a water-based long-term anti-rust coating according to claim 1, characterized in that: It includes a base, a support frame, a stirring shell, a cover plate, a stirring component, a slurry circulation component and a bubble monitoring component. The support frame is fixedly connected to the base and is located on one side of the support frame. The stirring shell is fixed on the support frame. The cover plate is slidably arranged on the stirring shell. The stirring component is arranged on the cover plate. The slurry circulation component is arranged on one side of the stirring component and is used to drive the slurry in the stirring shell to circulate up and down. The bubble monitoring component is used to take pictures to detect bubbles when the slurry circulates and control the rotation speed of the stirring component.

3. The preparation device of a water-based long-term anti-rust coating according to claim 2, characterized in that: The cover plate includes a cover plate body, a control cylinder, a sealing ring, an observation window and a baffle. The cover plate body is slidably arranged on the top of the stirring shell, the output end of the control cylinder is connected to the cover plate body, the sealing ring is arranged between the cover plate body and the stirring shell, the observation window is arranged at the bottom of the cover plate body, and the baffle is slidably arranged on one side of the observation window.

4. The preparation device of a water-based long-term anti-rust coating according to claim 3, characterized in that: The stirring assembly comprises a stirring motor, a stirring rod and a stirring blade. The stirring rod is rotatably arranged on the cover body and is located in the stirring shell. The output end of the stirring motor is connected to the stirring rod, and the stirring blade is fixed on the stirring rod.

5. The preparation device of a water-based long-term anti-rust coating according to claim 4, characterized in that: The circulation component includes a support frame, a lifting unit, a screw and a friction ring. The support frame is slidably arranged on the cover body, the stirring rod passes through the support frame, the output end of the lifting unit is connected to the support frame, the screw is rotatably arranged on the support frame, the stirring rod passes through the screw, the friction ring is fixed to the bottom of the screw, and a friction plate is arranged on the stirring rod corresponding to the friction ring.

6. The preparation device of a water-based long-term anti-rust coating according to claim 5, characterized in that: The circulation assembly further includes a return spring, and the return spring is arranged between the lifting unit and the support frame.

7. The preparation device of a water-based long-term anti-rust coating according to claim 6, characterized in that: The support frame comprises a frame body, a support plate and an extension rod, the support plate is connected to the output end of the lifting unit, the extension rod is connected to the support plate, and the frame body is fixed on the extension rod.

8. The preparation device of a water-based long-term anti-rust coating according to claim 7, characterized in that: The bubble monitoring component includes a photographing unit, an image processing unit, a bubble detection unit, a distribution unit and a drive control unit. The photographing unit is arranged on one side of the observation window and is used to obtain a slurry image; the image processing unit is used to pre-process the slurry image; the bubble detection unit is used to identify and classify the slurry image using a convolutional neural network model to obtain a bubble classification result; and the drive control unit is used to control the speed of the stirring motor based on the bubble classification result.

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