Mortar spraying machine assembly device and spraying process thereof

Abstract

The mortar spraying machine assembly device comprises a cart, a spraying machine body is installed on the cart, a spraying pipe and a spraying head are arranged at the end of the spraying machine body, and a first adjusting frame, a collecting box and a water storage box are arranged on the two sides of the spraying machine body correspondingly; the first adjusting frame is connected with a lifting frame, a mounting plate is mounted on the lifting frame, a fixing part is mounted on the mounting plate through a track motor, a liftable troweling plate is mounted on one side of the fixing part, a collecting hopper is connected to the lower portion of the fixing part, and the bottom of the collecting hopper is connected with the collecting box through a return pipe; the top of the collecting hopper communicates with the water storage box through a water conveying pipe, and a water pump is arranged on the water conveying pipe. According to the device, the top wall of a building can be uniformly sprayed without manual holding, the spraying efficiency is greatly improved, manual trowelling operation is not needed, spraying and trowelling are conducted synchronously, time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of building decoration technology, specifically to a cement mortar spraying machine assembly and its spraying process. Background Technology

[0002] In current construction projects such as building construction, bridge construction, elevated road construction, and water conservancy facility construction, a layer of cement mortar needs to be applied to the wall surface after the main building support or wall construction is completed. In addition, when the roof is uneven, or when it is necessary to enhance the seismic effect to prevent cement mortar from cracking and falling off, or when the load-bearing capacity is permanently enhanced, it is also necessary to spray and apply leveling cement mortar to the roof.

[0003] Currently, mortar application is mostly done manually or with mortar spraying machines. However, existing spraying machines have the following problems during use: 1. When spraying the top wall, it is necessary to manually hold the nozzle for a long time, resulting in low spraying efficiency; 2. If too much cement mortar is sprayed on the top wall, it is easy to fall off, wasting resources; 3. After the cement mortar is sprayed, it is necessary to manually climb onto scaffolding to smooth the top wall, which is time-consuming and labor-intensive. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a mortar spraying machine assembly to solve the problems of existing mortar spraying machines having overly simple structures, requiring manual handling when spraying top walls, causing cement slurry to easily fall off, and being unable to automatically smooth and level the surface after spraying, as well as difficulties in quality control and low construction efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A mortar spraying machine assembly comprises a trolley and a spraying machine body. The spraying machine body is mounted on the trolley, which is in a freely movable position, and performs cement mortar spraying operations using the spraying machine body. A spraying pipe is provided at one end of the spraying machine body, and a spraying head is provided at the end of the spraying pipe. A first adjusting frame, a collection box, and a water storage box are respectively provided on both sides of the spraying machine body. A lifting frame is fixedly connected to the top of the first adjusting frame, and an mounting plate is fixedly installed above the lifting frame. The mounting plate has a sliding mounting and fixing part via a track motor. The fixing part is used to limit and fix the spraying head. A liftable trowel plate is mounted on one side of the fixing part via a second adjusting frame. A collection hopper is connected to the bottom of the fixing part. The bottom of the collection hopper is connected to the collection box via a return pipe. The top inner side of the collection hopper is connected to the water storage box via a water supply pipe, and a water pump is provided on the water supply pipe.

[0007] Preferably, the spray head has two retaining rings on its outer side, forming an annular groove between them. This groove facilitates the fixing of the spray head by the fixing unit, allowing the track motor to drive the spray head to move horizontally.

[0008] Preferably, the fixing part includes a vertically arranged fixing cylinder with openings at both ends and a mounting hole extending through its side. A fixing component for fixing the spray head is installed inside the mounting hole. The fixing component includes a second limiting ring and a first limiting ring located at the inner and outer openings of the mounting hole, respectively. A horizontal fixing post extends through the first and second limiting rings. The inner end of the fixing post corresponds to the groove between the two fixing rings. A handle is provided at the outer end of the fixing post. A movable plate is provided on the fixing post, located between the first and second limiting rings. A fixing spring is sleeved on the fixing post, located between the first limiting ring and the movable plate. In use, pull the fixed column outward by the handle, overcoming the elasticity of the fixed spring, so that the inner end of the fixed column is fully retracted into the mounting hole. Insert the spray head from the bottom of the fixed cylinder. When the groove on the spray head corresponds to the mounting hole, release the handle and use the elasticity of the fixed spring to push the moving plate inward until the inner end of the fixed column is inserted into the groove. The cooperation between the fixed column and the groove fixes the spray head in the fixed cylinder, allowing the spray head to move with the track motor.

[0009] Preferably, the mounting plate has a rectangular mounting groove at its center, and a horizontal connecting groove is formed on the inner side of the mounting groove extending along the width direction of the trolley. The track motor includes a moving track installed inside the mounting groove, and the moving track corresponds to the connecting groove. A moving motor is driven and installed on the moving track. Two connecting blocks are fixedly connected to both sides of the fixed cylinder. One connecting block is fixedly connected to the moving motor, and the end of the other connecting block is provided with a connecting component. The connecting component includes a connecting block inserted into the connecting groove, and a guide wheel is provided at the bottom of the connecting block. There are two second adjusting frames, each vertically fixed above the two connecting blocks. The smearing plate is horizontally installed on the top of the two second adjusting frames, and the smearing plate extends along the length direction of the trolley. With this configuration, through the cooperation of the moving track and the moving motor, and the cooperation of the connecting block and the connecting groove, the moving motor can drive the spray head to move along the moving track through the fixed part, so that the spray head can continuously perform spraying operations along the length direction of the mounting plate.

[0010] Preferably, the first adjusting frame includes four sets of vertically arranged outer cylinders and inner rods. The bottom of the outer cylinder is fixedly connected to the trolley, the bottom of the inner rod is inserted into the outer cylinder, and the top of the inner rod is fixedly connected to the lifting frame. The inner rod has several equidistantly arranged adjusting holes, and the outer cylinder has adjusting bolts that correspond to the adjusting holes. This configuration allows the inner rod to be limited and fixed through the cooperation of the adjusting bolts and adjusting holes, thereby adjusting the overall height of the first adjusting frame, bringing the spray head close to the top of the building, and facilitating further fine adjustment of the spray head's position relative to the top wall using a hydraulic cylinder.

[0011] Preferably, the lifting frame includes a fixed plate fixedly connected to the top of the inner rod, a movable plate above the fixed plate, and guide posts vertically penetrating the movable plate at the four corners of the fixed plate. A vertical hydraulic cylinder is located at the bottom center of the fixed plate, and the piston rod of the hydraulic cylinder is fixedly connected to the bottom of the movable plate through the fixed plate. Both the fixed plate and the movable plate have several communication openings. Horizontal mounting plates are fixedly installed at the four top corners of the movable plate via support rods. In use, the hydraulic cylinder is activated, extending and pushing the movable plate vertically upward along the guide posts. This, in turn, drives the mounting plates to adjust their height via the support rods, further adjusting the height of the spray head.

[0012] Preferably, the top edge of the collecting hopper extends horizontally inward to form an annular rim, and the end of the water pipe extends around the bottom of this rim to form an annular pipe. Several water spray nozzles are installed on the annular pipe, closely attached to the inner wall of the collecting hopper. By providing the rim, the annular pipe can be hidden inside the top of the collecting hopper, preventing cement mortar from blocking it when entering the hopper. The annular pipe and the water spray nozzles allow water to be sprayed onto the inner wall of the collecting hopper, facilitating timely flushing of the cement mortar and preventing it from solidifying inside the collecting hopper.

[0013] Preferably, the collection box is a box structure with an opening on one side. A horizontal perforated plate is fixedly installed in the center of the collection box. A first separation box and a second separation box are respectively pulled out above and below the perforated plate. The bottom of the first separation box has several water holes and is lined with filter yarn. With this configuration, when cement mortar and washing water flow into the collection box through the return pipe, the cement mortar is filtered by the first separation box and the perforated plate. The filtered cement mortar remains in the first separation box, while the filtered water is stored in the second separation box, facilitating the dry and wet separation of the cement mortar.

[0014] Preferably, the second adjustment frame has the same structure as the first adjustment frame.

[0015] Preferably, the edge of the upper surface of the sizing plate near the front end of the trolley has a rounded chamfer. This design allows the sizing plate to push all the uneven cement mortar layer into the top of the sizing plate for smoothing during sizing, resulting in a more uniform smoothing process.

[0016] This invention provides a mortar spraying machine assembly, which has the following beneficial effects:

[0017] 1. The mortar spraying machine assembly of the present invention fixes the spraying head of the spraying machine body to the connecting block through the fixing part. The height of the spraying head can be adjusted by the cooperation of the first adjusting frame, the hydraulic cylinder and the lifting frame, so that it is close to the top wall of the building. At the same time, the track motor can drive the spraying head to move horizontally along the length of the mounting plate through the connecting block, so that the spraying head can be evenly sprayed on the top wall of the building without manual handling, which greatly improves the spraying efficiency.

[0018] 2. During the spraying process, the mortar spraying machine assembly of the present invention uses a collection bucket to collect the cement mortar that falls due to excessive spraying, and uses a water storage box, water pump and water pipe to flush the cement mortar in the collection bucket so that it can flow along the return pipe into the collection box for collection and reuse, thus saving resources.

[0019] 3. The mortar spraying machine assembly of the present invention can adjust the height of the trowel plate through the second adjustment frame, so that when the spraying head moves forward with the trolley after spraying the mortar, the trowel plate can be used to smooth the sprayed cement mortar, eliminating the need for manual smoothing. This allows spraying and smoothing to be carried out simultaneously, saving time and improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall appearance of the mortar spraying machine assembly of the present invention;

[0021] Figure 2 for Figure 1 The right view;

[0022] Figure 3 for Figure 1 Top view;

[0023] Figure 4 for Figure 1 Internal structure diagram;

[0024] Figure 5 This is a structural schematic diagram of the lifting frame, mounting plate, and fixing part of the present invention;

[0025] Figure 6 for Figure 5 Top view of the exterior;

[0026] Figure 7This is a schematic diagram of the mounting plate, fixing part, and spray head of the present invention;

[0027] Figure 8 for Figure 7 A magnified view of a portion of area A;

[0028] Figure 9 This is a schematic diagram of the installation of the spray head of the present invention;

[0029] Figure 10 This is a top view of the collection bucket of the present invention;

[0030] Figure 11 This is a schematic diagram of the internal structure of the collection box of the present invention.

[0031] In the picture:

[0032] 1. Trolley; 2. Sprayer body; 201. Spray pipe; 202. Spray head; 2021. Fixing ring; 3. First adjusting frame; 301. Outer cylinder; 302. Inner rod; 303. Adjusting hole; 304. Adjusting bolt; 4. Lifting frame; 401. Fixing plate; 402. Movable plate; 403. Guide column; 404. Support rod; 405. Connecting port; 5. Mounting plate; 501. Mounting groove; 502. Connecting groove; 6. Track motor; 601. Moving track; 602. Moving motor; 7. Fixing part; 701. Fixing cylinder; 702. Fixing assembly; 7021. First limiting ring; 7022, Second limiting ring; 7023, Fixed column; 7024, Moving plate; 7025, Fixed spring; 7026, Handle; 703, Mounting hole; 8, Connecting assembly; 801, Connecting block; 802, Guide wheel; 9, Collection hopper; 901, Connecting rod; 10, Collection box; 1001, Perforated plate; 1002, First separation box; 1003, Second separation box; 11, Water storage box; 12, Water pump; 13, Return pipe; 14, Water supply pipe; 1401, Annular pipe; 1402, Spray head; 15, Hydraulic cylinder; 16, Connecting block; 17, Second adjusting frame; 18, Smoothing plate. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figure 1-4The present invention provides a mortar spraying machine assembly, the purpose of which is to realize the machine spraying of cement mortar by freely moving the position, thereby replacing manual operation.

[0036] The mortar spraying machine assembly consists of a trolley 1 and a spraying machine body 2. The trolley 1 is equipped with the spraying machine body 2. The trolley 1 is designed to move freely and is suitable for spraying cement mortar in different locations. The spraying machine body 2 is designed to automatically and evenly spray cement mortar onto the wall, replacing manual construction work and realizing the entire process from spraying to smoothing.

[0037] In terms of specific structure, the spraying machine body 2 has a spraying pipe 201 at one end, and a spraying head 202 at the other end. The spraying machine body 2 has a first adjusting frame 3, a collection box 10, and a water storage box 11 on both sides. The top of the first adjusting frame 3 is fixedly connected to a lifting frame 4, and a mounting plate 5 is fixedly installed above the lifting frame 4. The mounting plate 5 has a sliding fixing part 7 that is mounted on it via a track motor 6. The fixing part 7 is used to limit and fix the spraying head 202. A liftable smearing plate 18 is installed on one side of the fixing part 7 via a second adjusting frame 17. The bottom of the fixing part 7 is connected to a collection hopper 9. The bottom of the collection hopper 9 is connected to the collection box 10 via a return pipe 13. The top inner side of the collection hopper 9 is connected to the water storage box 11 via a water supply pipe 14, and a water pump 12 is installed on the water supply pipe 14.

[0038] Example 2

[0039] Please see Figure 9 Based on Embodiment 1, two fixing rings 2021 are provided on the outer side of the spray head 202, and an annular groove is formed between the two fixing rings 2021. By providing the groove, it is convenient for the fixing part 7 to fix the spray head 202, so that the track motor 6 can drive the spray head 202 to move horizontally.

[0040] Please see Figure 5 and Figure 9 The aforementioned fixing part 7 includes a vertically arranged fixing cylinder 701 with openings at both ends and a mounting hole 703 extending through the side of the fixing cylinder 701.

[0041] A fixing assembly 702 for fixing the spray head 202 is installed inside the mounting hole 703. The fixing assembly 702 includes a second limiting ring 7022 and a first limiting ring 7021 located at the inner and outer openings of the mounting hole 703, respectively. A horizontal fixing post 7023 is disposed through the first limiting ring 7021 and the second limiting ring 7022. The inner end of the fixing post 7023 is correspondingly engaged with the groove between the two fixing rings 2021.

[0042] In addition, a handle 7026 is provided at the outer end of the fixed post 7023, and a movable plate 7024 is provided on the fixed post 7023. The movable plate 7024 is located between the first limiting ring 7021 and the second limiting ring 7022, and a fixing spring 7025 is sleeved on the fixed post 7023. The fixing spring 7025 is located between the first limiting ring 7021 and the movable plate 7024.

[0043] In use, the fixing post 7023 can be pulled outward by the handle 7026, overcoming the elastic force of the fixing spring 7025, so that the inner end of the fixing post 7023 is fully retracted into the mounting hole 703. The spray head 202 is then inserted from the bottom of the fixing cylinder 701, and the spray tube 201 is passed around the side of the collection hopper 9. When the groove on the spray head 202 corresponds to the mounting hole 703, the handle 7026 is released, and the moving plate 7024 is pushed inward by the elastic force of the fixing spring 7025 until the inner end of the fixing post 7023 is inserted into the groove. The spray head 202 is fixed in the fixing cylinder 701 by the cooperation of the fixing post 7023 and the groove, so that the spray head 202 can move with the track motor 6.

[0044] Please see Figure 6-8 The mounting plate 5 has a rectangular mounting groove 501 at its center. A horizontal connecting groove 502 is formed on the inner side of the mounting groove 501 extending along the width direction of the trolley 1. The track motor 6 includes a moving track 601 mounted inside the mounting groove 501, with the moving track 601 corresponding to the connecting groove 502. The moving track 601 is driven by the moving motor 602. Two connecting blocks 16 are fixedly connected to both sides of the fixing cylinder 701. In a preferred embodiment, there can be one connecting block 16, with the fixing cylinder 17 embedded in the center of the connecting block 16.

[0045] In the design of the two connecting blocks 16, one connecting block 16 is fixedly connected to the moving motor 602, and the end of the other connecting block 16 is provided with a connecting component 8. The connecting component 8 includes a connecting block 801 inserted into the connecting groove 502. The bottom of the connecting block 801 is provided with a guide wheel 802. There are two second adjusting frames 17, which are respectively vertically fixed above the two connecting blocks 16. The smearing plate 18 is horizontally installed on the top of the two second adjusting frames 17, and the smearing plate 18 extends along the length of the trolley 1.

[0046] With this configuration, the cooperation between the moving track 601 and the moving motor 602, as well as the cooperation between the connecting block 801 and the connecting groove 502, allows the moving motor 602 to drive the spray head 202 and the trowel plate 18 to move along the moving track 601 via the fixing part 7. This enables the spray head 202 to continuously perform spraying operations along the length of the mounting plate 5. Furthermore, the trowel plate 18 can smooth the sprayed cement mortar, ultimately resulting in a smooth and even cement-coated wall surface.

[0047] In this embodiment, the first adjusting frame 3 includes four sets of vertically arranged outer cylinders 301 and inner rods 302. The bottom of the outer cylinder 301 is fixedly connected to the trolley 1, the bottom of the inner rod 302 is inserted into the outer cylinder 301, and the top of the inner rod 302 is fixedly connected to the lifting frame 4. Several equidistant adjusting holes 303 are provided on the inner rod 302, and adjusting bolts 304 corresponding to the adjusting holes 303 are provided on the outer cylinder 301. With this arrangement, the inner rod 302 can be limited and fixed by the cooperation of the adjusting bolts 304 and the adjusting holes 303, thereby adjusting the overall height of the first adjusting frame 3, so that the spray head 202 is close to the top of the building, which facilitates further fine adjustment of the position of the spray head 202 on the top wall by the hydraulic cylinder 15.

[0048] In this embodiment, the lifting frame 4 includes a fixed plate 401 fixedly connected to the top of the inner rod 302. A movable plate 402 is provided above the fixed plate 401, and guide posts 403 that penetrate the movable plate 402 are provided at the four corners of the fixed plate 401. A vertical hydraulic cylinder 15 is provided at the bottom center of the fixed plate 401. The piston rod of the hydraulic cylinder 15 penetrates the fixed plate 401 and is fixedly connected to the bottom of the movable plate 402. Several connecting ports 405 are provided on both the fixed plate 401 and the movable plate 402. By providing connecting ports 405, it is convenient for the spray pipe 201, return pipe 13, and water supply pipe 14 to pass through them, avoiding the pipes from getting tangled on the outside of the device. Horizontal mounting plates 5 are fixedly installed at the four corners of the top of the movable plate 402 by support rods 404. When in use, the hydraulic cylinder 15 is activated, and the hydraulic cylinder 15 extends, pushing the movable plate 402 to move vertically upward along the guide column 403. Then, the mounting plate 5 is raised and lowered through the support rod 404, further adjusting the height of the spray head 202.

[0049] Please see Figure 10 The top edge of the collecting hopper 9 extends horizontally inward to form an annular rim. The end of the water pipe 14 extends around the bottom of this rim to form an annular pipe 1401. Several water spray heads 1402 are provided on the annular pipe 1401, which are closely attached to the inner wall of the collecting hopper 9. By setting the rim, the annular pipe 1401 can be hidden in the inner top of the collecting hopper 9, preventing cement mortar from blocking the annular pipe 1401 when it enters the collecting hopper 9. Water can be sprayed onto the inner wall of the collecting hopper 9 through the annular pipe 1401 and the water spray heads 1402, which facilitates timely washing of cement mortar and prevents it from solidifying inside the collecting hopper 9.

[0050] Please see Figure 11The collection box 10 is a box structure with an opening on one side. A horizontal perforated plate 1001 is fixedly installed in the center of the collection box 10. A first separation box 1002 and a second separation box 1003 are respectively pulled out from the top and bottom of the perforated plate 1001. The bottom of the first separation box 1002 has several water flow holes and is covered with filter yarn. With this configuration, when cement mortar and washing water flow into the collection box 10 through the return pipe 13, the cement mortar is filtered by the first separation box 1002, the filter yarn, and the perforated plate 1001. The filtered cement mortar remains in the first separation box 1002, while the filtered water is stored in the second separation box 1003, which facilitates the dry and wet separation of the cement mortar.

[0051] In this embodiment, the second adjustment frame 17 has the same structure as the first adjustment frame 3. By adjusting the height of the second adjustment frame 17, the height of the smearing plate 18 can be adjusted.

[0052] In this embodiment, the edge of the upper surface of the trowel 18 near the front end of the trolley 1 has a rounded chamfer. This design allows the trowel 18 to push all the uneven cement mortar layer onto the top of the trowel 18 for smoothing during troweling, resulting in a more uniform smoothing process.

[0053] Example 3

[0054] This embodiment describes a cement spraying process, which is implemented using a mortar spraying machine assembly. The spraying process includes the following steps:

[0055] S1. Base layer inspection: Clean the dust, loose material, release agent, dirt and oil stains from the base surface of the area to be constructed. Fill in the joints where the mortar is not full, the joints under the beams and slabs, and small areas of honeycomb, pitting, and exposed reinforcement with lightweight plastering mortar. Chisel the protruding parts of the wall surface to make them flat.

[0056] S2. Apply hot-dip galvanized steel wire mesh at the junctions of different wall materials, masonry wall structural columns, ring beams, and water and electrical cable trenches. The steel wire mesh should be 10*10*0.7mm, with an overlap of no less than 100mm on each side at different material locations. The masonry walls in stairwells and anterooms should be fully covered with No. 16 steel wire mesh, with a hole spacing of no more than 20*20mm. The steel wire mesh should be flat, continuous, firm, and free from deformation or arching.

[0057] S3. Interface treatment: Rinse the wall surface to remove dust to ensure better adhesion between the interface agent and the wall. When applying the interface agent, mix it with water according to the product instructions and apply it evenly to the wall with a roller. Alternatively, an airless sprayer can be used to spray it onto the wall. For concrete walls, aluminum formwork concrete, wood formwork concrete, and other base surfaces, a two-component interface mortar should be used for base treatment before plastering. If an emulsion-type interface agent is applied first, it is necessary to wait for the interface agent to dry before applying it with a patting or roller coating to roughen the surface before plastering. Otherwise, it may cause sagging, resulting in hollowing and cracking.

[0058] S4. Screwing: Based on the main structural control line, set up a laser level and make it parallel to the screed surface. Then, apply cement mortar to the wall surface and repeatedly smooth it with an aluminum alloy straightedge. Adjust the verticality of the aluminum alloy straightedge so that its outer surface is aligned with the infrared light. After the screed is completed, use a straightedge to calibrate the flatness of each screed. The distance between vertical screeds should not exceed 1.2m. Use special screed mortar when screeding.

[0059] S5. Moisten the wall surface with water. Moisten the wall surface with water several times 1-2 days in advance to ensure good setting and hardening conditions for the plaster layer, but there should be no floating water on the wall surface.

[0060] S6. Equipment installation and commissioning: Connect the water inlet of the sprayer body in this device through a water pipe, and then sequentially vent, adjust the water volume, and wet the spray pipe.

[0061] ① Exhaust air: Turn on the water pump motor switch and tighten the flow valve on the sprayer body to prevent water from flowing into the mixing area. Then open the drain valve to expel the air in the pipe. After the drain valve sprays high-pressure water for 2 seconds, close the drain valve. At this time, the air in the pipe has been completely expelled.

[0062] ② Adjust the water volume, turn on the water pump motor switch, then observe the flow meter status of the spraying machine body, adjust the water volume according to the consistency of the material, and control the water volume at 30% to 35%;

[0063] ③ Lubricate the spray pipe. Lightweight plastering mortar is lubricated with clean water. The clean water is poured into one end of the spray pipe and flows out from the other end. After lubricating the pipe, connect the spray pipe to the discharge port of the spraying machine body.

[0064] S7. Spraying and smoothing: This device is used to spray the side walls or top of the house, keeping the spray nozzle 10-20cm away from the wall surface, and smoothing it with a trowel while spraying.

[0065] When operating the mortar spraying machine assembly, cement mortar needs to be poured into the spraying machine body 2, and cleaning water needs to be poured into the water storage box. The construction personnel hold the spray head 202 to perform general spraying operations on the side wall and manually smooth it.

[0066] When it is necessary to spray paint on the top wall of the building, push the device to the appropriate position using the trolley 1, pull the fixing post 7023 outward using the handle 7026, and overcome the elasticity of the fixing spring 7025, so that the inner end of the fixing post 7023 is fully retracted into the mounting hole 703. Insert the spray head 202 from the bottom of the fixing cylinder 701. When the groove on the spray head 202 corresponds to the mounting hole 703, release the handle 7026, and use the elasticity of the fixing spring 7025 to push the moving plate 7024 inward until the inner end of the fixing post 7023 is inserted into the groove. The spray head 202 is fixed in the fixing cylinder 701 by the cooperation of the fixing post 7023 and the groove.

[0067] The height of the trowel plate 18 is adjusted by the second adjustment bracket 17 so that when the spray head 202 reaches the optimal spraying distance from the top wall, the trowel plate 18 can just smooth the cement mortar on the top wall.

[0068] By adjusting the first adjustment frame 3, the lifting frame 4, together with the spray head 202 and the trowel plate 18, is raised to a position close to the top wall of the building to achieve initial adjustment. The hydraulic cylinder 15 is then activated, which pushes the movable plate 402 to continue moving up and down until the spray head 202 is adjusted to the optimal spraying height, thus completing the precise adjustment. At the same time, the spraying machine body 2 and the track motor 6 are activated. The spraying machine body 2 sprays cement mortar onto the top wall of the building through the spray head 202, while the track motor 6 drives the spray head 202 and the trowel plate 18 to move horizontally along the length of the mounting plate 5 through the fixing part 7. During the movement, the spray head 202 sprays the top of the building, and after spraying, the trowel plate 18 smooths the sprayed cement mortar.

[0069] Since the coating is applied to the top walls of the building, excess cement mortar will fall off under gravity. This is because only a very thin layer of cement mortar is needed when spraying the top walls; the thickness of the cement mortar is generally less than or equal to 1 cm. The fallen cement mortar is collected by the collection hopper 9. At this time, the water pump 12 is started, and the water pump 12 sends the cleaning water in the water storage box 11 to the collection hopper 9. The water is then sprayed onto the inner wall of the collection hopper 9 through the annular pipe 1401 and the water nozzle 1402, washing away the cement mortar that has fallen into the collection hopper 9. The water then flows into the collection box 10 along the return pipe 13, and the recovered cement mortar is separated into wet and dry parts by the perforated plate 1001 and the first separation box 1002 for continued use.

[0070] When the track motor 6 drives the spray head 202 from one end of the mounting plate 5 to the other end, it means that the top wall at that position has been sprayed. Stop the spraying machine body 2 and reset the spray head 202 and the trowel plate 18 by driving the track motor 6.

[0071] Then, by pushing the trolley 1 to other construction areas, the trolley 1 drives the device forward to the next spraying position. The spraying machine body 2 and the track motor 6 are started again, and the above operation is repeated to spray and smooth the top wall of the building in sequence until all spraying is completed.

[0072] After the spraying is completed, the spraying machine can be stopped according to actual needs. The track motor 6 can be used to drive the trowel 18 to repeatedly smooth the top wall until the smoothing requirement is met.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mortar spraying machine assembly, characterized in that: Its components include a trolley (1) and a spraying machine body (2). The spraying machine body (2) is mounted on the trolley (1). A spraying pipe (201) is provided at the end of the spraying machine body (2), and a spraying head (202) is provided at the end of the spraying pipe (201). A first adjusting frame (3), a collection box (10), and a water storage box (11) are respectively provided on both sides of the spraying machine body (2). A lifting frame (4) is fixedly connected to the top of the first adjusting frame (3). An mounting plate (5) is fixedly installed above the lifting frame (4). A rail is provided on the mounting plate (5). The motor (6) is slidably mounted with a fixing part (7), which is used to limit and fix the spray head (202). A liftable smearing plate (18) is mounted on one side of the fixing part (7) through a second adjusting frame (17). A collection hopper (9) is connected to the bottom of the fixing part (7). The bottom of the collection hopper (9) is connected to the collection box (10) through a return pipe (13). The top inner side of the collection hopper (9) is connected to the water storage box (11) through a water supply pipe (14), and a water pump (12) is installed on the water supply pipe (14).

2. The mortar spraying machine assembly according to claim 1, characterized in that: Two fixing rings (2021) are provided on the outside of the spray head (202), and an annular groove is formed between the two fixing rings (2021).

3. The mortar spraying machine assembly according to claim 2, characterized in that: The fixing part (7) includes a vertically arranged fixing cylinder (701), which has openings at both ends and a mounting hole (703) extending through the side of the fixing cylinder (701). A fixing component (702) for fixing the spray head (202) is installed inside the mounting hole (703). The fixing component (702) includes a second limiting ring (7022) and a first limiting ring (7021) located at the inner and outer openings of the mounting hole (703), respectively. A horizontal fixing post (7021) extends through the first limiting ring (7021) and the second limiting ring (7022). 023), the inner end of the fixing post (7023) corresponds to the groove between the two fixing rings (2021), the outer end of the fixing post (7023) is provided with a handle (7026), and a movable plate (7024) is provided on the fixing post (7023). The movable plate (7024) is located between the first limiting ring (7021) and the second limiting ring (7022), and a fixing spring (7025) is sleeved on the fixing post (7023). The fixing spring (7025) is located between the first limiting ring (7021) and the movable plate (7024).

4. The mortar spraying machine assembly according to claim 3, characterized in that: The mounting plate (5) has a rectangular mounting groove (501) at its center. A horizontal connecting groove (502) is provided on the inner side of the mounting groove (501) extending along the width direction of the trolley (1). The track motor (6) includes a moving track (601) installed inside the mounting groove (501), and the moving track (601) corresponds to the connecting groove (502). A moving motor (602) is driven and installed on the moving track (601). Two connecting blocks (16) are fixedly connected to both sides of the fixed cylinder (701), one of which is... 16) is fixedly connected to the mobile motor (602), and the end of another connecting block (16) is provided with a connecting component (8). The connecting component (8) includes a connecting block (801) inserted into the connecting groove (502). The bottom of the connecting block (801) is provided with a guide wheel (802). There are two second adjustment frames (17) and they are respectively vertically fixed above the two connecting blocks (16). The smearing plate (18) is horizontally installed on the top of the two second adjustment frames (17) and the smearing plate (18) extends along the length direction of the trolley (1).

5. The mortar spraying machine assembly according to claim 1, characterized in that: The first adjustment frame (3) includes four sets of vertically arranged outer cylinders (301) and inner rods (302). The bottom of the outer cylinder (301) is fixedly connected to the trolley (1). The bottom of the inner rod (302) is inserted into the outer cylinder (301), and the top of the inner rod (302) is fixedly connected to the lifting frame (4). The inner rod (302) is provided with a plurality of equidistant adjustment holes (303). The outer cylinder (301) is provided with adjustment bolts (304) that correspond to the adjustment holes (303).

6. The mortar spraying machine assembly according to claim 4, characterized in that: The lifting frame (4) includes a fixed plate (401) fixedly connected to the top of the inner rod (302). A movable plate (402) is provided above the fixed plate (401). Guide columns (403) that penetrate the movable plate (402) are provided at the four corners of the fixed plate (401). A vertical hydraulic cylinder (15) is provided at the bottom center of the fixed plate (401). The piston rod of the hydraulic cylinder (15) penetrates the fixed plate (401) and is fixedly connected to the bottom of the movable plate (402). Several connecting holes (405) are provided on both the fixed plate (401) and the movable plate (402). Horizontal mounting plates (5) are fixedly installed at the four corners of the top of the movable plate (402) by support rods (404).

7. The mortar spraying machine assembly according to claim 1, characterized in that: The top edge of the collecting hopper (9) extends horizontally inward to form an annular rim. The end of the water pipe (14) extends around the bottom of the rim to form an annular pipe (1401). Several spray nozzles (1402) are provided on the annular pipe (1401) and are close to the inner wall of the collecting hopper (9).

8. The mortar spraying machine assembly according to claim 1, characterized in that: The collection box (10) is a box structure with an opening on one side. A horizontal perforated plate (1001) is fixedly installed in the center of the collection box (10). A first separation box (1002) and a second separation box (1003) are respectively pulled out on the upper and lower sides of the perforated plate (1001). The bottom of the first separation box (1002) is provided with several water holes, and the bottom of the first separation box (1002) is covered with filter yarn.

9. The mortar spraying machine assembly according to claim 1, characterized in that: The second adjustment frame (17) has the same structure as the first adjustment frame (3). The edge of the upper surface of the smearing plate (18) near the front end of the trolley (1) has a rounded chamfer.

10. A mortar spraying process, characterized in that: The spraying process is implemented using any of the mortar spraying machine assemblies described in claims 1-9, and the spraying process includes the following steps: S1. Base layer inspection: Clean the dust, loose material, release agent, dirt and oil stains from the base surface of the area to be constructed. Fill in the joints where the mortar is not full, the joints under the beams and slabs, and small areas of honeycomb, pitting, and exposed reinforcement with lightweight plastering mortar. Chisel the protruding parts of the wall surface to make them flat. S2. Apply hot-dip galvanized steel wire mesh at the junctions of different wall materials, masonry wall structural columns, ring beams, and water and electrical cable trenches. The steel wire mesh should be 10*10*0.7mm, with an overlap of no less than 100mm on each side at different material locations. The masonry walls in stairwells and anterooms should be fully covered with No. 16 steel wire mesh, with a hole spacing of no more than 20*20mm. The steel wire mesh should be flat, continuous, firm, and free from deformation or arching. S3. Interface treatment: Rinse the wall surface to remove dust to ensure better adhesion between the interface agent and the wall. When applying the interface agent, mix it with water according to the product instructions and apply it evenly to the wall with a roller. Alternatively, an airless sprayer can be used to spray it onto the wall. For concrete walls, aluminum formwork concrete, wood formwork concrete, and other base surfaces, a two-component interface mortar should be used for base treatment before plastering. If an emulsion-type interface agent is applied first, it is necessary to wait for the interface agent to dry before applying it with a patting or roller coating to roughen the surface before plastering. Otherwise, it may cause sagging, resulting in hollowing and cracking. S4. Screwing: Based on the main structural control line, set up a laser level and make it parallel to the screed surface. Then, apply cement mortar to the wall surface and repeatedly smooth it with an aluminum alloy straightedge. Adjust the verticality of the aluminum alloy straightedge so that its outer surface is aligned with the infrared light. After the screed is completed, use a straightedge to calibrate the flatness of each screed. The distance between vertical screeds should not exceed 1.2m. Use special screed mortar when screeding. S5. Moisten the wall surface with water. Moisten the wall surface with water several times 1-2 days in advance to ensure good setting and hardening conditions for the plaster layer, but there should be no floating water on the wall surface. S6. Equipment installation and commissioning: Connect the water inlet of the sprayer body in this device through a water pipe, and then sequentially vent, adjust the water volume, and wet the spray pipe. ① Exhaust air: Turn on the water pump motor switch and tighten the flow valve on the sprayer body to prevent water from flowing into the mixing area. Then open the drain valve to expel the air in the pipe. After the drain valve sprays high-pressure water for 2 seconds, close the drain valve. At this time, the air in the pipe has been completely expelled. ② Adjust the water volume, turn on the water pump motor switch, then observe the flow meter status of the spraying machine body, adjust the water volume according to the consistency of the material, and control the water volume at 30% to 35%; ③ Lubricate the spray pipe. Lightweight plastering mortar is lubricated with clean water. The clean water is poured into one end of the spray pipe and flows out from the other end. After lubricating the pipe, connect the spray pipe to the discharge port of the spraying machine body. S7. Spraying and smoothing: This device is used to spray the side walls or top of the house, keeping the spray nozzle 10-20cm away from the wall surface, and smoothing it with a trowel while spraying.

Images