Uniform painting spray gun for automobile hub coating

By designing a clamping and adjusting mechanism for the automotive wheel hub coating spray gun, the problems of uneven coating on the inner wall of the wheel hub and clogging of the spraying device were solved, achieving uniform coating of the wheel hub and stable operation of the device.

CN120940132APending Publication Date: 2025-11-14YANGZHOU VAYELP WHEEL CO LTD
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Patent Information

Application Number
CN202511074822.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

In the current automotive wheel painting process, the inner wall of the wheel hub cannot be coated due to the fixing of the clamps, resulting in uneven coating. In addition, the spraying equipment is prone to clogging, which affects the filtration effect.

Method used

A uniform paint spray gun for automotive wheel hub coating was designed. It uses a clamping mechanism to fix the inner wall of the wheel hub, and an adjustment mechanism and a drive mechanism to enable the atomizing nozzle to adapt to wheel hubs of different sizes and to rotate for spraying, ensuring uniform coating.

Benefits of technology

It achieves uniform coating on the inner wall of automobile wheel hubs, avoids the influence of clamps, improves coating effect and reduces clogging problems of spraying equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of automobile hubs, and discloses a uniform painting spray gun for automobile hub coating, the uniform painting spray gun comprises a base and an automobile hub body, the upper surface of the base is fixedly connected with a supporting block, and the inner fixed side of the supporting block is fixedly connected with a clamping mechanism; the automobile hub comprises an automobile hub body, the automobile hub body is fixed through a clamping mechanism, first sliding grooves are formed in the upper surface and the lower surface of the supporting block correspondingly, sleeves are slidably arranged in the two first sliding grooves correspondingly, a cavity is formed between the two first sliding grooves, and a first adjusting mechanism is arranged in the cavity; the two sleeves move through a first adjusting mechanism. According to the anti-theft well lid with the buffering mechanism, the inner wall of an automobile hub can be clamped, the inner wall of the automobile hub cannot be painted due to the fact that an inner tube needs to be installed subsequently, and therefore the automobile hub cannot be affected by a clamp in the paint spraying process, and the hub can be evenly painted.
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Description

Technical Field

[0001] This invention relates to the field of automobile wheel hubs, specifically to a uniform paint spray gun for automobile wheel hub coating. Background Technology

[0002] Wheel painting is an important part of automobile manufacturing. It not only enhances the aesthetic appearance of the wheels but also provides corrosion protection. The wheel painting process usually requires the use of spraying equipment.

[0003] Among them, the new energy vehicle wheel hub outer surface painting equipment disclosed in CN113318910B includes a base, a soaking water tank, a stirring block, a turntable, a feeding mechanism, a soaking mechanism, and a moving mechanism; the soaking water tank is located in the middle of the top of the base, the turntable is rotatably located behind the soaking water tank, three stirring blocks are evenly spaced on the turntable, the feeding mechanism is located on the left side of the top of the base, the soaking mechanism is located in the middle of the front side of the top of the base, and the moving mechanism is located on the rear side of the top of the base.

[0004] However, existing car wheel rims usually require clamps to be used to fix them during the painting process. These clamps may block the side wall of the wheel rim, resulting in insufficient paint on the edge of the rim. This requires touch-up painting later, which affects the overall appearance of the wheel rim. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a uniform painting spray gun for automotive wheel hubs. This gun clamps the inner wall of the wheel hub, which will not be painted as an inner tube will be installed later. This ensures the wheel hub is not affected by the clamp during the painting process, allowing for uniform painting. This invention also solves the problem of clogging caused by the limited space of the hopper in the feeding process of tilting manhole covers, which leads to material accumulation in the filter and affects subsequent filtration, making the machine inconvenient to use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an anti-theft manhole cover with a buffer mechanism, comprising a base and a car wheel hub body. A support block is fixedly connected to the upper surface of the base. A clamping mechanism is fixedly connected to one side of the support block. The car wheel hub body is fixed by the clamping mechanism. First grooves are formed on both the upper and lower surfaces of the support block. Sleeves are slidably arranged inside the two first grooves. A cavity is formed between the two first grooves. A first adjusting mechanism is arranged inside the cavity. The two sleeves move through the first adjusting mechanism. A moving plate is fixedly connected to one end of each sleeve. A through hole is formed on one side of each of the two moving plates. A three-way pipe is rotatably connected inside the two through holes. Atomizing nozzles are fixedly connected to the two output ends of the two three-way pipes. A fixing strip is fixedly connected to one side of the support block. A second groove is formed on one side of the fixing strip. A driving mechanism is arranged on one side of the second groove. The two three-way pipes are matched by the driving mechanism. A second adjusting mechanism is arranged inside the second groove. The second adjusting mechanism matches the driving mechanism.

[0009] Preferably, the clamping mechanism includes a bidirectional cylinder, two fixed plates and two arc-shaped clamping plates. The bidirectional cylinder is fixedly connected to one side of the support block, the two fixed plates are respectively fixedly connected to the two output ends of the bidirectional cylinder, and the two arc-shaped clamping plates are respectively fixedly connected to the side wall of one end of the corresponding fixed plate.

[0010] Preferably, the first adjusting mechanism includes a first motor, a plurality of first bevel gears, and two first lead screws. The two first lead screws are rotatably connected to the lower surface of the corresponding first slide groove. The interior of each of the two sleeves is provided with an internal thread groove. The two sleeves are respectively threaded onto the rod wall of the corresponding first lead screw through the corresponding internal thread groove. The first motor is fixedly connected to one side of the support block. The output end of the first motor passes through one side of the support block and extends into the interior of the cavity. Each first bevel gear is fixedly sleeved onto the outer surface of the corresponding first lead screw and the output end of the first motor. One of the first bevel gears meshes with the other two first bevel gears.

[0011] Preferably, the second adjustment mechanism includes a second lead screw, a slider, and a knob. The second lead screw is rotatably connected to the inside of the second slide groove, the slider is threaded onto the wall of the second lead screw, and one end of the second lead screw passes through one side of the second slide groove and is fixedly connected to the knob.

[0012] Preferably, the drive mechanism includes a second motor, multiple sprockets, a chain, two rotating rods, two support plates, and multiple second bevel gears. The second motor is fixedly connected to one side of the slider. The two support plates are respectively fixedly connected to one side of the corresponding moving plate. A circular hole is opened on one side of each of the two support plates. The two rotating rods are respectively rotatably connected to the inside of the corresponding circular hole. Each sprocket is fixedly sleeved on the outer surface of the output end of the two rotating rods and the second motor. The chain is sleeved on the outer surface of each sprocket. Each second bevel gear is fixedly sleeved on the rod wall of the corresponding rotating rod and the three-way pipe. The two corresponding three-way pipes are engaged.

[0013] Preferably, each of the two first sliding grooves has a limiting groove inside, and a limiting block is slidably disposed inside each limiting groove. Each limiting block is fixedly connected to the side wall of the corresponding sleeve.

[0014] Preferably, the sidewall of the slider is in contact with the inner wall of the second groove.

[0015] Preferably, a support base is fixedly connected to the lower surface of the base.

[0016] Preferably, one end of each of the two three-way pipes is rotatably connected to an inlet pipe.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an anti-theft manhole cover with a buffer mechanism, which has the following beneficial effects:

[0019] 1. The uniform paint spray gun for painting automobile wheel hubs, by starting the first motor, causes the first bevel gear connected to it to rotate, which in turn drives the other two first bevel gears to rotate, which in turn drives the two first lead screws to rotate, which in turn moves the two moving plates, that is, drives each moving plate to move, so that the atomizing nozzle can move up and down, so that the device can be applied to automobile wheel hubs of different sizes.

[0020] 2. The uniform paint spray gun for painting car wheel hubs, by starting the second motor, causes the sprocket connected to it to rotate, and then the chain drive causes the other two sprockets to rotate, thereby allowing the two rotating rods to rotate, which in turn causes each atomizing nozzle to rotate, so that the atomizing nozzles can evenly spray paint onto the surface of the wheel hub. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a uniform paint spray gun structure for automotive wheel hub coating proposed in this invention.

[0022] Figure 2 In this invention Figure 1 A schematic diagram of the structure after removing a car wheel hub;

[0023] Figure 3 for Figure 1 A sectional view;

[0024] Figure 4 for Figure 2 Side sectional view;

[0025] Figure 5 for Figure 1 A three-dimensional structural diagram of the arc-shaped clamping plate.

[0026] In the diagram: 1. Base, 2. Car wheel hub body, 3. Support block, 4. Sleeve, 5. Moving plate, 6. T-pipe, 7. Atomizing nozzle, 8. Fixing strip, 9. Two-way cylinder, 10. Fixing plate, 11. Arc-shaped clamp, 12. First motor, 13. First bevel gear, 14. First lead screw, 15. Second lead screw, 16. Slider, 17. Knob, 18. Second motor, 19. Sprocket, 20. Chain, 21. Rotating rod, 22. Support plate, 23. Second bevel gear, 24. Limiting block, 25. Support base, 26. Liquid inlet pipe. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] Please see Figure 1-5 A uniform paint spray gun for painting automobile wheel hubs includes a base 1 and an automobile wheel hub body 2. A support block 3 is fixedly connected to the upper surface of the base 1. A clamping mechanism is fixedly connected to one side of the support block 3. The automobile wheel hub body 2 is fixed by the clamping mechanism. The clamping mechanism includes a bidirectional cylinder 9, two fixing plates 10 and two arc-shaped clamping plates 11. The bidirectional cylinder 9 is fixedly connected to one side of the support block 3. The two fixing plates 10 are respectively fixedly connected to the two output ends of the bidirectional cylinder 9. The two arc-shaped clamping plates 11 are respectively fixedly connected to the side wall of one end of the corresponding fixing plate 10.

[0030] The car wheel hub body 2 is placed between two arc-shaped clamping plates 11. Then, the bidirectional cylinder 9 is activated, which allows the two fixing plates 10 to move, so that the two arc-shaped clamping plates 11 can clamp the inner wall of the car wheel hub body 2, thereby fixing the car wheel hub body 2.

[0031] Please see Figure 1-4The support block 3 has first sliding grooves on both its upper and lower surfaces. Sleeves 4 are slidably installed inside each of the two first sliding grooves. A cavity is formed between the two first sliding grooves. A first adjustment mechanism is set inside the cavity. Both sleeves 4 move through the first adjustment mechanism. The first adjustment mechanism includes a first motor 12, multiple first bevel gears 13, and two first lead screws 14. The two first lead screws 14 are rotatably connected to the lower surface inside the corresponding first sliding groove. Both sleeves 4 have internal thread grooves inside. The two sleeves 4 are threaded onto the rod wall of the corresponding first lead screw 14 through the corresponding internal thread grooves. The first motor 12 is fixedly connected to one side of the support block 3. The output end of the first motor 12 passes through one side of the support block 3 and extends into the cavity. Each first bevel gear 13 is fixedly sleeved onto the outer surface of the corresponding first lead screw 14 and the output end of the first motor 12. One first bevel gear 13 meshes with the other two first bevel gears 13.

[0032] Start the first motor 12 to make the first bevel gear 13 connected to it rotate, which in turn drives the other two first bevel gears 13 to rotate, which in turn drives the two first lead screws 14 to rotate, which in turn moves the two moving plates 5, that is, drives each moving plate 5 to move, so that the atomizing nozzle 7 can move up and down, so that the device can be adapted to different sizes of car wheel hub bodies 2.

[0033] Please see Figure 1-4 Each of the two sleeves 4 has a movable plate 5 fixedly connected to one end. Each of the two movable plates 5 has a through hole on one side. A three-way pipe 6 is rotatably connected inside each of the two through holes. Atomizing nozzles 7 are fixedly connected to the two output ends of the two three-way pipes 6. A fixing strip 8 is fixedly connected to one side of the support block 3. A second sliding groove is provided on one side of the fixing strip 8. A driving mechanism is provided on one side of the second sliding groove. The driving mechanism includes a second motor 18, multiple sprockets 19, a chain 20, two rotating rods 21, two support plates 22, and multiple second cones. Gear 23 and second motor 18 are fixedly connected to one side of slider 16. Two support plates 22 are fixedly connected to one side of corresponding moving plate 5. Circular holes are opened on one side of each support plate 22. Two rotating rods 21 are rotatably connected to the inside of the corresponding circular holes. Each sprocket 19 is fixedly sleeved on the outer surface of the output end of the two rotating rods 21 and second motor 18. Chain 20 is sleeved on the outer surface of each sprocket 19. Each second bevel gear 23 is fixedly sleeved on the corresponding rotating rod 21 and three-way pipe 6.

[0034] Start the second motor 18 to rotate the sprocket 19 connected to it. Then, the chain 20 will drive the other two sprockets 19 to rotate, which will allow the two rotating rods 21 to rotate. This will allow each atomizing nozzle 7 to rotate, so that the atomizing nozzle 7 can spray paint evenly onto the surface of the hub.

[0035] Please see Figure 1-4 Both three-way pipes 6 are matched by a drive mechanism. A second adjustment mechanism is provided inside the second slide groove. The second adjustment mechanism matches the rod wall of the drive mechanism, and the corresponding two three-way pipes 6 are engaged. The second adjustment mechanism includes a second lead screw 15, a slider 16 and a knob 17. The second lead screw 15 is rotatably connected to the inside of the second slide groove. The slider 16 is threaded onto the rod wall of the second lead screw 15. One end of the second lead screw 15 passes through one side of the second slide groove and is fixedly connected to the knob 17.

[0036] When the two moving plates 5 move, the two knobs 17 are rotated at the same time to make the second lead screw 15 rotate, so that the slider 16 can drive the second motor 18 to move left and right, and then the chain 20 can be in a tight state.

[0037] Example 2

[0038] Based on Example 1, referring to Figure 3 Both first slide grooves have limit grooves inside, and each limit groove has a limit block 24 slidably installed inside. Each limit block 24 is fixedly connected to the side wall of the corresponding sleeve 4.

[0039] Each limiting block 24 can be used to limit the movement, thereby preventing the sleeve 4 from rotating along with the corresponding first lead screw 14.

[0040] Example 3

[0041] Based on Example 1, referring to Figure 3 The side wall of slider 16 fits against the inner wall of the second groove.

[0042] Because the side wall of slider 16 fits against the inner wall of the second groove, slider 16 is prevented from rotating along with the rotation of the second lead screw 15.

[0043] Example 4

[0044] Based on Example 1, referring to Figure 1-4 A support base 25 is fixedly connected to the lower surface of the base 1.

[0045] Each support base 25 can provide support, allowing the base 1 to be raised, thus facilitating the movement of the movable plate 5 below.

[0046] Example 5

[0047] Based on Example 1, referring to Figure 1-4 One end of each of the two three-way pipes 6 is rotatably connected to an inlet pipe 26.

[0048] Paint can be easily fed into the inside of the three-way pipe 6 using the inlet pipe 26 so that the atomizing nozzle 7 can spray out the paint.

[0049] In summary, this paint spray gun for uniformly applying paint to car wheel rims is effective in use.

[0050] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform paint spray gun for painting automobile wheel hubs, comprising a base (1) and an automobile wheel hub body (2), characterized in that: A support block (3) is fixedly connected to the upper surface of the base (1). A clamping mechanism is fixedly connected to one side of the support block (3). The car wheel hub body (2) is fixed by the clamping mechanism. First grooves are provided on both the upper and lower surfaces of the support block (3). Sleeves (4) are slidably arranged inside the two first grooves. A cavity is provided between the two first grooves. A first adjustment mechanism is provided inside the cavity. Both sleeves (4) can move through the first adjustment mechanism. A moving plate is fixedly connected to one end of each sleeve (4). (5) Each of the two movable plates (5) has a through hole on one side, and a three-way pipe (6) is rotatably connected inside each of the two through holes. Atomizing nozzles (7) are fixedly connected to the two output ends of the two three-way pipes (6). A fixing strip (8) is fixedly connected to one side of the support block (3). A second sliding groove is provided on one side of the fixing strip (8). A driving mechanism is provided on one side of the second sliding groove. The two three-way pipes (6) are matched by the driving mechanism. A second adjustment mechanism is provided inside the second sliding groove. The second adjustment mechanism is matched with the driving mechanism.

2. The uniform paint spray gun for automotive wheel hub coating according to claim 1, characterized in that: The clamping mechanism includes a bidirectional cylinder (9), two fixed plates (10) and two arc-shaped clamping plates (11). The bidirectional cylinder (9) is fixedly connected to one side of the support block (3). The two fixed plates (10) are respectively fixedly connected to the two output ends of the bidirectional cylinder (9). The two arc-shaped clamping plates (11) are respectively fixedly connected to the side wall of one end of the corresponding fixed plate (10).

3. The uniform paint spray gun for automotive wheel hub coating according to claim 1, characterized in that: The first adjustment mechanism includes a first motor (12), a plurality of first bevel gears (13) and two first lead screws (14). The two first lead screws (14) are rotatably connected to the lower surface of the corresponding first slide groove. The two sleeves (4) are provided with internal thread grooves. The two sleeves (4) are threaded onto the rod wall of the corresponding first lead screw (14) through the corresponding internal thread grooves. The first motor (12) is fixedly connected to one side of the support block (3). The output end of the first motor (12) passes through one side of the support block (3) and extends into the cavity. Each first bevel gear (13) is fixedly sleeved on the outer surface of the corresponding first lead screw (14) and the output end of the first motor (12). One of the first bevel gears (13) meshes with the other two first bevel gears (13).

4. The uniform paint spray gun for automotive wheel hub coating according to claim 1, characterized in that: The second adjustment mechanism includes a second lead screw (15), a slider (16), and a knob (17). The second lead screw (15) is rotatably connected to the inside of the second slide groove. The slider (16) is threaded onto the wall of the second lead screw (15). One end of the second lead screw (15) passes through one side of the second slide groove and is fixedly connected to the knob (17).

5. The uniform paint spray gun for automotive wheel hub coating according to claim 1, characterized in that: The drive mechanism includes a second motor (18), multiple sprockets (19), a chain (20), two rotating rods (21), two support plates (22), and multiple second bevel gears (23). The second motor (18) is fixedly connected to one side of the slider (16). The two support plates (22) are respectively fixedly connected to one side of the corresponding moving plate (5). A circular hole is opened on one side of each of the two support plates (22). The two rotating rods (21) are respectively rotatably connected to the inside of the corresponding circular hole. Each sprocket (19) is respectively fixedly sleeved on the outer surface of the two rotating rods (21) and the output end of the second motor (18). The chain (20) is sleeved on the outer surface of each sprocket (19). Each second bevel gear (23) is respectively fixedly sleeved on the rod wall of the corresponding rotating rod (21) and the three-way pipe (6). The two corresponding three-way pipes (6) mesh.

6. The uniform paint spray gun for automotive wheel hub coating according to claim 2, characterized in that: Both of the first slide grooves have a limiting groove inside, and a limiting block (24) is slidably arranged inside each limiting groove. Each limiting block (24) is fixedly connected to the side wall of the corresponding sleeve (4).

7. The uniform paint spray gun for automotive wheel hub coating according to claim 4, characterized in that: The sidewall of the slider (16) is in contact with the inner wall of the second groove.

8. The uniform paint spray gun for automotive wheel hub coating according to claim 1, characterized in that: A support base (25) is fixedly connected to the lower surface of the base (1).

9. The uniform paint spray gun for automotive wheel hub coating according to claim 1, characterized in that: One end of each of the two three-way tubes (6) is rotatably connected to an inlet tube (26).

Citation Information

Patent Citations

  • A painting device for the outer surface of new energy vehicle wheel hubs

    CN113318910B