CN117225620A - Rotary spraying support for automobile grille production - Google Patents

Abstract

The invention discloses a rotary spraying bracket for automobile grille production, which comprises a bottom plate and a top plate, wherein the bottom plate and the top plate are connected through vertical plates, the front surface of the bottom plate is provided with the rotary bracket, one end of the rotary bracket is provided with a clamping mechanism, the bottom of the top plate is provided with a manipulator, one end of the manipulator far away from the top plate is provided with a spray head, the top of the top plate is provided with an opening, the inner top surface of the top plate is symmetrically provided with two industrial cameras, and the front surface of the vertical plates is provided with two protection mechanisms. According to the invention, through the rotatable clamping mechanism, after the paint spraying of one end of the automobile grille is finished, the rotating plate can be driven to rotate and adjust through the second rotating shaft, so that the spray head can conveniently spray paint on the other end of the automobile grille; after finishing spraying paint to the one side of car grid, steerable first pivot drives installation piece and fixture and rotates together, makes things convenient for the shower nozzle to spray paint to the another side of car grid, improves the effect of spraying paint on car grid surface, avoids the production at spraying dead angle.

Description

A rotary spray bracket for automobile grille production

Technical field

The invention belongs to the technical field of automobile grille production, and specifically relates to a rotary spray bracket for automobile grille production.

Background technique

The grille is a car grille or water tank guard, which serves to provide air intake and ventilation for the water tank, engine, air conditioner, etc., to prevent damage to the interior components of the car by foreign objects while driving, and to be beautiful and highlight individuality. Most vehicles have a grille on the front to protect the radiator and engine. During the production and processing of automobile grilles in the prior art, in order to enhance the overall color and anti-corrosion function of the automobile grille, it is usually necessary to use a spray painting device to spray paint the automobile grille.

However, when most of the spray painting devices in the prior art are used, due to the limited spray range of the nozzle, they cannot completely cover the surface of the car grille, and the problem of spraying dead corners is prone to occur, making the paint spraying effect poor; and on the surface of the car grille After the spraying is completed, it is inconvenient to pre-dry the car grille, which makes it easy for the paint to fall off when the car grille is picked up manually or by a robotic arm, causing contamination to the hands of the staff or the clamping claws of the robotic arm. .

Contents of the invention

The purpose of the present invention is to solve the shortcomings existing in the prior art and propose a rotary spray bracket for automobile grille production.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A rotary spraying bracket for automobile grille production, including a bottom plate and a top plate. The bottom plate and the top plate are connected by a vertical plate. A rotating bracket is installed on the front of the bottom plate. One end of the rotating bracket is installed with a screw for fixing the automobile grille. A clamping mechanism, a manipulator is installed at the bottom of the top plate, and a nozzle is installed at the end of the manipulator away from the top plate. An opening is provided at the top of the top plate to facilitate the loading and unloading of the car grille. Two industrial cameras are installed symmetrically on the inner top surface of the top plate. There are two protective mechanisms installed on the front of the board.

Optionally, the clamping mechanism includes a mounting block, one end of the rotating bracket is connected to the mounting block through a first rotating shaft, a rotating plate is installed on the top of the mounting block through a second rotating shaft, and a cavity is provided inside the rotating plate.

Optionally, two splints are installed symmetrically inside the rotating plate. A screw rod and a sliding rod are respectively installed at both ends of the rotating plate. Both ends of the screw rod and the sliding rod pass through the close ends of the two plywood plates.

Optionally, the protection mechanism includes two moving plates arranged in an L shape, a first chute is provided on the front of the vertical plate, and two first slide blocks are slidably installed inside the first chute. The slide blocks are connected to the moving plate adjacent to them through a third rotating shaft.

Optionally, protective plates are rotatably installed inside the two movable plates, and telescopic limit rods are installed at the rotating parts of the two movable plates away from the protective plates.

Optionally, a second chute is provided on the outer wall of the side of the protective plate away from the vertical plate. A second slide block is slidably installed in the second chute. A first electric telescopic rod is installed inside the second slide block. A mobile frame is installed at the telescopic end of an electric telescopic rod.

Optionally, the mobile frame is arranged in a U shape, with a plurality of air outlets provided on one side of the outer wall of the mobile frame, and a connection end for connecting to an external air outlet mechanism is installed on the top of the mobile frame close to the plurality of air outlets.

Optionally, a grinding block is installed on the outer wall of the other side of the movable frame, and a first scraper is installed on one end of the movable frame close to the grinding block. There is a gap between the first scraper and the grinding block, and the interior of the grinding block is symmetrical. Two second electric telescopic poles are installed.

Optionally, the inner bottom surface of the bottom plate is provided with a groove, the inner bottom surface of the groove is provided with a third chute, and two third slide blocks are symmetrically installed in the third chute.

Optionally, filters are installed at the bottoms of the two moving plates, second scrapers are installed at the bottoms of the two filters, and the two third sliders are respectively connected to the second scrapers that are close to them. .

The beneficial effects of the present invention are:

1. In this invention, through the rotatable clamping mechanism provided, after one end of the car grille is painted, the second rotating shaft can be used to drive the rotating plate to rotate and adjust, so that the nozzle can spray paint on the other end of the car grille. ; After painting one side of the car grille, the first rotating shaft can be controlled to drive the mounting block and the clamping mechanism to rotate together, so that the nozzle can spray paint on the other side of the car grille, thereby improving the painting effect on the car grille surface and avoiding spraying. The generation of dead ends.

2. In this invention, through the air outlet opened on one side of the outer wall of the moving frame, the paint liquid on the surface of the car grille can be dried in advance, so that when the car grille is picked up manually or by the loading and unloading robot arm, there will be no damage to the manual work. The hand or the gripper of the robot arm causes pollution, further reducing the pollution problems caused by spray painting operations.

3. In this invention, through the protective mechanism provided, the paint liquid splashed on both sides of the nozzle can be blocked, so that the excess paint liquid adheres to the outer wall of the side where the two protective plates are close to each other, preventing the excess paint liquid from spreading around. splash, narrowing the spray range of the paint liquid, thereby reducing the pollution of the surrounding environment caused by the paint liquid splashing around; when it is necessary to clean the paint liquid attached to the outer wall of one side of the protective plate, the second slider can be controlled to drive in the second chute The moving frame moves up and down, driving the first scraper to scrape and clean the outer wall of the protective plate and the moving plate on one side where the paint liquid is attached, and discharge the cleaned paint through the gap between the first scraper and the polishing block. Temporary collection is carried out in the groove.

4. In this invention, when the first scraper is cleaning the paint on one side of the protective plate and the moving plate, if the first scraper does not have a satisfactory effect on cleaning the paint on the surface of the protective plate, the protective plate can be controlled to rotate downward and The water in the groove comes into contact, and then the second slider is controlled to move back and forth in the second chute, driving the first scraper to clean the paint liquid in contact with water on one side of the outer wall of the protective plate, thereby improving the protection of the protective plate and the moving plate. The effect of cleaning the paint liquid attached to the outer wall.

Description of drawings

In order to facilitate understanding by those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

Figure 1 is a schematic diagram of the overall structure of a rotary spray bracket for automobile grille production proposed by the present invention;

Figure 2 is a schematic structural diagram of Figure 1 from another angle;

Figure 3 is a schematic structural diagram of the clamping mechanism in the present invention;

Figure 4 is a schematic structural diagram of the protection mechanism in the present invention;

Figure 5 is a schematic structural diagram of Figure 4 from another angle;

Figure 6 is a schematic structural diagram of the protective plate and the moving frame separated from the moving plate in Figure 5;

Figure 7 is a schematic structural diagram of the mobile frame in the present invention;

Figure 8 is a structural cross-sectional view of the mobile frame in Figure 7;

Figure 9 is a schematic structural diagram of Figure 7 from another angle.

In the picture: 1. Bottom plate; 2. Manipulator; 3. Nozzle; 4. Rotating bracket; 5. Mounting block; 6. Plywood; 7. Vertical plate; 8. First chute; 9. Top plate; 10. Groove; 11. Third chute; 12. Protective plate; 13. Opening; 14. Industrial camera; 15. Rotating plate; 16. Lead screw; 17. Slide rod; 18. Moving plate; 19. First slider; 20. Second chute; 21. Moving frame; 22. Filter; 23. Second scraper; 24. Third slider; 25. Air outlet; 26. Connecting end; 27. Telescopic limit rod; 28. Second Slider; 29. First scraper; 30. Grinding block; 31. First electric telescopic rod; 32. Second electric telescopic rod.

Detailed ways

The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Referring to Figures 1 to 9, a rotary spray bracket for automobile grille production includes a bottom plate 1 and a top plate 9. The bottom plate 1 and the top plate 9 are connected through a vertical plate 7. A rotating bracket 4 is installed on the front of the bottom plate 1. The rotating bracket 4 is installed on the front of the bottom plate 1. A clamping mechanism for fixing the automobile grille is installed on one end of the bracket 4. A manipulator 2 is installed on the bottom of the top plate 9. A nozzle 3 is installed on the end of the manipulator 2 away from the top plate 9. The top of the top plate 9 is provided with a hole to facilitate the up and down of the car grille. There is an opening 13 for the material, two industrial cameras 14 are symmetrically installed on the inner top surface of the top plate 9, and two protective mechanisms are installed on the front of the vertical plate 7.

As a technical optimization solution of the present invention, the clamping mechanism includes a mounting block 5. One end of the rotating bracket 4 is connected to the mounting block 5 through a first rotating shaft. A rotating plate 15 is installed on the top of the mounting block 5 through a second rotating shaft. A cavity is provided inside the plate 15 .

As a technical optimization solution of the present invention, two splints 6 are symmetrically installed inside the rotating plate 15. The two ends of the rotating plate 15 are respectively equipped with a screw rod 16 and a sliding rod 17. The two ends of the screw rod 16 and the sliding rod 17 are respectively installed. Both pass through the close ends of the two splints 6. One end of the screw rod 16 is connected to an externally preset first drive motor. When the screw rod 16 is driven to rotate, it can also drive the two clamping plates 6 to move toward or away from each other, so as to facilitate the clamping and fixing of the automobile grille; Since the bottom end of the rotating plate 15 and the mounting block 5 are connected through the second rotating shaft, a second driving motor is pre-installed inside the mounting block 5, which can drive the rotating plate 15 to rotate after starting, thereby adjusting the automobile grille. Its own position makes it convenient for the manipulator 2 to drive the nozzle 3 to spray paint; and a third drive motor is pre-installed inside one end of the rotating bracket 4, which can drive the first rotating shaft and the mounting block 5 to rotate together after starting, so as to facilitate the car grid. Paint the other side of the grille.

As a technical optimization solution of the present invention, the protection mechanism includes two moving plates 18 arranged in an L shape. A first chute 8 is provided on the front of the vertical plate 7, and two second chute 8 are slidably installed inside. A sliding block 19, and the two first sliding blocks 19 are connected to the moving plate 18 adjacent to them through a third rotating shaft. Two first linear motors are pre-installed inside the first chute 8 and can respectively drive the two first slide blocks 19 to move back and forth in the first chute 8 .

As a technical optimization solution of the present invention, protective plates 12 are rotatably installed inside the two moving plates 18 , and telescopic limiting rods 27 are installed at the rotating parts of the two moving plates 18 away from the protective plates 12 . A fourth drive motor is pre-installed inside the two moving plates 18, which can drive the protective plate 12 to rotate inside the moving plate 18, and after the protective plate 12 rotates to a position flush with the moving plate 18, it can be telescopically The limiting rod 27 assists in limiting and fixing the position of the protective plate 12 .

As a technical optimization solution of the present invention, a second chute 20 is provided on the outer wall of the side of the protective plate 12 away from the vertical plate 7. A second slider 28 is slidably installed in the second chute 20. The second slider 28 is A first electric telescopic rod 31 is installed inside, and a moving frame 21 is installed at the telescopic end of the first electric telescopic rod 31 . A second linear motor is pre-installed inside the second chute 20, which can drive the second slider 28 to move up and down in the second chute 20; and synchronously drive the movable frame 21 connected to the telescopic end of the first electric telescopic rod 31 together. Move up and down on the outer wall of the protective plate 12.

As a technical optimization solution of the present invention, the movable frame 21 is arranged in a U shape. A plurality of air outlets 25 are provided on one side of the outer wall of the movable frame 21. The top of the movable frame 21 close to the plurality of air outlets 25 is equipped with an air vent for communicating with the external air outlet. The connecting end 26 to which the mechanism is connected. The output end of the external air outlet mechanism is connected to the connecting end 26 through a hose, and the gas generated by the external air outlet mechanism can be discharged through a plurality of air outlets 25 to facilitate dust removal on the unpainted car grille surface after the position of the protective plate 12 is changed. Clean and speed up the drying of the painted car grille.

As a technical optimization solution of the present invention, a grinding block 30 is installed on the other outer wall of the movable frame 21 , and a first scraper 29 is installed on one end of the movable frame 21 close to the grinding block 30 . The first scraper 29 and the grinding block 30 There is a gap between them, and two second electric telescopic rods 32 are symmetrically installed inside the grinding block 30 . The provided first scraper 29 can scrape and clean the paint liquid on the outer wall of the protective plate 12 when the moving frame 21 moves up and down, and the cleaned paint can drop downward through the gap and be discharged.

As a technical optimization solution of the present invention, the inner bottom surface of the base plate 1 is provided with a groove 10, and the inner bottom surface of the groove 10 is provided with a third chute 11. Two third slide blocks are symmetrically installed in the third chute 11. twenty four. The groove 10 opened at the bottom of the bottom plate 1 can be injected with an appropriate amount of water into the groove 10 before painting, and the excess paint liquid sprayed by the nozzle 3 can be collected to prevent the paint liquid from adhering to the top of the bottom plate 1 .

As a technical optimization solution of the present invention, filters 22 are installed at the bottom of the two moving plates 18, and second scrapers 23 are installed at the bottoms of the two filters 22. The two third sliders 24 are respectively connected with them. The adjacent second scrapers 23 are connected. The provided second scraper 23 can clean a small amount of paint attached to the bottom surface of the groove 10 when the moving plate 18 moves back and forth, thereby preventing a large amount of paint liquid from accumulating inside the groove 10 .

The industrial camera 14 used in this embodiment is the Hikvision CE series industrial area scan camera-MV-CE003-20GM in the prior art.

In the present invention, when the user uses the device, he first injects an appropriate amount of water into the inside of the groove 10, and then controls the two first sliders 19 to move toward each other inside the first chute 8, thereby driving The two moving plates 18 and the protective plates 12 move toward each other together. At this time, the two protective plates 12 are located below the opening 13. Then the two second sliders 28 can be controlled to drive the two second sliders 28 in the second chute 20. The moving frame 21 moves upward to the top, and controls the telescopic ends of the two second electric telescopic rods 32 inside the two grinding blocks 30 to extend upward. After opening the cover plate inside the opening 13, the manual or external The loading and unloading mechanical arm places the car grille to be painted on the top of one end of the two moving frames 21 close to each other, and the two ends of the car grille are respectively located between the two second electric telescopic rods 32 on the top of the two grinding blocks 30 , at this time, the two movable frames 21 can be used as loading and unloading mechanisms in cooperation. Finally, the second slider 28 drives the movable frames 21 together in the second chute 20 to move downward to contact the clamping mechanism, so that the two movable frames 21 are in contact with each other. The automobile grille between the two moving frames 21 is located between the two clamping plates 6. The two clamping plates 6 are driven by the screw rod 16 to move toward each other to clamp and fix the automobile grille to be painted.

Then, the surface of the car grille to be painted can be identified through the two industrial cameras 14 provided on the inner bottom surface of the top plate 9, and whether there are dust and other debris on the surface of the car grille, and whether there are defects in the car grille itself, such as If there is a defect, you can control the two clamping plates 6 to cancel the clamping effect of the car grille, and control the two movable frames 21 to drive the car grille upward to the vicinity of the opening 13, and take it out manually or by a loading and unloading mechanical arm; for example There are only dust and other debris on the surface of the automobile grille. In order to prevent this part of the debris from affecting the painting work, the two protective plates 12 can be controlled to be reset to the state shown in Figure 1, and one of the moving plates 18 can be controlled to The third rotating shaft rotates 180 degrees at the center of the circle, so that the outer wall of the mobile frame 21 with the plurality of air outlets 25 rotates close to the car grille, and the gas discharged through the plurality of air outlets 25 removes the dust on the surface of the car grille. Wait for removal to facilitate subsequent painting.

Before painting the surface of the automobile grille, the above-mentioned rotated moving plate 18 can be controlled to rotate and reset, and the two first sliders 19 can be controlled to move toward each other in the first chute 8 so that the automobile grille and The distance between the two protective plates 12 is reduced. At this time, the manipulator 2 drives the nozzle 3 to spray the paint liquid evenly on the surface of the car grille. The protective plates 12 on both sides can isolate the paint liquid splashed from both sides. gear, so that the excess paint liquid adheres to the outer wall of the side where the two protective plates 12 are close to each other, preventing the excess paint liquid from splashing around, reducing the spray range of the paint liquid, thereby reducing the pollution of the surrounding environment caused by the paint liquid splashing around; and Since water is pre-injected into the groove 10, the paint liquid falling into the groove 10 is blocked by the water to avoid contamination of the top of the base plate 1; after the painting is completed on one end of the automobile grille, it can be driven to rotate by the second rotating shaft The plate 15 is rotated and adjusted to facilitate the nozzle 3 to spray paint on the other end of the car grille; after the painting of one side of the car grille is completed, the first rotating shaft can be controlled to drive the mounting block 5 and the clamping mechanism to rotate together to facilitate the nozzle 3 to spray paint on the car. The other side of the grille is spray-painted to improve the spray-painting effect on the car grille surface and avoid spraying dead spots.

After the car grille is painted, its surface can continue to be identified and inspected through the two industrial cameras 14. If it is found that the paint liquid spraying at the center of the top of the car grille is not ideal, one of the moving plates 18 can be controlled to rotate 180 degrees again. Finally, the paint liquid on the surface of the car grille is quickly dried through multiple air outlets 25, and then the moving plate 18 is controlled to rotate and reset, and the first rotating shaft is controlled to drive the mounting block 5 and the rotating plate 15 to drive the car grille clockwise or counterclockwise. Rotate 90 degrees to get close to one of the protective plates 12, and then control the protective plate 12 that is close to the car grille to drive the movable frame 21 to move together until the movable frame 21 is flush with the car grille, then control the second slider 28 moves up and down in the second chute 20, driving the outer wall of the moving frame 21 with the grinding block 30 to rub against the car grille, polishing the defects in the center of the car grille, and polishing the coating at this position clean Finally, it is repainted, so that the device can deal with defects on the surface of the automobile grille that are easier to deal with, and improve the overall applicability of the device; at the same time, when the second slider 28 is in the second chute 20 In the process of driving the moving frame 21 to move up and down, the first scraper 29 can also be synchronously driven to scrape and clean the outer wall of the protective plate 12 and the moving plate 18 on which the paint liquid is attached, and the cleaned paint can be passed through the first scraper. The gaps between the plate 29 and the grinding block 30 are discharged into the groove 10 for temporary storage and collection.

After the car grille is painted and quickly dried through multiple air outlets 25, and then recognized and detected by two industrial cameras 14, the two protective plates 12 are controlled to move toward each other, and the mobile frame 21 is controlled to move upward. The two moving frames 21 push the car grille originally located in the clamping mechanism upward to the top opening 13 of the roof plate 9. Since the paint liquid on the surface of the car grille is in a dry state, subsequent manual or loading and unloading robot arms can take out the car grille. It will not cause contamination to the manual hand or the gripper of the robotic arm when screening, further reducing the pollution problems caused by spray painting operations.

After the painting work of the automobile grille is completed, since there will be paint cleaned by the first scraper 29 inside the groove 10, as well as excess paint liquid sprayed by the nozzle 3, the paint cleaned by the first scraper 29 will sink in in a dry state. The bottom of the groove 10, and the paint liquid sprayed by the nozzle 3 and falling in the groove 10 will float on the water, and the two first sliders 19 can be controlled to move toward each other in the first chute 8, driving The filter screen 22 and the second scraper 23 at the bottom of the two moving plates 18 move together in the groove 10. The second scraper 23 installed at the bottom of the filter screen 22 can scrape and clean the paint at the bottom of the groove 10. The filter screen 22 can salvage and clean the paint liquid on the water surface inside the groove 10, and after the two moving plates 18 move toward each other and come into contact, the cleaned paint is concentrated between the two filter screens 22. Then, after the water in the groove 10 is drained, the paint collected by cleaning can be cleaned from between the two filters 22 and recycled and reused to prevent the waste water containing paint liquid inside from being directly discharged to the outside environment. Pollution to the external environment occurs, thereby further reducing the pollution caused by the automobile grille painting operation; and when the first scraper 29 cleans the paint on the outer wall of the protective plate 12 and the moving plate 18, as shown in the first scraper 29 If a scraper 29 does not have a satisfactory effect on cleaning the paint on the surface of the protective plate 12, the telescopic end of the first electric telescopic rod 31 can be controlled to extend, pushing the movable frame 21 to move in a direction away from the protective plate 12. At this time, the protective plate 12 can no longer Restricted by the moving frame 21, it rotates downward to contact the water in the groove 10, and then controls the second slider 28 to move back and forth in the second chute 20, driving the first scraper 29 to contact the outer wall of one side of the protective plate 12 with the water. The paint liquid in contact is cleaned, thereby improving the cleaning effect of the paint liquid adhering to the outer walls of the protective plate 12 and the moving plate 18 .

The preferred embodiments of the invention disclosed above are only intended to help illustrate the invention. The preferred embodiments do not describe all details, nor do they limit the invention to the specific implementations described. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A rotary spray bracket for automobile grille production, including a bottom plate (1) and a top plate (9), characterized in that the bottom plate (1) and the top plate (9) are connected by a vertical plate (7), A rotating bracket (4) is installed on the front of the bottom plate (1), and a clamping mechanism for fixing the automobile grille is installed on one end of the rotating bracket (4). A manipulator (2) is installed on the bottom of the top plate (9), and the manipulator (2) is installed on the bottom of the top plate (9). 2) A nozzle (3) is installed on the end far away from the top plate (9). An opening (13) is provided on the top of the top plate (9) to facilitate the loading and unloading of the car grille. Two symmetrical openings are installed on the inner top surface of the top plate (9). For the industrial camera (14), two protective mechanisms are installed on the front of the vertical plate (7). 2. A rotary spraying bracket for automobile grille production according to claim 1, characterized in that the clamping mechanism includes a mounting block (5), and one end of the rotating bracket (4) passes through the first rotating shaft and the mounting block. (5) are connected, a rotating plate (15) is installed on the top of the mounting block (5) through the second rotating shaft, and a cavity is provided inside the rotating plate (15). 3. A rotary spraying bracket for automobile grille production according to claim 2, characterized in that two clamping plates (6) are symmetrically installed inside the rotating plate (15), and the two clamping plates (6) of the rotating plate (15) are symmetrically installed. The screw rod (16) and the sliding rod (17) are respectively installed at the ends, and both ends of the screw rod (16) and the sliding rod (17) pass through the close end of the two splints (6). 4. A rotary spraying bracket for automobile grille production according to claim 1, characterized in that the protection mechanism includes two moving plates (18) arranged in an L shape, and the front side of the vertical plate (7) is opened There is a first chute (8), and two first slide blocks (19) are slidably installed inside the first chute (8). The two first slide blocks (19) are moved close to them by the third rotating shaft. plate (18) is connected. 5. A rotary spraying bracket for automobile grille production according to claim 4, characterized in that protective plates (12) are rotatably installed inside the two moving plates (18), and the two moving plates (18) 18) Telescopic limit rods (27) are installed on the rotating parts away from the protective plate (12). 6. A rotary spraying bracket for automobile grille production according to claim 5, characterized in that a second chute (20) is provided on the outer wall of the side of the protective plate (12) away from the vertical plate (7). , a second slider (28) is slidably installed in the second chute (20), a first electric telescopic rod (31) is installed inside the second slider (28), and the first electric telescopic rod (31) telescopically A mobile frame (21) is installed at the end. 7. A rotary spraying bracket for automobile grille production according to claim 6, characterized in that the movable frame (21) is arranged in a U shape, and a plurality of outlets are provided on one side of the outer wall of the movable frame (21). Air holes (25), the top of the mobile frame (21) near the plurality of air outlets (25) is equipped with a connecting end (26) for connecting with an external air outlet mechanism. 8. A rotary spraying bracket for automobile grille production according to claim 6, characterized in that a grinding block (30) is installed on the outer wall of the other side of the movable frame (21), and the movable frame (21) is close to A first scraper (29) is installed at one end of the grinding block (30). There is a gap between the first scraper (29) and the grinding block (30). Two second scrapers (29) are installed symmetrically inside the grinding block (30). Electric telescopic pole (32). 9. A rotary spraying bracket for automobile grille production according to claim 1, characterized in that the inner bottom surface of the bottom plate (1) is provided with a groove (10), and the inner bottom surface of the groove (10) is provided with a groove (10). There is a third chute (11), and two third slide blocks (24) are symmetrically installed in the third chute (11). 10. A rotary spraying bracket for automobile grille production according to claim 4, characterized in that filters (22) are installed at the bottoms of the two moving plates (18), and the two filter meshes (22) ) are equipped with second scrapers (23) at their bottom ends, and the two third sliders (24) are respectively connected to the second scrapers (23) adjacent to them.