A carriage paint automatic spraying device

Abstract

The present application belongs to the technical field of vehicle manufacturing, in particular to a carriage paint automatic spraying device, comprising a guide rail, a shift plate assembly is arranged in the guide rail, the shift plate assembly is used to drive the carriage plate to move horizontally, the outer wall of the guide rail is symmetrically fixedly installed with a support plate, the top of the two support plates is fixedly installed with a spraying box, and the top of the support plate is symmetrically provided with a paint spraying assembly; the distance between the paint spraying assembly and the carriage plate is adjusted by the adjusting assembly through the paste plate block, when the carriage plates of different sizes enter the spraying box for spraying, the adjusting assembly drives the paint spraying assembly and the carriage plates of different sizes to always be at the same distance, thereby playing a role of self-adapting adjustment of the distance between the paint spraying assembly and the carriage plate, through the setting of the two groups of adjusting assemblies and paint spraying assemblies, when the carriage plate enters the spraying box, the two sides of the carriage plate can be sprayed, the spraying speed of the carriage plate is accelerated, and the spraying operation of the carriage plate is more favorable.

Description

Technical Field

[0001] This invention belongs to the field of vehicle manufacturing technology, specifically an automatic paint spraying device for vehicle bodies. Background Technology

[0002] A carriage typically refers to the part of a vehicle such as a train or automobile used for carrying passengers or goods. The sideboards are a crucial component of the carriage. Different uses for the carriage require different materials for the sideboards. For example, freight car sideboards usually require high strength and wear resistance to withstand the weight of the cargo and impacts during loading and unloading; therefore, they are generally made of carbon steel. The height of the sideboards can be adjusted according to the type of cargo and transportation needs to facilitate loading, unloading, and securing of goods. Box truck sideboards, on the other hand, need good sealing to protect goods from weathering and are often made of metal or composite materials.

[0003] An automatic paint spraying system for train carriages is a device used for automated painting of train carriage surfaces. It aims to improve painting efficiency, quality, and consistency while reducing errors and labor intensity caused by manual operation. It primarily sprays paint on the carriage panels, including the side panels, roof, floor, and doors. The automatic spraying system protects these panels from corrosion and wear, while also enhancing the carriage's aesthetic appearance.

[0004] When painting truck body panels, the different sizes of the panels require operators to constantly adjust the position of the spray gun to ensure that the distance between the spray gun and multiple panels remains consistent, thus guaranteeing a uniform paint thickness. This adjustment method is time-consuming and labor-intensive for mass production of truck body panels, making it unsuitable for batch painting operations.

[0005] Therefore, the present invention provides an automatic paint spraying device for vehicle compartments. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The automatic paint spraying device for a car body according to the present invention includes a guide rail, a moving plate assembly is provided inside the guide rail, the moving plate assembly is used to drive the car body panel to move laterally, support plates are symmetrically fixedly installed on the outer wall of the guide rail, a spraying box is fixedly installed on the top of the two support plates, a paint spraying assembly is symmetrically arranged on the top of the support plates, the paint spraying assembly is used to spray the car body panel, and a paint mixing assembly is symmetrically arranged on the top of the support plates, the paint mixing assembly is placed on one side of the paint spraying assembly, the paint mixing assembly includes a plate, the paint mixing assembly is used to adjust the distance between the paint spraying assembly and the car body panel by driving the paint spraying assembly through the plate;

[0008] When painting is required on the truck bed panels, the panels are placed in a transfer assembly within the guide rails. Once the panels are in place, the transfer assembly moves them into the paint spraying box. As the panels enter the spraying box, the paint mixing assembly adjusts the distance between the paint spraying assembly and the panels via a plate. When truck bed panels of different sizes are being painted, the paint mixing assembly maintains the same distance between the paint spraying assembly and the panels, ensuring even spraying. The paint thickness on the coated truck bed panels remains consistent, saving operators the step of calibration and adjustment. It also adaptively adjusts the distance between the paint spraying unit and the truck bed panels. As the truck bed panels pass by the paint spraying unit, the unit sprays paint onto the surface of the panels, thus achieving automatic painting. With the setup of two sets of paint mixing and painting units, both sides of the truck bed panels can be painted when they enter the paint spraying box, accelerating the painting speed and making the painting operation more efficient.

[0009] Preferably, the moving plate assembly includes a fixed plate frame. Motors are symmetrically fixed on both sides of the inner wall of the fixed plate frame. Fixed plates are fixedly installed at the output ends of the four motors. When the carriage plate is placed, the carriage plate is placed inside the fixed plate frame. When the carriage plate is placed inside the fixed plate frame, the four fixed plates are moved out from the four corners of the fixed plate frame by controlling the four motors. By moving the four fixed plates at the four corners, the four fixed plates can push the carriage plate to move inside the fixed plate frame. When all four fixed plates are in contact with the carriage plate, the motors continue to drive the fixed plates to move. The carriage plate will be pushed by the four motors and thus fixed between the four fixed plates, which plays the role of fixing and placing the carriage plate.

[0010] Preferably, electric sliders are symmetrically fixedly installed at the bottom of the fixed plate frame. The outer walls of the two electric sliders are slidably connected to the inner walls of the electric sliders. The bottom of the fixed plate frame is slidably connected to the top of the guide rail. When the carriage panel is placed, the fixed plate frame is moved within the guide rail by driving the electric sliders. The carriage panel will then move from one end of the guide rail to the other end, passing through the interior of the spray box. When the carriage panel passes through the interior of the spray box, the coating component drives the paint spraying component to perform adaptive spraying on the carriage panel, thereby moving the carriage panel. By adding multiple fixed plate frames within the guide rail, automatic spraying of carriage panels of different sizes can be achieved in a production line manner during the batch spraying of carriage panels, thereby improving the spraying efficiency of the carriage panels.

[0011] Preferably, the painting assembly includes a connecting plate, with a spray nozzle fixedly installed on one side of the connecting plate and a sprayer fixedly installed on the other side. The discharge end of the sprayer passes through the inner wall of the connecting plate and is fixedly connected to one side of the spray nozzle. By setting an automatic identification mechanism inside the sprayer, when the truck bed enters the painting box, the paint mixing component moves the connecting plate, thereby causing the paint mixing component to move the sprayer and the spray nozzle. When the distance between the sprayer and the truck bed is adjusted by the paint mixing component, the electric slider will move the truck bed through the fixed plate frame, passing between the two sprayers. When the truck bed passes between the two sprayers, the automatic identification mechanism inside the sprayer judges and identifies the truck bed, and then controls the sprayer to spray the truck bed. The sprayer will spray paint onto the outer walls of both sides of the truck bed through the spray nozzle. With the electric slider moving the truck bed, the automatic painting of the truck bed is achieved.

[0012] Preferably, the coating assembly also includes a spray nozzle, with a shifting block fixedly installed at the bottom of the spray nozzle. The bottom of the shifting block is slidably connected to the top of the support plate. One side of the outer wall of the coating plate is formed as a sloping sliding surface, allowing one side of the coating plate to slidably connect to the outer wall of the carriage panel and the fixed plate frame. The coating plate is fixedly installed on one side of the connecting plate, and the coating plate is fixedly connected to one side of the spray nozzle, with the length of the coating plate slightly greater than the length of the spray nozzle. When the electric slider moves the carriage panel inside the coating box via the fixed plate frame, one side of the carriage panel will push the coating plate to move. When the coating plate is pushed by the carriage panel, the coating plate will cause the connecting plate to move backward, and the shifting block will slide on the top of the support plate. The coating plate will then cause the sprayer and the connecting plate to move backward, thereby maintaining a certain distance between the connecting plate and the carriage panel, thus adjusting the distance between the connecting plate and the carriage panel.

[0013] Preferably, multiple shafts are symmetrically fixedly installed on the outer wall of the other side of the connecting plate, and a vertical plate is placed between the multiple shafts. A vertical plate is fixedly installed on the top of the support plate. The outer walls of the multiple shafts are slidably connected to the inner walls of the vertical plates. Multiple return springs are provided between one side of the vertical plate and the outer wall of the connecting plate. The multiple return springs are respectively placed outside the multiple shafts. When the plate is pushed backward, the plate will squeeze and push the return springs to move towards the vertical plate. When the carriage panel pushes the plate to move in the spray box, the plate will always be in contact with the outer wall of the carriage panel under the elastic push of the return springs. This prevents the distance between the spray nozzle and the carriage panel from changing due to the inability to be in contact with the plate during the movement of the carriage panel. This would cause the paint sprayed by the sprayer to be of inconsistent thickness due to different distances. This plate serves to adhere to the carriage panel for spraying. By sliding the plate in contact with the carriage panel, it is also possible to ensure that when carriage panels of different sizes are sprayed between the two sprayers, the thickness of the paint sprayed by the two sprayers between different carriage panels is always consistent.

[0014] Preferably, a hanging plate is fixedly installed on the inner wall of the spray box, and the hanging plate is positioned directly above the guide rail. Multiple round rods are symmetrically fixedly installed on the bottom of the hanging plate, and a limiting plate is slidably connected to the bottom of the multiple round rods. Multiple push springs are set between the top of the limiting plate and the bottom of the hanging plate, and the multiple push springs are respectively placed on the outside of the multiple round rods. The two ends of the limiting plate are symmetrically opened with bevels, and the outer wall of the plate can fit against one side of the outer wall of the limiting plate. When the electric slider drives the carriage plate into the spray box through the fixed plate frame, the carriage plate will push the bevel at one end of the limiting plate to move by the movement of the electric slider. When the carriage plate pushes the bevel to move, the bevel will squeeze the multiple push springs to slide on the round rods, and the bottom of the limiting plate will fit against the top of the carriage plate. With the inner wall of the fixed plate frame limiting the bottom of the carriage plate, the upper and lower ends of the carriage plate can be limited when the carriage plate is being sprayed, thus limiting the movement of the carriage plate in the spray box.

[0015] Preferably, a push block is fixedly installed on the top of the limiting plate. The outer wall of the push block is slidably connected to the inner wall of the hanging plate. A shift rod is slidably connected to the inner wall of the push block. A wedge spraying assembly is provided on the top of the plate. When the limiting plate moves upward, the limiting plate will push the push block upward. When the push block moves upward, the push block will push the shift rod upward. The shift rod will drive the wedge spraying assembly to operate, thereby limiting the paint sprayed from the spray nozzle, so that the sprayed paint is the same width as the surface of the carriage plate, reducing paint waste and preventing paint from being sprayed into the structural components inside the spray box due to lack of limiting, which would affect the working environment inside the spray box and the normal operation of the structural components inside the spray box.

[0016] Preferably, the spray assembly includes a rectangular plate, which is fixedly installed on the top of the bonding plate. A gear is rotatably connected to the outer wall of the rectangular plate. A main gear is fixedly installed at the top of the shifting rod. A limiting spray bar is slidably connected to the inner wall of the spray nozzle. A rectangular rod is fixedly installed at the top of the limiting spray bar, and a secondary gear is fixedly installed at the top of the rectangular rod. The teeth on the secondary gear and the teeth on the main gear mesh with the teeth on the gear. When the shifting rod moves upward, it drives the main gear to move upward. When the main gear moves upward, through the meshing of the gear, it drives the secondary gear to move downward. When the secondary gear moves downward, it drives the limiting spray bar at the spray nozzle via the rectangular rod. As the spray bar slides inward, one end moves downward from the top of the limiting plate. When the truck bed is fully inside the bottom of the limiting plate, it will no longer push the shifting rod. At this point, the spray bar will be positioned on one side of the limiting plate and parallel to its bottom, thus making the spray bar parallel to the top of the truck bed. The spray bar will then limit the spraying position of the spray nozzle and the top of the truck bed. In conjunction with the sliding connection between the spray nozzle and the inner wall of the mounting bracket, the upper and lower ends of the truck bed can be limited during the spraying process, preventing paint from being sprayed onto other areas inside the spray box, and ensuring that the spraying matches the width of the truck bed surface.

[0017] Preferably, a tie rod block is fixedly installed on the outer wall of the rectangular plate. The top of the tie rod block is placed inside the main gear, and the outer wall of the tie rod block is slidably connected to the inner wall of the main gear. When the carriage plate enters the limiting plate, by continuing to move the carriage plate, the carriage will push the patch plate to move backward. When the patch plate moves backward, the patch plate will pull the displacement rod to slide on the inner wall of the pushing block through the tie rod block. This prevents the main gear and gear from losing their limiting contact when adjusting the distance between the two sprayers, which would cause the auxiliary gear to drive the limiting spray rod to move, affecting the limiting spray operation of the sprayer. This ensures that the sprayer torque adjustment operation and the limiting spray operation do not interfere with each other, and plays the role of pulling the displacement rod to move.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The automatic paint spraying device for truck bodies of the present invention uses a coating adjustment component to adjust the distance between the paint spraying component and the truck body panel via a plate. When truck body panels of different sizes enter the spraying box for spraying, the coating adjustment component ensures that the distance between the paint spraying component and the truck body panel of different sizes is always the same, thus adaptively adjusting the distance between the paint spraying component and the truck body panel. With the arrangement of two sets of coating adjustment components and paint spraying components, when the truck body panel enters the spraying box, both sides of the truck body panel can be sprayed, accelerating the spraying speed of the truck body panel and making the spraying operation of the truck body panel more favorable.

[0020] 2. The automatic paint spraying device for a vehicle body according to the present invention moves the connecting plate by means of a paint mixing component, thereby moving the sprayer and the spray nozzle by the paint mixing component. When the distance between the sprayer and the vehicle body is adjusted by the paint mixing component, the electric slider moves the vehicle body through the fixed plate frame and passes between the two sprayers. When the vehicle body passes between the two sprayers, the automatic identification mechanism in the sprayer judges and identifies the vehicle body, and then controls the sprayer to spray the vehicle body. The sprayer sprays paint onto the outer walls of both sides of the vehicle body through the spray nozzle. With the electric slider moving the vehicle body, the automatic spraying of the vehicle body is achieved.

[0021] 3. The automatic paint spraying device for vehicle bodies described in this invention, when the coating plate is pushed backward, compresses and pushes the return spring to move towards the vertical plate. When the vehicle body panel moves within the spraying box, the coating plate will always be in contact with the outer wall of the vehicle body panel under the elastic push of the return spring. This prevents the distance between the spray nozzle and the vehicle body panel from changing due to the inability to maintain contact with the coating plate during movement, which would cause the paint sprayed by the sprayer to have inconsistent thickness due to different distances. This ensures that when vehicle body panels of different sizes are sprayed between two sprayers, the thickness of the paint sprayed by the two sprayers between different vehicle body panels remains consistent.

[0022] 4. The automatic paint spraying device for a vehicle body according to the present invention, through the meshing of gears, when the main gear moves upward, it can drive the auxiliary gear to move downward through the gear. The auxiliary gear will then drive the spray limiting rod to slide inside the spray nozzle. When the vehicle body is completely inside the bottom of the limiting plate, the vehicle body will not push the shifting rod to move. At this time, the spray limiting rod will be placed on one side of the limiting plate and parallel to the bottom of the limiting plate, so that the spray limiting rod is parallel to the top of the vehicle body. The spray limiting rod will limit the spraying position of the spray nozzle and the top of the vehicle body. In conjunction with the sliding connection between the spray nozzle and the inner wall of the fixed plate frame, the upper and lower ends of the vehicle body can be limited during the spraying process to prevent the paint from being sprayed into other positions inside the spray box.

[0023] 5. The automatic paint spraying device for truck bodies described in this invention uses a drive electric slider to move a fixed plate frame within a guide rail. The truck body panel is then moved from one end of the guide rail to the other by the electric slider, passing through the interior of the spraying box. As the truck body panel passes through the interior of the spraying box, the paint mixing component drives the paint spraying component to perform adaptive spraying on the truck body panel, thereby moving the truck body panel. By adding multiple fixed plate frames within the guide rail, a production line-style automatic spraying operation can be achieved for truck body panels of different sizes during batch spraying, thereby improving the spraying efficiency of the truck body panels. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is an overall diagram of the invention;

[0026] Figure 2 This is a main body diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure at the limiting plate in this invention;

[0028] Figure 4 This is a schematic diagram of the structure of the solid plate in this invention;

[0029] Figure 5 This is a schematic diagram of the structure at the plate attachment point in this invention;

[0030] Figure 6 This is a schematic diagram of the structure at the nozzle in this invention;

[0031] Figure 7 This is a schematic diagram of the structure at the spray bar in this invention;

[0032] Figure 8 This is a schematic diagram of the structure at the rectangular bar in this invention;

[0033] Figure 9 This is a schematic diagram of the structure at the shaft in this invention;

[0034] Figure 10 This is a schematic diagram of the structure of the push block in this invention.

[0035] In the diagram: 1. Spraying box; 2. Guide rail; 201. Electric slider; 3. Support plate; 4. Fixing plate frame; 401. Motor; 402. Fixing plate; 5. Limiting plate; 501. Round rod; 502. Push block spring; 503. Slanted opening; 6. Hanging plate; 7. Shifting rod; 701. Main gear; 702. Secondary gear; 703. Gear; 704. Rectangular plate; 705. Pull rod block; 8. Vertical plate; 801. Shaft; 802. Return spring; 9. Sprayer; 901. Connecting plate; 10. Adhesive plate; 11. Spray nozzle; 12. Rectangular rod; 1201. Limiting spray rod; 13. Shifting block; 14. Pushing block. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] like Figures 1 to 10As shown in the embodiment of the present invention, an automatic paint spraying device for a vehicle body includes a guide rail 2. A moving plate assembly is provided inside the guide rail 2. The moving plate assembly is used to drive the vehicle body panel to move laterally. Support plates 3 are symmetrically fixedly installed on the outer wall of the guide rail 2. Spraying boxes 1 are fixedly installed on the top of the two support plates 3. Spraying components are symmetrically arranged on the top of the support plates 3. The spraying components are used to spray the vehicle body panel. A coating mixing component is symmetrically arranged on the top of the support plates 3. The coating mixing component is placed on one side of the spraying component. The coating mixing component includes a plate 10. The coating mixing component is used to adjust the distance between the spraying component and the vehicle body panel by driving the spraying component through the plate 10.

[0038] Due to the different sizes of the truck body panels, in order to ensure that the paint thickness on the truck body panels is the same, the position of the spray gun needs to be constantly adjusted by the operators during the painting process. This adjustment method is time-consuming and labor-intensive when mass painting truck body panels.

[0039] When painting is required on the truck body panels, the panels are placed in the transfer assembly within the guide rail 2. Once the panels are in place, the transfer assembly moves the panels into the paint spraying box 1. As the panels enter the spraying box 1, the paint mixing assembly, via the mounting plate 10, adjusts the distance between the paint spraying assembly and the panels. When panels of different sizes are painted inside the spraying box 1, the paint mixing assembly maintains the same distance between the paint spraying assembly and the panels of different sizes, ensuring optimal spraying performance. The paint thickness on the painted truck body panels remains consistent, saving operators the step of calibration and adjustment. It also adaptively adjusts the distance between the paint spraying unit and the truck body panel. When the truck body panel passes the paint spraying unit, the paint spraying unit sprays paint onto the surface of the truck body panel, thereby realizing the automatic painting operation of the truck body panel. With the setting of two sets of coating and painting units, when the truck body panel enters the painting box 1, both sides of the truck body panel can be painted, which speeds up the painting process and is more conducive to the painting operation of the truck body panel.

[0040] like Figures 3 to 4 As shown, the moving plate assembly includes a fixed plate frame 4, and motors 401 are symmetrically fixedly installed on both sides of the inner wall of the fixed plate frame 4. Fixed plates 402 are fixedly installed at the output ends of the four motors 401.

[0041] When the carriage panel is placed, it is placed inside the fixed plate frame 4. When the carriage panel is placed inside the fixed plate frame 4, the four motors 401 are controlled to drive the four fixed plates 402 to move out from the four corners inside the fixed plate frame 4. By moving the four fixed plates 402 in alignment with the four corners, the four fixed plates 402 can push the carriage panel to move inside the fixed plate frame 4. When all four fixed plates 402 are in contact with the carriage panel, the motors 401 continue to drive the fixed plates 402 to move. The carriage panel will be pushed by the four motors 401 and thus fixed between the four fixed plates 402, which plays the role of fixing and placing the carriage panel.

[0042] like Figure 4 As shown, electric sliders 201 are symmetrically fixedly installed on the bottom of the fixed plate frame 4. The outer walls of the two electric sliders 201 are slidably connected to the inner walls of the electric sliders 201. The bottom of the fixed plate frame 4 is slidably connected to the top of the guide rail 2.

[0043] When the carriage panel is installed, the electric slider 201 drives the fixed plate frame 4 to move within the guide rail 2. The carriage panel will then move from one end of the guide rail 2 to the other end under the influence of the electric slider 201. The carriage panel will then pass through the interior of the spraying box 1. When the carriage panel passes through the interior of the spraying box 1, the coating component drives the paint spraying component to perform adaptive spraying on the carriage panel, which plays the role of moving the carriage panel. By adding multiple fixed plate frames 4 within the guide rail 2, the batch spraying process of carriage panels can achieve automated spraying of carriage panels of different sizes in a production line manner, thereby improving the spraying efficiency of the carriage panels.

[0044] like Figures 5 to 6 As shown, the painting assembly includes a connecting plate 901. A spray nozzle 11 is fixedly installed on one side of the connecting plate 901, and a sprayer 9 is fixedly installed on the other side of the connecting plate 901. The discharge end of the sprayer 9 passes through the inner wall of the connecting plate 901 and is fixedly connected to one side of the spray nozzle 11.

[0045] By setting an automatic identification mechanism inside the sprayer 9, when the truck bed enters the spray box 1, the paint mixing component moves the connecting plate 901, thereby moving the sprayer 9 and the spray nozzle 11. When the distance between the sprayer 9 and the truck bed is adjusted by the paint mixing component, the electric slider 201 moves the truck bed through the fixed plate frame 4, passing between the two sprayers 9. When the truck bed passes between the two sprayers 9, the automatic identification mechanism inside the sprayer 9 judges and identifies the truck bed, and then controls the sprayer 9 to spray the truck bed. The sprayer 9 sprays paint onto the outer walls of both sides of the truck bed through the spray nozzle 11. With the electric slider 201 moving the truck bed, the automatic spraying of the truck bed is achieved.

[0046] like Figures 6 to 9As shown, the coating assembly also includes a spray nozzle 11. A shift block 13 is fixedly installed at the bottom of the spray nozzle 11. The bottom of the shift block 13 is slidably connected to the top of the support plate 3. One side of the outer wall of the bonding plate 10 is opened as a sloping sliding surface. One side of the bonding plate 10 can be slidably connected to the outer wall of the carriage plate and the fixed plate frame 4. The bonding plate 10 is fixedly installed on one side of the connecting plate 901. The bonding plate 10 is fixedly connected to one side of the spray nozzle 11, and the length of the bonding plate 10 is slightly greater than the length of the spray nozzle 11.

[0047] When the electric slider 201 moves the carriage panel inside the spray box 1 via the fixed plate frame 4, one side of the carriage panel will push the adhesive plate 10 to move. When the adhesive plate 10 is pushed by the carriage panel, the adhesive plate 10 will drive the connecting plate 901 to move backward. The shifting block 13 will slide on the top of the support plate 3. The adhesive plate 10 will drive the sprayer 9 and the connecting plate 901 to move backward, thereby maintaining a certain distance between the connecting plate 901 and the carriage panel, which plays the role of adjusting the distance between the connecting plate 901 and the carriage panel.

[0048] like Figure 9 As shown, multiple shafts 801 are symmetrically fixedly installed on the outer wall of the other side of the connecting plate 901. The vertical plate 8 is placed between the multiple shafts 801. The top of the support plate 3 is fixedly installed with the vertical plate 8. The outer walls of the multiple shafts 801 are slidably connected to the inner wall of the vertical plate 8. Multiple return springs 802 are provided between one side of the vertical plate 8 and the outer wall of the connecting plate 901. The multiple return springs 802 are respectively placed outside the multiple shafts 801.

[0049] When the mounting plate 10 is pushed backward, it will squeeze and push the return spring 802 to move towards the vertical plate 8. When the carriage panel pushes the mounting plate 10 to move in the spray box 1, the mounting plate 10 will always be in contact with the outer wall of the carriage panel under the elastic push of the return spring 802. This prevents the distance between the spray nozzle 11 and the carriage panel from changing due to the lack of contact between the mounting plate 10 and the carriage panel during movement. This would cause the paint sprayed by the sprayer 9 to be of inconsistent thickness due to different distances. The mounting plate 10 plays a role in contacting the carriage panel for spraying. By sliding the mounting plate 10 in contact with the carriage panel, it can also be ensured that when carriage panels of different sizes are sprayed between the two sprayers 9, the thickness of the paint sprayed by the two sprayers 9 between different carriage panels is always consistent.

[0050] like Figure 4As shown, a hanging plate 6 is fixedly installed on the inner wall of the spray box 1. The hanging plate 6 is positioned directly above the guide rail 2. Multiple round rods 501 are symmetrically fixedly installed on the bottom of the hanging plate 6. The bottom of the multiple round rods 501 is slidably connected to the limiting plate 5. Multiple push block springs 502 are provided between the top of the limiting plate 5 and the bottom of the hanging plate 6. The multiple push block springs 502 are respectively placed outside the multiple round rods 501. The two ends of the limiting plate 5 are symmetrically provided with beveled openings 503. The outer wall of the adhesive plate 10 can fit against one side of the outer wall of the limiting plate 5.

[0051] When the electric slider 201 drives the carriage panel into the spray box 1 through the fixed plate frame 4, the movement of the electric slider 201 will push the inclined opening 503 at one end of the limiting plate 5 to move. When the carriage panel pushes the inclined opening 503 to move, the inclined opening 503 will squeeze multiple push block springs 502 to slide on the round rod 501. The bottom of the limiting plate 5 will then be attached to the top of the carriage panel. In conjunction with the inner wall of the fixed plate frame 4, the bottom of the carriage panel will be limited. Thus, when the carriage panel is being sprayed, the upper and lower ends of the carriage panel can be limited, thereby limiting the movement of the carriage panel in the spray box 1.

[0052] like Figure 10 As shown, a push block 14 is fixedly installed on the top of the limiting plate 5. The outer wall of the push block 14 is slidably connected to the inner wall of the hanging plate 6. A displacement rod 7 is slidably connected to the inner wall of the push block 14. A wedge spraying assembly is provided on the top of the sticking plate 10.

[0053] When the limiting plate 5 moves upward, it will push the push block 14 upward. When the push block 14 moves upward, it will push the shift rod 7 upward. The shift rod 7 will drive the spraying assembly to operate, thereby limiting the paint sprayed from the spray nozzle 11, so that the sprayed paint is the same width as the surface of the carriage panel, reducing paint waste and preventing paint from being sprayed into the structural components inside the spray box 1 due to lack of limiting, which would affect the working environment inside the spray box 1 and the normal operation of the structural components inside the spray box 1.

[0054] like Figures 7 to 10 As shown, the wedge spray assembly includes a rectangular plate 704, which is fixedly installed on the top of the plate 10. A gear 703 is rotatably connected to the outer wall of the rectangular plate 704. A main gear 701 is fixedly installed at the top of the shifting rod 7. A limiting spray rod 1201 is slidably connected to the inner wall of the spray nozzle 11. A rectangular rod 12 is fixedly installed at the top of the limiting spray rod 1201. A secondary gear 702 is fixedly installed at the top of the rectangular rod 12. The teeth on the secondary gear 702 and the teeth on the main gear 701 mesh with the teeth on the gear 703.

[0055] When the shift rod 7 moves upward, it drives the main gear 701 to move upward. When the main gear 701 moves upward, through the meshing of the gear 703, it drives the secondary gear 702 to move downward. When the secondary gear 702 moves downward, it drives the spray limiting rod 1201 to slide within the spray nozzle 11 via the torque rod 12. One end of the spray limiting rod 1201 moves downward from the top of one side of the limiting plate 5. When the carriage plate is completely inside the bottom of the limiting plate 5, the carriage plate will no longer push the shift rod 7 to move. At this point, the spray limiting rod... 1201 will be placed on one side of the limiting plate 5 and parallel to the bottom of the limiting plate 5, so that the limiting spray bar 1201 is parallel to the top of the carriage plate. The limiting spray bar 1201 will limit the spraying position of the spray nozzle 11 and the top of the carriage plate. It is slidably connected to the inner wall of the fixing plate 4 with the spray nozzle 11, so that the upper and lower ends of the carriage plate can be limited during the spraying process, preventing the paint from being sprayed in other positions in the spray box 1, and playing the role of matching the width of the carriage plate surface for spraying. It should be noted that the length of the limiting spray bar 1201 is the same as the length of the plate 10.

[0056] like Figure 10 As shown, a tie rod block 705 is fixedly installed on the outer wall of the rectangular plate 704. The top of the tie rod block 705 is placed inside the main toothed rod 701, and the outer wall of the tie rod block 705 is slidably connected to the inner wall of the main toothed rod 701.

[0057] When the carriage panel enters the limiting plate 5, by continuing to move the carriage panel, the carriage will push the patch plate 10 to move backward. When the patch plate 10 moves backward, the patch plate 10 will pull the displacement rod 7 to slide on the inner wall of the push block 14 through the pull rod block 705. This prevents the main gear 701 and the gear 703 from losing their limiting contact when adjusting the distance between the two sprayers 9, which would cause the auxiliary gear 702 to drive the limiting spray rod 1201 to move and affect the limiting spray operation of the limiting spray rod 1201 on the sprayer 9. This ensures that the torque adjustment operation and the limiting spray operation of the sprayer 9 do not affect each other, and plays the role of pulling the displacement rod 7 to move.

[0058] Working principle: When painting is required on the truck body panels, the panels are placed in the transfer assembly within the guide rail 2. Once the panels are in place, the transfer assembly moves the panels into the painting chamber 1. As the panels enter the painting chamber 1, the paint mixing assembly, via the application plate 10, adjusts the distance between the paint spraying assembly and the panels. When panels of different sizes are painted in the painting chamber 1, the paint mixing assembly maintains the same distance between the paint spraying assembly and the panels of different sizes, ensuring even painting. The paint thickness on the truck body panels sprayed by the painting assembly is always consistent, saving operators the step of calibration and adjustment. It also plays a role in adaptively adjusting the distance between the painting assembly and the truck body panels. When the truck body panels pass by the painting assembly, the painting assembly sprays paint on the surface of the truck body panels, thereby realizing the automatic painting operation of the truck body panels. With the setting of two sets of coating and painting assemblies, when the truck body panels enter the painting box 1, both sides of the truck body panels can be painted, which speeds up the painting of the truck body panels and is more conducive to the painting operation of the truck body panels.

[0059] When the carriage panel is placed, it is placed inside the fixed frame 4. When the carriage panel is placed inside the fixed frame 4, four motors 401 are controlled to drive four fixed plates 402 to move out from the four corners inside the fixed frame 4. By moving the four fixed plates 402 in alignment with the four corners, the four fixed plates 402 can push the carriage panel to move inside the fixed frame 4. When all four fixed plates 402 are in contact with the carriage panel, the motors 401 continue to drive the fixed plates 402 to move. The carriage panel will be pushed by the four motors 401 and thus fixed between the four fixed plates 402, which plays the role of fixing and placing the carriage panel.

[0060] When the carriage panel is installed, the electric slider 201 drives the fixed plate frame 4 to move within the guide rail 2. The carriage panel will then be driven by the electric slider 201 to move from one end of the guide rail 2 to the other end. The carriage panel will then pass through the interior of the spray box 1. When the carriage panel passes through the interior of the spray box 1, the coating component drives the paint spraying component to perform adaptive spraying on the carriage panel, which plays the role of moving the carriage panel. By adding multiple fixed plate frames 4 within the guide rail 2, in the process of batch spraying of carriage panels, an automated spraying operation for carriage panels of different sizes can be realized in an assembly line manner, thereby improving the spraying efficiency of the carriage panels.

[0061] By setting an automatic identification mechanism inside the sprayer 9, when the truck bed enters the spray box 1, the paint mixing component moves the connecting plate 901, thereby moving the sprayer 9 and the spray nozzle 11. When the distance between the sprayer 9 and the truck bed is adjusted by the paint mixing component, the electric slider 201 will move the truck bed through the fixed plate frame 4 and pass between the two sprayers 9. When the truck bed passes between the two sprayers 9, the automatic identification mechanism inside the sprayer 9 will judge and identify the truck bed, and then control the sprayer 9 to spray the truck bed. The sprayer 9 will spray paint onto the outer walls of both sides of the truck bed through the spray nozzle 11. With the electric slider 201 moving the truck bed, the automatic spraying of the truck bed is achieved.

[0062] When the electric slider 201 moves the carriage panel inside the spray box 1 via the fixed plate frame 4, one side of the carriage panel will push the adhesive plate 10 to move. When the adhesive plate 10 is pushed by the carriage panel, the adhesive plate 10 will drive the connecting plate 901 to move backward. The shifting block 13 will slide on the top of the support plate 3. The adhesive plate 10 will drive the sprayer 9 and the connecting plate 901 to move backward, thereby maintaining a certain distance between the connecting plate 901 and the carriage panel, which plays the role of adjusting the distance between the connecting plate 901 and the carriage panel.

[0063] When the mounting plate 10 is pushed backward, it will squeeze and push the return spring 802 to move towards the vertical plate 8. When the carriage panel pushes the mounting plate 10 to move in the spray box 1, the mounting plate 10 will always be in contact with the outer wall of the carriage panel under the elastic push of the return spring 802. This prevents the distance between the spray nozzle 11 and the carriage panel from changing due to the inability to be in contact with the mounting plate 10 when the carriage panel moves, which would cause the paint sprayed by the sprayer 9 to be of inconsistent thickness due to different distances. This serves to adhere to the carriage panel for spraying. By sliding the mounting plate 10 in contact with the carriage panel, it can also be ensured that when carriage panels of different sizes are sprayed between the two sprayers 9, the thickness of the paint sprayed by the two sprayers 9 between different carriage panels is always consistent.

[0064] When the electric slider 201 drives the carriage panel into the spray box 1 through the fixed plate frame 4, the movement of the electric slider 201 will push the inclined opening 503 at one end of the limiting plate 5 to move. When the carriage panel pushes the inclined opening 503 to move, the inclined opening 503 will squeeze multiple push block springs 502 to slide on the round rod 501. The bottom of the limiting plate 5 will then be attached to the top of the carriage panel. Together with the inner wall of the fixed plate frame 4, the bottom of the carriage panel will be limited. Thus, when the carriage panel is being sprayed, the upper and lower ends of the carriage panel can be limited, which can limit the movement of the carriage panel in the spray box 1.

[0065] When the limiting plate 5 moves upward, the limiting plate 5 will push the push block 14 to move upward. When the push block 14 moves upward, the push block 14 will push the shift rod 7 to move upward. The shift rod 7 will drive the wedge spray assembly to work, thereby limiting the paint sprayed from the spray nozzle 11, so that the sprayed paint is the same width as the surface of the carriage panel, reducing paint waste and preventing paint from being sprayed into the structural components inside the spray box 1 due to lack of limiting, which would affect the working environment inside the spray box 1 and the normal operation of the structural components inside the spray box 1.

[0066] When the shift rod 7 moves upward, it drives the main gear 701 to move upward. When the main gear 701 moves upward, through the meshing of the gear 703, it drives the secondary gear 702 to move downward. When the secondary gear 702 moves downward, it drives the spray limiting rod 1201 to slide within the spray nozzle 11 via the torque rod 12. One end of the spray limiting rod 1201 moves downward from the top of one side of the limiting plate 5. When the carriage plate is completely inserted into the bottom of the limiting plate 5, the carriage plate will no longer be pushed. When the shifting rod 7 moves, the spray limiting rod 1201 will be placed on one side of the limiting plate 5 and parallel to the bottom of the limiting plate 5, so that the spray limiting rod 1201 is parallel to the top of the carriage panel. The spray limiting rod 1201 will limit the spraying position of the spray nozzle 11 and the top of the carriage panel. In conjunction with the slidable connection between the spray nozzle 11 and the inner wall of the fixed plate frame 4, the upper and lower ends of the carriage panel can be limited during the spraying process to prevent the paint from being sprayed in other positions in the spray box 1, and play the role of spraying according to the width of the carriage panel surface.

[0067] When the carriage panel enters the limiting plate 5, by continuing to move the carriage panel, the carriage will push the patch plate 10 to move backward. When the patch plate 10 moves backward, the patch plate 10 will pull the displacement rod 7 to slide on the inner wall of the push block 14 through the pull rod block 705. This prevents the main gear 701 and the gear 703 from losing their limiting contact when adjusting the distance between the two sprayers 9, which would cause the auxiliary gear 702 to drive the limiting spray rod 1201 to move and affect the limiting spray operation of the limiting spray rod 1201 on the sprayer 9. This ensures that the torque adjustment operation and the limiting spray operation of the sprayer 9 do not affect each other, and plays the role of pulling the displacement rod 7 to move.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic paint spraying device for vehicle bodies, characterized in that: The system includes a guide rail, inside which is a moving plate assembly for moving the carriage panel laterally. Support plates are symmetrically fixed to the outer wall of the guide rail, and a spray box is fixedly installed on the top of the two support plates. A paint spraying assembly is symmetrically arranged on the top of the support plates for spraying the carriage panel. A paint mixing assembly is symmetrically arranged on the top of the support plates and is located on one side of the paint spraying assembly. The paint mixing assembly includes a plate and is used to adjust the distance between the paint spraying assembly and the carriage panel by moving the plate. The moving plate assembly includes a fixed plate frame, on which motors are symmetrically fixedly installed on both sides of the inner wall of the fixed plate frame, and fixed plates are fixedly installed at the output ends of the four motors. The bottom of the fixed plate frame is symmetrically fixed with electric sliders, the outer walls of the two electric sliders are slidably connected to the inner walls of the electric sliders, and the bottom of the fixed plate frame is slidably connected to the top of the guide rail. The painting assembly includes a connecting plate, a spray nozzle is fixedly installed on one side of the connecting plate, and a sprayer is fixedly installed on the other side of the connecting plate. The discharge end of the sprayer passes through the inner wall of the connecting plate and is fixedly connected to one side of the spray nozzle. The coating assembly also includes a spray nozzle, with a displacement block fixedly installed at the bottom of the spray nozzle. The bottom of the displacement block is slidably connected to the top of the support plate. One side of the outer wall of the bonding plate is opened as a sloping sliding surface. One side of the bonding plate can be slidably connected to the outer wall of the carriage plate and the fixed plate frame. The bonding plate is fixedly installed on one side of the connecting plate. The bonding plate is fixedly connected to one side of the spray nozzle, and the length of the bonding plate is slightly greater than the length of the spray nozzle. Multiple shafts are symmetrically fixedly installed on the outer wall of the other side of the connecting plate. The vertical plate is placed between the multiple shafts. The top of the support plate is fixedly installed with the vertical plate. The outer walls of the multiple shafts are slidably connected to the inner walls of the vertical plates. Multiple return springs are set between one side of the vertical plate and the outer wall of the connecting plate. The multiple return springs are respectively placed outside the multiple shafts.

2. The automatic paint spraying device for a vehicle compartment according to claim 1, characterized in that: A hanging plate is fixedly installed on the inner wall of the spray box. The hanging plate is positioned directly above the guide rail. Multiple round rods are symmetrically fixedly installed on the bottom of the hanging plate. The bottom of the multiple round rods is slidably connected to a limiting plate. Multiple push block springs are set between the top of the limiting plate and the bottom of the hanging plate. The multiple push block springs are respectively placed on the outside of the multiple round rods. The two ends of the limiting plate are symmetrically opened with bevels, and the outer wall of the plate can fit against one side of the outer wall of the limiting plate.

3. The automatic paint spraying device for a vehicle compartment according to claim 2, characterized in that: A push block is fixedly installed on the top of the limiting plate. The outer wall of the push block is slidably connected to the inner wall of the hanging plate. A displacement rod is slidably connected to the inner wall of the push block. A wedge spraying assembly is installed on the top of the plate.

4. The automatic paint spraying device for a vehicle compartment according to claim 3, characterized in that: The spray assembly includes a rectangular plate, which is fixedly installed on the top of the plate. A gear is rotatably connected to the outer wall of the rectangular plate. A main gear is fixedly installed at the top of the displacement rod. A limiting spray bar is slidably connected to the inner wall of the spray nozzle. A rectangular rod is fixedly installed at the top of the limiting spray bar. A secondary gear is fixedly installed at the top of the rectangular rod. The teeth on the secondary gear and the teeth on the main gear mesh with the teeth on the gear.

5. The automatic paint spraying device for a vehicle compartment according to claim 4, characterized in that: A tie rod block is fixedly installed on the outer wall of the rectangular plate. The top of the tie rod block is placed inside the main toothed rod, and the outer wall of the tie rod block is slidably connected to the inner wall of the main toothed rod.

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