65results about How to "Avoid hollowing" patented technology

The invention relates to the technical field of building construction, in particular to an outer wall rock wool insulation board construction method, which comprises the following steps of: placing two templates at an interval, placing square timbers on the outer sides of the templates, arranging a sleeve water stop screw rod between the two templates, and pouring concrete between the two templates to form a wall body; a plastic plug is installed at the end, located on the outer side of the wall, of the sleeve water stop screw. Plastering operation is conducted on the outer side of the wall so that a plaster layer can be formed on the outer side of the wall; after the plaster layer is dried, positioning holes corresponding to the plastic plugs are formed in the rock wool insulation board, and the rock wool insulation board is bonded and fixed to the outer side of the plaster layer; and glass fiber gridding cloth is bonded and fixed to the outer side of the rock wool heat preservation plate, and fixing lead screws sequentially penetrate through the positioning holes and the plaster layers to be connected with the sleeve water stop screw rods. The external wall rock wool insulation board can be effectively and firmly fixed, and the phenomena of falling off and hollowing of the rock wool insulation board are avoided; and meanwhile, the leakage phenomenon of the outer wall can be effectively avoided.

The invention discloses an injection molding device for plastic pipes, and relates to the technical field of injection molding, the injection molding device comprises a machine base, an injection assembly and a feeding assembly, a mold closing assembly is arranged on the upper end face of the machine base, the injection assembly comprises a molten material barrel and a material pushing screw rod, the molten material barrel is installed on the machine base, and an injection port is formed in one end of the molten material barrel; the feeding assembly comprises a feeding pipeline, the feeding pipeline is communicated with the melting material barrel, a feeding port is formed in the feeding pipeline, a feeding screw rod is arranged in the feeding pipeline, a driving part for driving the feeding screw rod to rotate is arranged on the feeding pipeline, and the driving part is connected with the feeding screw rod. The lower end of the feeding screw rod is connected with a filter screen disc which is arranged in an inclined mode. The device has the effects that caked plastic particles can be avoided as much as possible, so that complete melting of the plastic particles is guaranteed as much as possible, stable operation of the device is guaranteed as much as possible, and the production quality of products is improved as much as possible.

The utility model discloses a gluing device for aluminum alloy door and window installation, which comprises a glue injection cylinder, one end of the glue injection cylinder is provided with an opening, the glue injection cylinder is provided with a glue injection nozzle in a detachable and sealed connection mode through threaded connection close to the opening end, one side of the glue injection cylinder close to the glue injection nozzle is connected with an auxiliary shell, and the auxiliary shell is internally connected with a dust cleaning assembly. A piston plate is slidably and hermetically connected into the glue injection barrel, a motor is connected to the end, away from the opening, of the glue injection barrel, and the power output end of the motor is connected with a telescopic driving assembly capable of driving the piston plate to slide. Compared with the prior art, the electric gluing device has the advantages that by adopting an electric mode, the labor is saved, the occupied space is reduced, the application range of the device is widened, dust is convenient to clean, and the gluing quality is improved.

The invention discloses a rubber material for double-sided vulcanization crosslinking bonding and a preparation method thereof, and belongs to the technical field of rubber bonding materials, and the rubber material comprises the following components in parts by mass: 180-90 parts of natural rubber RSS, 1-3 parts of cis-1, 3-butanediol, 1-3 parts of a vulcanizing agent, 1-3 parts of a vulcanizing agent and 1-3 parts According to the rubber material, 10-20 parts of 1, 4-polybutadiene rubber, 40-60 parts of carbon black, 1.5-2 parts of sulfur, 0.5-0.6 part of an accelerant, 6-7 parts of zinc oxide, 5-8 parts of a stabilizing auxiliary agent, 1 part of stearic acid, 2 parts of an anti-aging agent, 8 parts of aromatic hydrocarbon oil and 2.5-4 parts of p-tert-butylphenol acetylene resin are used, and the rubber material is used for bonding the ceramic lining plate and the metal framework through double-face vulcanization crosslinking. The mechanical property, the wear resistance and the elasticity of the rubber material are improved, the ceramic lining plate and the metal framework are completely attached, hollowing of a bonding surface is avoided, and the use requirement of the rubber material as a bonding material is met.

The invention provides a super-strong weather-resistant rock plate and steel grit double-component ceramic tile back adhesive and a preparation method thereof, the back adhesive comprises a powder component and an emulsion component, the powder component comprises Portland cement, quartz sand, carborundum, a water reducing agent, latex powder and the like, and the emulsion component comprises an acrylic emulsion, a dispersing agent, a defoaming agent, a coalescing agent, deionized water and the like. Wherein the water reducing agent can be a polycarboxylic acid water reducing agent or a naphthalene-based high-efficiency water reducing agent; the latex powder is prepared from vinyl acetate-ethylene copolymerized rubber powder, styrene-acrylate and vinyl acetate homopolymerized rubber powder according to a specific proportion. And the dispersing agent, the defoaming agent and the coalescing agent have various choices. The preparation method comprises the following steps: respectively preparing the powder component and the emulsion component, mixing the powder component and the emulsion component in proportion, and carrying out ultrasonic-assisted stirring. The ceramic tile back adhesive disclosed by the invention has super-strong weather resistance, good bonding strength and chemical corrosion resistance, is suitable for various building scenes, and provides a reliable solution for ceramic tile adhesion.

The utility model provides an electric heating silica gel plate fixing device and a heating system, relates to the technical field of heating equipment, and solves the technical problems of edge warping and hollowing of a heating sheet in the prior art. The device comprises abutting assemblies and a pressing plate, the pressing plate completely covers an electric heating silica gel plate, the abutting assemblies are arranged on a rectangular pipe of an upper cavity, the abutting ends of the abutting assemblies abut against the pressing plate, and the multiple abutting assemblies are arranged in the circumferential direction of the pressing plate. The electric heating silica gel plate fixing device is used for fixing the electric heating silica gel plate through the combination of the abutting assembly and the pressing plate, and therefore the problems of edge warping and hollowing of the electric heating silica gel plate are solved.

The utility model discloses an external reinforcing rib PVC electrical conduit, which comprises a core tube, a reinforcing outer tube is arranged on the surface of the core tube, external spiral reinforcing ribs are uniformly arranged on the surface of the reinforcing outer tube, the external spiral reinforcing ribs comprise thick spiral ribs and thin spiral ribs, and the thin spiral ribs are positioned between two adjacent thick spiral ribs; a flame-retardant inner pipe is arranged on the inner wall of the core pipe, and inner spiral reinforcing ribs are evenly arranged on the inner wall of the flame-retardant inner pipe. The reinforcing ribs of the three-dimensional structure are designed and are spiral, so that the axial structural strength is improved, the circumferential structural strength is also improved, and the compression resistance effect is improved; the outer spiral reinforcing rib comprises a thick spiral rib and a thin spiral rib, so that the surface area can be increased, the adhesive force with concrete is increased, and hollowing and cracking of the concrete are prevented; the friction resistance can be reduced by reducing the contact area between the internal spiral reinforcing ribs and the threading wire, the threading wire in the early stage and the threading wire in the later stage are convenient, the wiring difficulty is reduced, the flame retardant effect can be improved by arranging the ceramic coating, and the use is safer.

The utility model discloses a prefabricated concrete steel bar truss structure which comprises a bottom plate and a plurality of steel bar truss bodies, the steel bar truss bodies are arranged on the bottom plate at equal intervals, and each steel bar truss body is composed of two lower chord steel bars, an upper chord steel bar, two web member steel bars and a plurality of connecting plates. A plurality of connecting bases are arranged on the periphery of the upper end of each bottom plate at equal intervals, and every two adjacent bottom plates are connected through a plurality of fixing assemblies connected with the corresponding connecting bases. The truss structure is reasonable in structural design, simple in structure and convenient to machine, has good strength and compression resistance, prevents the deformation phenomenon of the truss structure, can enable the two adjacent bottom plates to be fully attached, connected and assembled through the fixing assemblies, and avoids the deviation problem of the bottom plates.

The application discloses a steel structure concrete composite structure and a construction method thereof. The construction method is that concrete mixed with shape memory alloy fiber aggregate is poured into a cavity of a steel structure to form the steel structure concrete composite structure. The application can improve the crack resistance and shrinkage resistance of the concrete structure, avoid crack generation and internal cavity hollow caused by concrete shrinkage, and thus improve the forming quality of the steel structure concrete composite structure and the overall bearing capacity and durability of the steel structure concrete composite structure.

The utility model discloses an assembly type disassembly-free steel bar truss floor support plate which comprises a first floor support plate, a second floor support plate is arranged on one side of the first floor support plate, a connecting device is arranged on the first floor support plate, and the connecting device comprises an inclined block, a conical block, an inserting block, an inserting groove, an inserting rod, an inserting sleeve, a clamping groove and an elastic plate. The multiple inserting sleeves are installed at the corresponding positions of the first floor bearing plate and the second floor bearing plate correspondingly, the inserting rods are installed in the inserting sleeves, the elastic plates are installed in the inserting sleeves, the clamping grooves are formed in the side walls of the inserting rods, the conical blocks are connected to the bottom ends of the inserting rods, the inclined blocks are installed in the inserting sleeves, and the inserting grooves are formed in the corresponding positions of the inner sides of the first floor bearing plate and the second floor bearing plate. One end of the inserting block is fixedly connected with the inclined block, the other end of the inserting block is inserted into the inserting groove, a supporting rib is arranged on the first floor support plate, the bottom end of the supporting rib is connected with a positioning device, and the problems that in the prior art, floor support plates are not stable in connection, and steel bars are difficult to position are effectively solved.

The utility model relates to the technical field of building waterproofing, in particular to a waterproof layer laying device which comprises a machine frame, a containing groove is formed in the machine frame, a discharging port is formed in one side of the containing groove, side plates are fixed to the two ends of the bottom of the machine frame, and supporting rollers are rotationally connected between the bottoms of the side plates through pin shafts. Waterproof cloth is arranged in the containing groove, the waterproof cloth penetrates through the discharging opening and then is laid on the outer wall of the supporting roller, a dismounting and mounting assembly is arranged at the top of the rack, supporting plates are fixed to the two ends of one side of the bottom of the rack, and a flattening assembly is arranged between the supporting plates. According to the cart type waterproof layer laying device, laying operation on waterproof cloth is facilitated, the pressing roller can be pressed on the waterproof cloth under the tensioning effect of the spring, flattening operation on the waterproof cloth is facilitated, the laying operation process and the flattening operation process are effectively combined together, and the laying efficiency is improved. And the phenomenon of hollowing in the laying process is effectively avoided.

The present invention discloses a crystal head with a bracket structure, comprising a crystal head body, a wire core frame inserted in the front side of the crystal head body, the wire core frame is used for inserting wire cores in a communication line, a bracket is inserted in the crystal head body located behind the wire core frame, the top surface, bottom surface, left side surface and right side surface of the bracket are all in contact with the inner wall surface of the crystal head body, the top surface and left and right side surfaces of the bracket are all provided with wire grooves, the three wire grooves are respectively used for passing three pairs of wire cores in the communication line, a wire hole is provided in the middle of the bracket, the wire hole is used for passing the remaining pair of wire cores in the communication line; a groove is provided on the inner bottom of the bracket, the groove is used for plastic injection; the crystal head body, the bracket and the communication line are integrated by plastic injection molding; the present invention can improve the aesthetics of the crystal head body after being connected to the communication line.

The invention discloses an intelligent device for cement mortar shrinkage performance and a test method, the intelligent device comprises a shell, and further comprises a compression ring assembly used for preventing hollowing of a cement block, the compression ring assembly comprises a cylinder, push rings, a push rod and an eccentric wheel, the push rings are movably connected to the two ends of the cylinder, and the eccentric wheel is movably connected to the push rod; the two push rings are hinged to push rods through hinged supports on the push rings, the other ends of the two push rods are rotationally connected with the push rods through guide rods at the eccentric positions of eccentric wheels, the two eccentric wheels are rotationally connected to the two sides of a shell through short shafts at the axes of the eccentric wheels, the shell is connected with a limiting assembly, and the top end of the shell is connected with a clamping assembly. According to the invention, hollowing in the cement block can be effectively prevented when the cement block is manufactured.

The invention discloses an ardealite pavement base course paving method and a device thereof, and belongs to the technical field of roadbed paving, the device comprises a paving device main body driven by a driving device, the paving device main body comprises a paving frame, the paving frame is provided with a lower paving unit for paving modified ardealite lightweight aggregate, and the paving frame is provided with a lower paving unit for paving the modified ardealite lightweight aggregate. The upper paving unit is used for paving roadbed powder, and a high-frequency vibration unit for vibrating the roadbed is arranged on the paving frame. According to the method, the existing phosphogypsum roadbed is designed, the prepared modified phosphogypsum lightweight aggregate is firstly paved on the gravel through the paving device to form the modified phosphogypsum lightweight aggregate layer, and then the phosphogypsum powder is paved on the modified phosphogypsum lightweight aggregate layer to form the modified phosphogypsum lightweight aggregate layer. And the modified phosphogypsum lightweight aggregate and the roadbed powder are vibrated through the high-frequency vibration unit to ensure that the phosphogypsum powder and the roadbed are uniformly mixed, so that hollowing is avoided, the strength of the pavement is remarkably enhanced, and the service life of the pavement is remarkably prolonged.

The utility model provides a kind of pipe well, including two wallboards of mutual lap to enclose pipeline, two groups of support frame and the protective layer being arranged on the outer surface of wallboard by the fixed part connecting wall and wallboard, can improve the structural stability of pipe well, construction efficiency, sound insulation and waterproof thermal insulation.

The application discloses a spray pyrolysis device and a method for preparing ternary positive electrode precursors by using the same. The spray pyrolysis device comprises a feeding unit, a spraying unit and a pyrolysis unit; a first unit, a second unit and a third unit are sequentially arranged in a cavity of the spraying unit; an atomizing device is arranged at an outlet of the third unit; the first unit, the second unit and the third unit are heated by a first ultrasonic wave generating assembly, a second ultrasonic wave generating assembly and a third ultrasonic wave generating assembly respectively; the atomizing device is communicated with the pyrolysis unit, so that atomized liquid generated by the atomizing device enters the pyrolysis unit; a ignition device is arranged at an inlet of the pyrolysis unit; P1 < P2 < P3. The spray pyrolysis device can avoid the problems of particle breakage and hollowing of the positive electrode material precursor, so that the tap density of the positive electrode material precursor is high, the specific surface area is low, and the chlorine content is low, thereby improving the energy density, cycle performance and safety performance of the positive electrode material, and reducing the preparation cost.

The invention relates to the technical field of concrete, and particularly discloses large-particle recycled aggregate concrete and a preparation method thereof. The large-particle recycled aggregate concrete is prepared from the following components in parts by weight: 700 to 950 parts of recycled coarse aggregate, 500 to 650 parts of fine aggregate, 300 to 400 parts of cement, 40 to 60 parts of fly ash, 40 to 60 parts of mineral powder, 60 to 80 parts of self-repairing filler, 20 to 30 parts of water reducing agent, 3 to 8 parts of silane coupling agent, 60 to 80 parts of floating bead and 150 to 250 parts of water, the self-repairing filler comprises a modified fiber filler and a modified microsphere filler in a mass ratio of (1-4): (2-6). The large-particle recycled aggregate concrete prepared by the preparation method disclosed by the invention has excellent impermeability and crack resistance and relatively good durability.

The present invention relates to a concrete suitable for internal pouring of a steel lattice column and a construction method thereof, and belongs to the technical field of building concrete. The concrete suitable for internal pouring of a steel lattice column according to the present invention contains the following components by weight: 300-330 parts of silicate cement, 100-120 parts of fly ash, 730-750 parts of sand, 850-900 parts of gravel, 30-50 parts of modified coal gangue, 12-20 parts of composite admixture, 0.15-0.2 parts of air entraining agent, and 180-200 parts of water. The concrete prepared by the present invention has good fluidity, can be constructed for structures with dense steel bars, narrow space, and complex shapes, and is convenient to construct; the overall structure has a high density, and the volume stability is strong, and the curing shrinkage is reduced.

The invention discloses a laminating device and application in solar photovoltaic module production, and relates to the technical field of laminating, the laminating device comprises a frame, a vacuum device and a constant temperature device, a sealing frame is fixed on the frame, a pressing plate is arranged at the upper end of the sealing frame, a hydraulic rod is fixed at the upper end of the pressing plate, and the upper end of the hydraulic rod is fixedly connected with the frame; a limiting frame is fixed in the sealing frame, a floating assembly is slidably connected in the limiting frame, an extrusion assembly and a guide assembly are arranged on the inner wall of the sealing frame, the end, located in the sealing frame, of the extrusion assembly is connected with a glue removing piece, the floating assembly comprises a floating plate, the upper end of the floating plate is slidably connected with a plurality of adsorption fixing assemblies, and the floating plate is slidably connected with the limiting frame. A flow equalizing grid is fixed at the lower end of the floating plate, a lower sealing plate fixedly connected with the limiting frame is arranged at the lower end of the flow equalizing grid, an air chamber is arranged in the floating plate, and the limiting frame is matched with the slope, so that primary alignment is carried out when the battery piece, the cover plate glass and the back plate are placed on the floating plate through an external device.

A fabricated foam concrete post-grouting floor engineering construction method adopts a fabricated construction method and comprises the steps that a floor block is mounted on a floor base layer in an overhead mode, then foam concrete is filled in a cavity between the floor block and the floor base layer, and after the foam concrete is solidified, a floor engineering is completed. The construction method not only can improve the construction efficiency of the block material flooring engineering, but also can effectively guarantee the construction quality of the block material flooring engineering.

A bath pedal convenient to install comprises a pedal body, and a containing area capable of containing a lifting rope is arranged at the bottom of the pedal body. A hollow pipe is installed at the bottom of the pedal body, and the interior of the hollow pipe is hollow to form a containing area. And the hollow pipe is fixed at the bottom of the pedal body through an adhesive. The bath pedal has the advantages that the containing area capable of containing the lifting rope is innovatively arranged at the bottom of the bath pedal body, and the core advantage of the structure is that an acting point is provided for the installation process. During installation, installation personnel can enable a lifting rope to penetrate through the hollow flat pipes arranged at the bottom of the pedal. Afterwards, the two persons can respectively pull the two ends of one lifting rope, and the whole bath pedal can be horizontally lifted easily and stably like a lifting handle. The problem that in the prior art, due to the fact that pedals are heavy and lack suitable grabbing points, force is difficult to apply especially in narrow spaces such as three faces leaning against the wall is thoroughly solved.

The present invention discloses an adhesive device for automobile interior panel parts, which relates to the technical field of adhesive devices, and includes a frame, a mounting frame, and a pressing and hemming mechanism, wherein a "π"-shaped storage seat is bolted on the frame. The present invention arranges a detachable storage seat on the frame, and cooperates with the pressing and hemming mechanism arranged on the mounting frame, and the output end of the driving motor drives the crank to rotate, and the pressing piece is pushed downward by the slip ring, the slide rod, and the spring, and then the lower end convex plane of the pressing piece is used to flatly press the upper end surface of the interior panel. With the reciprocating rotation of the crank, a small amount of bubbles existing inside the panel bonding is completely eliminated to avoid the hollowing phenomenon. At the same time, the two hemming rollers rotate in opposite directions, and the internal air can be discharged from the end of the interior panel and further hemming can be achieved. The pressing and hemming processes are completed at a single station, which greatly improves the processing efficiency.

The utility model relates to the technical field of asphalt waterproof coiled materials, and provides an SBS (Styrene Butadiene Styrene) elastomer modified asphalt waterproof coiled material, which comprises a winding drum, an elastomer modified asphalt waterproof coiled material body and a laying mechanism. The bottom of the elastomer modified asphalt waterproof coiled material body is baked to a molten state through a spray gun, then a fixing piece is pulled to enable an inserting rod to be separated from a limiting groove in a positioning plate, and a supporting frame is pushed to drive a pressing roller to roll on the upper surface of the elastomer modified asphalt waterproof coiled material body; and pressing the melt layer at the bottom of the elastomer modified asphalt waterproof coiled material body by a pressing roller to be in contact with the ground, so that the elastomer modified asphalt waterproof coiled material body is adhered and fixed with the ground, and through the technical scheme, the problems that in the prior art, the coiled material is prone to wrinkling and hollowing in the full-adhesion process, and the service life of the coiled material is prolonged are solved. The laying flatness and the service life of the coiled material are influenced.

The utility model relates to the technical field of mortar paving devices, and discloses a mortar paving device during masonry, which comprises a side plate, a baffle is fixedly mounted on the right side of the side plate, and a first fixing plate is fixedly mounted on the left side of the side plate. Through the arrangement of the first fixed plate, the second fixed plate and the movable plate, an operator places the side plate on the upper surface of a brick, so that the bottoms of the rollers and the bottoms of the first fixed plate and the second fixed plate are in contact with the upper surface of the brick, the inner surface of the side plate is in contact with the side surface of the brick, and then a second handle is pushed rightwards, so that the brick is fixed. By arranging the movable plate on the side plate, mortar in the side plate is extruded out through the lower portion of the movable plate, then the mortar can be evenly paved on bricks, an operator can use the mortar paving device conveniently, the threshold of the mortar paving technology is lowered, the phenomenon that the interior of the mortar is hollow is avoided, and meanwhile the situation that the mortar is scattered when the mortar is paved can be avoided.

The application discloses a stainless steel and carbon steel composite pipe, which comprises a stainless steel pipe coaxially arranged at an outer layer and a carbon steel pipe at an inner layer, and the stainless steel pipe and the carbon steel pipe are filled and bonded through PE. The application also provides a ring expansion composite system and process, a stainless steel and carbon steel composite pipe, a clamping mechanism symmetrically arranged at two ends of the stainless steel pipe and the carbon steel pipe, a PE supply device for pressing flowy PE into an annular cavity between the stainless steel pipe and the carbon steel pipe through the clamping mechanism, and a heating and heat preserving device for heating and heat preserving the carbon steel pipe. The stainless steel and carbon steel composite pipe has the advantages that the outer layer of stainless steel is used for resisting oxidation and corrosion, the inner layer of carbon steel is used for resisting water pressure, the strength of the composite pipe is ensured, the PE at the middle part is used for bonding the stainless steel layer and the carbon steel layer into a whole, the overall strength of the composite pipe is improved, and the manufacturing difficulty of the composite pipe is reduced.

The utility model discloses a kind of green building thermal insulation wall, including substrate and composite board, the outer wall of one side of substrate away from composite board is equipped with equidistance distribution stalactite protrusion, the outer wall of substrate is opened with equidistance distribution first exhaust hole, the first exhaust hole is located in the clearance portion between adjacent stalactite protrusion, the outer wall of substrate is installed with internal thread sleeve by aperture in four corners, the outer wall of four corners of composite board is opened with equidistance distribution settlement hole, the inner wall of internal thread sleeve is equipped with compatible internal hexagon bolt with settlement hole.The utility model can quickly discharge the gas between substrate and wall by equidistance distribution first exhaust hole on substrate, prevent the gas chamber and cavity between substrate and wall, can effectively avoid the occurrence of hollowing phenomenon, avoid falling on wall, greatly improve the service life of the utility model.

The utility model discloses an indoor wall surface capable of reducing ceramic tile hollowing, and belongs to the field of building indoor wall surfaces, the indoor wall surface comprises a wall surface, one side of the wall surface is provided with a hollowing reducing mechanism, the hollowing reducing mechanism comprises a fixing plate, the fixing plate is slidably connected with the wall surface, one side of the fixing plate is fixedly connected with a wire mesh, and the wire mesh is fixedly connected with the wall surface. An adhesion layer is arranged on one side of the iron gauze, tiles adhere to one side of the adhesion layer, a fixing mechanism is arranged on the top of the fixing plate, a splicing mechanism is arranged on one side of the fixing plate, and a limiting mechanism is arranged in the splicing mechanism. And then the ceramic tiles are adhered to the surface of the iron wire net through the adhesion layer smeared on the surface of the iron wire net, so that the problems that according to an existing indoor wall surface capable of reducing ceramic tile hollowing, when the surfaces of the ceramic tiles are grooved, the ceramic tiles are prone to being broken, and the machining difficulty is increased are solved, and practicability is improved.

The invention discloses a wall building robot which comprises a frame body, a first driving mechanism, a mortar throwing mechanism, a mortar conveying pipe and a mortar plastering mechanism. The first driving mechanism is mounted on the frame body; the mortar throwing mechanism is connected with a first output part of the first driving mechanism, so that the mortar throwing mechanism attaches mortar to a wall surface in a patting manner; the mortar conveying pipe is mounted on the mortar throwing mechanism so as to move along with the mortar throwing mechanism, and the mortar conveying pipe is used for conveying mortar to the mortar throwing mechanism; and the plastering mechanism is connected with the second output part of the first driving mechanism, so that the plastering mechanism flatly paves mortar attached to the wall surface on the wall surface along the mortar throwing path of the mortar throwing mechanism. The plastering device can replace workers to conduct plastering operation, and the working time sequence of mortar throwing and plastering is shortened.