Deepened coating pretreatment equipment and method for spraying outer wall of steel structure factory building

Abstract

The invention discloses equipment and a method for pretreating a deepening coating for spraying an outer wall of a steel structure factory building, relates to the technical field of coating pretreatment, and solves the problems that when the equipment for pretreating the deepening coating for spraying the outer wall is used, due to more pretreatment procedures, various devices are needed for respective treatment, so that the treatment efficiency is low, and the treatment cost is high. And outer walls at different positions need to be coated with different colors, and at the moment, the color of the dyed paint is difficult to adjust, so that the operation is very inconvenient. The invention relates to pretreatment equipment and method for deepening paint for spraying an outer wall of a steel structure factory building. The pretreatment equipment comprises a storage mechanism, and a material returning mechanism is arranged on one side of the storage mechanism. According to the device, a coating passes through the interiors of the material mixing cavity, the defoaming cavity and the mixing cavity respectively, so that the coating is subjected to dyeing, defoaming and full stirring pretreatment, the treatment process is compact, the treatment efficiency is high, and time and space waste caused by traditional multi-equipment treatment is avoided.

Description

Technical Field

[0001] This invention relates to the field of coating pretreatment, specifically to a deep coating pretreatment equipment and method for spraying exterior walls of steel structure workshops. Background Technology

[0002] Exterior wall paint is used to coat the exterior walls of buildings, so one of the most important indicators is resistance to ultraviolet radiation, requiring it to remain unchanged in color even after prolonged exposure. Some exterior wall paints also require water resistance and self-cleaning properties. The paint film should be hard and smooth, with dirt easily washed away. Exterior wall paint can be used for interior wall painting because it also has water resistance; however, interior wall paint does not have sun protection properties, so it cannot be used as exterior wall paint. Exterior wall coatings need to be pre-treated before use, such as dyeing and defoaming processes.

[0003] Existing pretreatment equipment for deep coatings used in exterior wall spraying involves multiple pretreatment steps, requiring the use of various devices for separate processing, resulting in low processing efficiency. Furthermore, different exterior wall locations may require different colors for coating, making it difficult to adjust the color of the already stained paint, which is very inconvenient. Therefore, it does not meet the current needs. To address this, we propose a pretreatment equipment and method for deep coatings used in steel structure factory exterior wall spraying. Summary of the Invention

[0004] The purpose of this invention is to provide a pretreatment device and method for deep coating on the exterior walls of steel structure workshops, in order to solve the problems mentioned in the background art, such as the low processing efficiency caused by the need for multiple devices to process the pretreatment equipment for deep coating on exterior walls due to the large number of pretreatment steps, and the difficulty in adjusting the color of the already stained paint for different locations of the exterior walls.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for deep coating for exterior wall spraying of steel structure workshops, including a storage mechanism, a return mechanism on one side of the storage mechanism, a stirring mechanism on the inner side of the storage mechanism, and an adjustment mechanism at the bottom of the return mechanism; The storage mechanism includes a storage tank, a seasoning chamber, a degassing chamber, a mixing chamber, a partition platform, and a dispensing pipe. The interior of the storage tank is divided into three areas from top to bottom: the seasoning chamber, the degassing chamber, and the mixing chamber. A partition platform is fixedly installed between the seasoning chamber, the degassing chamber, and the mixing chamber. A dispensing pipe is fixedly installed on the bottom of the storage tank near the return material mechanism. The material return mechanism includes a material return pipe, a rotating rod, and a spiral feeding plate. The outer end of the material distribution pipe is welded to the material return pipe, and the top end of the material return pipe is welded to one side of the top of the storage tank. The rotating rod is rotatably installed inside the material return pipe, and the spiral feeding plate is fixedly installed on the outer surface of the rotating rod.

[0006] Preferably, the storage mechanism further includes a feed pipe and a U-shaped feeding pipe. The feed pipe is fixedly installed on the other side of the top of the storage tank. The U-shaped feeding pipe is fixedly connected between the seasoning chamber and the degassing chamber, as well as between the degassing chamber and the mixing chamber. The seasoning chamber and the degassing chamber are connected through the U-shaped feeding pipe, and the degassing chamber and the mixing chamber are connected through the U-shaped feeding pipe.

[0007] Preferably, the return material mechanism further includes a top mounting block and a support base, with the top mounting block rotatably mounted on the top end of the return material pipe and the support base rotatably mounted on the bottom end of the return material pipe.

[0008] Preferably, the stirring mechanism includes a servo motor, a long rotating shaft, stirring rods, and a transmission chain. The long rotating shaft is rotatably mounted inside the storage tank. The long rotating shaft runs from top to bottom through the interior of the seasoning chamber, the degassing chamber, and the mixing chamber. The top of the long rotating shaft is equipped with a servo motor. The output end of the servo motor is connected to the long rotating shaft via a coupling. Stirring rods are fixedly mounted on the outer surface of the long rotating shaft inside the seasoning chamber, the degassing chamber, and the mixing chamber. The transmission chain is meshed with the outer surface of the long rotating shaft at the top of the storage tank.

[0009] Preferably, the stirring mechanism further includes a short rotating shaft, a driving gear, a transmission gear, a driven gear, and a mixing head. The bottom end of the partition platform located between the defoaming chamber and the mixing chamber is provided with a short rotating shaft. The top end of the short rotating shaft is rotatably connected to the partition platform. The mixing head is fixedly installed at the bottom end of the short rotating shaft. The driven gear is fixedly installed at the top end of the short rotating shaft. The outer surface of the driven gear is meshed with the transmission gear. The outer surface of the transmission gear is meshed with the driving gear. The driving gear is fixedly connected to the long rotating shaft, and the axes of the driving gear and the long rotating shaft are collinear. The driving gear, transmission gear, and driven gear are all rotatably installed inside the partition platform.

[0010] Preferably, the adjusting mechanism includes a discharge pipe, a rotating groove, a rotating disc, a fixed rod, and a rotating disk. The bottom end of the connection between the distribution pipe and the return pipe is welded to the discharge pipe. The discharge pipe has a rotating groove on its inner side. The fixed rod is rotatably installed inside the rotating groove. The rotating disc is fixedly installed on the outer surface of the fixed rod. The outer end of the fixed rod extends through the surface of the discharge pipe to the outer side of the discharge pipe. The rotating disk is detachably installed at the outer end of the fixed rod.

[0011] Preferably, the outer surface of the rotating rod near its top end is engaged with the transmission chain.

[0012] Preferably, the storage tank is fixedly equipped with three support legs at the bottom, and both the U-shaped feeding pipe and the distributing pipe are equipped with solenoid valves.

[0013] Preferably, a vacuum pump is fixedly installed on the outer surface of the storage tank near the degassing chamber. The surface of the vacuum pump is provided with an air intake pipe and an air outlet pipe, and the air intake pipe is movably inserted into the interior of the degassing chamber.

[0014] A pretreatment method for a pretreatment device for deep coating pretreatment of exterior walls of steel structure workshops, the pretreatment method comprising the following steps: Step A: First, pour the paint for exterior wall spraying into the storage tank through the feed pipe, so that it enters the mixing chamber. At this time, start the servo motor to drive the long rotating shaft to rotate, and the long rotating shaft drives the stirring rod to stir the paint in the mixing chamber to prevent the paint in the mixing chamber from solidifying. At this time, you can add dye into the mixing chamber through the feed pipe to adjust the color of the paint. Step B: After the paint color in the mixing chamber is adjusted, the paint in the mixing chamber can be fed into the degassing chamber through the U-shaped feeding pipe by opening the solenoid valve inside the U-shaped feeding pipe. At this time, the paint continues to be stirred by the stirring rod to prevent coagulation. After all the paint has entered the degassing chamber, the solenoid valve is closed and the vacuum pump is started. The vacuum pump extracts the air from the degassing chamber through the suction pipe to maintain a vacuum environment inside the degassing chamber, thereby degassing the paint inside the degassing chamber. Step C: After the coating inside the degassing chamber has undergone degassing treatment, the solenoid valve inside the U-shaped feeding pipe between the degassing chamber and the mixing chamber can be opened to allow the coating inside the degassing chamber to flow into the mixing chamber through the U-shaped feeding pipe. At this time, the coating will be stirred by the stirring rod to prevent coagulation and will accumulate at the position of the distribution pipe. When the long rotating shaft rotates, it will drive the drive gear to rotate synchronously, which in turn drives the transmission gear to rotate, and the transmission gear drives the driven gear to rotate, thereby driving the short rotating shaft to rotate. The mixing head at the bottom of the short rotating shaft will perform fine stirring treatment on the coating accumulated at the position of the distribution pipe, so that the coating and dye are fully mixed and the colorant is avoided. Step D: After the paint inside the mixing chamber is fully mixed by the mixing head, the solenoid valve inside the distribution pipe can be opened, allowing the paint inside the mixing chamber to flow through the distribution pipe to the connection between the return pipe and the discharge pipe. At this time, the rotating disc can be rotated to drive the fixed rod to rotate, thereby driving the rotating disc to rotate. The rotating disc will then close the pipe connecting the distribution pipe to the return pipe, allowing the paint to be discharged through the discharge pipe. Step E: When the paint inside the mixing chamber needs to be re-dyed, the rotating disk can be rotated, causing the fixed rod to rotate, which in turn drives the rotating disc to rotate. At this time, the rotating disc will close the pipe connecting the distribution pipe to the discharge pipe, allowing the paint to flow into the return pipe through the distribution pipe. When the long rotating shaft rotates, it will drive the rotating rod to rotate synchronously through the transmission chain, which in turn drives the spiral feeding plate on the surface to rotate. This transports the paint that has entered the return pipe to the uppermost position of the return pipe through the spiral feeding plate, allowing it to flow back into the mixing chamber. The above steps are repeated, which facilitates re-dyeing to adapt to different exterior wall coating constructions.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the combination of the mixing chamber, degassing chamber, and mixing chamber, allows the coating to pass through the interior of the mixing chamber, degassing chamber, and mixing chamber respectively during use, thereby performing dyeing, degassing, and thorough stirring pretreatment on the coating. The process is compact and efficient, avoiding the time and space waste caused by traditional multi-equipment processing.

[0016] 2. The present invention, through the cooperation of the return material mechanism and the rotating disc, enables the device to close the pipeline between the dispensing pipe and the discharge pipe when the treated paint needs to be re-dyed, by rotating the disc. This allows the paint to flow into the return material pipe through the dispensing pipe, and then the paint is transported back into the return material chamber by the rotating rod and the spiral feeding plate, thus realizing the return of the paint and facilitating the re-dyeing of the paint. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional front view of the entire invention; Figure 3 This is a cross-sectional side view of the entire invention; Figure 4 This is a top cross-sectional view of the location of the drive gear in this invention; Figure 5 For the present invention Figure 3 A partial structural diagram of part A in the middle.

[0018] In the diagram: 1. Storage mechanism; 101. Storage tank; 102. Seasoning chamber; 103. Degassing chamber; 104. Mixing chamber; 105. Feed pipe; 106. U-shaped feeding pipe; 107. Divider; 108. Distributor pipe; 2. Return mechanism; 201. Return pipe; 202. Rotating rod; 203. Top mounting block; 204. Support base; 205. Spiral feeding plate; 3. Stirring mechanism; 301. Servo motor; 30 2. Long rotating shaft; 303. Stirring rod; 304. Drive chain; 305. Short rotating shaft; 306. Drive gear; 307. Drive gear; 308. Driven gear; 309. Mixing head; 4. Adjusting mechanism; 401. Discharge pipe; 402. Rotating groove; 403. Rotating disc; 404. Fixed rod; 405. Rotating disc; 5. Vacuum pump; 6. Suction pipe; 7. Exhaust pipe; 8. Support leg; 9. Solenoid valve. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 5 An embodiment of the present invention provides a pretreatment device for deep coating for spraying the exterior wall of a steel structure factory building, including a storage mechanism 1, a return mechanism 2 on one side of the storage mechanism 1, a stirring mechanism 3 on the inner side of the storage mechanism 1, and an adjustment mechanism 4 at the bottom of the return mechanism 2. The storage mechanism 1 includes a storage tank 101, a seasoning chamber 102, a degassing chamber 103, a mixing chamber 104, a partition 107, and a distribution pipe 108. The interior of the storage tank 101 is divided into three areas from top to bottom: the seasoning chamber 102, the degassing chamber 103, and the mixing chamber 104. A partition 107 is fixedly installed between the seasoning chamber 102, the degassing chamber 103, and the mixing chamber 104. A distribution pipe 108 is fixedly installed on the bottom of the storage tank 101 near the return mechanism 2. The return material mechanism 2 includes a return material pipe 201, a rotating rod 202 and a spiral feeding plate 205. The return material pipe 201 is welded to the outer end of the distribution pipe 108. The top end of the return material pipe 201 is welded to one side of the top end of the storage tank 101. The rotating rod 202 is rotatably installed inside the return material pipe 201. The spiral feeding plate 205 is fixedly installed on the outer surface of the rotating rod 202.

[0021] The storage mechanism 1 also includes a feed pipe 105 and a U-shaped feed pipe 106. The feed pipe 105 is fixedly installed on the other side of the top of the storage tank 101. The U-shaped feed pipe 106 is fixedly connected between the mixing chamber 102 and the degassing chamber 103, and between the degassing chamber 103 and the mixing chamber 104. The mixing chamber 102 and the degassing chamber 103 are connected through the U-shaped feed pipe 106, and the degassing chamber 103 and the mixing chamber 104 are connected through the U-shaped feed pipe 106.

[0022] By coordinating the mixing chamber 102, the degassing chamber 103, and the mixing chamber 104, the coating material can pass through the interiors of the mixing chamber 102, the degassing chamber 103, and the mixing chamber 104 respectively during use, thereby performing dyeing, degassing, and thorough mixing pretreatment on the coating material. The process is compact and efficient, avoiding the time and space waste caused by traditional multi-equipment processing.

[0023] The return material mechanism 2 also includes a top mounting block 203 and a support base 204. The top mounting block 203 is rotatably mounted on the top end of the return material pipe 201, and the support base 204 is rotatably mounted on the bottom end of the return material pipe 201.

[0024] The stirring mechanism 3 includes a servo motor 301, a long rotating shaft 302, a stirring rod 303, and a transmission chain 304. The long rotating shaft 302 is rotatably installed inside the storage tank 101. The long rotating shaft 302 passes through the interior of the seasoning chamber 102, the degassing chamber 103, and the mixing chamber 104 from top to bottom. The servo motor 301 is located at the top of the long rotating shaft 302. The output end of the servo motor 301 is connected to the long rotating shaft 302 through a coupling. The stirring rod 303 is fixedly installed on the outer surface of the long rotating shaft 302 inside the seasoning chamber 102, the degassing chamber 103, and the mixing chamber 104. The transmission chain 304 is meshed with the outer surface of the long rotating shaft 302 at the top of the storage tank 101.

[0025] The stirring mechanism 3 also includes a short rotating shaft 305, a driving gear 306, a transmission gear 307, a driven gear 308, and a mixing head 309. The bottom end of the partition platform 107 located between the degassing chamber 103 and the mixing chamber 104 is provided with a short rotating shaft 305. The top end of the short rotating shaft 305 is rotatably connected to the partition platform 107. The mixing head 309 is fixedly installed at the bottom end of the short rotating shaft 305. The driven gear 308 is fixedly installed at the top end of the short rotating shaft 305. The transmission gear 307 is meshed with the outer surface of the driven gear 308. The driving gear 306 is meshed with the outer surface of the transmission gear 307. The driving gear 306 is fixedly connected to the long rotating shaft 302, and the axes of the driving gear 306 and the long rotating shaft 302 are collinear. The driving gear 306, the transmission gear 307, and the driven gear 308 are all rotatably installed inside the partition platform 107.

[0026] The adjusting mechanism 4 includes a discharge pipe 401, a rotating groove 402, a rotating disc 403, a fixed rod 404, and a rotating disk 405. The discharge pipe 401 is welded to the bottom end of the connection between the distribution pipe 108 and the return pipe 201. The inner side of the discharge pipe 401 is provided with a rotating groove 402. The fixed rod 404 is rotatably installed inside the rotating groove 402. The rotating disc 403 is fixedly installed on the outer surface of the fixed rod 404. The outer end of the fixed rod 404 extends through the surface of the discharge pipe 401 to the outer side of the discharge pipe 401. The rotating disk 405 is detachably installed at the outer end of the fixed rod 404.

[0027] With the cooperation of the return material mechanism 2 and the rotating disc 403, when the device is in use and it is necessary to re-dye the treated paint, the pipe between the distribution pipe 108 and the discharge pipe 401 can be closed by rotating the disc 403, so that the paint flows into the return material pipe 201 through the distribution pipe 108. Then, the paint is transported back into the return material chamber 102 by the rotating rod 202 and the spiral feeding plate 205, realizing the return of the paint and facilitating the re-dyeing of the paint.

[0028] The outer surface of the rotating rod 202 near the top end is engaged with the transmission chain 304.

[0029] The storage tank 101 is fixedly installed with three support legs 8 at the bottom. The U-shaped feeding pipe 106 and the distributing pipe 108 are both equipped with solenoid valves 9.

[0030] A vacuum pump 5 is fixedly installed on the outer surface of the storage tank 101 near the degassing chamber 103. The surface of the vacuum pump 5 is provided with an air intake pipe 6 and an air outlet pipe 7. The air intake pipe 6 is movably inserted into the interior of the degassing chamber 103.

[0031] A pretreatment method for a deep coating pretreatment device for exterior wall spraying of steel structure workshops, the pretreatment method including the following steps: Step A: First, pour the paint for exterior wall spraying into the storage tank 101 through the feed pipe 105, so that it enters the mixing chamber 102. At this time, start the servo motor 301, so that the servo motor 301 drives the long rotating shaft 302 to rotate, so that the long rotating shaft 302 drives the stirring rod 303 to stir the paint in the mixing chamber 102 to prevent the paint in the mixing chamber 102 from solidifying. At this time, the dye can be added into the mixing chamber 102 through the feed pipe 105 to adjust the color of the paint. Step B: After the paint color inside the mixing chamber 102 is adjusted, the paint inside the mixing chamber 102 can be fed into the degassing chamber 103 by opening the solenoid valve 9 inside the U-shaped feeding pipe 106 between the mixing chamber 102 and the degassing chamber 103 through the U-shaped feeding pipe 106. At this time, the paint continues to be stirred by the stirring rod 303 to avoid coagulation. After all the paint has entered the degassing chamber 103, the solenoid valve 9 is closed and the vacuum pump 5 is started. The vacuum pump 5 extracts the air inside the degassing chamber 103 through the suction pipe 6 to maintain a vacuum environment inside the degassing chamber 103, thereby degassing the paint inside the degassing chamber 103. Step C: After the coating inside the degassing chamber 103 has undergone degassing treatment, the solenoid valve 9 inside the U-shaped feeding pipe 106 between the degassing chamber 103 and the mixing chamber 104 can be opened to allow the coating inside the degassing chamber 103 to flow into the mixing chamber 104 through the U-shaped feeding pipe 106. At this time, the coating will accumulate at the position of the distribution pipe 108 while being stirred by the stirring rod 303 to prevent coagulation. When the long rotating shaft 302 rotates, it will drive the drive gear 306 to rotate synchronously, thereby driving the transmission gear 307 to rotate through the drive gear 306, and driving the driven gear 308 to rotate through the transmission gear 307, thereby driving the short rotating shaft 305 to rotate. The mixing head 309 at the bottom of the short rotating shaft 305 will perform fine stirring treatment on the coating accumulated at the position of the distribution pipe 108, so that the coating and dye are fully mixed and the colorant is avoided. Step D: After the paint inside the mixing chamber 104 is fully mixed by the mixing head 309, the solenoid valve 9 inside the distribution pipe 108 can be opened, allowing the paint inside the mixing chamber 104 to flow through the distribution pipe 108 to the connection between the return pipe 201 and the discharge pipe 401. At this time, the rotating disk 405 can be rotated, causing the fixed rod 404 to rotate, which in turn causes the rotating disc 403 to rotate. At this time, the rotating disc 403 will close the pipe from the distribution pipe 108 to the return pipe 201, thereby allowing the paint to be discharged through the discharge pipe 401. Step E: When the paint inside the mixing chamber 104 needs to be re-dyed, the rotating disk 405 can be rotated, causing the fixed rod 404 to rotate, which in turn drives the rotating disc 403 to rotate. At this time, the rotating disc 403 will close the pipe from the distribution pipe 108 to the discharge pipe 401, so that the paint flows into the return pipe 201 through the distribution pipe 108. When the long rotating shaft 302 rotates, it will drive the rotating rod 202 to rotate synchronously through the transmission chain 304, so that the rotating rod 202 drives the spiral feeding plate 205 on the surface to rotate, thereby transporting the paint that has entered the return pipe 201 to the uppermost position of the return pipe 201 through the spiral feeding plate 205, and making it flow back into the mixing chamber 102. The above steps are repeated, which makes it easy to re-dye the paint to adapt to different exterior wall coating construction.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pretreatment device for deep coating of steel structure factory exterior wall spraying, comprising a storage mechanism (1), characterized in that: The storage mechanism (1) is provided with a return mechanism (2) on one side, a stirring mechanism (3) is provided on the inner side of the storage mechanism (1), and an adjustment mechanism (4) is provided at the bottom of the return mechanism (2). The storage mechanism (1) includes a storage tank (101), a seasoning chamber (102), a degassing chamber (103), a mixing chamber (104), a partition (107), and a distribution pipe (108). The interior of the storage tank (101) is divided into three areas from top to bottom: the seasoning chamber (102), the degassing chamber (103), and the mixing chamber (104). A partition (107) is fixedly installed between the seasoning chamber (102), the degassing chamber (103), and the mixing chamber (104). A distribution pipe (108) is fixedly installed on the bottom of the storage tank (101) near the return material mechanism (2). The return material mechanism (2) includes a return material pipe (201), a rotating rod (202) and a spiral feeding plate (205). The return material pipe (201) is welded to the outer end of the distribution pipe (108). The top end of the return material pipe (201) is welded to one side of the top end of the storage tank (101). The rotating rod (202) is rotatably installed inside the return material pipe (201). The spiral feeding plate (205) is fixedly installed on the outer surface of the rotating rod (202).

2. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 1, characterized in that: The storage mechanism (1) also includes a feed pipe (105) and a U-shaped feed pipe (106). The feed pipe (105) is fixedly installed on the other side of the top of the storage tank (101). The U-shaped feed pipe (106) is fixedly connected between the seasoning chamber (102) and the degassing chamber (103) and between the degassing chamber (103) and the mixing chamber (104). The seasoning chamber (102) and the degassing chamber (103) are connected through the U-shaped feed pipe (106). The degassing chamber (103) and the mixing chamber (104) are connected through the U-shaped feed pipe (106).

3. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 2, characterized in that: The return material mechanism (2) further includes a top mounting block (203) and a support base (204). The top end of the return material pipe (201) is rotatably mounted with the top mounting block (203), and the bottom end of the return material pipe (201) is rotatably mounted with the support base (204).

4. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 3, characterized in that: The stirring mechanism (3) includes a servo motor (301), a long rotating shaft (302), a stirring rod (303), and a transmission chain (304). The long rotating shaft (302) is rotatably installed inside the storage tank (101). The long rotating shaft (302) runs from top to bottom through the interior of the seasoning chamber (102), the degassing chamber (103), and the mixing chamber (104). The top of the long rotating shaft (302) is equipped with a servo motor (301). The output end of the servo motor (301) is connected to the long rotating shaft (302) through a coupling. The stirring rod (303) is fixedly installed on the outer surface of the long rotating shaft (302) inside the seasoning chamber (102), the degassing chamber (103), and the mixing chamber (104). The transmission chain (304) is meshed with the outer surface of the long rotating shaft (302) at the top of the storage tank (101).

5. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 4, characterized in that: The stirring mechanism (3) further includes a short rotating shaft (305), a driving gear (306), a transmission gear (307), a driven gear (308), and a mixing head (309). The bottom end of the partition platform (107) located between the degassing chamber (103) and the mixing chamber (104) is provided with a short rotating shaft (305). The top end of the short rotating shaft (305) is rotatably connected to the partition platform (107), and the bottom end of the short rotating shaft (305) is fixedly mounted with the mixing head (309). A driven gear (308) is fixedly installed at the top. A transmission gear (307) is meshed with the outer surface of the driven gear (308). A driving gear (306) is meshed with the outer surface of the transmission gear (307). The driving gear (306) is fixedly connected to the long rotating shaft (302), and the axes of the driving gear (306) and the long rotating shaft (302) are collinear. The driving gear (306), transmission gear (307) and driven gear (308) are all rotatably installed inside the partition platform (107).

6. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 5, characterized in that: The adjustment mechanism (4) includes a discharge pipe (401), a rotating groove (402), a rotating disc (403), a fixed rod (404), and a rotating disk (405). The bottom end of the connection between the distribution pipe (108) and the return pipe (201) is welded to the discharge pipe (401). The inner side of the discharge pipe (401) is provided with a rotating groove (402). The fixed rod (404) is rotatably installed inside the rotating groove (402). The rotating disc (403) is fixedly installed on the outer surface of the fixed rod (404). The outer end of the fixed rod (404) extends through the surface of the discharge pipe (401) to the outer side of the discharge pipe (401). The rotating disk (405) is detachably installed at the outer end of the fixed rod (404).

7. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 4, characterized in that: The outer surface of the rotating rod (202) near the top end is engaged with the transmission chain (304).

8. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 2, characterized in that: The storage tank (101) is fixedly equipped with three support legs (8) at the bottom. The U-shaped feeding pipe (106) and the distributing pipe (108) are both equipped with solenoid valves (9).

9. The pretreatment equipment for deep coating of steel structure factory exterior wall spraying according to claim 2, characterized in that: A vacuum pump (5) is fixedly installed on the outer surface of the storage tank (101) near the degassing chamber (103). The surface of the vacuum pump (5) is provided with an air intake pipe (6) and an air outlet pipe (7). The air intake pipe (6) is movably inserted into the interior of the degassing chamber (103).

10. A pretreatment method for a pretreatment device for deep coating pretreatment of exterior walls of steel structure workshops according to any one of claims 1-9, characterized in that: The preprocessing method includes the following steps: Step A: First, pour the paint for exterior wall spraying into the storage tank (101) through the feed pipe (105) so that it enters the mixing chamber (102). At this time, start the servo motor (301) to drive the long rotating shaft (302) to rotate. The long rotating shaft (302) drives the stirring rod (303) to stir the paint in the mixing chamber (102) to prevent the paint in the mixing chamber (102) from solidifying. At this time, add dye to the mixing chamber (102) through the feed pipe (105) to adjust the color of the paint. Step B: After the color of the coating inside the mixing chamber (102) is adjusted, the coating inside the mixing chamber (102) can be fed into the degassing chamber (103) by opening the solenoid valve (9) inside the U-shaped feeding pipe (106) between the mixing chamber (102) and the degassing chamber (103). At this time, the coating continues to be stirred by the stirring rod (303) to avoid coagulation. After all the coating has entered the degassing chamber (103), the solenoid valve (9) is closed and the vacuum pump (5) is started. The vacuum pump (5) extracts the air inside the degassing chamber (103) through the suction pipe (6) to keep the degassing chamber (103) in a vacuum environment, thereby degassing the coating inside the degassing chamber (103). Step C: After the coating inside the degassing chamber (103) has undergone degassing treatment, the coating inside the degassing chamber (103) can flow into the mixing chamber (104) through the U-shaped feeding pipe (106) between the degassing chamber (103) and the mixing chamber (104) by opening the solenoid valve (9). At this time, the coating will be stirred by the stirring rod (303) to prevent coagulation, and will accumulate at the position of the distribution pipe (108). At this time, the long rotating shaft (302) When rotating, it will drive the drive gear (306) to rotate synchronously, thereby driving the transmission gear (307) to rotate through the drive gear (307), and driving the driven gear (308) to rotate through the transmission gear (307), thereby driving the short shaft (305) to rotate, so that the mixing head (309) at the bottom of the short shaft (305) can perform fine mixing on the paint accumulated at the position of the distribution pipe (108), so that the paint and dye are fully mixed and the coloring agent is avoided. Step D: After the paint inside the mixing chamber (104) is fully stirred by the mixing head (309), the solenoid valve (9) inside the distribution pipe (108) can be opened, so that the paint inside the mixing chamber (104) flows through the distribution pipe (108) to the connection between the return pipe (201) and the discharge pipe (401). At this time, the rotating disk (405) can be rotated, so that the rotating disk (405) drives the fixed rod (404) to rotate, thereby driving the rotating disc (403) to rotate. At this time, the rotating disc (403) will close the pipeline from the distribution pipe (108) to the return pipe (201), so that the paint is discharged through the discharge pipe (401). Step E: When it is necessary to re-dye the paint inside the mixing chamber (104), the rotating disk (405) can be rotated, causing the rotating disk (405) to drive the fixed rod (404) to rotate, thereby driving the rotating disc (403) to rotate. At this time, the rotating disc (403) will close the pipeline from the dispensing pipe (108) to the discharge pipe (401), so that the paint flows into the return pipe (201) through the dispensing pipe (108). At this time, the long rotating shaft (302) is rotating. When the transmission chain (304) drives the rotating rod (202) to rotate synchronously, the rotating rod (202) drives the spiral feeding plate (205) on the surface to rotate, and then the paint entering the return pipe (201) is transported to the uppermost position of the return pipe (201) through the spiral feeding plate (205), and then flows back into the mixing chamber (102). The above steps are repeated, so that it can be easily re-dyed to adapt to different exterior wall coating construction.

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