Building steel paint spraying equipment and method for building construction

Abstract

The invention relates to the technical field of building steel surface treatment, in particular to building steel paint spraying equipment and method for building construction. Comprising a movable base, an adjustable supporting arm, a mounting plate, an adjusting arm, an adjusting mechanism, a rotating seat, a mounting piece, a rotating mechanism, a spray head and a paint conveying unit, the height of the spray head is located on the upper portion of the large steel through the adjustable supporting arm, the adjusting mechanism is started to drive the adjusting arm to slide on the mounting plate, and the spray head is located at the top end of the large steel; and the rotating mechanism is started, the mounting piece is driven to rotate on the rotating seat through the rotating shaft, and after the output end of the spray head corresponds to the upper surface of the large building steel, paint is conveyed to the spray head through the paint conveying unit, and the upper surface of the large building steel is sprayed. The top end of the large building steel can be automatically sprayed, and compared with a manual spraying mode, the high-altitude operation potential safety hazard is low, and spraying is more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of surface treatment of construction steel, and particularly relates to a paint spraying device and method for construction steel used in building construction. Background Art

[0002] In building construction, steel structures are widely used due to their high strength, fast construction speed and other advantages. To extend the service life of construction steel and meet the aesthetic requirements, it is necessary to spray anti-corrosion paint or decorative paint on its surface. However, in the prior art, there are the following prominent problems in the paint spraying of large construction steel (such as steel columns over 3 meters in height or steel beams with a large span):

[0003] High-altitude operation has great safety hazards: For the top or high areas on the side of large steel, operators need to climb to high places with the help of ladders, scaffolding or lifting equipment for spraying. Such operation methods not only have low efficiency, but also have the risk of falling. Especially in outdoor or complex construction environments, the safety hazards are more prominent.

[0004] It is difficult to ensure spraying uniformity: When spraying at high altitude manually, due to the limited range of arm movement, it is easy to cause uneven film thickness. Especially at the junction of the top and side of the steel, there is easy to be missed spraying or accumulation, which affects the anti-corrosion effect. In addition, the inconsistent moving speed of manual spraying will also cause paint waste.

[0005] In summary, the existing paint spraying construction methods for large construction steel have problems of great safety hazards in high-altitude operation and difficulty in ensuring spraying uniformity. Summary of the Invention

[0006] The purpose of the present invention is to provide a paint spraying device and method for construction steel used in building construction, so as to solve the problems of great safety hazards in high-altitude operation and difficulty in ensuring spraying uniformity in the existing paint spraying construction methods for large construction steel.

[0007] To achieve the above object, the present invention provides a paint spraying device for construction steel used in building construction, including a moving base, an adjustable support arm, a mounting plate, an adjusting arm, an adjusting mechanism, a rotating seat, a mounting member, a rotating mechanism, a spray head and a paint delivery unit. The upper surface of the moving base is provided with the adjustable support arm and the paint delivery unit. The adjusting end of the adjustable support arm is provided with the mounting plate. The adjusting arm is slidably arranged on the mounting plate. The adjusting arm is perpendicular to the adjustable support arm. A toothed plate is further arranged on the upper surface of the adjusting arm. The adjusting mechanism is mounted on the mounting plate. The output end of the adjusting mechanism is mechanically transmitted with the toothed plate;

[0008] One end of the adjusting arm away from the mounting plate is provided with the rotating seat. The mounting member is rotatably arranged on the rotating seat through a rotating shaft. The rotating seat is further provided with the rotating mechanism. The output end of the rotating mechanism is mechanically transmitted with the rotating shaft. The mounting member is provided with the spray head. The output end of the paint conveying unit is connected to the spray head through a pipeline.

[0009] Wherein, the adjustable support arm includes a vertical arm, a ball screw assembly and a sliding seat. The vertical arm is installed on the upper surface of the moving base. The sliding seat is slidably arranged on the vertical arm. The ball screw assembly is arranged inside the vertical arm. The output end of the ball screw assembly is connected to the sliding seat.

[0010] Wherein, the adjusting mechanism includes a first driving motor and a driving gear. The first driving motor is installed on the mounting plate. The output end of the first driving motor is provided with the driving gear. The driving gear meshes with the tooth part of the toothed plate.

[0011] Wherein, the rotating mechanism includes a second driving motor, a gear reduction box and a coupling. The second driving motor is installed on the side of the rotating seat. The output end of the second driving motor is provided with the gear reduction box. The output end of the gear reduction box is provided with the coupling. The coupling is connected to the rotating shaft.

[0012] Wherein, the paint conveying unit includes a paint bucket and a pump body. Both the paint bucket and the pump body are installed on the upper surface of the moving base. The input end of the pump body is located inside the paint bucket. The output end of the pump body is connected to the spray head through a pipeline.

[0013] Wherein, the construction steel paint spraying equipment for building construction further includes a stirring assembly. The top of the paint bucket is provided with a mounting frame. The stirring assembly is installed on the mounting frame. The output end of the stirring assembly is located inside the paint bucket.

[0014] Wherein, the stirring assembly includes a servo motor, a driving shaft and stirring blades. The servo motor is installed on the mounting frame. The output end of the servo motor is provided with the driving shaft. The driving shaft is provided with the stirring blades. The stirring blades are located inside the paint bucket.

[0015] The present invention also provides a method for spraying paint on construction steel for building construction, which is applied to the construction steel paint spraying equipment for building construction as described above, and includes the following steps:

[0016] Move the mobile base to the periphery of the large building steel. After the nozzle corresponds to the side of the large building steel, convey paint to the nozzle through the paint conveying unit to spray the side of the large building steel. During the spraying process, adjust the height of the mounting plate through the adjustable support arm to adjust the height of the nozzle.

[0017] After the spraying of the side of the large steel is completed, adjust the height of the mounting plate through the adjustable support arm to adjust the height of the nozzle to be above the large steel. Start the adjusting mechanism to drive the adjusting arm to slide on the mounting plate so that the nozzle is located at the top of the large steel.

[0018] Start the rotating mechanism. Drive the mounting member to rotate on the rotating seat through the rotating shaft. After the output end of the nozzle corresponds to the upper surface of the large building steel, convey paint to the nozzle through the paint conveying unit to spray the upper surface of the large building steel.

[0019] After the spraying of the current area is completed, the mobile base moves along the periphery of the large building steel. When moving to the next working area, repeat the spraying steps to complete the paint spraying of the large building steel.

[0020] A paint spraying device and method for building steel in building construction according to the present invention includes a mobile base, an adjustable support arm, a mounting plate, an adjusting arm, an adjusting mechanism, a rotating seat, a mounting member, a rotating mechanism, a nozzle, and a paint conveying unit. Move the mobile base to the periphery of the large building steel. Adjust the height of the mounting plate through the adjustable support arm so that the height of the nozzle is above the large steel. Start the adjusting mechanism to drive the adjusting arm to slide on the mounting plate so that the nozzle is located at the top of the large steel. Start the rotating mechanism. Drive the mounting member to rotate on the rotating seat through the rotating shaft. After the output end of the nozzle corresponds to the upper surface of the large building steel, convey paint to the nozzle through the paint conveying unit to spray the upper surface of the large building steel. After the spraying of the current area is completed, the mobile base moves along the periphery of the large building steel. When moving to the next working area, repeat the spraying steps to complete the paint spraying of the large building steel. With the above structure, the spraying of the top of the large building steel can be automatically completed. Compared with the manual spraying method, the safety hazard of high-altitude operation is lower and the spraying is more uniform. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a building steel paint spraying device for building construction according to the first embodiment of the present invention.

[0023] Figure 2 provided by the present invention Figure 1 Partial enlarged structural view of part A of

[0024] Figure 3 provided by the present invention Figure 1 Schematic structural diagram from another perspective of

[0025] Figure 4 provided by the present invention Figure 3 Partial enlarged structural view of part B of

[0026] Figure 5 It is a schematic external structural diagram of a paint bucket in the second embodiment of the present invention.

[0027] Figure 6 It is a schematic internal structural diagram of a paint bucket in the second embodiment of the present invention.

[0028] Figure 7 It is a step flow chart of building steel paint spraying for building construction provided by the present invention.

[0029] 101 - Mobile base, 102 - Mounting plate, 103 - Adjusting arm, 104 - Rotating seat, 105 - Mounting member, 106 - Spray head, 107 - Vertical arm, 108 - Ball screw assembly, 109 - Sliding seat, 110 - First drive motor, 111 - Driving gear, 112 - Second drive motor, 113 - Gear reduction box, 114 - Coupling, 115 - Paint bucket, 116 - Pump body, 117 - Rack, 118 - Rotating shaft, 201 - Servo motor, 202 - Drive shaft, 203 - Stirring blade, 204 - Mounting frame, 205 - Heating chamber, 206 - Electric heating wire, 207 - Temperature sensor. Detailed implementation manners

[0030] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] First Embodiment:

[0032] Please refer to Figures 1 to 4 , where Figure 1 is a schematic structural view of a construction steel paint spraying device for building construction in the first embodiment, Figure 2 is Figure 1 an enlarged view of the partial structure at position A of Figure 3 is Figure 1 a schematic structural view of another perspective of Figure 4 is Figure 3 an enlarged view of the partial structure at position B of

[0033] The present invention provides a construction steel paint spraying device for building construction, including a moving base 101, an adjustable support arm, a mounting plate 102, an adjusting arm 103, an adjusting mechanism, a rotating seat 104, a mounting member 105, a rotating mechanism, a spray head 106, and a paint delivery unit. The adjustable support arm includes a vertical arm 107, a ball screw assembly 108, and a sliding seat 109. The adjusting mechanism includes a first drive motor 110 and a drive gear 111. The rotating mechanism includes a second drive motor 112, a gear reduction box 113, and a coupling 114. The paint delivery unit includes a paint bucket 115 and a pump body 116. By the foregoing solution, the problems of large safety hazards in high-altitude operations and difficulty in ensuring spraying uniformity in the existing paint spraying construction method for large construction steel are solved. It can be understood that the foregoing solution can be used in the structure of a construction steel paint spraying device for building construction.

[0034] For this specific embodiment, the upper surface of the mobile base 101 is provided with the adjustable support arm and the paint delivery unit. The adjustment end of the adjustable support arm is provided with the mounting plate 102. The adjustment arm 103 is slidably arranged on the mounting plate 102. The adjustment arm 103 is perpendicular to the adjustable support arm. A toothed plate 117 is further arranged on the upper surface of the adjustment arm 103. The adjustment mechanism is installed on the mounting plate 102. The output end of the adjustment mechanism is in mechanical transmission with the toothed plate 117. One end of the adjustment arm 103 away from the mounting plate 102 is provided with the rotating seat 104. The mounting member 105 is rotatably arranged on the rotating seat 104 through a rotating shaft 118. The rotating mechanism is further arranged on the rotating seat 104. The output end of the rotating mechanism is in mechanical transmission with the rotating shaft 118. The nozzle 106 is arranged on the mounting member 105. The output end of the paint delivery unit is connected to the nozzle 106 through a pipeline. Move the mobile base 101 to the periphery of large building steel. Adjust the height of the mounting plate 102 through the adjustable support arm so that the height of the nozzle 106 is at the upper part of the large steel. Start the adjustment mechanism to drive the adjustment arm 103 to slide on the mounting plate 102 so that the nozzle 106 is located at the top of the large steel. Start the rotating mechanism to drive the mounting member 105 to rotate on the rotating seat 104 through the rotating shaft 118. After the output end of the nozzle 106 corresponds to the upper surface of the large building steel, deliver paint to the nozzle 106 through the paint delivery unit to spray the upper surface of the large building steel. After the current area is sprayed, the mobile base 101 moves along the periphery of the large building steel. When moving to the next working area, repeat the spraying steps to complete the paint spraying of the large building steel. With the above structure, the spraying of the top of the large building steel can be automatically completed. Compared with the manual spraying method, the safety hazards of working at heights are lower and the spraying is more uniform.

[0035] Among them, the vertical arm 107 is installed on the upper surface of the mobile base 101. The sliding seat 109 is slidably arranged on the vertical arm 107. The ball screw assembly 108 is arranged inside the vertical arm 107. The output end of the ball screw assembly 108 is connected to the sliding seat 109. Through the arrangement of the ball screw assembly 108, the sliding seat 109 can be driven to slide on the vertical arm 107, thereby completing the adjustment of the height of the mounting plate 102.

[0036] Secondly, the first driving motor 110 is installed on the mounting plate 102. A driving gear 111 is provided at the output end of the first driving motor 110. The driving gear 111 meshes with the tooth portion of the toothed plate 117. When the first driving motor 110 is started, the driving gear 111 is driven to rotate. Since the driving gear 111 meshes with the tooth portion of the toothed plate 117, the adjusting arm 103 is driven to slide on the mounting plate 102.

[0037] Meanwhile, the second driving motor 112 is installed on the side surface of the rotating seat 104. A gear reduction box 113 is provided at the output end of the second driving motor 112. A coupling 114 is provided at the output end of the gear reduction box 113. The coupling 114 is connected to the rotating shaft 118. When the second driving motor 112 is started, after the output speed is reduced by the gear reduction box 113, the rotating shaft 118 is driven to rotate through the coupling 114.

[0038] In addition, the paint bucket 115 and the pump body 116 are both installed on the upper surface of the moving base 101. The input end of the pump body 116 is located inside the paint bucket 115. The output end of the pump body 116 is connected to the nozzle 106 through a pipeline. When the pump body 116 is started, the paint in the paint bucket 115 is conveyed to the nozzle 106 through the pipeline.

[0039] When using a building steel paint spraying device for building construction according to this embodiment, move the mobile base 101 to the periphery of large building steel. After making the spray head 106 correspond to the side of the large building steel, convey paint to the spray head 106 through the paint conveying unit to spray the side of the large building steel. During the spraying process, adjust the height of the mounting plate 102 through the adjustable support arm to adjust the height of the spray head 106. And when the spraying of the side of the large steel is completed, adjust the height of the mounting plate 102 through the adjustable support arm so that the height of the spray head 106 is above the large steel. Start the adjusting mechanism to drive the adjusting arm 103 to slide on the mounting plate 102 so that the spray head 106 is located at the top of the large steel. Start the rotating mechanism, drive the mounting member 105 to rotate on the rotating seat 104 through the rotating shaft 118 so that the output end of the spray head 106 corresponds to the upper surface of the large building steel. Then convey paint to the spray head 106 through the paint conveying unit to spray the upper surface of the large building steel. After the spraying of the current area is completed, the mobile base 101 moves along the periphery of the large building steel. When moving to the next working area, repeat the spraying steps to complete the paint spraying of the large building steel. With the above structure, the spraying of the top of the large building steel can be automatically completed. Compared with the manual spraying method, the potential safety hazard of working at height is lower and the spraying is more uniform.

[0040] Second Embodiment:

[0041] Based on the first embodiment, please refer to Figure 5 and Figure 6 , Figure 5 which are the external structure schematic diagram of the paint bucket in the second embodiment, Figure 5 and the internal structure schematic diagram of the paint bucket in the second embodiment.

[0042] The building steel paint spraying device for building construction provided by the present invention further includes a stirring assembly, and the stirring assembly includes a servo motor 201, a driving shaft 202 and stirring blades 203.

[0043] For this specific embodiment, an installation frame 204 is provided at the top of the paint bucket 115, and the stirring assembly is installed on the installation frame 204. The output end of the stirring assembly is located inside the paint bucket 115. Through the setting of the stirring assembly, the paint in the paint bucket 115 is stirred to avoid paint stratification, ensure that various components such as pigments, solvents and additives in the paint bucket 115 are fully mixed, and restore the original state and performance of the paint.

[0044] Among them, the servo motor 201 is installed on the mounting bracket 204. The output end of the servo motor 201 is provided with the drive shaft 202, and the stirring blade 203 is arranged on the drive shaft 202. The stirring blade 203 is located inside the paint bucket 115. Start the servo motor 201, drive the stirring blade 203 to rotate through the drive shaft 202, and use the stirring blade 203 to stir the paint in the paint bucket 115.

[0045] Secondly, a heating cavity 205 is arranged on the side wall of the paint bucket 115, and an electric heating wire 206 is arranged inside the heating cavity 205. Through the arrangement of the electric heating wire 206, the paint in the paint bucket 115 can be heated to increase its temperature. As the temperature rises, the viscosity of the paint will decrease, thereby enhancing its fluidity, ensuring that the paint is more smooth during spraying, and reducing the construction difficulty.

[0046] At the same time, a temperature sensor 207 is arranged inside the heating cavity 205. Through the arrangement of the temperature sensor 207, the temperature inside the heating cavity 205 can be monitored in real time. Through the real-time monitored temperature value, the output power of the electric heating wire 206 can be controlled to facilitate the adjustment of the temperature inside the heating cavity 205.

[0047] When using the building steel paint spraying device for building construction of this embodiment, start the servo motor 201, drive the stirring blade 203 to rotate through the drive shaft 202, and use the stirring blade 203 to stir the paint in the paint bucket 115 to avoid paint stratification, ensure that various components such as pigments, solvents, and additives in the paint bucket 115 are fully mixed, restore the original state and performance of the paint, and through the arrangement of the electric heating wire 206, the paint in the paint bucket 115 can be heated to increase its temperature. As the temperature rises, the viscosity of the paint will decrease, thereby enhancing its fluidity, ensuring that the paint is more smooth during spraying, and reducing the construction difficulty.

[0048] Please refer to Figure 7 , the present invention also provides a building steel paint spraying method for building construction, which is applied to the building steel paint spraying device for building construction as described above, and includes the following steps:

[0049] S1: Move the mobile base 101 to the periphery of the large building steel. After the nozzle 106 corresponds to the side of the large building steel, convey paint to the nozzle 106 through the paint conveying unit, spray the side of the large building steel, and adjust the height of the mounting plate 102 through the adjustable support arm during the spraying process to adjust the height of the nozzle 106;

[0050] S2: After the side of the large steel is sprayed, adjust the height of the mounting plate 102 through the adjustable support arm, adjust the height of the spray head 106 to be above the large steel, start the adjustment mechanism, drive the adjustment arm 103 to slide on the mounting plate 102, so that the spray head 106 is located at the top of the large steel;

[0051] S3: Start the rotation mechanism, drive the mounting member 105 to rotate on the rotating seat 104 through the rotating shaft 118. After the output end of the spray head 106 corresponds to the upper surface of the large building steel, convey paint to the spray head 106 through the paint conveying unit to spray the upper surface of the large building steel;

[0052] S4: After the current area is sprayed, the moving base 101 moves along the periphery of the large building steel. When moving to the next working area, repeat the spraying steps to complete the paint spraying of the large building steel.

[0053] In this embodiment, move the moving base 101 to the periphery of the large building steel, so that the spray head 106 corresponds to the side of the large building steel. After that, convey paint to the spray head 106 through the paint conveying unit to spray the side of the large building steel. During the spraying process, through the setting of the ball screw assembly 108, the sliding seat 109 can be driven to slide on the vertical arm 107, so as to complete the adjustment of the height of the mounting plate 102, adjust the height of the spray head 106. And after the side of the large steel is sprayed, adjust the height of the mounting plate 102 through the adjustable support arm, so that the height of the spray head 106 is above the large steel. Start the adjustment mechanism, drive the adjustment arm 103 to slide on the mounting plate 102, so that the spray head 106 is located at the top of the large steel. Start the rotation mechanism, drive the mounting member 105 to rotate on the rotating seat 104 through the rotating shaft 118. After the output end of the spray head 106 corresponds to the upper surface of the large building steel, convey paint to the spray head 106 through the paint conveying unit to spray the upper surface of the large building steel. After the current area is sprayed, the moving base 101 moves along the periphery of the large building steel. When moving to the next working area, repeat the spraying steps to complete the paint spraying of the large building steel. With the above structure, the spraying of the top of the large building steel can be completed automatically. Compared with the manual spraying method, the safety hazard of high-altitude operation is lower and the spraying is more uniform.

[0054] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A construction steel paint spraying equipment for construction, characterized in that: It comprises a movable base, an adjustable support arm, a mounting plate, an adjustment arm, an adjustment mechanism, a rotating seat, a mounting piece, a rotating mechanism, a spray head and a paint delivery unit. The upper surface of the movable base is provided with the adjustable support arm and the paint delivery unit. The adjustment end of the adjustable support arm is provided with the mounting plate. The adjustment arm is slidably provided on the mounting plate. The adjustment arm is perpendicular to the adjustable support arm. A tooth plate is also provided on the upper surface of the adjustment arm. The adjustment mechanism is installed on the mounting plate. The output end of the adjustment mechanism is mechanically transmitted with the tooth plate. The rotating seat is arranged at one end of the adjusting arm away from the mounting plate, the mounting piece is rotatably arranged on the rotating seat via a rotating shaft, the rotating mechanism is also arranged on the rotating seat, the output end of the rotating mechanism is mechanically transmitted with the rotating shaft, the nozzle is arranged on the mounting piece, and the output end of the paint delivery unit is connected with the nozzle pipe.

2. The construction steel paint spraying equipment for construction as claimed in claim 1, characterized in that: The adjustable support arm includes a vertical arm, a ball screw assembly and a sliding seat. The vertical arm is installed on the upper surface of the movable base. The sliding seat is slidably arranged on the vertical arm. The ball screw assembly is arranged inside the vertical arm, and the output end of the ball screw assembly is connected to the sliding seat.

3. The construction steel paint spraying equipment for construction as claimed in claim 2, characterized in that: The adjustment mechanism includes a first drive motor and a drive gear. The first drive motor is mounted on the mounting plate. The output end of the first drive motor is provided with the drive gear, and the drive gear is meshed with the tooth portion of the tooth plate.

4. The construction steel paint spraying equipment for construction as claimed in claim 3, characterized in that: The rotating mechanism includes a second driving motor, a gear reduction box and a coupling. The second driving motor is installed on the side of the rotating seat. The output end of the second driving motor is provided with the gear reduction box. The output end of the gear reduction box is provided with the coupling, and the coupling is connected to the rotating shaft.

5. The construction steel paint spraying equipment for construction as claimed in claim 1, characterized in that: The paint delivery unit comprises a paint bucket and a pump body, wherein the paint bucket and the pump body are both mounted on the upper surface of the mobile base, the input end of the pump body is located inside the paint bucket, and the output end of the pump body is connected to the nozzle through a pipeline.

6. The construction steel paint spraying equipment for construction as claimed in claim 5, characterized in that: The construction steel paint spraying equipment for construction also includes a stirring component. A mounting frame is provided at the top of the paint bucket, the stirring component is mounted on the mounting frame, and the output end of the stirring component is located inside the paint bucket.

7. The construction steel paint spraying equipment for construction as claimed in claim 6, characterized in that: The stirring assembly includes a servo motor, a driving shaft and a stirring blade. The servo motor is installed on the mounting frame. The output end of the servo motor is provided with the driving shaft. The driving shaft is provided with the stirring blade. The stirring blade is located inside the paint bucket.

8. A method for spraying paint on construction steel for construction, applied to the construction steel paint spraying equipment for construction as claimed in claim 1, characterized in that: The steps include: The movable base is moved to the periphery of the large-scale building steel material so that the spray head corresponds to the side of the large-scale building steel material, and the paint is transported to the spray head through the paint transport unit to spray the side of the large-scale building steel material. During the spraying process, the height of the mounting plate is adjusted through the adjustable support arm to adjust the height of the spray head; After the side spraying of the large steel material is completed, the height of the mounting plate is adjusted by the adjustable support arm, and the height of the nozzle is adjusted to be located at the upper part of the large steel material. The adjustment mechanism is started to drive the adjustment arm to slide on the mounting plate, so that the nozzle is located at the top of the large steel material; The rotating mechanism is started, and the mounting member is driven to rotate on the rotating seat through the rotating shaft, so that the output end of the spray head corresponds to the upper surface of the large-scale building steel, and then the paint is transported to the spray head through the paint transport unit to spray the upper surface of the large-scale building steel; After the current area is sprayed, the mobile base moves along the periphery of the large-scale construction steel. When it moves to the next working area, the spraying steps are repeated to complete the paint spraying of the large-scale construction steel.

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