Spraying device for surface treatment of automobile parts

Abstract

The utility model relates to a spraying device for automobile part surface treatment, which relates to the technical field of automobile part processing devices and comprises a base, a support frame and a fixing frame are arranged on the base, a driving motor is arranged on the support frame, an output end of the driving motor is connected with a rotating shaft, and a rotating frame is arranged on the rotating shaft. A plurality of containing grooves used for containing automobile parts are formed in the rotating frame, a support is arranged at the top of the fixing frame, a central axis is arranged on the support, the central axis inclines downwards by 45 degrees and penetrates through the central line of the rotating shaft, two protective covers which slide relatively and synchronously are symmetrically arranged on the support relative to the central axis, and a driving assembly used for driving the protective covers is arranged on the support. A spraying pipe is arranged on the protective cover, the output end of the spraying pipe is connected with a plurality of spray heads, and the spray heads are evenly distributed on the inner surface of the protective cover. The spraying device for automobile part surface treatment has the effect of reducing the influence on the air quality in the spraying process.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle component processing equipment, and in particular to a spraying device for surface treatment of automotive parts. Background Technology

[0002] Spray painting technology plays a vital role in the automotive manufacturing and repair industry. It not only enhances the appearance of vehicles but also protects the car body from external aggressors. Automotive spray painting is a complex and precise process involving numerous techniques and principles. One of the purposes of spray painting automotive parts is to provide a protective coating to prevent corrosion and oxidation. The main function of such equipment is to uniformly apply paint or other surface treatment materials to the surface of automotive parts in a spray form to meet requirements for corrosion resistance, rust prevention, and aesthetics.

[0003] Related technology can be found in Chinese Patent No. CN119657395A, which discloses a spraying device for surface treatment of automotive parts. The device includes a mounting frame and a mounting shaft rotatably connected within the mounting frame. Multiple feeding racks and a feeding clamping mechanism are fixedly connected to the outer surface of the mounting shaft. The feeding clamping mechanism is mounted on the feeding racks. This spraying device for surface treatment of automotive parts involves placing a shark fin (a type of automotive part) onto the feeding frame, then flexibly fixing the shark fin using a loading / unloading machine on the feeding frame. After fixing, the fixed shark fin is rotated to a surface treatment mechanism for surface grinding. After grinding, the surface is sprayed using a spraying mechanism and then dried. This achieves integrated grinding, spraying, and drying of the shark fin surface, greatly improving the spraying efficiency of the shark fin surface.

[0004] However, in the above-mentioned scheme, the spray pipe is exposed to the external environment, and the sprayed coating liquid will be suspended in the air, which not only causes environmental pollution but also negatively impacts air quality. Therefore, it is urgent to improve the spraying equipment and protective measures to ensure environmental safety and the health of operators. Utility Model Content

[0005] This application provides a spraying apparatus for surface treatment of automotive parts, which has the function of reducing the impact on air quality during the spraying process.

[0006] This application provides a spraying device for surface treatment of automotive parts, which adopts the following technical solution:

[0007] A spraying device for surface treatment of automotive parts includes a base, a support frame and a fixing frame on the base, a drive motor on the support frame, a rotating shaft connected to the output end of the drive motor, a rotating bracket on the rotating shaft, a plurality of placement slots for placing automotive parts on the rotating bracket, a support on the top of the fixing frame, a central axis on the support, the central axis being inclined downward at 45° and passing through the center line of the rotating shaft, two relatively synchronously sliding protective covers symmetrically arranged on the support about the central axis, a drive assembly for driving the protective covers on the support, a spraying pipe on the protective cover, a plurality of spray nozzles connected to the output end of the spraying pipe, the spray nozzles being evenly distributed on the inner surface of the protective cover.

[0008] Preferably, the rotating frame includes an inner core, the rotating shaft passes through the center of the inner core, the two shaft ends of the inner core are respectively provided with a first side plate and a second side plate, and a plurality of partitions are provided between the first side plate and the second side plate. The plurality of partitions are arranged at equal angles around the central axis of the inner core, and the plurality of partitions divide the space enclosed by the first side plate, the second side plate and the inner core into a plurality of placement slots.

[0009] Preferably, the inner core placement slot is provided with an installation side plate, the installation side plate is provided with an installation platform, the installation side plate is provided with an installation slot, the installation platform is symmetrically provided with two negative pressure ports communicating with the installation slot, and the installation slot is provided with a negative pressure fan.

[0010] Preferably, the inner surface of the protective cover is concave and forms an arc-shaped concave portion inside it, the nozzles are arranged in an array along the arc-shaped surface of the concave portion, and the two protective covers move relative to each other.

[0011] Preferably, the drive assembly includes an electric push rod, a first connecting rod, a second connecting rod, and two irregularly shaped rods that slide inside the bracket. The output end of the electric push rod is connected to a T-shaped rod, and two slidable sliders are symmetrically arranged on the T-shaped rod. One end of the first connecting rod is hinged to the slider, and the other end of the first connecting rod is hinged to the bracket. One end of the second connecting rod is hinged to the slider, and the other end of the second connecting rod is hinged to the irregularly shaped rods. The two irregularly shaped rods are respectively fixedly connected to two protective covers.

[0012] Preferably, the mounting bracket is equipped with a hot air drying assembly located diagonally below the bracket. The hot air drying assembly includes a horizontal support plate and a hot air blower. A drying hood is mounted on the horizontal support plate. The output end of the hot air blower is connected to the drying hood via a drying pipe. The hot air outlet of the drying hood is parallel to the base and is used to dry automotive parts positioned horizontally.

[0013] In summary, this application has the following beneficial effects:

[0014] 1. The automotive parts are fixed inside the placement trough and transported along with the rotation of the brick frame, allowing the automotive parts to be moved to the central axis of the two protective covers. Through the drive component, the two protective covers are brought closer to the automotive parts, adjusting the distance between the spray nozzle and the automotive parts to a suitable level. The two protective covers and the placement trough effectively provide lateral obstruction, preventing further diffusion of the spray liquid into the air. The 45° downward tilt of the placement trough allows the spray liquid to diffuse towards the interior of the placement trough, reducing environmental pollution and the impact on air quality during the spraying process. Moreover, the protective covers not only prevent the spread of the spray liquid but also protect the operators, reducing the risk of accidental contact during the spraying process.

[0015] 2. By using a negative pressure fan inside the mounting slot, the inside of the negative pressure ports on both sides of the automotive parts is kept in a negative pressure state. This is used to guide the spray liquid suspended in the placement slot toward the surface of the automotive parts during the spraying process. On the other hand, it draws the spray liquid suspended in the placement slot into the inside of the mounting slot. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the spraying device in this embodiment;

[0017] Figure 2 This is a schematic diagram of the internal structure of the rotating frame in this embodiment;

[0018] Figure 3 This is a schematic diagram of the internal structure of the driving component in this embodiment;

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support frame; 3. Fixing frame; 4. Drive motor; 5. Rotating shaft; 6. Rotating frame; 601. Inner core; 602. First side plate; 603. Second side plate; 604. Partition plate; 7. Placement slot; 8. Mounting side plate; 9. Mounting platform; 10. Flexible hydraulic fixing bladder; 11. Negative pressure port; 12. Negative pressure fan; 13. Bracket; 14. Protective cover; 15. Drive assembly; 1501. Electric push rod; 1502. First connecting rod; 1503. Second connecting rod; 1504. Irregular rod; 1505. T-shaped rod; 1506. Slider; 16. Spray tube; 17. Spray nozzle; 18. Recessed part; 19. Hot air drying assembly; 1901. Horizontal support plate; 1902. Drying hood; 1903. Drying tube. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] This utility model discloses a spraying device for surface treatment of automotive parts, such as... Figure 1 and Figure 2 As shown, the system includes a base 1, on which a support frame 2 and a fixing frame 3 are fixedly mounted. A drive motor 4 is fixedly mounted on the support frame 2. The drive motor 4 is existing technology under mature conditions. The output end of the drive motor 4 is connected to a rotating shaft 5. A rotating frame 6 is provided on the rotating shaft 5. The rotating frame 6 has several placement slots 7 for placing automotive parts. The drive motor 4 drives the rotating shaft 5 to rotate, thereby causing the automotive parts placed on the rotating frame 6 to rotate around the central axis of the rotating shaft 5. This ensures that the spraying liquid evenly covers the surface of the parts, improving the uniformity and quality of the spraying.

[0022] like Figure 1 and Figure 2 As shown, the rotating frame 6 includes an inner core 601, and a rotating shaft 5 passes through the center of the inner core 601. The two shaft ends of the inner core 601 are respectively fixedly installed with a first side plate 602 and a second side plate 603. Six partitions 604 are provided between the first side plate 602 and the second side plate 603. The six partitions 604 are arranged at equal angles around the central axis of the inner core 601, and the six partitions 604 divide the space enclosed by the first side plate 602, the second side plate 603 and the inner core 601 into six placement slots 7.

[0023] like Figure 1 and Figure 2 As shown, dividing the space into multiple placement slots 7 can maximize the use of the internal space of the rotating frame 6, ensuring that each placement slot 7 can store automotive parts independently, avoiding mutual interference between parts; this is used to improve the uniformity of spraying, thereby ensuring the finished quality of automotive parts.

[0024] like Figure 1 and Figure 2 As shown, the inner core 601 has two mounting side plates 8 inside the placement groove 7. The mounting side plates 8 are fixedly mounted with mounting platforms 9. The mounting platform 9 has a flexible hydraulic fixing bladder 10 for fixing automotive parts at its center. It is worth noting that the flexible hydraulic fixing bladder 10 is existing technology under the background of maturity, and will not be described in detail here.

[0025] like Figure 2As shown, the mounting side plate 8 has a mounting groove inside, and two negative pressure ports 11 connected to the mounting groove are symmetrically arranged on the mounting platform 9. The negative pressure ports 11 are located on both sides of the flexible hydraulic fixing bladder 10, and a negative pressure fan 12 is provided inside the mounting groove.

[0026] like Figure 2 As shown, the negative pressure fan 12 installed inside the mounting slot draws in surrounding air, reducing the air pressure inside the mounting slot and creating a negative pressure environment. Two negative pressure ports 11 are connected to the mounting slot, ensuring that the negative pressure effectively extends to both sides of the mounting side plate 8. When the spray liquid is suspended in the placement tank 7, due to the negative pressure, the tiny particles in the spray liquid are attracted to the negative pressure ports 11, thereby guiding the spray liquid towards the surface of the parts. The negative pressure effectively draws the spray liquid into the mounting slot, avoiding waste and uneven distribution of liquid during the spraying process. The spray liquid particles suspended in the air can be drawn in by the negative pressure, forming a more effective spray coverage with the target surface, ensuring that the spray liquid is evenly coated on the parts.

[0027] like Figure 1 and Figure 2 As shown, the top of the fixed frame 3 is provided with a bracket 13, and the bracket 13 is provided with a central axis. The central axis is inclined downward at 45° and passes through the center line of the rotating shaft 5. Two protective covers 14 are provided on the bracket 13 and symmetrically about the central axis, which slide synchronously. The bracket 13 is provided with a drive assembly 15 for driving the protective covers 14. The protective cover 14 is provided with a spray pipe 16. The output end of the spray pipe 16 is connected to several nozzles 17, which are evenly distributed on the inner surface of the protective cover 14.

[0028] like Figure 1 and Figure 2 As shown, specifically, by setting the central axis at a 45° angle, the sprayed liquid can better diffuse into the placement tank 7, avoiding excessive dispersion of the sprayed liquid in the air and reducing the impact of the external environment on the spraying effect. The 45° downward tilt of the central axis makes the direction of the sprayed liquid more aligned with the surface of the component, guiding the sprayed liquid more effectively into the placement tank 7. This design helps control the spraying range and reduces waste of sprayed liquid.

[0029] like Figure 1 and Figure 2 As shown, the design of the protective cover 14 and the configuration of the spray nozzles 17 inside the protective cover 14 can limit the diffusion range of the sprayed liquid, preventing excess sprayed liquid from spreading in the air, thereby reducing environmental pollution and improving spraying efficiency. Multiple spray nozzles 17 are evenly distributed on the inner surface of the protective cover 14, providing comprehensive spray coverage and better meeting the surface treatment needs of automotive parts of different shapes. The uniform configuration among the spray nozzles 17 ensures the uniformity of the spray.

[0030] like Figure 3 As shown, the inner surface of the protective cover 14 is concave, forming an arc-shaped recess 18 within it. The nozzles 17 are arrayed along the arc-shaped surface of the recess 18. This structural design of the recess 18 enhances the strength and stability of the protective cover 14 while reducing the impact of the external environment on the nozzles 17, thereby improving the overall system durability. The relative movement of the two protective covers 14 allows for a wider coverage area of ​​the nozzles 17, making them suitable for automotive parts of different sizes and achieving a more uniform spraying effect. By mimicking the opening and closing mechanism of a seashell, effective utilization and optimized proportioning of the internal space can be achieved.

[0031] Because the nozzles 17 are evenly distributed along the arc-shaped surface, and in conjunction with the movement of the shell, a more uniform spraying effect can be achieved, avoiding the dead corners and uneven spraying of traditional spraying methods.

[0032] like Figure 3 As shown, the drive assembly 15 includes an electric push rod 1501, a first connecting rod 1502, a second connecting rod 1503, and two irregularly shaped rods 1504 that slide inside the bracket 13. The electric push rod 1501 is existing technology under mature conditions. Specifically, the output end of the electric push rod 1501 is connected to a T-shaped rod 1505. Two slidable sliders 1506 are symmetrically arranged on the T-shaped rod 1505. One end of the first connecting rod 1502 is hinged to the slider 1506, and the other end of the first connecting rod 1502 is hinged to the bracket 13. One end of the second connecting rod 1503 is hinged to the slider 1506, and the other end of the second connecting rod 1503 is hinged to the irregularly shaped rods 1504. The two irregularly shaped rods 1504 are fixedly connected to the two protective covers 14 respectively.

[0033] like Figure 3 As shown, the T-shaped rod 1505 is pushed by the electric push rod 1501, and under the combined action of the first connecting rod 1502 and the second connecting rod 1503, the slider 1506 slides on the bracket 13, and the irregular rod 1504 slides inside the bracket 13, thereby achieving synchronous driving of the two protective covers 14.

[0034] like Figure 1As shown, a hot air drying assembly 19 is provided on the mounting bracket 3. The hot air drying assembly 19 is located diagonally below the bracket 13. The hot air drying assembly 19 includes a horizontal support plate 1901 and a hot air blower. The hot air blower is existing technology under mature conditions and will not be described in detail here. A drying hood 1902 is provided on the horizontal support plate 1901. The output end of the hot air blower is connected to the drying hood 1902 through a drying pipe 1903. Specifically, the hot air outlet of the drying hood 1902 is parallel to the base 1 and is used to dry automotive parts that are horizontal. When placed horizontally, gravity can help moisture flow out of the surface of the parts more quickly. Combined with the hot air drying effect, the moisture evaporates more thoroughly.

[0035] Working principle: When in use, the car parts are first fixed inside the placement slot 7 by the flexible hydraulic fixing bladder 10, and then the rotating shaft 5 is driven to rotate by the drive motor 4, so that the car parts placed on the rotating frame 6 rotate around the central axis of the rotating shaft 5.

[0036] When the automotive parts are transferred to the bracket 13, the user first pushes the T-shaped rod 1505 with the electric push rod 1501. Under the combined action of the first connecting rod 1502 and the second connecting rod 1503, the slider 1506 slides on the bracket 13, and the irregular rod 1504 slides inside the bracket 13. Together with the two protective covers 14, they move closer to the automotive parts, adjusting the distance between the nozzle 17 and the automotive parts to a suitable level. The two protective covers 14 and the placement groove 7 effectively block the spray liquid from further spreading in the air. The 45° downward tilt of the placement groove 7 allows the spray liquid to spread towards the interior of the placement groove 7, reducing environmental pollution and the impact on air quality during the spraying process. Moreover, the protective covers 14 not only prevent the spread of the spray liquid but also protect the operator and reduce the risk of accidental contact during the spraying process.

[0037] At the same time, the negative pressure fan 12 in the mounting groove keeps the inside of the negative pressure port 11 on both sides of the car parts in a negative pressure state. This is used to guide the spray liquid suspended in the placement groove 7 toward the surface of the car parts during the spraying process. On the other hand, it draws the spray liquid suspended in the placement groove 7 into the inside of the mounting groove.

[0038] Finally, for horizontally positioned automotive parts, gravity helps moisture flow out of the parts' surface more quickly when they are placed horizontally. Combined with the hot air drying effect of the hot air drying assembly 19, this makes the moisture evaporate more thoroughly.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spraying device for surface treatment of automotive parts, comprising a base (1), a support frame (2) and a fixing frame (3) disposed on the base (1), a drive motor (4) disposed on the support frame (2), and a rotating shaft (5) connected to the output end of the drive motor (4), characterized in that: The rotating shaft (5) is provided with a rotating frame (6), and the rotating frame (6) is provided with a number of placement slots (7) for placing automotive parts. The top of the fixed frame (3) is provided with a bracket (13), and the bracket (13) is provided with a central axis. The central axis is inclined downward at 45° and passes through the center line of the rotating shaft (5). The bracket (13) is provided with two relatively synchronously sliding protective covers (14) symmetrically about the central axis. The bracket (13) is provided with a drive assembly (15) for driving the protective covers (14). The protective cover (14) is provided with a spray pipe (16), and the output end of the spray pipe (16) is connected to a number of nozzles (17). The nozzles (17) are evenly distributed on the inner surface of the protective cover (14).

2. The spraying apparatus for surface treatment of automotive parts according to claim 1, characterized in that: The rotating frame (6) includes an inner core (601), and the rotating shaft (5) passes through the center of the inner core (601). The two shaft ends of the inner core (601) are respectively provided with a first side plate (602) and a second side plate (603). A plurality of partitions (604) are provided between the first side plate (602) and the second side plate (603). The plurality of partitions (604) are arranged at equal angles around the central axis of the inner core (601), and the plurality of partitions (604) divide the space enclosed by the first side plate (602), the second side plate (603) and the inner core (601) into a plurality of placement slots (7).

3. The spraying apparatus for surface treatment of automotive parts according to claim 2, characterized in that: The inner core (601) has a mounting side plate (8) inside the placement slot (7), and a mounting platform (9) is provided on the mounting side plate (8). The mounting side plate (8) has a mounting slot inside, and two negative pressure ports (11) connected to the mounting slot are symmetrically arranged on the mounting platform (9). A negative pressure fan (12) is provided inside the mounting slot.

4. The spraying apparatus for surface treatment of automotive parts according to claim 1, characterized in that: The inner surface of the protective cover (14) is concave and forms an arc-shaped concave portion (18) inside it. The nozzles (17) are arranged in an array along the arc-shaped surface of the concave portion (18). The two protective covers (14) move relative to each other.

5. The spraying apparatus for surface treatment of automotive parts according to claim 1, characterized in that: The drive assembly (15) includes an electric push rod (1501), a first connecting rod (1502), a second connecting rod (1503), and two irregular rods (1504) that slide inside the bracket (13). The output end of the electric push rod (1501) is connected to a T-shaped rod (1505). Two slidable sliders (1506) are symmetrically arranged on the T-shaped rod (1505). One end of the first connecting rod (1502) is hinged to the slider (1506), and the other end of the first connecting rod (1502) is hinged to the bracket (13). One end of the second connecting rod (1503) is hinged to the slider (1506), and the other end of the second connecting rod (1503) is hinged to the irregular rod (1504). The two irregular rods (1504) are fixedly connected to two protective covers (14) respectively.

6. The spraying apparatus for surface treatment of automotive parts according to claim 1, characterized in that: The fixed frame (3) is provided with a hot air drying assembly (19), which is located diagonally below the bracket (13). The hot air drying assembly (19) includes a horizontal support plate (1901) and a hot air blower. The horizontal support plate (1901) is provided with a drying hood (1902). The output end of the hot air blower is connected to the drying hood (1902) through a drying pipe (1903). The hot air outlet of the drying hood (1902) is parallel to the base (1) and is used to dry automotive parts in the horizontal direction.

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