Vehicle frame paint spraying device

Abstract

The invention relates to the field of paint spraying devices, in particular to a vehicle frame paint spraying device. The spraying device comprises a paint room, a top frame, a rotating cover and a spraying mechanism, a lifting hook is arranged at the top inside the paint room; the spraying mechanisms comprise paint spraying mechanisms and air spraying mechanisms, each paint spraying mechanism comprises a paint conveying pipe, a spherical paint cover and a plurality of paint spraying heads communicated to the spherical paint cover which are communicated from top to bottom, and each air spraying mechanism comprises a ventilation pipe, a spherical air cover and a plurality of air spraying assemblies uniformly communicated to the spherical air cover which are communicated from top to bottom; the spherical paint cover is located on the inner side of the spherical gas cover, and a gas cavity is formed between the spherical paint cover and the spherical gas cover. The rotating cover is rotationally arranged on the spherical gas cover and comprises a plugging plate part for intermittently plugging the paint spraying head, impact plate parts distributed on the outer side of the plugging plate part in a staggered mode and a connecting plate part blown by the gas spraying assembly. According to the paint spraying device, the blockage probability is reduced through intermittent paint spraying of the paint spraying head, paint on the paint spraying head is scraped off in a scraping mode, and the paint spraying head is prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of painting equipment, and in particular to a vehicle frame painting equipment. Background Technology

[0002] All-terrain vehicles have good off-road performance and can travel on beaches, riverbeds, forest roads, streams, and harsh desert terrain. They can carry people or transport goods. The frame of an all-terrain vehicle needs to ensure sufficient structural strength and can improve rust resistance through painting.

[0003] Chinese Patent Publication No. CN217190386U discloses a painting device for surface treatment of electric vehicle frames, including a base, a protective cover mounted on the top of the base, through grooves on the front and rear surfaces of the protective cover, a painting device mounted on the protective cover, a motor mounted on the top of the base, with the motor's spindle end connected to the bottom of the protective cover, a baffle mounted on the top of the inside of the protective cover, and a telescopic device mounted on the side of the protective cover near the baffle, with a scraper mounted at the end of the telescopic device, and a container installed inside the protective cover. This painting device, by mounting a protective cover on the base, helps improve the surface painting quality of the workpiece and reduces the labor intensity of workers. By installing a container inside the protective cover, it facilitates cleaning of the painting device and helps extend its service life.

[0004] However, the above technical solution has the following shortcomings: when the nozzle sprays paint onto the workpiece, paint residue is easily left on the nozzle. After the paint solidifies, it is easy to clog the nozzle, making it impossible for the nozzle to spray out atomized paint evenly, or even making it impossible to spray paint at all. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a vehicle frame painting device that reduces the probability of clogging by intermittently spraying paint from the paint nozzle and prevents the paint nozzle from being clogged by scraping off the paint at the paint nozzle.

[0006] The technical solution of this invention is a vehicle frame painting device, comprising a paint booth, a top frame, a rotating hood, and a spraying mechanism; a hook is provided on the top inner side of the paint booth; the spraying mechanism comprises multiple sets, including a painting mechanism and an air spraying mechanism. The painting mechanism includes a paint supply pipe connected from top to bottom, a spherical paint cover, and multiple paint spray heads connected to the spherical paint cover, with the paint spray heads radially distributed along the spherical paint cover. The air spraying mechanism includes a vent pipe connected from top to bottom, a spherical air cover, and multiple sets of air spraying components uniformly connected to the spherical air cover; the vent pipe is fitted outside the paint supply pipe, the spherical paint cover is located inside the spherical air cover, and an air cavity is formed between the spherical paint cover and the spherical air cover. The paint spray head passes through the air chamber and extends out of the spherical air hood; the rotating hood is rotatably mounted on the spherical air hood, including a blocking plate part that intermittently blocks the paint spray head, an impact plate part that is staggered outside the blocking plate part, and a connecting plate part that is blown by the air jet assembly. The connecting plate part is inclinedly connected between the blocking plate part and the impact plate part. Both the blocking plate part and the impact plate part are spherical arc plate structures and are eccentrically distributed. The blocking plate part and the spherical air hood are concentric. The blocking plate part scrapes the paint at the paint spray head using the front end in the direction of rotation. The top of the top frame is equipped with a paint feeding mechanism for feeding paint to the painting mechanism, an air feeding mechanism for feeding air to the air jet mechanism, and a winch for lifting and spraying the mechanism.

[0007] Preferably, the jet assembly includes two jet heads distributed in a V-shape, the jet directions of the two jet heads intersecting on the spray direction path of the paint spray head, and the jet heads facing the connecting plate portion.

[0008] Preferably, among the multiple spraying mechanisms, one group is a central spraying mechanism and the rest are peripheral spraying mechanisms; in the central spraying mechanism, multiple paint spray heads are evenly distributed radially from the center of a spherical paint cover, and each paint spray head corresponds to a jetting component; in the peripheral spraying mechanism, multiple paint spray heads are evenly distributed radially from the center of a fan-shaped paint cover, and the number of paint spray heads is less than the number of jetting components.

[0009] Preferably, the paint delivery mechanism includes a pump, a diversion pipe, a paint inlet pipe, and multiple sets of connecting components. The pump is mounted on the top frame. The diversion pipe has a paint inlet end, a central paint outlet end, and multiple peripheral paint outlet ends. The pump, the paint inlet pipe, and the paint inlet end of the diversion pipe are connected in sequence. The paint delivery pipe in the central spraying mechanism is connected to the central paint outlet end of the diversion pipe. The peripheral paint outlet ends of the diversion pipe, the connecting components, and the paint delivery pipe in the peripheral spraying mechanism are connected in sequence.

[0010] Preferably, the connecting component includes a connecting pipe that communicates with the paint supply pipe in the peripheral spraying mechanism, a flexible hose that communicates between the paint outlet end of the diverter pipe and the connecting pipe, a connecting bracket disposed on the connecting pipe, a mounting bracket disposed on the diverter pipe, and a telescopic device disposed on the mounting bracket and whose movable end is connected to the connecting bracket.

[0011] Preferably, the vent pipe is slidably connected to a slide cylinder; the slide cylinder corresponding to the vent pipe in the intermediate spraying mechanism is located on the top of the paint booth; the top of the paint booth has multiple movable channels, and slide rails are provided at the movable channels, with sliders slidably mounted on the slide rails; the vent pipe in the peripheral spraying mechanism passes through the movable channels, and the corresponding slide cylinder is mounted on the slider.

[0012] Preferably, the air delivery mechanism includes an air compressor, an air inlet pipe, and a connecting cylinder connected in sequence, as well as multiple hoses connected to the connecting cylinder. The air compressor is mounted on the top frame. The air pipe in the intermediate injection mechanism has an air inlet. The connecting cylinder is fitted onto the air pipe in the intermediate injection mechanism and communicates with the air inlet. The end of the hose away from the connecting cylinder is connected to the air pipe in the peripheral injection mechanism.

[0013] Preferably, the diameter of the ball in the sealing plate section is smaller than that in the impact plate section. The rotating cover also includes a rotating ring one and a rotating ring two distributed at the upper and lower ends. The rotating ring one is rotatably mounted on the spherical air cover, and the rotating ring two is provided with a rotating shaft, which is rotatably mounted on the spherical air cover.

[0014] Preferably, a stirrer is connected to the top of the rotating shaft, and the stirrer includes a stirring shaft with a rotating seal disposed on a spherical paint cover and stirring blades disposed on the stirring shaft.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: In the process of painting the vehicle frame, the airflow from the jet assembly can atomize the paint sprayed from the paint nozzle, which is beneficial for the paint to adhere to the vehicle frame. The airflow from the jet assembly can also blow the eccentrically distributed rotating shroud. The rotating shroud intermittently seals the paint nozzle with the sealing plate, making the paint nozzle less prone to clogging. In addition, the front end of the sealing plate can scrape off the paint at the paint nozzle outlet, improving the cleaning effect and further preventing paint from clogging the paint nozzle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 for Figure 1 A partial structural sectional view; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a partial structural diagram of the intermediate injection mechanism; Figure 5 This is a partial structural cross-sectional view of the intermediate injection mechanism; Figure 6 This is a schematic diagram of the rotating cover. Figure 7 This is a partial structural diagram of the peripheral injection mechanism.

[0017] Attached reference numerals: 1. Paint booth; 2. Top frame; 3. Pump; 4. Air compressor; 5. Winch; 51. Rope; 6. Connecting block; 7. Diverter pipe; 8. Paint inlet pipe; 9. Paint delivery pipe; 10. Vent pipe one; 101. Air inlet; 11. Connecting cylinder; 12. Air inlet pipe; 13. Hose two; 14. Mounting bracket; 15. Telescopic device; 16. Connecting bracket; 17. Hose one; 18. Connecting pipe; 19. 20. Vent pipe 2; 21. Air hood 1; 22. Air hood 2; 23. Paint hood 1; 24. Paint hood 2; 25. Spray nozzle; 26. Air jet nozzle; 27. Rotating hood; 28. Sealing plate; 29. ​​Impact plate; 20. Rotating ring 1; 21. Rotating ring 2; 22. Rotating shaft; 23. Agitator; 24. Air hood 3; 35. Air hood 4; 36. Hook; 37. Slide cylinder; 38. Slide rail. Detailed Implementation

[0018] Example 1, as Figures 1-7 As shown in the figure, the vehicle frame painting device proposed in this embodiment includes a paint booth 1, a top frame 2, a rotating cover 26, and a spraying mechanism.

[0019] like Figure 2 As shown, a hook 31 is provided on the top of the inner side of the paint booth 1. Multiple hooks 31 can be provided for hoisting the all-terrain vehicle frame placed inside the paint booth 1. The frame has a channel in the middle through which the spraying mechanism can pass.

[0020] The spraying mechanism comprises multiple sets, including a painting mechanism and an air jet mechanism. The painting mechanism includes a paint supply pipe 9 connected from top to bottom, a spherical paint canopy, and multiple spray nozzles 24 connected to the spherical paint canopy. Paint enters the spherical paint canopy from the paint supply pipe 9 and is delivered to the spray nozzles 24. The spray nozzles 24 are radially distributed along the spherical paint canopy, allowing multiple spray nozzles 24 to spray paint in multiple directions, covering the frame. The air jet mechanism includes a vent pipe connected from top to bottom, a spherical air canopy, and multiple sets of air jet components evenly connected to the spherical air canopy. High-pressure air can enter the spherical air canopy through the vent pipe and be ejected through the air jet components. The air jet components include two air jets 25 distributed in a V-shape. The air jets of the two air jets 25 intersect the painting direction path of the paint jets 24. The airflow ejected by the air jets 25 atomizes the paint sprayed by the paint jets 24, increasing the paint diffusion range and facilitating uniform paint adhesion to the frame surface. The vent tube is fitted outside the paint supply tube 9, and the spherical paint cover is located inside the spherical air cover and is aligned with the center of the sphere. An air cavity is formed between the spherical paint cover and the spherical air cover. The paint spray head 24 passes through the air cavity and extends out of the spherical air cover, thereby enabling the vehicle frame to be painted.

[0021] The rotating shroud 26 is rotatably mounted on the spherical air shroud and is hemispherical. It includes a sealing plate 261 that intermittently seals the paint spray nozzle 24, an impact plate 262 that is offset to the outside of the sealing plate 261, a connecting plate that is blown by the jet assembly, and rotating rings 263 and 264 distributed at the upper and lower ends. The connecting plate is inclinedly connected between the sealing plate 261 and the impact plate 262, with the jet nozzle 25 facing the connecting plate. Both the sealing plate 261 and the impact plate 262 are spherical arc-shaped plate structures and are eccentrically distributed, i.e., the sphere centers are offset. The diameter of the sealing plate 261 is smaller than the diameter of the impact plate 262, and the sealing plate 261 and the spherical air shroud are concentric. When the inclined connecting plate is blown by the jet assembly, the airflow flows along the connecting plate to the impact plate 262. The airflow impacts the impact plate 262, causing it to rotate under the impact force of the airflow. This rotation of the entire rotating cover 26 allows the sealing plate 261 to scrape away paint from the spray nozzle 24 using its front end in the direction of rotation. The rotating cover 26 intermittently seals the spray nozzle 24 using the sealing plate 261. As the spray nozzle 24 is unsealed, its outlet is gradually released. The cross-sectional area of ​​the sprayed paint is relatively small compared to the overall size of the outlet, resulting in a high paint spray velocity and pressure, which reduces the likelihood of clogging at the spray nozzle 24 outlet.

[0022] like Figures 4-6 As shown, rotating ring 263 is rotatably mounted on the spherical gas cover, and rotating ring 264 is provided with rotating shaft 27, which is rotatably mounted on the spherical gas cover, thereby realizing the rotation of the entire rotating cover 26 on the spherical gas cover.

[0023] The top of the top frame 2 is equipped with a paint supply mechanism for supplying paint to the painting mechanism, an air supply mechanism for supplying air to the air spraying mechanism, and a winch 5 for raising and lowering the spraying mechanism. The winch 5 has a rope 51 that can be wound and unwound. A connecting block 6 is provided on the diverter pipe 7, and the connecting block 6 is connected to the rope 51. The raising and lowering of the diverter pipe 7 is achieved by winding and unwounding the rope 51 through the winch 5, thereby raising and lowering the spraying mechanism. When the spraying mechanism descends, it paints the vehicle frame. It should not descend too quickly to prevent incomplete painting. After painting is completed, the spraying mechanism rises and removes the vehicle frame from the hook 31.

[0024] In this embodiment, when painting the vehicle frame, paint is supplied to the painting mechanism via a paint delivery mechanism, and air is supplied to the spraying mechanism via an air delivery mechanism. Multiple spraying mechanisms are lowered using a winch 5. These multiple spraying mechanisms paint the inner and outer sides of the vehicle frame respectively. During the painting process, the airflow from the spraying assembly atomizes the paint sprayed from the paint nozzle 24, which facilitates paint adhesion to the vehicle frame. The airflow from the spraying assembly also blows the eccentrically distributed rotating shroud 26. The rotating shroud 26 intermittently seals the paint nozzle 24 using a sealing plate 261, preventing the paint nozzle 24 from clogging. Furthermore, the front end of the sealing plate 261 can scrape off the paint at the outlet of the paint nozzle 24, improving the cleaning effect and further preventing paint from clogging the paint nozzle 24.

[0025] Example 2, as Figures 1-7 As shown, this embodiment of the vehicle frame painting device, compared to Embodiment 1, includes a central spraying mechanism and peripheral spraying mechanisms distributed around it. In the central spraying mechanism, the spherical air hood includes air hood one 20 and air hood two 21, connected to form a spherical hollow structure. Air jet components are evenly distributed on the spherical air hood. The spherical paint cover includes paint cover one 22 and paint cover two 23, connected to form a spherical hollow structure. Multiple paint spray heads 24 are evenly distributed radially from the center of the spherical paint cover, i.e., evenly distributed at different circumferential positions, and radially distributed outward from the center of the spherical paint cover. Each paint spray head 24 corresponds one-to-one with an air jet component. Each air jet component can atomize the paint sprayed from the corresponding paint spray head 24 through the ejected airflow and can drive the rotating cover 26 to rotate.

[0026] In the peripheral spraying mechanism, the spherical air shield includes air shield three 29 and air shield four 30, which are connected to form a spherical hollow structure. The jet components are evenly distributed on the spherical air shield, and the number of jet components is the same as that in the intermediate spraying mechanism, ensuring that the airflow is used to drive the rotating shield 26 to rotate. The spherical paint shield includes paint shield three and paint shield four, which are connected to form a spherical hollow structure. Multiple paint nozzles 24 are evenly distributed radially from the center of the spherical paint shield, that is, evenly distributed in the fan-shaped area in the projection direction, and radially distributed outward from the center of the spherical paint shield. The number of paint nozzles 24 is less than the number of jet components. The paint nozzles 24 in the multiple peripheral spraying mechanisms are generally oriented towards the side where the intermediate spraying mechanism is located. The arrangement of the paint nozzles 24 in the peripheral spraying mechanism is simplified, retaining only the paint nozzles 24 that can paint the inner frame, and removing the paint nozzles 24 that paint outward and cannot act on the inner frame.

[0027] This embodiment optimizes the distribution of paint spray heads 24 in the peripheral spraying mechanism, retaining paint spray heads 24 that can effectively paint the inner all-terrain vehicle frame, simplifying the structure and reducing paint waste.

[0028] Example 3, as Figures 1-7As shown, this embodiment proposes a vehicle frame painting device. Compared to Embodiment 2, in this embodiment, the paint delivery mechanism includes a pump 3, a diversion pipe 7, a paint inlet pipe 8, and multiple sets of connecting components. The pump 3 is mounted on the top frame 2. The diversion pipe 7 has one paint inlet end, one intermediate paint outlet end, and multiple peripheral paint outlet ends. The pump 3, the paint inlet pipe 8, and the paint inlet end of the diversion pipe 7 are connected in sequence. The pump 3 is connected to a paint bucket, drawing paint from the paint bucket and delivering the paint to the diversion pipe 7 via the paint inlet pipe 8, which is a flexible hose. The paint delivery pipe 9 in the intermediate spraying mechanism is connected to the intermediate paint outlet end of the diversion pipe 7. The peripheral paint outlet ends of the diversion pipe 7, the connecting components, and the paint delivery pipe 9 in the peripheral spraying mechanism are connected in sequence. The diversion pipe 7 delivers paint to the paint delivery pipes 9 in the multiple sets of spraying mechanisms.

[0029] The connecting components include a connecting pipe 18 that communicates with the paint supply pipe 9 in the peripheral spraying mechanism, a flexible hose 17 that connects the paint outlet end of the branch pipe 7 and the connecting pipe 18, a connecting bracket 16 mounted on the connecting pipe 18, a mounting bracket 14 mounted on the branch pipe 7, and a telescopic device 15 mounted on the mounting bracket 14 with its moving end connected to the connecting bracket 16. The telescopic device 15 can be a cylinder or a hydraulic cylinder. The position of the connecting pipe 18 is adjusted by the telescopic device 15, thereby adjusting the position of the peripheral spraying mechanism. For example, if the horizontal dimension of the vehicle frame is large when it is hoisted, the moving end of the telescopic device 15 is extended outward to make the multiple peripheral spraying mechanisms more dispersed, leaving enough space to paint the vehicle frame. The flexible hose 17 ensures effective paint delivery to the connecting pipe 18 when it moves.

[0030] like Figure 2 As shown, each vent pipe is slidably connected to a slide cylinder 32, with each vent pipe corresponding to one slide cylinder 32. The vent pipe slides vertically on the slide cylinder 32. The vent pipe in the intermediate spraying mechanism is vent pipe one 10, and the corresponding slide cylinder 32 is located on the top of the paint booth 1 and remains stationary. The top of the paint booth 1 has multiple movable channels, and slide rails 33 are provided at the movable channels. Sliding blocks are slidably mounted on the slide rails 33. The vent pipe in the peripheral spraying mechanism is vent pipe two 19, which passes through the movable channels, and the corresponding slide cylinder 32 is mounted on the sliding block. When the distribution position of the peripheral spraying mechanism is adjusted using the telescopic device 15, vent pipe two 19 drives the sliding block to slide on the slide rail 33 via the slide cylinder 32. The slide rail 33 and the sliding block can improve the stability of the movement of the peripheral spraying mechanism and the stability of the painting process.

[0031] The air delivery mechanism includes an air compressor 4, an inlet pipe 12, and a connecting cylinder 11 connected in sequence, as well as multiple hoses 13 connected to the connecting cylinder 11. The air compressor 4 is mounted on the top frame 2, and the inlet pipe 12 is a hose. The vent pipe 10 in the intermediate injection mechanism has an inlet port 101. The connecting cylinder 11 is fitted onto the vent pipe 10 in the intermediate injection mechanism and communicates with the inlet port 101. The air compressor 4 delivers high-pressure air to the connecting cylinder 11 through the inlet pipe 12, and the air enters the vent pipe 10 through the inlet port 101. The end of the hose 13 away from the connecting cylinder 11 is connected to the vent pipe 19 in the peripheral injection mechanism, and the high-pressure air is delivered to the vent pipe 19 through the hose 13.

[0032] This embodiment uses a pump 3 to deliver paint to the painting mechanism in the multiple spraying mechanisms, and an air compressor 4 to deliver high-pressure air to the jetting mechanism in the multiple spraying mechanisms. It can also use a telescopic device 15 to adjust the multiple peripheral spraying mechanisms to be more dispersed, so as to paint larger vehicle frames.

[0033] Example 4, as Figures 1-7 As shown, in this embodiment, a vehicle frame painting device is proposed. Compared with the first embodiment, in this embodiment, the top of the rotating shaft 27 is connected to a stirrer 28. The stirrer 28 includes a stirring shaft that is rotatably sealed on a spherical paint cover and stirring blades that are disposed on the stirring shaft. The stirring blades can be spiral stirring blades.

[0034] In this embodiment, when the rotating cover 26 rotates, the rotating shaft 27 drives the agitator 28 to rotate. The agitator 28 agitates the paint inside the spherical paint cover, ensuring a uniform distribution of the paint components and guaranteeing paint quality. Furthermore, the paint generates resistance to the rotation of the rotating cover 26 through the agitator 28, thereby reducing the rotational speed of the rotating cover 26. This prevents the sealing plate 261 from scraping away paint too quickly at the outlet of the paint head 24, while ensuring that the rotating cover 26 can effectively and intermittently seal the paint head 24. If the sealing plate 261 scrapes away paint too quickly, under centrifugal force, the scraped paint will be thrown out rapidly and may stick to the frame. This large portion of paint can easily lead to uneven paint distribution on the frame. By slowing down the rotating cover 26, this excessively thrown paint can be prevented, thus preventing it from affecting the painting effect on the frame.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A vehicle frame painting device, characterized in that, include: The paint booth (1) has a hook (31) installed on the top of the inner side; The spraying mechanism is provided in multiple sets, including a painting mechanism and an air jet mechanism. The painting mechanism includes a paint supply pipe (9) connected from top to bottom, a spherical paint cover, and multiple paint spray heads (24) connected to the spherical paint cover. The paint spray heads (24) are radially distributed along the spherical paint cover. The air jet mechanism includes a vent pipe connected from top to bottom, a spherical air cover, and multiple sets of air jet components uniformly connected to the spherical air cover. The vent pipe is fitted on the outside of the paint supply pipe (9), the spherical paint cover is located inside the spherical air cover, and an air cavity is formed between the spherical paint cover and the spherical air cover. The paint spray head (24) passes through the air cavity and extends out of the spherical air cover. The rotating cover (26) is rotatably mounted on the spherical air cover. It includes a sealing plate (261) that intermittently seals the paint spray head (24), an impact plate (262) that is misaligned on the outside of the sealing plate (261), and a connecting plate that is blown by the jet assembly. The connecting plate is inclinedly connected between the sealing plate (261) and the impact plate (262). Both the sealing plate (261) and the impact plate (262) are spherical arc plate structures and are eccentrically distributed. The sealing plate (261) is concentric with the spherical air cover. The sealing plate (261) scrapes the paint off the paint spray head (24) with the front end in the rotation direction. The top frame (2) is equipped with a paint feeding mechanism for feeding paint to the spraying mechanism, an air feeding mechanism for feeding air to the spraying mechanism, and a winch (5) for lifting and lowering the spraying mechanism.

2. The vehicle frame painting device according to claim 1, characterized in that, The jet assembly includes two jet heads (25) arranged in a V-shape. The jet directions of the two jet heads (25) intersect on the spray direction path of the paint spray head (24), and the jet heads (25) face the connecting plate.

3. The vehicle frame painting device according to claim 1, characterized in that, Among the multiple spraying mechanisms, one is the intermediate spraying mechanism and the rest are the peripheral spraying mechanisms. In the intermediate spraying mechanism, multiple paint spray heads (24) are evenly distributed in a radial pattern on the spherical paint cover, and each paint spray head (24) corresponds to a jet assembly. In the peripheral spraying mechanism, multiple paint spray heads (24) are evenly distributed in a radial pattern on the spherical paint cover, and the number of paint spray heads (24) is less than the number of jet assemblies.

4. A vehicle frame painting device according to claim 3, characterized in that, The paint delivery mechanism includes a pump (3), a diversion pipe (7), a paint inlet pipe (8), and multiple sets of connecting components. The pump (3) is mounted on the top frame (2). The diversion pipe (7) has a paint inlet end, a middle paint outlet end, and multiple peripheral paint outlet ends. The pump (3), the paint inlet pipe (8), and the paint inlet end of the diversion pipe (7) are connected in sequence. The paint delivery pipe (9) in the intermediate spraying mechanism is connected to the middle paint outlet end of the diversion pipe (7). The peripheral paint outlet end of the diversion pipe (7), the connecting components, and the paint delivery pipe (9) in the peripheral spraying mechanism are connected in sequence.

5. A vehicle frame painting device according to claim 4, characterized in that, The connecting components include a connecting pipe (18) that communicates with the paint supply pipe (9) in the peripheral spraying mechanism, a hose (17) that communicates between the paint outlet end of the branch pipe (7) and the connecting pipe (18), a connecting bracket (16) provided on the connecting pipe (18), a mounting bracket (14) provided on the branch pipe (7), and a telescopic device (15) provided on the mounting bracket (14) and whose moving end is connected to the connecting bracket (16).

6. A vehicle frame painting device according to claim 5, characterized in that, The vent pipe is slidably connected to a slide cylinder (32); the slide cylinder (32) corresponding to the vent pipe in the intermediate spray mechanism is set on the top of the paint booth (1); the top of the paint booth (1) has multiple movable channels, and a slide rail (33) is set at the movable channel. A slider is slidably set on the slide rail (33). The vent pipe in the peripheral spray mechanism passes through the movable channel, and the corresponding slide cylinder (32) is set on the slider.

7. A vehicle frame painting device according to claim 3, characterized in that, The air delivery mechanism includes an air compressor (4), an air inlet pipe (12), and a connecting cylinder (11) connected in sequence, as well as multiple hoses (13) connected to the connecting cylinder (11). The air compressor (4) is mounted on the top frame (2). The air pipe in the intermediate injection mechanism has an air inlet (101). The connecting cylinder (11) is fitted onto the air pipe in the intermediate injection mechanism and is connected to the air inlet (101). The end of the hose (13) away from the connecting cylinder (11) is connected to the air pipe in the peripheral injection mechanism.

8. A vehicle frame painting device according to claim 1, characterized in that, The diameter of the ball in the sealing plate (261) is smaller than that in the impact plate (262). The rotating cover (26) also includes a rotating ring one (263) and a rotating ring two (264) distributed at the upper and lower ends. The rotating ring one (263) is rotatably mounted on the spherical gas cover, and the rotating ring two (264) is provided with a rotating shaft (27). The rotating shaft (27) is rotatably mounted on the spherical gas cover.

9. A vehicle frame painting device according to claim 8, characterized in that, The top of the rotating shaft (27) is connected to a stirrer (28), which includes a stirring shaft with a rotating seal set on a spherical paint cover and stirring blades set on the stirring shaft.

Images