91 results about "Spray method" patented technology

The invention relates to spraying equipment and a spraying method, in particular to intelligent spraying equipment and a spraying method, and the intelligent spraying equipment comprises the intelligent spraying equipment which is composed of a base, a multi-axis linkage mechanical arm, a precise spraying assembly, a visual positioning module, a rotary clamping mechanism and a central controller. Wherein the precise spraying assembly comprises a piezoelectric ceramic valve and an atomizing nozzle, and independent control over the micro flow and the atomizing angle can be achieved; the visual positioning module assists in precise positioning; the rotary clamping mechanism supports multi-degree-of-freedom adjustment; and the central controller realizes closed-loop spraying control through a track compensation algorithm. The invention further provides a spraying method, through accurate control over spraying parameters, track optimization and energy consumption management, the spraying precision, the film thickness uniformity and the coating utilization rate are remarkably improved, meanwhile, the overall energy consumption is reduced, and the high-quality spraying requirement of the complex workpiece surface is met.

The invention relates to the technical field of spraying control, and discloses a wind power tower wall surface spraying method and system, and the method comprises the steps: scanning a wind power tower wall surface through a sensor, obtaining the surface contour data of the wind power tower wall surface, and forming reference geometric information; curvature distribution characteristics of the reference geometric information are extracted, key path points are extracted according to the curvature distribution characteristics, robot kinematics constraints are introduced to carry out smoothing and coverage completeness integrated processing on the key path points, and therefore a spraying path is generated; establishing a mapping relation between the curvature of the spraying path and nozzle parameters, and setting initial values of atomization pressure and coating flow based on the mapping relation; in the spraying execution process, the real-time thickness monitoring data and the preset thickness are fused to generate a parameter adjusting instruction, and an actuator is driven to conduct online correction on spraying parameters; according to the method, accurate adaptation of the spraying path and the outline of the tower drum and dynamic matching of spraying parameters are achieved, it is ensured that the thickness of the coating always fits the preset standard, and the stability and controllability of the spraying process are improved.

The invention discloses a constant-height adaptive spraying method based on a convolutional neural network and meta-learning, and aims to solve the problems of seemingly constant height and actual non-uniformity caused by the fact that spraying effectiveness and constant-height control are not closed-loop and only the height of a nozzle is controlled but deposition distribution uniformity cannot be guaranteed. The method comprises the following steps: obtaining a canopy image, a pose track, a distance from a nozzle to a canopy and a spraying parameter, carrying out time alignment, and carrying out geometric correction and spraying width coordinate system alignment on the canopy image based on the pose and the track; using the calibration sample to carry out meta-learning rapid adaptation on the deposition distribution estimation convolutional neural network, and outputting deposition distribution, canopy features and uniformity indexes; constructing a micro-deposition agent model composed of a nozzle deposition kernel function, trajectory convolution and attenuation modulation; spraying parameter reference values are optimized according to a deposition uniformity target in the outer ring micro-MPC, constant-height control is achieved in the inner ring micro-MPC with the minimum distance deviation and constraint of the change rate and the safety distance, and the technical effects of deposition distribution closed-loop optimization and constant-height safety tracking are achieved.

The invention discloses an aluminum profile spraying device, and belongs to the technical field of spraying devices, and the aluminum profile spraying device is characterized by comprising a spraying box provided with a box door; the spraying system is installed in the spraying box, the spraying system comprises a spraying head, and the spraying system is used for spraying powder coating; the clamp mechanism is installed in the spraying box, the clamp mechanism comprises a clamping seat, first chuck seats and second chuck seats, the first chuck seats and the second chuck seats are provided with clamping parts, the first chuck seats and the second chuck seats are matched to form a group, the clamp mechanism is provided with two groups of first chuck seats and second chuck seats, and the first chuck seats and the second chuck seats are arranged on the first chuck seats and the second chuck seats. The first chuck seat and the second chuck seat are movably mounted on the clamping seat; and the rotating mechanism is used for driving the clamp mechanism to rotate. According to the spraying device, clamping can be conducted according to the type of the aluminum profile, and the applicability of the spraying device is improved.

This invention discloses a treatment device and spraying method for applying a wear-resistant and heat-resistant coating to the surface of ultra-high-strength steel components, belonging to the field of spraying technology. The proposed solution includes a processing mechanism equipped with a spraying mechanism, which includes an adjustment component. This invention utilizes a moving railcar to enable the spray head to perform linear spraying. Simultaneously, after the support component moves onto the inclined surface of the ultra-high-strength steel component, the railcar adaptively adjusts its position. Furthermore, through pneumatic drive of the rack and pinion and the second shaft gear, the spray head's angle is automatically adjusted according to the real-time angle of the inclined surface of the ultra-high-strength steel component, ensuring that the spray head remains perpendicular to the inclined surface. This achieves omnidirectional, deviation-free spraying of the ultra-high-strength steel component surface. The elastic component automatically adjusts its position following the movement of the railcar, maintaining a preset spraying distance to prevent coating buildup due to excessively close distances and insufficient coating adhesion due to excessively long distances.

The invention provides a low-temperature plasma spraying method for a heat-sensitive polymer matrix and a composite material, and belongs to the technical field of surface engineering. According to the method, through a system process of matrix surface pretreatment, spraying powder drying and low-temperature plasma spraying, the core is that a matrix active cooling technology is adopted in the range of 0-10 DEG C to isolate the plasma arc heat influence, and optimized sand blasting coarsening, powder granularity control and spraying process parameters are matched; and the compact Al2O3-TiO2 ceramic coating with high bonding strength is successfully prepared on a heat-sensitive epoxy resin matrix. The limitation that a traditional thermal spraying technology cannot be used for high polymer materials is broken through, the technological process is simple, the cost is low, and the obtained coating is excellent in abrasion resistance and suitable for meeting the requirement for high performance of the surface of the light high polymer material in the fields of electronic equipment, aerospace and the like.

This invention belongs to the field of advanced manufacturing technology and relates to an electro-spraying method for inducing jets with pre-printed functional layers. Based on electrohydrodynamic effects, a jet is ejected to pre-print complex micro / nano functional structure patterns on a substrate. Then, under the action of an electric field, the jet size and deposition position are induced. Dual nozzles work together to rapidly achieve the same shape as the pre-printed functional layer. The pre-printed functional layer fully adheres to and solidifies with subsequent nanoscale continuous jets, forming a composite micro / nano functional structure. This electro-spraying method uses a pre-printed functional layer to change the distribution of the electric field on the substrate, ensuring the accuracy of the jet deposition position and reducing dimensional errors in the composite micro / nano functional structure process. It has advantages such as low equipment cost, simple process, and short processing cycle, optimizing the micro / nano functional structure and improving the performance and lifespan of nanodevices.

The application discloses a kind of high-efficiency paint spraying method and equipment including paint spraying warehouse, the paint spraying mechanism is located in the side of conveying belt, and drying mechanism and heat conduction adjusting mechanism are simultaneously arranged in the side of paint spraying warehouse in the paint spraying warehouse;Paint spraying mechanism includes slide rail, and bottom frame is movably connected on slide rail by sliding block, and bottom frame is movably connected on slide rail by sliding block, and the top of bottom frame is fixedly connected with base, and the top of base is simultaneously provided with three spray guns, the bottom of the spray gun located in the middle is fixed on the top outer wall of base by fixing frame, and the other two spray guns are symmetrically arranged on the two sides of the spray gun;The bottom of the other two spray guns is fixedly connected with support rod, and support rod is movably arranged on base, and the outer wall of two support rods is respectively fixedly connected with half gear, and two half gears are engaged with each other, and the high-efficiency paint spraying method and equipment disclosed in the application can satisfy the single spraying range of different volume workpieces, and the spraying thickness can be increased, so as to effectively improve the effect of paint spraying efficiency.

The embodiment of the invention provides an unmanned aerial vehicle self-adaptive telegraph pole insulating paint spraying method and device, and the method comprises the steps that in the spraying operation process, operation environment parameters are obtained in real time, the operation environment parameters are input into a pre-trained reinforcement learning model, and the operation environment parameters comprise the wind speed, the paint temperature and the telegraph pole surface coating state; the reinforcement learning model generates and outputs a pumping pressure adjusting instruction and a flight control instruction in real time according to the input environmental parameters; and according to the pumping pressure adjusting instruction and the flight control instruction, a spraying mechanism is synchronously controlled to conduct atomization spraying at the target pumping pressure, and the unmanned aerial vehicle is controlled to fly along the spraying object at the target flight speed till the thickness of the coating on the surface of the telegraph pole meets the target thickness. The stability and the consistency of the spraying quality are improved, and the coating thickness error is controlled within a preset range; the coating waste caused by environmental fluctuation is greatly reduced, the working efficiency is improved, manual high-altitude operation is avoided, and corresponding safety risks are thoroughly eliminated.

This utility model relates to the field of filling machine technology and discloses a material anti-sedimentation circulating stirring structure and a liquid filling machine, including: a main shaft; a spray structure including a volute, an impeller, a spray pipe and a side suction pipe. The volute is fixedly installed below the main shaft, and several side suction pipes extending into the window are fixedly installed on the top of the volute. Several spray pipes are fixedly installed on the side wall of the volute. The impeller is rotatably connected to the volute and fixedly connected to the end of the main shaft. By rotating the impeller, the liquid in the volute is squeezed, causing the liquid to be sprayed out from each spray pipe, promoting the flow of the bottom liquid and inhibiting sedimentation. The rotation of the impeller also causes a vortex to form above the volute, and the liquid is sucked in from the window, realizing the circulation and stirring of the liquid. The liquid flow speed at the window is fast, and the side suction pipe sucks the liquid on one side of the volute into the window, further improving the fluidity of the bottom liquid. By using the liquid suction spray method, the probability of liquid sedimentation during the filling process is greatly reduced.

The invention relates to the technical field of thermal spraying, in particular to a spraying device and method for the inner wall of a bent pipe. A spraying device for the inner wall of a bent pipe comprises a spraying mechanism which comprises a spraying gun, and the spraying gun and the bent pipe can move and rotate relative to each other; the relative movement of the spray gun and the bent pipe is switching between two moving states of the spray gun outside and inside the bent pipe; the relative rotation of the spray gun and the bent pipe is multiple times of rotation of the spray gun in the radial direction of the bent pipe, a preset angle is formed in each time of rotation, and the sum of the relative rotation angles of the spray gun and the bent pipe is 360 degrees. The spraying device for the inner wall of the bent pipe has the advantages that uniform spraying is guaranteed, the possibility that the inner wall of the pipe cannot be sprayed is avoided, and spraying operation of operators is facilitated.

The invention discloses a high-performance composite coating material for a port loading and unloading machine, the high-performance composite coating material comprises a primer, an intermediate paint and a finish paint, the primer, the intermediate paint and the finish paint are connected in sequence, and the primer is a zinc-aluminum-graphene composite primer; the zinc-aluminum-graphene composite primer is prepared from the following components in parts by mass: 15 to 20 parts of epoxy resin, 50 to 60 parts of zinc powder, 22 to 28 parts of flaky aluminum powder, 0.15 to 0.4 part of modified graphene, 6 to 8 parts of curing agent and 1 to 3 parts of additive. Through the mode, according to the high-performance composite coating material for the port loading and unloading machine and the spraying method of the high-performance composite coating material, through innovative component design, the cathode protection capacity, the barrier effect and the mechanical strength of a coating are synchronously improved, and meanwhile, the uniformity and integrity of the coating on the surface of a complex steel structure, especially the edge and the weld joint are ensured.

The invention provides a spraying device and method for a truss insulator, and belongs to the technical field of insulator spraying, the spraying device comprises a walking trolley, a lifting arm, a spraying robot and a visual recognition system, the walking trolley is used for being connected with a truss and has the walking movement freedom degree in the length direction of the truss, and the lifting arm is connected with the walking trolley; the spraying robot is connected to the lifting arm and used for spraying the truss insulator, the visual recognition system is used for recognizing the insulator and positioning the position of the insulator, and the spraying position of the spraying robot is adjusted through movement of the walking trolley in cooperation with lifting of the lifting arm, so that accurate and uniform spraying operation on insulators at different positions is achieved. According to the spraying device and method for the truss insulator, stable deployment and autonomous walking on the truss can be achieved, the operation process is safe and efficient, stable operation in the complex truss environment can be achieved, the spraying quality and efficiency are improved, and good safety, reliability and engineering application value are achieved.

This invention belongs to the field of fire protection technology, specifically relating to a spraying device, spraying method, and usage method. The spraying device includes an outer cylinder for conveying a liquid medium. The outer cylinder includes an expansion section, a direct current section, and a foam nozzle arranged coaxially from back to front. The expansion section is constructed with an inner diameter that gradually increases from back to front. An air inlet is provided on the wall of the foam nozzle, and a foaming net is provided inside the foam nozzle.

The invention discloses an automatic spraying device and method for a long and narrow curved surface space, and belongs to the technical field of automatic spraying. The central axis of the long and narrow curved surface space is used as a reference, a crankshaft track is built in the long and narrow curved surface space, and a flexible traction device drives a spraying trolley to smoothly move along the crankshaft track; meanwhile, a circumferential rotation mechanism on the spraying trolley drives the spraying gun to rotate in the circumferential direction, a radial linear movement mechanism on the spraying trolley drives the spraying gun to horizontally move in the radial direction, and in cooperation with movement of the spraying trolley, the spraying gun accurately moves according to a preset movement route; furthermore, the narrow and long curved surface space is accurately and efficiently sprayed through the spray gun, and the control difficulty of the posture of the spray gun is simplified.

The application discloses a demoulding agent spraying device and spraying method for a tunnel trolley, relates to a tunnel spraying structure technology, and specifically discloses a transverse moving frame in a supporting rack, the transverse moving frame can be transversely displaced relative to the supporting rack, and the end of the transverse moving frame is fixedly installed with a walking frame for wrapping the tunnel trolley, so that a spraying frame arranged on the walking frame can enter and exit a narrow space between an inner wall of the tunnel and an outer wall of the trolley, thereby performing a demoulding agent spraying operation on the outer wall of the trolley in the narrow space between the inner wall of the tunnel and the outer wall of the trolley; a spraying gun is installed on a holding frame, adjacent installation frames form a spraying channel for spraying out the demoulding agent, a position adjusting structure is rotated synchronously by driving the installation frame and the opening and closing structure, and the spraying gun is periodically opened; the wiping member which is periodically in contact with the outer wall of the tunnel trolley, and a pushing structure can adjust the arc curvature of the wiping member, so that the tunnel trolley with different sizes and different curvatures can be adapted.

The invention discloses a self-adaptive formwork assembly for wet spraying of concrete, which comprises a movable connecting mechanism and a flexible formwork, and the movable connecting mechanism is mounted at one end of the flexible formwork and is used for connecting a spray head of a wet spraying trolley; the flexible formwork can generate elastic deformation through bending, so that the end, away from the movable connecting mechanism, of the flexible formwork is pressed on the steel arch support, the flexible formwork is bent to generate elastic deformation, and therefore the steel arch support, the flexible formwork and the sprayed face of the tunnel surrounding rock jointly define a dynamic spraying cavity. The movable connecting mechanism is a spherical hinge or a universal joint, so that when one end of the flexible formwork presses the steel arch support, the posture of the spray head is adjusted through a controller of the wet spraying trolley to spray concrete into the dynamic spraying cavity. According to the invention, spraying conditions can be improved, concrete resilience can be reduced, concrete compactness and bonding quality can be improved, material loss can be greatly reduced, continuous forming of concrete can be realized, and uniform thickness, flat surface and dense interior of a spraying layer can be ensured.

The invention relates to the technical field of mirror frame processing, and discloses a mirror frame coating processing method with waterproof and sunscreen capabilities, which comprises the following steps: S1, cleaning and plasma treatment are carried out on a mirror frame base material; s2, coating a silicon dioxide bottom film by adopting a magnetron sputtering method; s3, coating a waterproof and sunscreen composite film formed by mixing nano titanium dioxide and an organic silicon waterproof agent by adopting a spraying method; s4, coating a silicon dioxide-aluminum oxide composite protective layer by adopting a sol-gel method; and S5, carrying out natural aging treatment on the coated mirror frame. By adopting the plasma pretreatment and multi-layer coating film structure design, the bonding force of the coating film and the mirror frame base material is remarkably improved, the problem of coating film stripping is effectively solved, and the mirror frame has excellent waterproof and sunscreen performance through the synergistic effect of the nano titanium dioxide and the organic silicon waterproof agent.

The application provides a spraying device for building decoration, comprising a spray gun, the spray gun forms a liquid inlet end and a liquid outlet end respectively, the liquid inlet end and the liquid outlet end are respectively provided with a liquid conveying pipe and a spray head, the spraying device for building decoration further comprises: two mirror image arranged limiting blocks, the spray head is concave downward along the spray hole axis direction to form a mounting groove, the two limiting blocks are rotatably arranged in the mounting groove through a pin shaft; an adjusting unit, comprising a driving part sleeved on the spray head and an adjusting part connected between the two limiting blocks, the driving part and the adjusting part are connected. By sliding the driving part along the axis direction of the spray head, the driving part drives the adjusting part connected thereto to move between the two limiting blocks, so that the two limiting blocks rotate synchronously to change the included angle between the two limiting blocks, thereby adjusting the initial spraying angle of the mist-shaped spraying liquid, and the normal spraying work surface can be ensured at a proper spraying distance, the coating thickness is ensured, and spraying liquid waste is avoided.

The invention provides a spraying method, device and equipment based on ultramicro bubbles, a medium and a product, relates to the technical field of agricultural spraying, and aims to overcome the defect of serious side effects caused by a liquid medicine spraying mode in the prior art and achieve the effects that the pesticide effect of liquid medicine is not reduced and the environment is not polluted when the liquid medicine is sprayed. Comprising the steps that the generation speed of ultramicro bubbles is controlled based on preset concentration, and the particle size of the ultramicro bubbles is smaller than preset particle size; injecting the ultramicro bubbles into a liquid medicine to be sprayed to obtain a gas-liquid mixed liquid medicine; and spraying the gas-liquid mixed liquid medicine on leaf surfaces of plants.

The invention discloses a PCB (Printed Circuit Board) solder resist silicon-free ink spraying method and equipment. The PCB solder resist silicon-free ink spraying method comprises the following steps of S100, performing pretreatment on a PCB after hole plugging; s200, a diluent is used for cleaning spraying equipment for the first time, and silicon-free solder resist ink is used for spraying the first face of the PCB after pretreatment; s300, after the spraying equipment is cleaned for the second time by using a diluent, spraying is carried out on the second surface of the PCB by using silicon-free solder resist ink; s400, carrying out pre-drying, exposure, development and post-drying on the PCB after the two times of spraying; wherein the step S200 and the step S300 are carried out in a constant-temperature and constant-humidity dust-free environment, and the spraying parameters meet the conditions that the low-viscosity flow velocity of the printing ink is 27-33 s, the high-viscosity flow velocity of the printing ink is 50-56 s, the atomization rate of the spray gun in the step S200 is 500-600 per thousand, and the atomization rate of the spray gun in the step S300 is 400-500 per thousand.

The invention relates to the technical field of automobile spraying, in particular to nano anticorrosive paint for a chassis as well as a preparation method and a spraying method of the nano anticorrosive paint. The nano anticorrosive paint is prepared from the following raw material components in percentage by mass: 50 to 60 weight percent of water-borne epoxy resin, 1.0 to 1.5 weight percent of modified nano particles, 0.8 to 1.2 weight percent of pH response type corrosion inhibitor microcapsules, 0.5 to 1.0 weight percent of dispersing agent, 0.3 to 0.6 weight percent of wetting agent, 0.2 to 0.4 weight percent of defoaming agent, 0.1 to 0.3 weight percent of flatting agent and the balance of deionized water. According to the composite spraying technology, the dispersion uniformity of the nano-particles is improved by 40% or above, and the thickness deviation of the coating is controlled within + / -3 microns; the optimized curing process improves the construction efficiency by 35% and reduces the energy consumption to 3.2 kW.h / m.

The invention relates to the technical field of spraying devices, and particularly discloses a spraying method for preparing a metal display net, the spraying method comprises three stages of pretreatment, electrostatic spraying and curing, the electrostatic spraying stage is realized through special equipment, and the equipment comprises a rack, a conveying roller, a spraying mechanism, a dirt collecting bin and an outer cover. The spraying mechanism drives a carrying seat to move into the outer cover through a transverse moving structure, double spraying assemblies which are symmetrical front and back are arranged on the spraying mechanism, and efficient double-face spraying can be conducted on the metal net; a distance adjusting mechanism in the material spraying assembly can automatically adjust the distance between upper and lower nozzles to adapt to different net thicknesses; after spraying, the workpiece immediately enters an up-down synergistic heating area composed of a pre-drying structure and an electric heating pipe to be preliminarily cured. According to the invention, the diffusion of the coating is effectively inhibited, the working environment is improved, the production efficiency and the coating quality are improved, and the first-pass yield and the long-term reliability of the product are ensured through the spraying and curing integrated design.

The present application discloses a polyurethane-ceramic composite coating and a spraying method. The coating includes two base materials, namely, a bottom layer and a surface layer. The bottom layer is arranged on a surface of a wind power blade and is a polyurethane base material, and the surface layer is arranged on the bottom layer and is a ceramic base material. A middle layer, namely, the polyurethane-ceramic composite coating, is formed between the surface layer and the bottom layer, serves as an adhesive for the bottom layer and the surface layer and can bond the bottom layer and the surface layer more tightly. As ceramic has characteristics of being water-proof, alcohol-resistant, wear-proof, scratch-resistant and high temperature resistant, a strength of a surface coating of the wind power blade is improved, an effect on protecting the polyurethane base material of the bottom layer is achieved, and a service life of the polyurethane base material is prolonged. The polyurethane-ceramic composite paint is sprayed to the wind power blade, so a service life of the wind power blade is prolonged.

The polishing and spraying integrated ship plate spraying robot and the ship plate spraying method belong to the field of ship manufacturing. The polishing and spraying integrated ship plate spraying robot comprises a wall-climbing robot and a mobile vehicle. The wall-climbing robot comprises a wall-climbing chassis capable of being adsorbed and moving along a ship plate surface, a carrying platform, a three-degree-of-freedom guide rail for driving the carrying platform to move, and a polishing mechanism, a spraying mechanism and a detection mechanism connected to the carrying platform. The polishing mechanism comprises a laser radar for detecting defects on the surface of the ship plate and a grinding wheel for grinding the defects on the surface of the ship plate. The spraying mechanism comprises a spray gun capable of rotating to spray the surface of the ship plate. The detection mechanism comprises a film thickness measuring instrument for measuring the thickness of the coating on the surface of the ship plate and a scanning electron microscope for analyzing whether defects exist on the surface of the ship plate. The mobile vehicle comprises a conveying pump and a bucket for conveying paint to the spray gun. The polishing and spraying integrated ship plate spraying robot and the spraying method can improve the quality of the coating on the ship plate by detecting and polishing the defects on the surface of the ship plate before and after spraying.

The invention discloses a building block cutting device for building construction, and relates to the technical field of brick building block manufacturing. The brick block cutting device comprises a to-be-cut brick block placed on a cutting box, and further comprises a servo motor, and a driving roller used for driving is arranged at the driving end of the servo motor; the cutting platform is slidably provided with a placing table used for placing brick blocks, and the placing table is provided with two positioning assemblies used for positioning; and a cutting unit is arranged between the supporting frame and the cutting box, and the cutting unit comprises a cutting assembly and a collecting assembly. The brick building block cutting device has the beneficial effects that brick building blocks of different sizes can be cut by adopting the cutting mode that the multiple cutting saw belts are matched, the positions of the cutting saw belts can be adjusted, the brick building blocks of different sizes can be cut out, cooling protection of the cutting saw belts and dust falling treatment of cutting chippings can be achieved by adopting a spraying mode during cutting, and the cutting efficiency is improved. The service life of the cutting saw belt is prolonged, and the cutting effect is better.

Provided are a spray device and a spray method for efficiently forming a fine mist of a stock solution by using a simple method. This spray device includes: a pressure-resistant container; and a spray unit connected to the pressure-resistant container. The pressure-resistant container contains a liquid mixture obtained by mixing a stock solution and liquid carbon dioxide. A mist of the liquid mixture is sprayed from the spray unit, and the temperature of the pressure-resistant container ranges from greater than the triple point temperature of carbon dioxide to less than the critical temperature thereof.

This invention belongs to the field of metal pipe painting technology, and in particular to a metal product painting equipment and method. The inner side of the pipe body is supported by the extension and retraction adjustment of the adaptive rotation component. The position of the X-axis sliding table is adjusted according to the overall length of the pipe body. The outer side of the X-axis sliding table is clamped to the end face of the pipe body by the horizontal adjustment component. The adaptive rotation component drives the pipe body to rotate, and works with the inclined painting component to complete the efficient painting of the outer wall of the pipe body. The inclined painting component moves stably along the outer side of the support top frame and paints the surface of the pipe body at a 30° angle along the Z-axis. By adjusting the relative distance of the horizontal adjustment components, a suitable spray angle is achieved, which prevents uneven painting due to being too close or reduced painting efficiency due to being too far away, thereby improving the stability of the painting process.

To provide an expandable accelerator capable of preventing acceleration inhibition of an accelerator caused by precipitation of natroalunite, and of exhibiting excellent workability, a spray concrete composition, sprayed concrete, and a spray construction method.SOLUTION: The expandable accelerator to be blended in a spray concrete composition containing cement concrete and polyethylene oxide of a mass average molecular weight of 100000 to 3000000, includes a liquid accelerator including aluminum, sulfur and sodium, with the natroalunite content therein being 0.3 to 3 mass% and the pH thereof being 1 to 4, and a powdery auxiliary containing an alkali carbonate.SELECTED DRAWING: None

The application discloses a kind of annular continuous spray devices and spraying methods of outer decorative wallboard, it is related to spray equipment technical field, comprising: support platform, further comprising: support plate one, support plate two, wallboard body, mounting bracket, spray gun, alignment assembly and clamping assembly;The support plate one is slidably installed on the top of the support platform by sliding assembly;The support plate two is horizontally arranged on the top of the support plate one;The wallboard body has several, and several wallboard bodies are arranged vertically on the top of the support plate two;The mounting bracket is fixedly installed on the top of the support platform;The spray gun has several, and several spray guns are fixedly installed on one end of the mounting bracket at equal intervals;The beneficial effects of the application: multiple wallboard continuous double-sided spraying is realized, manual turning is not needed, the spraying surface and the spray gun are always opposite, and the coating effect is uniform.