A rotary spray head for spraying automobile parts

By designing a rotating nozzle and utilizing a motor-driven gear system and sealing structure, the problem of high cost in robotic arm spraying was solved, achieving low-cost and high-efficiency spraying of automotive parts and ensuring stable paint delivery and spraying effect.

CN224542075UActive Publication Date: 2026-07-24HUBEI AIDE AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI AIDE AUTO PARTS CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-24

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    Figure CN224542075U_ABST
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Abstract

The utility model discloses a kind of rotating spray heads for automobile accessory spraying, including rotating pipe, the bottom of rotating pipe is welded with cross pipe, the bottom of cross pipe is provided with the nozzle of uniform distribution, the top bearing of rotating pipe is connected with installation shell, the top outer wall of installation shell is fixed with motor, the output shaft of motor extends to the inside fixed with driving gear of installation shell, the top extension of rotating pipe is fixed with driven gear in the inside of installation shell, driving gear is engaged with driven gear, the top outer wall of installation shell is welded with fixed pipe, the bottom end of fixed pipe extends to the inside of rotating pipe.The utility model is rotated by motor driving driving gear, so that driving gear drives driven gear, rotating pipe and cross pipe are rotated, and then when the top of area smaller automobile accessory is sprayed, mechanical hand is not needed, the cost of equipment is reduced, and then the expenditure of enterprise is saved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts spraying technology, specifically to a rotary spray head for automotive parts spraying. Background Technology

[0002] Cars are an indispensable means of transportation in life. During the production process of cars, many parts need to be coated with paint to make the appearance of car parts more beautiful.

[0003] Currently, when painting automotive parts, the spray head is usually mounted on a robotic arm, which moves the spray head to achieve front-side painting of the automotive parts. However, since robotic arms are relatively expensive, using them for front-side painting of some small automotive parts undoubtedly increases the cost of equipment purchases for companies. Therefore, there is an urgent need to design a rotary spray head for automotive parts painting to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary spray head for painting automotive parts, in order to overcome the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A rotary spray head for painting automotive parts includes a rotary tube, a horizontal tube welded to the bottom of the rotary tube, and uniformly distributed nozzles at the bottom of the horizontal tube. A mounting housing is connected to the top of the rotary tube by a bearing. A motor is fixed to the top outer wall of the mounting housing. A drive gear is fixed inside the mounting housing by the output shaft of the motor. A driven gear is fixed inside the mounting housing by the top of the rotary tube. The drive gear meshes with the driven gear. A fixing tube is welded to the top outer wall of the mounting housing, and the bottom end of the fixing tube extends into the interior of the rotary tube.

[0006] Furthermore, a mounting plate is welded to the side wall of the mounting shell, and the side wall of the mounting plate is provided with mounting holes.

[0007] Furthermore, the bottom outer wall of the horizontal tube is welded with evenly distributed connecting tubes, and the nozzle is threadedly connected to the bottom end of the connecting tube.

[0008] Furthermore, the inner wall of the rotating tube is provided with a sealing groove, and a sealing ring is provided inside the sealing groove. The sealing ring is fitted onto the outside of the fixed tube.

[0009] Furthermore, a retaining ring is integrally formed at the top of the fixed tube, and a threaded ring is integrally formed on the outer wall of the top of the retaining ring.

[0010] Furthermore, the threaded ring has a plug tube welded inside, the outer wall of the plug tube is integrally formed with a tapered ring, the threaded ring is threaded with a nut, the nut has a tapered surface inside that matches the tapered ring, the nut has a plug hole at the center, and the top end of the plug tube extends into the plug hole.

[0011] In the above technical solution, the rotary spray head for painting automotive parts provided by this utility model has the following advantages: The motor drives the drive gear to rotate, which in turn drives the driven gear, the rotating tube, and the horizontal tube to rotate. This eliminates the need for a robotic arm when painting the top of small automotive parts, reducing equipment costs and saving expenses for the company. A sealing ring is installed in the sealing groove of the rotating tube, ensuring a good dynamic seal between the rotating tube and the fixed tube, preventing paint leakage during painting. A conical ring is installed on the outside of the insertion tube, allowing the conical surface of the nut to press firmly against the hose fitted onto the conical ring when the nut and threaded ring are threaded together, achieving a convenient and secure connection for the paint delivery hose. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a rotary spray head for painting automotive parts according to the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of the mounting housing provided in an embodiment of a rotary spray head for painting automotive parts according to this utility model.

[0015] Figure 3 This is a schematic diagram of the nut structure provided in an embodiment of a rotary spray head for painting automotive parts according to this utility model.

[0016] Figure 4 This is an enlarged structural diagram of point A in an embodiment of a rotary spray head for painting automotive parts according to this utility model.

[0017] Explanation of reference numerals in the attached figures: 1 Rotating tube, 2 Fixed tube, 3 Mounting shell, 4 Mounting plate, 5 Mounting hole, 6 Motor, 7 Horizontal tube, 8 Connecting tube, 9 Nozzle, 10 Driven gear, 11 Driven gear, 12 Sealing groove, 13 Sealing ring, 14 Retaining ring, 15 Threaded ring, 16 Insertion tube, 17 Nut, 18 Conical surface, 19 Conical ring, 20 Insertion hole. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-4 As shown in the figure, the present invention provides a rotary spray head for painting automotive parts, including a rotary tube 1, a horizontal tube 7 welded to the bottom of the rotary tube 1, nozzles 9 evenly distributed at the bottom of the horizontal tube 7, a mounting shell 3 connected to the top of the rotary tube 1 by a bearing, a motor 6 fixed to the top outer wall of the mounting shell 3, a drive gear 11 fixed to the output shaft of the motor 6 extending into the interior of the mounting shell 3, a driven gear 10 fixed to the top of the rotary tube 1 extending into the interior of the mounting shell 3, the drive gear 11 meshing with the driven gear 10, and a fixing tube 2 welded to the top outer wall of the mounting shell 3, the bottom end of the fixing tube 2 extending into the interior of the rotary tube 1.

[0020] Specifically, in this embodiment, a rotating tube 1 is included. A horizontal tube 7 is welded to the bottom of the rotating tube 1. The bottom of the horizontal tube 7 is provided with evenly distributed nozzles 9, so that when the nozzles 9 spray paint, the spraying area can be increased when the horizontal tube 7 rotates with the rotating tube 1. At the same time, the size of the area of ​​the car parts to be sprayed needs to be within the spraying range of the nozzles 9. The top of the rotating tube 1 is connected to a mounting shell 3 by a bearing. A motor 6 is fixed to the top outer wall of the mounting shell 3. The output shaft of the motor 6 extends into the interior of the mounting shell 3 and a drive gear 11 is fixed therein. The top of the rotating tube 1 extends into the interior of the mounting shell 3 and a driven gear 10 is fixed therein. The drive gear 11 meshes with the driven gear 10, so that the motor 6 drives the drive gear 11 to rotate. The rotation of the drive gear 11 drives the driven gear 10 and the rotating tube 1 to rotate. A fixed tube 2 is welded to the top outer wall of the mounting shell 3, and the bottom end of the fixed tube 2 extends into the interior of the rotating tube 1.

[0021] This utility model provides a rotary spray head for painting automotive parts. The motor 6 drives the drive gear 11 to rotate, which in turn drives the driven gear 10, the rotary tube 1, and the horizontal tube 7 to rotate. This eliminates the need for a robotic arm when painting the top of small automotive parts. The rotary spray head is cheaper than a robotic arm, reducing the cost of purchasing equipment and saving expenses for the company.

[0022] In another embodiment of this utility model, a mounting plate 4 is welded to the side wall of the mounting shell 3. The side wall of the mounting plate 4 is provided with mounting holes 5. When in use, the mounting plate 4 needs to be fixed above the automotive parts to be sprayed with bolts so that the automotive parts are within the area swept by the horizontal tube 7. The bottom outer wall of the horizontal tube 7 is welded with evenly distributed connecting tubes 8. The nozzle 9 is threaded to the bottom end of the connecting tube 8. After the paint enters the fixed tube 2, it passes through the rotating tube 1, the horizontal tube 7 and the connecting tube 8 in sequence, and then is sprayed out from the nozzle 9. When the nozzle 9 is damaged, it is easy to disassemble and replace it by means of threaded connection.

[0023] In another embodiment of this utility model, a sealing groove 12 is provided on the inner wall of the rotating tube 1, and a sealing ring 13 is provided inside the sealing groove 12. The sealing ring 13 is sleeved on the outside of the fixed tube 2. By providing the sealing ring 13 in the sealing groove 12 of the rotating tube 1, a good dynamic sealing effect can be achieved between the rotating tube 1 and the fixed tube 2, thereby ensuring that no paint leakage occurs during spraying. A retaining ring 14 is integrally formed at the top end of the fixed tube 2, and a threaded ring 15 is integrally formed on the outer wall of the top of the retaining ring 14. A insertion tube 16 is welded inside the threaded ring 15. The outer wall is integrally formed with a conical ring 19, and the external thread of the threaded ring 15 is connected to a nut 17. The nut 17 has a conical surface 18 that is adapted to the conical ring 19. The center of the nut 17 is provided with a plug hole 20. The top end of the plug tube 16 extends into the plug hole 20. By providing a conical ring 19 on the outside of the plug tube 16, when the nut 17 is threadedly connected to the threaded ring 15, the conical surface 18 of the nut 17 can press the hose sleeved on the conical ring 19, thereby achieving the effect of convenient and firm connection of the paint delivery hose.

[0024] Working principle: In use, the nut 17 is fitted onto the outside of the hose that delivers the paint, and then the hose is fitted onto the outside of the conical ring 19 of the connector 16. Next, the nut 17 is threaded onto the threaded ring 15, so that the nut 17 presses and fixes the hose, thus connecting the hose to the fixed pipe 2. When it is necessary to rotate the horizontal pipe 7, the motor 6 drives the drive gear 11 to rotate, which in turn drives the driven gear 10 and the rotating pipe 1 to rotate, thereby causing the rotating pipe 1 to drive the horizontal pipe 7 to rotate. When the nozzle 9 sprays paint, the rotation of the horizontal pipe 7 allows for a larger area of ​​paint to be sprayed on the automotive parts.

[0025] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotary spray head for painting automotive parts, characterized in that, The device includes a rotating tube (1), a horizontal tube (7) welded to the bottom of the rotating tube (1), and nozzles (9) evenly distributed at the bottom of the horizontal tube (7). A mounting shell (3) is connected to the top of the rotating tube (1) by a bearing. A motor (6) is fixed to the top outer wall of the mounting shell (3). The output shaft of the motor (6) extends into the interior of the mounting shell (3) and a drive gear (11) is fixed therein. A driven gear (10) is fixed to the top of the rotating tube (1) extending into the interior of the mounting shell (3). The drive gear (11) meshes with the driven gear (10). A fixed tube (2) is welded to the top outer wall of the mounting shell (3). The bottom end of the fixed tube (2) extends into the interior of the rotating tube (1).

2. The rotary spray head for painting automotive parts according to claim 1, characterized in that, The mounting shell (3) has a mounting plate (4) welded to its side wall, and the mounting plate (4) has mounting holes (5) on its side wall.

3. The rotary spray head for painting automotive parts according to claim 1, characterized in that, The bottom outer wall of the horizontal tube (7) is welded with evenly distributed connecting tubes (8), and the nozzle (9) is threaded to the bottom end of the connecting tube (8).

4. The rotary spray head for painting automotive parts according to claim 1, characterized in that, The inner wall of the rotating tube (1) is provided with a sealing groove (12), and a sealing ring (13) is provided inside the sealing groove (12). The sealing ring (13) is sleeved on the outside of the fixed tube (2).

5. A rotary spray head for painting automotive parts according to claim 1, characterized in that, The top end of the fixed tube (2) is integrally formed with a retaining ring (14), and the outer wall of the top of the retaining ring (14) is integrally formed with a threaded ring (15).

6. A rotary spray head for painting automotive parts according to claim 5, characterized in that, The threaded ring (15) has a plug tube (16) welded inside. The outer wall of the plug tube (16) is integrally formed with a conical ring (19). The threaded ring (15) is connected to a nut (17) by external threads. The nut (17) has a conical surface (18) inside that matches the conical ring (19). The nut (17) has a plug hole (20) at its center. The top end of the plug tube (16) extends into the plug hole (20).