Building outer wall spraying construction process

Abstract

The invention relates to the technical field of outer wall construction, and provides a building outer wall spraying construction technology which comprises the steps that s1, surface treatment is conducted; s2, base layer treatment; s3, dividing construction blocks; s4, spraying construction; and s5, finished product maintenance. Wherein the step s3 comprises the steps that s31, the size of the wall surface is measured, first partition treatment is carried out according to the overall size of the wall surface, and multiple units to be sprayed are separated out; s32, uniformly selecting a plurality of temperature measuring points in the to-be-sprayed unit obtained by the first partition treatment, performing temperature detection on each temperature measuring point in the same to-be-sprayed unit, and performing second partition treatment on the wall surface according to the measured temperature data, so that the temperature difference range between the temperatures measured by the temperature measuring points in the same to-be-sprayed unit is 0-3 DEG C; and s33, marking the boundary of each unit to be sprayed on the wall surface by using a marking tool. The influence of the temperature difference of different parts of the outer wall of the building on the spraying construction quality can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of exterior wall construction, and in particular to a spraying construction process for exterior walls of buildings. Background Art

[0002] Spray coating is a widely used technique for exterior wall decoration and protection. Traditional exterior wall construction methods often rely on manual brushing or roller coating. These methods are not only inefficient but also significantly impact the quality of the finish, often leading to uneven coating and inconsistent thickness. With the continuous development of the construction industry and technological advancements, spray coating has emerged. Using specialized spray equipment, efficient and uniform coating can be achieved, significantly improving both construction quality and efficiency.

[0003] Exterior wall spray coating not only provides aesthetic appeal but also plays a crucial role in protecting the walls and extending the lifespan of buildings. However, a significant challenge during spray coating construction is temperature gradients. Temperature gradients refer to significant differences in temperature between different parts of a wall surface. For example, in a high-rise building, the upper floors receive more solar radiation and experience higher temperatures, while lower floors, potentially affected by reflections from the ground and shadows, experience lower temperatures. This difference can lead to inconsistent drying rates for the paint, affecting the coating's thickness and quality. Summary of the Invention

[0004] In order to improve the impact of temperature differences in different parts of a building's exterior wall on the quality of spraying construction, the present application provides a building exterior wall spraying construction process.

[0005] The present application provides a construction process for spraying exterior walls of a building, comprising the following steps: s1. Surface treatment; s2, grass-roots processing; s3. Construction area division; s31. Measure the size of the wall, perform the first partitioning process according to the overall size of the wall, and separate the units to be sprayed; s32. Evenly select multiple temperature measuring points within the unit to be sprayed obtained by the first partitioning process, use a temperature measuring device to detect the temperature of each temperature measuring point within the same unit to be sprayed, and perform a second partitioning process on the wall surface based on the measured temperature data, so that the temperature difference range between the temperature measuring points within the same unit to be sprayed is: 0-3 degrees Celsius; s33. Use a marking tool to mark the boundary lines of each unit to be sprayed on the wall. Use a level ruler or spirit level to ensure that the boundary lines are straight lines. s4. Spraying construction: Use spraying equipment to spray multiple units to be sprayed. When spraying, spray in descending order according to the temperature of the units to be sprayed. Before spraying, only the unit to be sprayed currently is exposed, and the rest of the units to be sprayed on the wall are shielded. s5. Maintenance of finished products.

[0006] By adopting the above technical solution, the spray coating of the building's exterior walls can be carried out uniformly in different temperature zones, effectively solving the problem of inconsistent paint drying speeds caused by temperature gradient changes, and improving the thickness uniformity and overall quality of the coating. In particular, during spraying, by detecting the temperature of the units to be sprayed and spraying in descending order, as well as masking the unapplied units to be sprayed, the consistency of the coating in each area is further ensured, thereby significantly improving the spraying effect and construction quality. Finally, the finished wall surface is subjected to finished product maintenance to ensure the full curing of the coating after spraying, thereby improving the overall quality of the exterior wall spraying construction.

[0007] Optionally, step s1 includes: s11. Use a level to check the flatness of the wall and mark the concave and convex parts; s12. Repair holes or obvious depressions with cement mortar, and use exterior wall putty to fill in minor depressions; s13. After the exterior wall putty is dry, use a grinding wheel to grind the obvious protruding parts and the repaired parts; s14. Remove any sticky matter and dust from the wall, and sprinkle water to moisten the wall.

[0008] By adopting the above technical solution, a spirit level is used to check the flatness of the wall surface and mark the concave and convex parts, so that the locations that need to be repaired can be accurately determined; holes or obvious depressions are repaired with cement mortar, and less obvious depressions are repaired with exterior wall putty, which can significantly improve the flatness of the wall surface; after the exterior wall putty dries, obvious protrusions and repaired parts are polished with a grinding wheel machine to further improve the flatness of the wall surface; wall adhesions and dust are removed and the wall surface is moistened with water, providing a clean and moist surface for subsequent construction, which is conducive to better adhesion of the paint to the wall surface.

[0009] Optionally, step s2 includes: s21. Add water to the putty powder in proportion and stir evenly with an electric tool to ensure that there are no particles after the putty powder and water are mixed; s22. Apply putty on the wall to form a base layer, and use a putty knife to smooth the putty; wherein, the thickness of the base layer is controlled to be 1.5-2mm. After the putty is dry, use sandpaper to smooth the base layer; s23. Carry out watering maintenance on the base layer at least twice, and the time interval between each maintenance should be at least 4 hours.

[0010] By adopting the above technical solution, the putty powder and water are stirred with an electric tool to mix the two evenly, ensuring that the putty powder and water are fully mixed, avoiding the formation of particles, and improving the flatness and smoothness of the base surface; the base thickness is controlled to 1.5-2mm, and after polishing, the flatness of the base is further enhanced; through more than two watering maintenance measures, the strength and stability of the base are guaranteed, thereby improving the quality and durability of the entire exterior wall spray construction.

[0011] Optionally, in step s31, the wall surface is partitioned for the first time along the vertical direction, and a plurality of units to be sprayed are evenly divided according to the overall height of the wall surface.

[0012] By adopting the above technical solution, the wall surface is partitioned for the first time in the vertical direction, and a plurality of units to be sprayed are evenly divided according to the overall height of the wall surface, so that the height of each unit to be sprayed is the same, which is convenient for the subsequent second partitioning process and further precise adjustment of the units to be sprayed according to temperature information.

[0013] Optionally, in step s4, a partition shielding mechanism is used to shield the remaining units to be sprayed on the wall surface; The partition shielding mechanism includes a movable frame, an upper shielding assembly and a lower shielding assembly arranged on the movable frame, the upper shielding assembly includes a first slide and a first shielding barrier connected to one side of the first slide, the first slide is slidably arranged on the movable frame in a vertical direction, the end of the first shielding barrier away from the first slide is connected to the upper end of the movable frame, and the first shielding barrier is retractable; The lower shielding assembly includes a second slide and a second shielding barrier. The first slide is slidably arranged on the movable frame along the vertical direction. The second shielding barrier is connected to the side of the second slide away from the first slide. The end of the second shielding barrier away from the first slide is connected to the lower end of the movable frame. The second shielding barrier is retractable.

[0014] By adopting this technical solution, the partitioned shielding mechanism can effectively shield the remaining wall sections to be painted, preventing paint contamination of non-painted sections, thereby improving construction quality and efficiency. The mobile frame, coupled with vertically sliding first and second slides, and retractable first and second shielding barriers, allows for flexible adjustment of the shielding range, ensuring precise and convenient masking operations.

[0015] Optionally, the first shielding barrier and the second shielding sheet are both made of folded sheet material.

[0016] By adopting the above technical solution, the first shielding barrier and the second shielding barrier are both made of foldable sheet material to realize the telescopic function of the first shielding barrier and the second shielding barrier, and facilitate the rapid unfolding and folding of the first shielding barrier and the second shielding barrier, thereby improving construction efficiency and ensuring the shielding effect, avoiding the paint from being accidentally sprayed onto the unconstructed area during the spraying process, and ensuring the coating quality.

[0017] Optionally, an infrared thermometer is further provided on the mobile rack, and the infrared thermometer slides on the mobile rack in a vertical direction.

[0018] By adopting the above technical solution, an infrared thermometer that can slide in the vertical direction is set on the mobile rack, which can monitor the temperature of the temperature measuring points in each unit to be sprayed on the wall in step S32 to facilitate the second zoning process.

[0019] Optionally, in step s4, the spraying process specifically includes: S41, use a spray gun for spraying. Adjust the pressure and flow of the spray gun according to the viscosity of the paint and construction requirements. The air pressure range of the spray gun is 0.3-0.6MPa, and the flow range is 200-350ml / min. s42. Spray each unit to be sprayed evenly from top to bottom or from left to right, control the movement speed of the spray gun to ensure uniform coating thickness on the unit to be sprayed; after spraying one unit to be sprayed, give appropriate drying time according to the drying requirements of the paint before continuing to spray the next unit to be sprayed.

[0020] By adopting this technical solution, controlling the pressure and flow rate during the spraying process ensures a more even distribution of the paint on each unit to be sprayed, improving coating quality and spraying efficiency. During spraying, the air pressure and flow rate of the spray gun are adjusted according to the viscosity of the paint and the application requirements to achieve a uniform coating thickness. At the same time, appropriate drying time is allowed after spraying each unit to be sprayed, further improving the quality and stability of the coating.

[0021] Optionally, step s42 further includes adjusting the position and angle of the spray gun before starting the spray gun, keeping the distance between the spray gun and the wall between 50-60 cm and keeping the angle between the spray gun and the wall between 85-90°.

[0022] By adopting the above technical solution, the distance and angle between the spray gun and the wall are ensured to be within the optimal range, the accuracy and efficiency of the spraying operation are improved, the coating is made more uniform, and the waste of paint and coating quality problems caused by improper spraying distance and angle are avoided.

[0023] In summary, this application has at least one of the following beneficial effects: 1. Through fine temperature zoning treatment of the wall surface, the temperature difference within the same spray unit is controlled within the range of 2-5 degrees Celsius, thereby improving the uniformity and quality of the coating; 2. During spraying, the temperature of the unit to be sprayed is adjusted from high to low, ensuring a more consistent drying speed of the coating in different temperature areas and solving the coating quality problem caused by temperature gradient changes. 3. The use of masking technology avoids contamination of units to be sprayed that are not currently under construction, improves spraying accuracy and reduces the workload of subsequent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a flow chart of the spraying construction process for the exterior wall of a building according to an embodiment of the present application; Figure 2 2 is a front view structural diagram of the partition shielding mechanism in an embodiment of the present application; Explanation of the accompanying drawings: 1. Mobile rack; 11. Mobile base; 12. Mounting rod; 13. Vertical slide rail; 2. Upper shielding assembly; 21. First slide; 22. First shielding barrier; 23. First connecting bar; 3. Lower shielding assembly; 31. Second slide; 32. Second shielding barrier; 33. Second connecting bar; 4. Infrared thermometer; 5. First linear slide module; 6. Second linear slide module. DETAILED DESCRIPTION

[0025] The following will be combined with the Figure 1 -Attached Figure 2 , a clear and complete description of the technical solutions in the embodiments of the present invention is given. The described embodiments are only possible technical implementations of the present invention, not all possible implementations.

[0026] The construction process for spraying exterior walls of a building provided in the embodiment of the present application comprises the following steps: s1. Surface treatment.

[0027] s11. Use a digital level to check the flatness of the wall and mark the concave and convex parts.

[0028] s12. Use general-purpose cement mortar to repair holes or obvious depressions, and use exterior wall putty to fill in inconspicuous depressions.

[0029] s13. After the exterior wall putty has dried, use a handheld grinder to grind the obvious protruding parts and repaired areas.

[0030] s14. Remove any sticking matter and dust from the wall, and use a sprinkler or automatic sprinkler system to spray water to moisten the wall.

[0031] s2. Grassroots processing.

[0032] s21. Add water to the putty powder in the correct proportions and stir thoroughly with an electric tool to ensure that there are no particles after the putty powder and water are mixed. The electric tool can be a handheld blender or an automatic blender. Choose the appropriate mixing tool based on the amount of putty powder and site conditions.

[0033] s22. Apply putty on the wall to form a base layer, and use a putty knife to smooth the putty; wherein, the thickness of the base layer is controlled to be 1.5-2mm. After the putty is dry, use sandpaper to smooth the base layer; s23. Carry out watering maintenance on the base layer at least twice, and the time interval between each maintenance should be at least 4 hours.

[0034] s3. Construction area division; S31. Measure the dimensions of the wall and perform a first partitioning process based on the overall dimensions of the wall to separate out units to be sprayed. The first partitioning process is performed vertically, and multiple units to be sprayed are evenly divided based on the overall height of the wall.

[0035] s32. Evenly select multiple temperature measurement points within the unit to be sprayed obtained from the first zoning process, and use a temperature measurement device to measure the temperature of each temperature measurement point within the same unit to be sprayed. Temperature measurement points must be selected at the edge and center of the unit to be sprayed.

[0036] The wall is then partitioned a second time based on the measured temperature data, ensuring that the temperature difference between the temperature measurement points within the same spray unit is within a range of 0-3 degrees Celsius. The temperature measurement equipment must be non-contact to facilitate rapid temperature measurement at all measurement points across the entire wall.

[0037] s33. Use a marking tool to mark the boundary lines of each unit to be sprayed on the wall. Use a level ruler or spirit level to ensure that the boundary lines are straight. The marking tool can be colored tape or a marker, and the construction personnel will mark manually.

[0038] s4. Spraying construction: Use spraying equipment to spray multiple units to be sprayed. When spraying, spray in order from high to low temperature of the units to be sprayed. Before spraying, only the unit to be sprayed currently under construction is exposed, and a partition shielding mechanism is used to shield the remaining units to be sprayed on the wall.

[0039] Among them, the spraying treatment specifically includes: S41, use a spray gun for spraying. Adjust the pressure and flow of the spray gun according to the viscosity of the paint and construction requirements. The air pressure range of the spray gun is 0.3-0.6MPa, and the flow range is 200-350ml / min. s42. Before turning on the spray gun, adjust the position and angle of the spray gun, keep the distance between the spray gun and the wall between 50-60cm, and keep the angle between the spray gun and the wall between 85-90°; When moving the spray gun, spray each unit to be sprayed evenly from top to bottom or from left to right, control the movement speed of the spray gun to ensure uniform coating thickness on the unit to be sprayed; after spraying one unit to be sprayed, give appropriate drying time according to the drying requirements of the paint before continuing to spray the next unit to be sprayed.

[0040] Reference Figure 2 The partition shielding mechanism includes a mobile frame 1, an upper shielding assembly 2 and a lower shielding assembly 3 mounted on the mobile frame 1. The mobile frame 1 includes a mobile base 11 and mounting rods 12 fixed to the mobile base 11. Two mounting rods 12 are spaced apart on the mobile base 11. A first linear slide module 5 and a second linear slide module 6 are fixed to each mounting rod 12 at intervals, with the first linear slide module 5 located above the second linear slide module 6.

[0041] Reference Figure 2 The upper shielding assembly 2 includes a first slide 21 and a first shielding barrier 22 connected to one side of the first slide 21. One end of the first slide 21 is fixedly connected to a slider in a first linear slide module 5, and the other end of the first slide 21 is fixedly connected to a slider in another first linear slide module 5, so as to achieve a sliding connection of the first slide 21 on the movable frame 1. A first connecting bar 23 is fixed to the end of the first shielding barrier 22 away from the first slide 21. The first connecting bar 23 is fixedly connected to the upper end of the mounting rod 12. The first shielding barrier 22 is made of a foldable sheet material; the telescopic function of the first shielding barrier 22 can be achieved by driving the first slide 21 to move through the first linear slide module 5.

[0042] Reference Figure 2 The lower shielding assembly 3 includes a second slide 31 and a second shielding barrier 32. One end of the second slide 31 is fixedly connected to a slider in one second linear slide module 6, and the other end of the second slide 31 is fixedly connected to a slider in another second linear slide module 6, thereby achieving a sliding connection of the second slide 31 on the movable frame 1. A second connecting bar 33 is fixed to the end of the second shielding barrier 32 away from the second slide 31. The second connecting bar 33 is fixed to the lower end of the mounting rod 12. The second shielding barrier 32 is also made of a foldable sheet material; the second linear slide module 6 drives the second slide 31 to move, thereby achieving the telescopic function of the second shielding barrier 32.

[0043] In other embodiments, the first shielding barrier 22 and the second shielding barrier 32 may be configured as circular shielding film rolls, and the telescopic function of the first shielding barrier 22 and the second shielding barrier 32 may be achieved by retracting and extending the shielding film rolls.

[0044] When in use, according to the marked dividing line, start the first linear slide module 5 and the second linear slide module 6, move the first slide 21 to the upper dividing line of the unit to be sprayed currently under construction, and move the second slide 31 to the lower dividing line of the unit to be sprayed currently under construction.

[0045] Reference Figure 2 A vertical slide rail 13 is also fixed to the mobile base 11. The infrared thermometer 4 is slidably connected to the vertical slide rail 13, and the infrared thermometer 4 slides vertically on the mobile frame 1. A drive assembly for driving the infrared thermometer 4 is provided on the vertical slide rail 13. The drive assembly is specifically configured as a motor screw assembly. The arrangement of the mobile base 11 and the vertical slide rail 13 enables the infrared thermometer 4 to move two-dimensionally along one side of the wall. When measuring the temperature of temperature measurement points on the wall, the infrared thermometer 4 can be used directly to automatically measure the temperature of multiple temperature measurement points.

[0046] s5. Maintenance of finished products.

[0047] This embodiment effectively addresses the impact of temperature differences on spray coating quality across different building exterior walls by zoning, measuring temperature, and shielding the wall in stages. Refined base treatment and coating spraying technology ensure the consistency and smoothness of the coating, thereby improving the spraying effect.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A spraying construction process for building exterior walls, characterized in that: The steps include: s1. Surface treatment; s2, grass-roots processing; s3. Construction area division; s31. Measure the size of the wall, perform the first partitioning process according to the overall size of the wall, and separate the units to be sprayed; s32. Evenly select multiple temperature measuring points within the unit to be sprayed obtained by the first partitioning process, use a temperature measuring device to detect the temperature of each temperature measuring point within the same unit to be sprayed, and perform a second partitioning process on the wall surface based on the measured temperature data, so that the temperature difference range between the temperature measuring points within the same unit to be sprayed is: 0-3 degrees Celsius; s33. Use a marking tool to mark the boundary lines of each unit to be sprayed on the wall. Use a level ruler or spirit level to ensure that the boundary lines are straight lines. s4. Spraying construction: Use spraying equipment to spray multiple units to be sprayed. When spraying, spray in descending order according to the temperature of the units to be sprayed. Before spraying, only the unit to be sprayed currently is exposed, and the rest of the units to be sprayed on the wall are shielded. s5. Maintenance of finished products.

2. A building exterior wall spraying construction process according to claim 1, characterized in that: The step s1 comprises: s11. Use a level to check the flatness of the wall and mark the concave and convex parts; s12. Repair holes or obvious depressions with cement mortar, and use exterior wall putty to fill in minor depressions; s13. After the exterior wall putty is dry, use a grinding wheel to grind the obvious protruding parts and the repaired parts; s14. Remove any sticky matter and dust from the wall, and sprinkle water to moisten the wall.

3. A construction process for spraying exterior walls of a building according to claim 2, characterized in that: The step s2 comprises: s21. Add water to the putty powder in proportion and stir evenly with an electric tool to ensure that there are no particles after the putty powder and water are mixed; s22. Apply putty on the wall to form a base layer, and use a putty knife to smooth the putty; wherein, the thickness of the base layer is controlled to be 1.5-2mm. After the putty is dry, use sandpaper to smooth the base layer; s23. Carry out watering maintenance on the base layer at least twice, and the time interval between each maintenance should be at least 4 hours.

4. A building exterior wall spraying construction process according to claim 1, characterized in that: In step s31, the wall surface is partitioned for the first time along the vertical direction, and a plurality of units to be sprayed are evenly divided according to the overall height of the wall surface.

5. A construction process for spraying exterior walls of a building according to claim 1, characterized in that: In step s4, a partition shielding mechanism is used to shield the remaining units to be sprayed on the wall surface; The partition shielding mechanism comprises a movable frame (1), an upper shielding assembly (2) and a lower shielding assembly (3) arranged on the movable frame (1); the upper shielding assembly (2) comprises a first slide (21) and a first shielding barrier (22) connected to one side of the first slide (21); the first slide (21) is slidably arranged on the movable frame (1) in a vertical direction; an end of the first shielding barrier (22) away from the first slide (21) is connected to the upper end of the movable frame (1); and the first shielding barrier (22) is retractable; The lower shielding assembly (3) comprises a second slide (31) and a second shielding barrier (32); the first slide (21) is slidably arranged on the movable frame (1) in a vertical direction; the second shielding barrier (32) is connected to a side of the second slide (31) away from the first slide (21); an end of the second shielding barrier (32) away from the first slide (21) is connected to the lower end of the movable frame (1); and the second shielding barrier (32) is retractably arranged.

6. A construction process for spraying exterior walls of a building according to claim 5, characterized in that: The first shielding barrier and the second shielding sheet are both made of folded sheet material.

7. A construction process for spraying exterior walls of a building according to claim 5, characterized in that: An infrared thermometer (4) is also provided on the movable frame (1), and the infrared thermometer (4) slides on the movable frame (1) in a vertical direction.

8. A construction process for spraying exterior walls of a building according to claim 1, characterized in that: In step s4, the spraying process specifically includes: S41, use a spray gun for spraying. Adjust the pressure and flow of the spray gun according to the viscosity of the paint and construction requirements. The air pressure range of the spray gun is 0.3-0.6MPa, and the flow range is 200-350ml / min. s42. Spray each unit to be sprayed evenly from top to bottom or from left to right, control the movement speed of the spray gun to ensure uniform coating thickness on the unit to be sprayed; after spraying one unit to be sprayed, give appropriate drying time according to the drying requirements of the paint before continuing to spray the next unit to be sprayed.

9. A construction process for spraying exterior walls of a building according to claim 8, characterized in that: The step s42 further includes adjusting the position and angle of the spray gun before starting the spray gun, keeping the distance between the spray gun and the wall between 50-60 cm and the angle between the spray gun and the wall between 85-90 degrees.

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