608 results about "Spray coating" patented technology

The invention provides a method for detecting the thickness increment of a sprayed coating, and relates to the technical field of industrial spraying. The method comprises the following steps: acquiring a depth image of a current sprayed coating, and determining first point cloud data of the current sprayed coating according to the depth image; registering the first point cloud data with second point cloud data, wherein the second point cloud data is depth point cloud data of an initial spraying coating corresponding to the current spraying coating; determining the offset of matching points in the first point cloud data and the second point cloud data according to a registration result; and determining the thickness increment of the current sprayed coating according to the offset of the matching point. According to the invention, the thickness increment of the sprayed coating can be accurately and rapidly detected.

The invention discloses film laminating equipment, which comprises an unwinding mechanism, a film laminating mechanism, a film laminating mechanism and a film laminating mechanism, the gluing mechanism is used for uniformly coating glue on the surface of the spread iron plate of the iron roll in a roller coating or spray coating or blade coating mode; the heating box is arranged at an outlet of the gluing mechanism, and the iron plate directly enters the heating box after being glued; and the film covering mechanism is arranged at the outlet end of the heating box and is provided with an unwinding group, a film tearing group, a buffer roller group, a preheating pressing group, a cooling group and a winding group. The film laminating mechanism is tightly arranged at the outlet end of the heating box, rapid bearing of the iron plate is achieved through the buffer roller set, the iron plate conveying distance is greatly shortened, the iron plate enters the film laminating mechanism, the viscosity of an adhesive layer on the iron plate is activated through waste heat, power consumption of a preheating pressing set of the film laminating machine is reduced, and the preheating time is shortened; the gluing force of the iron plate and the colored film is improved, the production cost is greatly reduced, and efficient and energy-saving production is achieved.

The application discloses a dynamic roller pressing forming device for a gradient-pore diaphragm for a silicon-based negative electrode, comprising a modular coating unit, a multi-shaft roller pressing machine group and a partitioned annealing cavity arranged in sequence, the modular coating unit comprises a slit coating mechanism, a spray coating mechanism and a micro-gravure coating mechanism arranged in sequence, the multi-shaft roller pressing machine group comprises a main pressing roller and a supporting roller matched with the main pressing roller, and a dynamic pressure feedback system is arranged on the main pressing roller; and the application further discloses a method for preparing a gradient-pore high-molecular diaphragm by using the forming device. The device is provided with the main pressing roller of the multi-shaft roller pressing machine group and the partitioned annealing cavity, and the dynamic pressure feedback system is arranged on the main pressing roller, so that the accurate matching between the pore structure and the expansion behavior of the silicon-based negative electrode is realized, the stress buffering capacity and the ion transmission efficiency of the diaphragm are improved, and the device is suitable for the technical field of lithium ion battery materials.

The invention discloses a spraying device for intelligent sofa production, and belongs to the technical field of sofa production. Comprising a control table, the control table is rotationally connected with a rotating frame, the control table is provided with a material spraying module used for spraying coating, the control table is provided with a plurality of clamping bases, and the rotating frame is slidably and rotationally connected with clamping jacking pieces with the same number as the clamping bases; the central axis of the clamping base coincides with the central axis of the corresponding clamping top piece, and shielding pieces are arranged on the clamping base and the clamping top piece. The two shielding pieces are tightly attached to the two end faces of the sofa leg to form effective physical isolation, when the spraying module conducts spraying operation, the shielding pieces block the end faces of the sofa leg, so that paint cannot be attached to the end face area of the sofa leg, the bonding reliability of the connecting portion of the sofa leg and the main body can be remarkably improved, and the service life of the sofa leg is prolonged. And assembly strength and product durability are guaranteed.

The utility model provides high-stability clamping spraying equipment with an adjusting function, and belongs to the technical field of spraying equipment. Comprising a workbench, a driving assembly is arranged on the inner wall of the workbench, a clamping assembly is fixedly connected to the movable end of the driving assembly, a spraying device used for spraying operation is arranged at the top of the workbench, the spraying device comprises a transmission assembly, and an electric push rod is fixedly connected to the movable end of the transmission assembly; an L-shaped plate is fixedly connected to the telescopic end of the electric push rod, an elastic telescopic plate is fixedly connected to the bottom of the L-shaped plate, a spray head is fixedly connected to the telescopic end of the elastic telescopic plate, and a paint inlet pipe is fixedly connected to the circumferential face of the spray head. The arc-shaped plate spraying device solves the problems that when an arc-shaped plate is sprayed, the radian of the arc-shaped plate enables the spraying distance to be large and small, due to the fact that the distance changes greatly, the sprayed coating can be too much or too little, the thickness of a coating is not uniform, and the final effect is affected.

Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier. For food containers having deep sidewalls, a spray coating system includes a first nozzle for applying a full cone spray pattern to the bottom surface of the container, and a second nozzle for applying a hollow cone spray pattern to the inside surfaces of the side walls.

The invention discloses a furniture spraying quality detection method, which comprises the following steps of: 1, acquiring a surface coating image of furniture on a building material by using an industrial camera, and preprocessing the image; 2, carrying out feature extraction on the preprocessed collected image, and obtaining a corresponding building material surface feature map according to the extracted features; and 3, combining the results of the coating areas obtained in the step 1 with different labels to serve as the input of a detection model, and evaluating the furniture spraying quality according to the output result of the network model. According to the invention, accurate detection of the furniture spraying quality on the surface of the building material on an assembly line can be accelerated, and the building material can be better produced and processed according to the spraying quality.

The invention discloses an HVOF spraying coating and a preparation method and application thereof, and belongs to the technical field of high-end equipment manufacturing, and the preparation method of the HVOF spraying coating comprises the following steps that hypersonic flame spraying is adopted, and a transition layer and a working layer are sequentially sprayed on the surface of a base body; the transition layer is made of NiCr (nickel chromium)-CoCrFeNiMo (cobalt chromium) or NiCr (nickel chromium); and the working layer is at least one of the following components: 10 < CoCr > FeNi < 18 > NiCr < 72 > Cr3 < C2 >, 20 < CoCr > FeNi < 16 > NiCr < 64 > Cr3 < C2 >, 75 < NiCr > < 25 > Cr3 < C2 >, 25 < NiCr > < 75 > Cr3 < C2 > and 50 < NiCr > < 50 > Cr3 < C2 >. According to the HVOF spraying coating prepared through the method, collaborative optimization of high-temperature wear resistance and corrosion resistance is achieved, and an effective path is provided for design of a high-performance protective coating under the complex working condition.

The invention discloses a method for detecting the spraying quality of an aluminum alloy hub, which relates to the technical field of nondestructive testing, and comprises the following steps: detecting parameters based on a metamaterial microwave resonant cavity, detecting a three-dimensional model on the surface of the aluminum alloy hub, monitoring the resonant frequency offset in real time, calculating a local dielectric constant, and determining the spraying quality of the aluminum alloy hub through spatial interpolation analysis and abnormal region identification. Generating a dielectric abnormal distribution thermodynamic diagram; performing confidence grading on the defect verification result by adopting a confidence evaluation method to obtain a defect confidence level; on the basis of the defect confidence level, the detection parameters of the quantum dot fluorescence-conductivity dual-mode probe are adjusted, the dielectric abnormal distribution thermodynamic diagram is rechecked and verified, and an aluminum alloy hub spraying quality detection report is obtained; according to the invention, through micro-area detection and confidence level grading verification of the quantum dot fluorescence-conductivity dual-mode probe, the effects of accurately judging the composite defect and optimizing the detection precision are achieved.

The invention discloses a method and system for controlling the film thickness uniformity of a spray coating machine, and belongs to the technical field of optical lens spray coating, the system comprises an initial track acquisition module, a growth rate acquisition module, a difference adjustment calculation module and a parameter adjustment correction module, and the system obtains a thermal characteristic distribution diagram of a substrate to be coated; obtaining an initial movement track speed operation scheme of the robot arm according to the thermal characteristic distribution diagram, collecting and recording film thickness growth rate data of each film thickness monitoring point, comparing the film thickness growth rate data of each film thickness monitoring point recorded in real time with a target growth rate of a substrate to be coated, and calculating to obtain difference data; according to the method, the thermal characteristics of the substrate and the real-time film thickness growth rate data are combined, dynamic adjustment of the spraying track speed is achieved, and the film thickness uniformity is effectively improved.

The piezoelectric type spray valve comprises an upper valve body, a vibration part, a lower valve body, a fluid supply part and a gas supply part, an impact groove and an atomization gas channel formed in the periphery of the impact groove are formed in the lower valve body, the gas supply part comprises the atomization gas channel, the atomization gas channel comprises a through channel, and the through channel is communicated with the impact groove. The through channels are uniformly distributed on the periphery of the axis of the middle section of the impact groove, and each through channel extends in the direction obliquely downward or perpendicular to the axis of the middle section; a large amount of heat can be generated when the firing pin collides with the bottom of the middle section of the impacting groove at high frequency, the gas supply part is used for directly reducing the temperature of the middle section of the impacting groove and indirectly reducing the temperature of the firing pin when atomized gas flow passes through the second gas channel section, the piezoelectric type spray valve is suitable for materials sensitive to temperature, and the service life of the piezoelectric type spray valve can be prolonged.

The invention relates to the technical field of building wall surface spraying equipment, and particularly discloses house building wall surface spraying equipment which comprises a booster pump and a spraying gun. The device further comprises a fixed extension rod. A hose section is arranged in the middle of the movable extension rod; a limiting mechanism; the guide mechanism is positioned on the outer side of the movable extension rod; according to the house building wall surface spraying equipment, when an arc-shaped wall surface is met, the guide mechanism adjusts the inclination angle of the end part of the movable extension rod according to the radian of a spraying surface, so that a nozzle is approximately located in the direction perpendicular to the tangent line of a spraying point, the operation difficulty of a worker is reduced, and along with the increase of the inclination amplitude of the movable extension rod, the spraying is more uniform; the expansion mechanism synchronously adjusts the radian of the hose section, so that the radian of the hose section is matched with the inclination angle of the nozzle of the movable extension rod, the situation that the sprayed coating impacts the inner wall of the hose section due to the small bending angle of the hose section is avoided, the hose section is prevented from being broken or blocked, and the wall spraying smoothness is guaranteed.

The invention discloses a low-cost nano porous silicon-carbon composite material based on a solid waste silicon source as well as a preparation method and application thereof. The preparation method comprises the following steps: taking a solid raw material containing silicon dioxide as a silicon source; carrying out wet ball milling on the pretreated raw materials; mixing the ball-milled material with magnesium powder, aluminum chloride and lithium chloride; carrying out heating reduction reaction on the mixed material; sequentially performing hydrochloric acid pickling and hydrofluoric acid pickling on the reduction product, and then washing to be neutral; mixing the washed silicon particles with a carbon precursor containing nitrogen and sulfur, coating by adopting a spray coating method, and then carrying out carbonization treatment; the carbon precursor containing nitrogen and sulfur is composed of asphalt and thiourea; the carbonization temperature is 750-850 DEG C, the carbonization time is 1-2 hours, and the heating procedure comprises a desolventizing section, an asphalt decomposition section and a carbonization section. The preparation method is low in raw material cost, low in energy consumption, environment-friendly and excellent in product comprehensive performance, and has wide application prospects in the fields of power batteries, energy storage, catalysis and the like.

The invention relates to a special-shaped pipe surface treatment technology, and provides an automatic electrostatic spraying parameter intelligent regulation and control method for solving the problem that the thickness of an electrostatic spraying coating of a special-shaped pipe is not uniform. Firstly, a special pipe three-dimensional geometric model is constructed by means of three-dimensional laser scanning, and an electrostatic field is simulated to obtain electric field distribution data. And then utilizing an improved genetic algorithm to optimize spraying parameters including spray gun voltage, current and the like. During spraying, parameters are monitored in real time through a sensor and are automatically adjusted after being compared with optimized values, and accurate regulation and control are achieved. According to the method, the accurate spraying process physical model and the coating deposition model are constructed, the uniformity and quality of the coating are effectively improved, material waste is reduced, the production efficiency is improved, an efficient and reliable solution is provided for special pipe surface treatment, and the method has good application prospects in the related industrial production field.

The present invention provides a TPU printable substrate film, comprising a first release film layer, a substrate layer, an installation adhesive layer and a second release film layer sequentially laminated; the first release film layer is provided on the substrate layer, the installation adhesive layer is provided underneath the substrate layer, and the second release film layer is provided underneath the installation adhesive layer; wherein a thickness of the first release film layer is 12˜188 μm; a thickness of the substrate layer is 2˜188 μm; a thickness of the installation adhesive layer is 20˜100 μm and a thickness of the second release film layer is 12˜188 μm. The present invention provides a TPU printable substrate film, configured for production and manufacturing of the printable decal films, and the TPU printable substrate films made by spraying coating have very good extension and anti-aging performance.

The invention discloses a high-insulativity coating treatment method of a metal soft magnetic composite material, which belongs to the technical field of metal soft magnetic materials, and comprises the following steps: firstly, performing vacuum dehydration treatment on metal soft magnetic powder, and controlling the moisture content to be not higher than 0.1%; carrying out ultrasonic dispersion treatment on the boron nitride nanosheets to form a suspension, and modifying the magnesium borate nanowires and a silane coupling agent for later use; preparing an inorganic coating solution and an organic coating solution; activating the powder in the fluidized bed by adopting radio frequency plasma of argon-oxygen mixed gas; enabling the activated powder to enter a three-fluid nozzle fluidized bed reactor, and implementing synchronous spray coating in two stages: in the first stage, spraying inorganic coating liquid and applying pulse plasma to form a composite bottom layer; in the second stage, spraying organic coating liquid and carrying out ultraviolet precuring to form a resin layer; and the coated powder is treated by a stepped thermocuring procedure to obtain a finished product. The technical problem of how to improve the insulation coating performance of the metal soft magnetic composite material is solved.

The utility model provides an automatic spraying device. The automatic spraying device comprises a robot, a spraying gun, a coating assembly, a cleaning assembly and an atomizing assembly. The robot is installed on the base plane, and the end, away from the base plane, of the robot is arranged to be a free end capable of moving. The spray gun is fixed to the free end and can move along with the free end. The coating assembly comprises a coating pipeline and a coating valve, the cleaning assembly comprises a cleaning pipeline and a cleaning valve, the spray gun is provided with a spraying connector and an atomization connector, and the coating pipeline and the cleaning pipeline are communicated with the spray gun through the spraying connector. The atomization assembly communicates with the atomization connector so as to provide atomized gas for the spray gun. The paint valve and the cleaning valve are communicated with the paint pipeline and the cleaning pipeline respectively, and one of the paint valve and the cleaning valve is selected to be conducted at the same time, so that the spray gun can spray paint or enable a cleaning agent to enter the spray gun to clean the spray gun, and the accuracy and the spraying effect of the spray gun during next spraying are guaranteed.

The utility model discloses a PC (Poly Carbonate) board surface hardening and spraying device, relates to the technical field of PC board spraying, and solves the technical problems that a PC board surface hardening and coating mode used in the prior art has certain limitation and is difficult to adapt to multi-scale products. Nozzles for spraying paint are arranged on the surfaces of the dense supporting rods, the moving tracks of the nozzles can only be the same as the track of the telescopic pipe through the telescopic pipe and the driving column between the supporting rods, after the supporting rods are attached to the PC board, the supporting rods can move under the pressure effect of the PC board, and then the shape of the supporting rods is the shape of the PC board to be sprayed during spraying; at the moment, whether the spray head and the rolling wheel need to rotate or not can be automatically adjusted according to the shape difference between the spray head and the rolling wheel, the spray head and the rolling wheel are fixed, then the sprayed coating can be directly and uniformly rolled through the rolling wheel after the surface of the PC board is sprayed, and the flatness of a hardened layer on the surface of the sprayed PC board is guaranteed.

This invention relates to the field of refractory materials technology, specifically to an anti-slag-adhesion environmentally friendly refractory spray coating adapted to the contact surface of an tundish cover and its preparation method. The dry powder of this spray coating mainly consists of corundum aggregate, modified spinel powder, composite binder, and modified anti-slag additives. Through precise gradation and spatial decoupling of components, a strong and tough skeleton is constructed. During water addition, rheological changes, and baking, the anti-slag additives spontaneously target and migrate outwards, reconstructing a superhydrophobic slag-repellent armor on the slag-facing surface. Combined with the internal spinel-based slag-locking and deformation buffer defense lines, a gradient synergistic defense is achieved. This invention is completely chromium-free and environmentally friendly, completely eliminating the pain point of high-temperature slag adhesion and spalling, extending its service life to 40 heats, and is suitable for large-scale adaptation to special steel continuous casting conditions.

The present invention addresses the problem of providing a fuel cell and a method for manufacturing a fuel cell in which a binder is not used when joining an electrode layer and a gas diffusion layer. In order to solve the problem, a fuel cell (1) has an electrode layer (3) and a gas diffusion layer (5) bonded to the electrode layer (3), the electrode layer (3) contains an ionomer (41), the gas diffusion layer (5) has ionomer particles (42) on at least a part of the surface facing the electrode layer (3), the ionomer particles (42) are the same as the ionomer (41) contained in the electrode layer (3), and the ionomer particles (42) are implemented by spray coating.

The invention relates to the technical field of full mold casting, and provides a lost foam casting method for a thin lower mold insert type casting, which comprises the following steps of: firstly, processing a foam model, and carrying out quantity increasing, hole processing and connecting rib adding on the foam model to prevent the defects of deformation and shrinkage porosity of a shrinkage cavity; then the model is placed on an anti-deformation support which is provided with a check block and has the thickness of 50-100 mm, and deformation generated in the molding sand burying process is avoided; then a bottom pouring type pouring system is arranged, one inner pouring gate is arranged at the thin position of the model, the inner pouring gate keeps away from the drilling position, a straight pouring gate is arranged at the end, and it is guaranteed that molten iron is rapidly and stably filled into the model; then, CAE simulation is carried out, defects are eliminated, positions where shrinkage cavities and shrinkage porosity possibly occur are positioned, sand isolation chillers and inner chillers are arranged, the chilling effect is enhanced, and shrinkage cavities and shrinkage porosity are avoided; then carrying out shower coating operation, drying and then reinforcing; then modeling is conducted, and pouring is conducted after modeling; and then stress relief annealing is carried out, and finally shot blasting is carried out to remove redundant paste.

A dosage form has a core with at least one biologically active ingredient, an intermediate coating layer (ICL), and an enteric coating layer (ECL). The ICL has at least one polymer, at least one alkaline agent, and at least one release acceleration agent. The ECL has at least one polymer. A method for obtaining the dosage form coats the ICL on the core via spray coating, followed by the coating of the ECL on the ICL via spray coating. The dosage form provides accelerated drug release at values of pH 3 to pH 6, with at least 80% drug release within 60 min at pH values 3 and 5.

The utility model relates to the technical field of spray coating treatment, in particular to a spray coating treatment device. Comprising a cylinder body, a group of bearing plates which are vertically arranged at intervals are arranged in the cylinder body, drainage holes are formed in the bearing plates, the diameters of the drainage holes are sequentially increased from top to bottom, the device further comprises a spray-washing mechanism and a flushing mechanism, and the spray-washing mechanism is located above the bearing plates and used for spraying washing liquid; the washing mechanism comprises a washing head corresponding to the bearing plate and is used for washing the workpiece, through the combination of spray washing and washing, washing liquid and impurities are mixed and then flow through drainage holes, the drainage holes with different hole diameters are used for improving the washing effect, meanwhile, the residual washing liquid is removed, and the device is further provided with a sewage draining outlet, an inspection opening and a liquid draining opening. And the washing liquid is convenient to discharge, observe and recycle, so that the coating quality is improved and the consumption of the washing liquid is reduced.

The present invention provides a spraying material and preparation method, a spraying slurry, a spraying coating and formation method, and a spraying component. The spraying material comprises rare earth (R), aluminum, and oxygen, the spraying material being in the form of a powder and comprising a monoclinic rare earth (R) aluminum (R4Al2O9) crystal phase and a rare earth oxide (R2O3) crystal phase. Regarding diffraction peaks detected by X-ray diffraction using characteristic X-rays of Cu–Kα at a diffraction angle 2θ range of 10° to 70°, the spraying material has a diffraction peak attributable to the rare earth oxide (R2O3) and a diffraction peak attributable to the monoclinic rare earth (R) aluminum (R4Al2O9), and an intensity ratio (I(R) / I(RAL)) of the integrated intensity I(R) of the maximum diffraction peak attributable to the rare earth oxide (R2O3) to the integrated intensity I(RAL) of the maximum diffraction peak attributable to the monoclinic rare earth aluminum (R4Al2O9) is at least 1.

The invention discloses a preparation method of a high-quality perovskite thick film for an X-ray detector, and relates to the technical field of radiation detection materials and devices. The preparation method of the thick film comprises the following steps: preparing a precursor solution from lead iodide, cesium iodide, formamidine iodide, methylamine iodide, 4-guanidinobenzoic acid hydrochloride, N, N-dimethylformamide and acetonitrile; a bulk phase functional additive is introduced to optimize a large number of Schottky defects at the grain boundary of the perovskite thick film; depositing onto a heated conductive glass substrate using a spray coating technique; and in combination with a low-temperature solvent atmosphere annealing process, secondary growth of crystal grains and grain boundary healing are promoted, and a large-area polycrystalline thick film can be obtained.

A dual-modal information storage and anti-counterfeiting material, and its preparation method are provided. The dual-modal information storage and anti-counterfeiting material uses cadmium sulfide quantum dots (CdS QDs) as information storage material, and uses the controllable photocorrosion of CdS QDs to achieve dual-modal optical information storage and anti-counterfeiting applications. Firstly, the type of ligands and modification degree of CdS QDs are precisely controlled during the aqueous phase synthesise process, so as to effectively control the photocorrosion phenomenon under UV light irradiation. Subsequently, the CdS QDs are loaded in the hydrogel network, and they are also loaded on the substrates such as cloth and paper by spray coating, dip coating or 3D printing, and the information is stored by digital light patterning. Different from the photochromic function of traditional anti-counterfeiting material, the CdS QDs shows dual-modal patterning characteristics in a wide wavelength range.

The utility model discloses uniform spraying equipment for plastic products, and belongs to the field of spraying. Comprising a support; the spraying head is arranged on the bracket and is used for spraying; the fixed table is rotationally arranged on the bracket; the connecting rod is arranged on the fixed table; the clamping wheel is arranged on the connecting rod and used for clamping and fixing the plastic part; and the driving assembly is used for driving the plastic part to move, and comprehensive spraying is facilitated. The uniform spraying equipment for the plastic products has the beneficial effect that the uniform spraying equipment for the plastic products is capable of achieving comprehensive spraying.

The invention belongs to the technical field of energy materials, and discloses a preparation method of a zinc-based porous organic polymer coating and application of the zinc-based porous organic polymer coating to protection of a zinc negative electrode. Reaction raw materials of the zinc-based porous organic polymer provided by the invention are cheap soluble zinc salt and pyromellitic acid, and the zinc-based porous organic polymer is obtained through a one-step solvothermal reaction. Polyvinylidene fluoride (PVDF) is adopted as a binder, and Zn-POPs is loaded on the surface of the zinc negative electrode in the modes of spin coating, blade coating, spray coating and the like. According to the Zn-POPs protective coating provided by the invention, the concentration distribution of zinc ions on an interface can be dynamically regulated and controlled by an unsaturated coordinate bond, and a dendrite-free zinc negative electrode is realized. Meanwhile, the coating can isolate direct contact between the electrolyte and the negative electrode, so that corrosion of the zinc negative electrode and generation of byproducts are reduced; when the coating is applied to a symmetric battery and a total battery, the battery can show low polarization voltage and stable cycle performance, the advantages of the coating are further highlighted, and subsequent large-scale industrial production can be expected.

A curable composition for spray coating contains 100 parts by weight of a polyalkylene oxide-based polymer (A) having a reactive silicon group, 10 to 50 parts by weight of a hydrocarbon-based diluent (B), 30 to 90 parts by weight of a plasticizer (C) which is a dicarboxylic acid ester containing a cyclic hydrocarbon group, and 0.6 to 7 parts by weight of a polyamide-based rheology modifier (D). A cured film is produced by spraying the above curable composition on the surface of a substrate and curing it.

The utility model relates to the technical field of particle processing, and discloses a device for producing liquid sprayed outside particles, which comprises a bottom plate, a mixing drum is fixedly connected to the rear part of the left side of the bottom plate, a motor is fixedly connected to the top of the rear side of the mixing drum, and the output end of the motor is fixedly connected with a circular gear I; a chain is connected to the outer wall of the first circular gear in a meshed mode, a second circular gear is fixedly connected to the other side of the chain, a transmission shaft is fixedly connected to the middle of the second circular gear, a supporting frame is fixedly connected to the outer wall of the transmission shaft, and stirring rods are fixedly connected to the left side and the right side of the supporting frame. In order to achieve uniform stirring of spraying liquid, the motor drives the first circular gear to rotate, then the stirring rods and the stirring blades are driven to rotate through the chain, the second circular gear, the transmission shaft and the supporting frame, the supporting frame rotates to drive the scraping blocks to scrape the inner wall of the stirring barrel, liquid adhesion is prevented, and the working efficiency is improved.