Prefabricated building metal fitting rust-proof coating spraying device

Abstract

The utility model relates to the field of fabricated building especially relates to assembled building metal fittings rustproof coating spraying device, including mounting panel and installation strip, the front surface of mounting panel is provided with the connecting strip, the other end of connecting strip is connected with the rotary frame through the rotating part, and the rotary frame is fixedly installed with spraying assembly, is used for rustproof coating spraying to metal fittings, and the front surface downside of mounting panel is provided with drive assembly, the rear surface of rotary frame is provided with first adjusting assembly, first adjusting assembly is assembled with second adjusting assembly, and second adjusting assembly is connected with drive assembly, can make rotary frame carry out up and down angle adjustment to adjust the spraying angle, two are set up between two installation strips limit component and moving component, the utility model can carry out simulation spraying, guarantee the spraying uniformity of rustproof coating, can carry out flexible adjustment to spraying angle, improve spraying efficiency, and adapt to each type metal fittings.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated buildings, and in particular to a rust-proof coating spraying device for metal fittings of prefabricated buildings. Background Technology

[0002] In the field of prefabricated buildings, metal fittings are widely used for structural connections and supports due to their high strength and modularity. However, metal fittings exposed to air for extended periods are susceptible to corrosion from environmental factors such as moisture and oxygen, which reduces their service life and structural safety. To address this issue, anti-rust coatings are typically applied to the surface of metal fittings to improve their corrosion resistance.

[0003] The utility model patent with patent publication number CN221656917U discloses a metal high-temperature resistant rust-proof coating spraying equipment, which uses top spraying to spray the rust-proof coating. However, in the field of prefabricated buildings, metal accessories are mostly connecting plates, bolts, embedded parts, etc. When spraying these, the spraying angle adjustment of this equipment is not flexible enough, making it difficult to adapt to metal accessories of different shapes and sizes, resulting in poor spraying uniformity. In addition, the equipment can only perform single-sided spraying, which affects its spraying efficiency.

[0004] Therefore, it is necessary to further improve the anti-rust coating spraying device for metal fittings of prefabricated buildings. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a rust-proof coating spraying device for prefabricated building metal accessories. It can perform simulated spraying, ensure the uniformity of the rust-proof coating, flexibly adjust the spraying angle to improve spraying efficiency, and adapt to various types of metal accessories, thus effectively solving the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rust-proof coating spraying device for prefabricated building metal fittings, comprising an installation plate and an installation strip, wherein a connecting strip is provided on the front surface of the installation plate, and the other end of the connecting strip is connected to a rotating frame via a rotating component, and a spraying assembly is fixedly installed on the rotating frame for spraying a rust-proof coating onto the metal fittings; a driving assembly is provided on the lower side of the front surface of the installation plate.

[0007] The rear surface of the rotating frame is provided with a first adjustment component, and the first adjustment component is equipped with a second adjustment component. The second adjustment component is connected to the drive component, which can make the rotating frame adjust up and down to adjust the spraying angle.

[0008] There are two mounting strips, one above the other. A limit component and a moving component are set between the two mounting strips. The limit component and the moving component are connected to the mounting plate. The limit component is used to restrict the movement trajectory of the mounting plate, and the moving component is used to realize the linear up and down movement of the mounting plate.

[0009] Preferably, the limiting component includes a limiting rod and a limiting slider. The limiting rod is slidably assembled in the sliding hole of the limiting slider. Both ends of the limiting rod are connected to the mounting strips arranged above and below. The limiting slider is fixedly connected to the mounting plate, which can guide the stable movement of the mounting plate.

[0010] Preferably, the moving component includes a connecting seat and a linear slide. The linear slide is connected to the mounting strips arranged above and below. The connecting seat is connected to the sliding table of the linear slide. The connecting seat is fixedly connected to the mounting plate. The linear slide provides a linear motion track to achieve smooth movement of the mounting plate.

[0011] Preferably, the spraying assembly includes a T-connector, a nozzle, and a spraying pipe. The spraying pipe is fixedly mounted on the rotating frame, the nozzle is mounted at the spraying port of the spraying pipe, and the T-connector is mounted at the feed inlet of the spraying pipe to connect to an external feeding system for uniform spraying.

[0012] Preferably, the drive assembly includes a crank, a fixed plate, and a servo motor. The fixed plate is disposed on the lower side of the front surface of the mounting plate, and the servo motor is mounted on the fixed plate. The output shaft of the servo motor passes through a through hole in the fixed plate and is keyed to one end of the crank. The servo motor provides driving force to make the crank rotate.

[0013] Preferably, the first adjustment component includes an adjustment groove and a fixing bar, the fixing bar is disposed on the rear surface of the rotating frame, and the adjustment groove is formed on the fixing bar.

[0014] Preferably, the second adjustment assembly includes a locking bolt group, an adjustment clamp, and an adjustment rod. The locking bolt group is disposed in the adjustment groove. The adjustment clamp is installed on the outside of the fixed bar through the locking bolt group. The adjustment clamp can be positioned on the fixed bar and locked in place. One end of the adjustment rod is connected to the lower surface of the adjustment clamp through a rotating component, and the other end of the adjustment rod is rotatably connected to one end of a crank through a rotating component. The length of the adjustment rod can be adjusted to achieve precise angle adjustment. The crank can provide power to the adjustment rod to ensure the up-and-down swing of the rotating frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the modular design of the mounting plate, mounting strip, limiting components, and moving components, the spraying positioning is ensured to be accurate and stable. The limiting components restrict the lateral displacement of the mounting plate, and the linear slide achieves smooth linear movement, adapting to various sizes of accessories. Compared with existing technologies, the device stability is improved, the coating defect rate is reduced, the modular design facilitates maintenance, and production efficiency is improved.

[0017] 2. The spraying assembly, combined with the rotating frame, the first adjustment assembly, and the second adjustment assembly, enables flexible angle adjustment. The servo motor drives the crank, and the rotating frame is precisely controlled to swing through the adjustment rod and adjustment groove, mimicking manual spraying to ensure the uniformity of the anti-rust coating. It can flexibly adjust the spraying angle to improve spraying efficiency.

[0018] 3. It adopts a combination of servo control and mechanical transmission, which is easy to operate and highly automated. The crank and adjusting rod have a simple structure, low failure rate, and reduced maintenance costs. It can be installed on both sides of the spraying rack to achieve double-sided spraying, improve efficiency, and is suitable for the large-scale spraying needs of prefabricated buildings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view of the structure of this utility model;

[0021] Figure 3 This is an enlarged structural diagram of part A of this utility model;

[0022] Figure 4 This is a schematic diagram of the rear view structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 2. Rotating frame; 3. Spraying assembly; 301. T-joint; 302. Spray nozzle; 303. Spraying pipe; 4. Connecting strip; 5. Drive assembly; 501. Crank; 502. Fixing plate; 503. Servo motor; 6. Limiting assembly; 601. Limiting rod; 602. Limiting slider; 7. Moving assembly; 701. Connecting seat; 702. Linear slide; 8. Mounting strip; 9. First adjusting assembly; 901. Adjusting groove; 902. Fixing strip; 10. Second adjusting assembly; 1001. Locking bolt group; 1002. Adjusting clamp; 1003. Adjusting rod. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating directional or positional relationships, they are based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this application and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0026] Please see Figure 1-4 The present invention provides the following technical solution:

[0027] The rust-proof coating spraying device for prefabricated building metal fittings uses a mounting strip 8, a limiting component 6, and a moving component 7 as its basic frame to achieve precise positioning of the spraying component 3. The angle of the spraying component 3 is adjusted via a first adjusting component 9, a second adjusting component 10, and a rotating frame 2, ensuring efficient and uniform spraying. The device adopts a modular design for easy assembly and maintenance. This spraying device can be installed on both sides of an external conveyor-type spraying rack to achieve simultaneous spraying of opposing surfaces.

[0028] Mounting plate 1 is a T-shaped flat plate structure, optionally made of 5mm thick aluminum alloy sheet, which has the advantages of being lightweight and high-strength, and is easy to fix to the moving component 7. A connecting strip 4 is fixedly welded to the center of the front surface of mounting plate 1. The connecting strip 4 is made of rectangular steel, optionally stainless steel, to enhance corrosion resistance. The other end of the connecting strip 4 is pivotally connected to the rotating frame 2 via a rotating component (such as a movable hinge). The rotating frame 2 is a U-shaped bracket, optionally made of aluminum alloy profile, which has good rigidity and fatigue resistance. A spraying component 3 is fixedly mounted on the rotating frame 2 for spraying an anti-rust coating on metal parts.

[0029] The spraying assembly 3 includes a T-joint 301, a nozzle 302, and a spraying pipe 303. The spraying pipe 303 is fixedly mounted on the rotating frame 2. The nozzle 302 is installed at the spraying port of the spraying pipe 303. The T-joint 301 is installed at the feed inlet of the spraying pipe 303 to connect to an external feeding system for uniform spraying. The external feeding system connects to the T-joint 301 to input rust-preventive coating into the spraying pipe 303, and the coating is uniformly sprayed from the nozzle 302.

[0030] When the rotating frame 2 rotates up and down, it drives the entire spraying assembly 3 to rotate, thus adjusting the angle. Metal parts are suspended on an external conveyor-type spraying hanger. After the material supply is started, the spraying assembly 3 can cover the surface of the parts through the swinging motion of the rotating frame 2. The fixed installation of the spraying pipe 303 improves spraying stability.

[0031] A mounting plate 502 is fixed to the lower side of the front surface of the mounting plate 1 by screws. The mounting plate 502 is a rectangular support structure, and the optional material is Q235 steel plate, which has high strength. The servo motor 503 is mounted to the mounting plate 502 by screws. The output shaft of the servo motor 503 passes through the through hole of the mounting plate 502 and is keyed to the crank 501. The drive assembly 5 provides rotational power through the servo motor 503, which drives the crank 501 to rotate, thereby driving the second adjustment assembly 10 to move up and down. The second adjustment assembly 10 causes the rotating frame 2 to swing through the first adjustment assembly 9.

[0032] The fixed plate 502 supports the servo motor 503, and the crank 501 is connected to the adjusting rod 1003 of the second adjusting component 10 through the rotating part to realize power transmission.

[0033] In use, the servo motor 503 drives the crank 501, which in turn drives the rotating frame 2 to adjust the spraying direction via the second and first adjustment components 9. The drive component 5 provides precise power and controls the angle of the rotating frame 2. The simple structure of the crank 501 reduces the failure rate and maintenance costs.

[0034] A fixing strip 902 is welded to the rear surface of the rotating frame 2. The fixing strip 902 is a long strip structure and can be made of aluminum alloy to reduce weight. An adjustment groove 901 is formed on the fixing strip 902. The adjustment groove 901 is a rectangular groove that matches the rotation range. The spraying angle can be adjusted by adjusting the fixed position of the second adjustment component 10 on the fixing strip 902.

[0035] The fixing bar 902 serves as a base, and a locking bolt assembly 1001 is installed within the adjusting groove 901 to fix the position of the adjusting clamp 1002. After the adjusting clamp 1002 slides within the adjusting groove 901, it is locked by the locking bolt assembly 1001 to ensure the stability of the adjusting clamp 1002. The first adjusting component 9 provides the basis for angle adjustment, and the adjusting groove 901 defines the angle adjustment range. The linear adjusting groove 901 is designed to facilitate quick adjustment of the swing angle of the rotating frame 2, accommodating various types of accessories.

[0036] The second adjusting assembly 10 includes a locking bolt group 1001, an adjusting clamp 1002, and an adjusting rod 1003. The locking bolt group 1001 consists of M8 bolts and nuts, and can be made of high-strength alloy steel, offering high wear resistance. The adjusting clamp 1002 is a U-shaped clamp, installed on the outside of the fixing strip 902 via the locking bolt group 1001, allowing it to slide and lock securely on the fixing strip 902. The adjusting rod 1003 is an adjustable-length telescopic rod, and can be made of carbon fiber tubing, balancing lightweight and high rigidity. One end of the adjusting rod 1003 is connected to the lower surface of the adjusting clamp 1002 via a rotating component (such as a hinge), and the other end is rotatably connected to one end of the crank 501 via a rotating component.

[0037] The adjusting rod 1003 allows for further adjustment of the swing angle of the rotating frame 2 through length adjustment, ensuring the uniformity of the anti-rust coating spraying. The rotation of the crank 501 drives the adjusting rod 1003 to rise and fall, enabling the rotating frame 2 to swing up and down. The extension and retraction of the adjusting rod 1003 are achieved through internal threads, and the rotating parts ensure smooth transmission. The locking bolt group 1001 fixes the adjusting clamp 1002 to prevent displacement.

[0038] The servo motor 503 is activated, and the crank 501 drives the adjusting rod 1003 to swing the rotating frame 2, mimicking the swinging spraying motion of a real person during spraying, ensuring uniform spraying. The second adjusting component 10 enables precise angle fine-tuning. The adjustability of the adjusting rod 1003 enhances flexibility, and the crank 501 drive ensures smooth swinging.

[0039] Two mounting strips 8 are provided vertically, and the optional material is hard aluminum alloy profile, which is highly precise and corrosion-resistant. A limiting component 6 and a moving component 7 are provided between the two mounting strips 8. The limiting component 6 restricts the movement trajectory of the mounting plate 1, and the moving component 7 enables the vertical linear movement of the mounting plate 1.

[0040] The limiting component 6 includes a limiting rod 601 and a limiting slider 602. The limiting rod 601 is a cylindrical rod that is slidably assembled in the sliding hole of the limiting slider 602. Both ends of the limiting rod 601 are fixedly connected to the upper and lower mounting strips 8, and the limiting slider 602 is fixedly connected to the mounting plate 1.

[0041] The limiting slider 602 slides along the limiting rod 601, limiting lateral offset and ensuring vertical movement. The limiting rod 601 provides guidance, and lubricant inside the sliding hole reduces friction. The moving assembly 7 drives the mounting plate 1 to move up and down, with the limiting slider 602 guiding the trajectory. The limiting assembly 6 ensures movement stability, and the sliding design improves accuracy and prevents spraying wobbling.

[0042] The moving component 7 includes a connecting base 701 and a linear slide 702. The linear slide 702 is fixedly connected to the upper and lower mounting strips 8. The linear slide 702 is a built-in enclosed linear slide, with wiring and mechanisms concealed to prevent paint from entering the interior of the linear slide 702. The linear slide 702 provides a linear motion track. The connecting base 701 is connected to the sliding surface of the linear slide 702 and fixedly connected to the mounting plate 1.

[0043] The ball bearings or guide rail system of the linear slide 702 enables low-friction movement. The connecting seat 701 transmits force to the mounting plate 1, ensuring the vertical movement of the mounting plate 1. The slide table is bolted to the connecting seat 701 and moves synchronously. The linear slide 702 drives the connecting seat 701, thereby causing the mounting plate 1 to move up and down along the linear slide 702 to adjust the spraying height.

[0044] The moving component 7 enables smooth linear movement. The high-precision track of the linear slide 702 reduces wear and is suitable for high-volume painting.

[0045] The working principle and usage method of this utility model are as follows:

[0046] Working principle: The prefabricated building metal fitting anti-rust coating spraying device of this utility model forms a basic frame through a modularly designed mounting plate 1, mounting strip 8, limiting component 6 and moving component 7, which ensures the accurate positioning and stable movement of the spraying component 3; the up and down angle adjustment of the spraying component 3 is realized through the first adjusting component 9, the second adjusting component 10 and the rotating frame 2; and the power is provided by the drive component 5 to realize automated spraying.

[0047] The device operates on the principle of synergy between mechanical transmission and servo control. Specifically, the servo motor 503 drives the crank 501, which in turn is linked to the rotating frame 2 via the adjusting rod 1003, controlling the angular swing of the spraying assembly 3. Simultaneously, the mounting plate 1 moves linearly up and down via the moving assembly 7 and the limiting assembly 6 to accommodate metal parts of different sizes. The spraying assembly 3 delivers rust-preventive coating through an external feeding system. After being diverted by the tee connector 301, the coating is evenly sprayed onto the surface of the metal parts by the nozzle 302, completing the rust-preventive treatment.

[0048] Mounting plate 1 serves as the main support for the device, cooperating with limiting component 6 and moving component 7 to ensure stable vertical movement. Limiting rod 601 and limiting slider 602 of limiting component 6 restrict the lateral displacement of mounting plate 1 through a sliding fit. Limiting rod 601 is fixed to the upper and lower mounting strips 8, and limiting slider 602 is fixed to mounting plate 1. Lubricant inside the sliding hole reduces friction, ensuring precise movement trajectory. The linear slide 702 of moving component 7 provides a low-friction linear motion track through a built-in ball bearing or guide rail system. Connecting seat 701 is fixedly connected to the sliding table of linear slide 702 and mounting plate 1, transmitting moving force to allow mounting plate 1 to move vertically along the track, adjusting the spraying height. This cooperation ensures the stability of the device during spraying, prevents shaking, and improves spraying accuracy.

[0049] The spraying assembly 3 is connected to an external supply system via a three-way connector 301. The anti-rust coating is delivered to the nozzle 302 via the spraying pipe 303, and the nozzle 302 sprays the coating onto the surface of the metal parts with a uniform atomization effect. The spraying pipe 303 is fixed to the rotating frame 2, which is connected to the mounting plate 1 via a connecting strip 4 and a rotating component (such as a movable hinge). The rotating component allows the rotating frame 2 to swing up and down, thereby adjusting the spraying angle.

[0050] The servo motor 503 of the drive assembly 5 provides rotational power, and the output shaft drives the crank 501 to rotate via a key connection. The crank 501 is connected to the adjusting rod 1003 of the second adjusting assembly 10 via a rotating component. The telescopic design of the adjusting rod 1003 further fine-tunes the swing angle of the rotating frame 2. The adjusting clamp 1002 of the second adjusting assembly 10 is fixed in the adjusting groove 901 of the first adjusting assembly 9 by the locking bolt group 1001. The adjusting groove 901 limits the sliding range. The sliding and locking of the adjusting clamp 1002 achieves the initial positioning of the angle. Combined with the length adjustment of the adjusting rod 1003, it ensures that the spraying assembly 3 is accurately aligned with the metal parts.

[0051] After the servo motor 503 starts, the rotational power is transmitted to the adjusting rod 1003 via the crank 501. The adjusting rod 1003 drives the rotating frame 2 to swing up and down, thereby adjusting the spraying angle of the spraying assembly 3. At the same time, the mounting plate 1 moves linearly up and down through the coordinated action of the linear slide 702 and the limiting assembly 6, adjusting the spraying height. The anti-rust coating is evenly sprayed onto the surface of the parts through the spraying assembly 3. This linkage mechanism simulates the flexibility of manual spraying while improving the degree of automation and spraying uniformity.

[0052] How to use:

[0053] Device installation: Fix the two devices symmetrically to the external conveyor spraying hanger or working frame, ensuring that the spraying assembly 3 can be aligned with the spraying hanger. The sliding table of the linear slide 702 is bolted to the connecting seat 701, and the limiting slider 602 is fixed to the mounting plate 1, ensuring that the mounting plate 1 can move up and down along the mounting strip 8 and the trajectory is stable.

[0054] Material supply system connection: Connect the T-connector 301 of the spraying assembly 3 to the external material supply system to ensure that the anti-rust coating can be delivered to the nozzle 302 through the spraying pipe 303. Check the fixing of the spraying pipe 303 and the nozzle 302, and confirm that the spraying nozzle 302 is unobstructed and the pressure of the material supply system is normal.

[0055] Angle Adjustment: Loosen the locking bolt group 1001 of the second adjusting component 10, slide the adjusting clamp 1002 into the adjusting groove 901 of the first adjusting component 9, adjust to the desired initial position, and then tighten the locking bolt group 1001 to lock the adjusting clamp 1002. Adjust the length of the adjusting rod 1003 of the second adjusting component 10, extending and retracting it to a suitable length through the internal thread, so as to initially set the swing angle of the rotating frame 2 according to the volume of the workpiece.

[0056] Spraying preparation: Suspend the metal parts on the external conveyor spraying rack and adjust their position so that they are within the spraying path of the spraying assembly 3. Start the servo motor 503 and control the swing frequency of the rotating frame 2 by adjusting the rotation speed of the servo motor 503 through the control panel. The servo motor 503 drives the crank 501, which in turn drives the rotating frame 2 to swing through the adjusting rod 1003, thereby adjusting the spraying direction of the spraying assembly 3.

[0057] Spraying Operation: The external material supply system is activated, and the anti-rust coating enters the spray pipe 303 through the tee connector 301, and is evenly sprayed from the nozzle 302. The operator controls the linear slide 702 to move the mounting plate 1 up and down, adjusting the spraying height to ensure that the coating covers the entire surface of the metal parts. Simultaneously, the servo motor 503 continuously drives the rotating frame 2 to swing, mimicking the dynamic adjustment of manual spraying to cover the surface of the parts at different angles.

[0058] Completion and Maintenance: After spraying, shut down the feeding system and servo motor 503, and check the coating uniformity. Regularly clean the spray nozzle 302 and spray pipe 303 to prevent paint clogging; check the lubrication of the linear slide 702 and limit slider 602 to ensure smooth movement. The device is detachable for cleaning and easy maintenance.

[0059] It is worth noting that the external controller is electrically connected to the servo motor 503 and the linear slide 702 to ensure that the operator can control the operation of the servo motor 503 and the linear slide 702 through the external controller.

[0060] The linear slide 702 can be Shenghexin's CEA-112M1 model, and the servo motor 503 can be Huichuan Technology's IS620N series.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rust-proof coating spraying device for prefabricated building metal fittings, comprising a mounting plate (1) and mounting strips (8), characterized in that: The front surface of the mounting plate (1) is provided with a connecting strip (4), and the other end of the connecting strip (4) is connected to a rotating frame (2) through a rotating component. A spraying component (3) is fixedly installed on the rotating frame (2) for spraying anti-rust coating on metal parts. A drive component (5) is provided on the lower side of the front surface of the mounting plate (1). The rear surface of the rotating frame (2) is provided with a first adjustment component (9), and the first adjustment component (9) is equipped with a second adjustment component (10). The second adjustment component (10) is connected to the drive component (5) so that the rotating frame (2) can be adjusted up and down to adjust the spraying angle. There are two mounting strips (8) on the top and bottom respectively. A limit component (6) and a moving component (7) are set between the two mounting strips (8). The limit component (6) and the moving component (7) are connected to the mounting plate (1). The limit component (6) is used to limit the movement trajectory of the mounting plate (1), and the moving component (7) is used to realize the vertical linear movement of the mounting plate (1).

2. The rust-proof coating spraying device for prefabricated building metal fittings according to claim 1, characterized in that: The limiting component (6) includes a limiting rod (601) and a limiting slider (602). The limiting rod (601) is slidably assembled in the sliding hole of the limiting slider (602). The two ends of the limiting rod (601) are connected to the mounting strips (8) arranged above and below. The limiting slider (602) is fixedly connected to the mounting plate (1) and can guide the stable movement of the mounting plate (1).

3. The rust-proof coating spraying device for prefabricated building metal fittings according to claim 1, characterized in that: The moving component (7) includes a connecting seat (701) and a linear slide (702). The linear slide (702) is connected to the mounting strips (8) arranged above and below. The connecting seat (701) is connected to the sliding table of the linear slide (702). The connecting seat (701) is fixedly connected to the mounting plate (1). The linear slide (702) provides a linear motion track to achieve smooth movement of the mounting plate (1).

4. The rust-proof coating spraying device for prefabricated building metal fittings according to claim 1, characterized in that: The spraying assembly (3) includes a three-way connector (301), a nozzle (302), and a spraying pipe (303). The spraying pipe (303) is fixedly installed on the rotating frame (2). The nozzle (302) is installed at the spraying port of the spraying pipe (303). The three-way connector (301) is installed at the feed port of the spraying pipe (303) to connect to an external feeding system for uniform spraying.

5. The rust-proof coating spraying device for prefabricated building metal fittings according to claim 1, characterized in that: The drive assembly (5) includes a crank (501), a fixed plate (502), and a servo motor (503). The fixed plate (502) is disposed on the lower side of the front surface of the mounting plate (1). The servo motor (503) is mounted on the fixed plate (502). The output shaft of the servo motor (503) passes through the through hole of the fixed plate (502) and is keyed to one end of the crank (501). The servo motor (503) provides driving force to make the crank (501) rotate.

6. The rust-proof coating spraying device for prefabricated building metal fittings according to claim 1, characterized in that: The first adjustment component (9) includes an adjustment groove (901) and a fixing bar (902). The fixing bar (902) is disposed on the rear surface of the rotating frame (2), and the adjustment groove (901) is formed on the fixing bar (902).

7. The rust-proof coating spraying device for prefabricated building metal fittings according to claim 6, characterized in that: The second adjustment assembly (10) includes a locking bolt group (1001), an adjustment clamp (1002), and an adjustment rod (1003). The locking bolt group (1001) is set in the adjustment groove (901). The adjustment clamp (1002) is installed on the outside of the fixing bar (902) through the locking bolt group (1001). The adjustment clamp (1002) can be adjusted in position on the fixing bar (902) and locked in place. One end of the adjustment rod (1003) is connected to the lower surface of the adjustment clamp (1002) through a rotating component. The other end of the adjustment rod (1003) is rotatably connected to one end of the crank (501) through a rotating component. The length of the adjustment rod (1003) can be adjusted to achieve precise angle adjustment. The crank (501) can provide power to the adjustment rod (1003) to ensure the up-and-down swing of the rotating frame (2).

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