Spraying device for automobile bumper machining
By incorporating a motor-driven gear system and threaded rod design within the paint tank, uniform mixing of the paint and automatic conveying of the bumper are achieved, solving the problem of unevenness caused by paint settling, improving spraying quality, and reducing the workload of employees.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-03
AI Technical Summary
In existing technologies, during the storage process of paint, due to the density differences of each component, solid particles such as pigments and fillers will settle, resulting in uneven paint application on car bumpers.
The motor-driven gear system rotates the mixing rod inside the paint tank. Combined with the design of the threaded rod and mounting plate, it achieves uniform mixing of the paint and automatic delivery of the bumper, eliminating the need for manual movement.
This solved the problem of uneven coating, improved the spraying quality, and reduced the workload of employees.
Smart Images

Figure CN223959873U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of spraying devices for automobile bumper processing, and in particular to a spraying device for automobile bumper processing. Background Technology
[0002] As a crucial component of a vehicle's safety system, the car bumper primarily functions to absorb and mitigate external impact forces. Its structural design typically utilizes high-strength engineering plastics or composite materials, and incorporates internal energy-absorbing devices to effectively disperse and buffer impact energy during a collision. In low-speed collisions, the bumper protects vital components such as front and rear lights and radiators from damage. In higher-speed collisions, it works in conjunction with the vehicle's longitudinal beams, absorbing energy through crumple zone deformation and reducing damage to the vehicle's structure.
[0003] In the complex and meticulous manufacturing process of car bumpers, the painting process is crucial. After the basic shaping and sanding of the bumper are completed, the painting stage begins. First, workers need to move the bumper to a dedicated painting area, which is usually subjected to strict dust-free treatment to ensure the purity of the paint.
[0004] While the aforementioned technologies enable painting of car bumpers, the paint is prone to stratification and solidification during storage, a phenomenon determined by its physicochemical properties. When the paint is left to stand in the paint tank, due to the density differences of its components, solid particles such as pigments and fillers gradually settle, resulting in uneven paint application onto the car bumper. Therefore, a painting device for car bumper processing is proposed to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a spraying device for automobile bumper processing, which aims to solve the problem in the prior art that when the paint is left to stand in the paint tank, due to the density difference of each component, solid particles such as pigments and fillers will gradually settle, resulting in uneven paint spraying on the automobile bumper.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spraying device for processing automobile bumpers, comprising a base, slide rails fixedly connected to the top two sides of the base, a conveying assembly provided on the top of the base, a receiving box slidably connected to the right side of the base, a bracket fixedly connected to the top of the slide rails, a paint tank fixedly connected to the top of the bracket, a support foot fixedly connected to the top of the bracket, an inlet opening on the top of the paint tank, a second pipe fixedly connected to the bottom outer wall of the bracket, a first pipe fixedly connected to the top of the second pipe, a third pipe fixedly connected to the inner walls on both sides of the bracket, a paint tank mixing assembly provided on the top of the bracket, and a spray nozzle fixedly connected to the outer wall of the third pipe;
[0007] The paint tank mixing assembly includes a motor, the output shaft of which is rotatably connected to a first gear, and a second gear, a third gear, and a fourth gear meshing around the first gear.
[0008] As a further description of the above technical solution:
[0009] The paint tank mixing assembly includes a No. 1 mixing rod, a No. 2 mixing rod, and a No. 3 mixing rod. The top of the No. 1 mixing rod is fixedly connected to the bottom of the No. 2 gear, the top of the No. 2 mixing rod is fixedly connected to the bottom of the No. 3 gear, and the top of the No. 3 mixing rod is fixedly connected to the bottom of the No. 4 gear. Internal gears mesh around the No. 2, No. 3, and No. 4 gears.
[0010] As a further description of the above technical solution:
[0011] The conveying assembly includes a threaded rod, a mounting plate is threadedly connected to the outer wall of the threaded rod, a bumper support frame is fixedly connected to the top of the mounting plate, and a crank handle is fixedly connected to the front end of the threaded rod.
[0012] As a further description of the above technical solution:
[0013] The No. 3 pipeline is provided in two sets, and the input ends of the two sets of the No. 3 pipeline are fixed and connected to both ends of the No. 2 pipeline.
[0014] As a further description of the above technical solution:
[0015] The front end of the receiving box is fixedly connected to a handle, the top of the No. 1 pipe is fixedly connected to the bottom of the paint tank, and the top of the support leg is fixedly connected to the bottom of the paint tank.
[0016] As a further description of the above technical solution:
[0017] The outer wall of the internal gear is fixedly connected to the inner wall of the top of the paint tank.
[0018] As a further description of the above technical solution:
[0019] The two sides of the mounting plate are slidably connected to the inside of the slide rail.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by setting up a motor, a first gear, and a first stirring rod, the motor is turned on to drive the first gear connected to the motor to rotate, so that the second, third, and fourth gears meshing with the first gear rotate simultaneously, driving the first, second, and third stirring rods to rotate in the paint tank. This solves the problem that when the paint is left to stand in the paint tank, due to the density differences of the components, solid particles such as pigments and fillers will gradually settle, resulting in uneven paint spraying on the car bumper.
[0022] 2. In this utility model, by setting a threaded rod, a mounting plate, and a crank, the crank is manually turned clockwise to make the threaded rod rotate and drive the mounting plate to move forward on the threaded rod. At the same time, the mounting plate slides forward in the slide rail, which solves the problem of manually moving each item one by one during transportation, thus increasing the workload of employees. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a spraying device for processing automobile bumpers proposed in this utility model.
[0024] Figure 2 This is a schematic diagram of the structure of a bracket for a spraying device used in automobile bumper processing, as proposed in this utility model.
[0025] Figure 3 This is a schematic diagram of the paint tank mixing assembly of a spraying device for processing automobile bumpers, as proposed in this utility model.
[0026] Figure 4 This is a schematic diagram of the conveying assembly of a spraying device for processing automobile bumpers, as proposed in this utility model.
[0027] Legend:
[0028] 1. Base; 2. Slide rail; 3. Bracket; 4. Support foot; 5. Paint tank mixing assembly; 51. Motor; 52. Gear No. 1; 53. Gear No. 2; 54. Gear No. 3; 55. Gear No. 4; 56. Internal gear; 57. Stirring rod No. 1; 58. Stirring rod No. 2; 59. Stirring rod No. 3; 6. Conveying assembly; 61. Threaded rod; 62. Handle; 63. Mounting plate; 64. Bumper support frame; 7. Pipe No. 1; 8. Pipe No. 2; 9. Pipe No. 3; 10. Nozzle; 11. Inlet; 12. Receiving box; 13. Handle; 14. Paint tank. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figures 1-4 This utility model provides an embodiment of a spraying device for processing car bumpers, including a base 1, with slide rails 2 fixedly connected to the top two sides of the base 1, a conveying assembly 6 inside the slide rails 2, and a receiving box 12 slidably connected to the right side of the base 1. The receiving box 12 is used to collect excess paint after it has been sprayed onto the surface of the bumper. Due to gravity and the curved structure of the bumper itself, the excess paint flows into the receiving box 12, thus facilitating the recycling of excess paint. A bracket 3 is fixedly connected to the top of the slide rails 2, and a paint tank 14 is fixedly connected to the top of the bracket 3. Several support feet 4 are fixedly connected to the top of the bracket 3. An inlet 11 is opened at the top of the paint tank 14, which facilitates the replenishment of paint. A second pipe 8 is fixedly connected to the bottom outer wall of the bracket 3, and a first pipe 7 is fixedly connected to the top of the second pipe 8. A third pipe 9 is fixedly connected to the inner walls on both sides of the bracket 3. A paint tank stirring assembly 5 is provided at the top of the bracket 3, and several nozzles 10 are fixedly connected to the outer wall of the third pipe 9.
[0031] The paint tank mixing assembly 5 includes a motor 51. When the motor 51 is turned on, it drives the first gear 52 connected to the output end of the motor 51 to rotate, so that the second gear 53, the third gear 54, and the fourth gear 55, which mesh with the first gear 52, rotate inside the internal gear 56 at the top of the paint tank 14. The output shaft of the motor 51 is rotatably connected to the first gear 52, and the second gear 53, the third gear 54, and the fourth gear 55 are respectively meshed around the first gear 52.
[0032] Reference Figures 1-4The paint tank mixing assembly 5 includes a first mixing rod 57, a second mixing rod 58, and a third mixing rod 59. The top of the first mixing rod 57 is fixedly connected to the bottom of the second gear 53, and the top of the second mixing rod 58 is fixedly connected to the bottom of the third gear 54. The rotation of the second gear 53, the third gear 54, and the fourth gear 55 drives the first mixing rod 57, the second mixing rod 58, and the third mixing rod 59 connected to them to rotate inside the paint tank 14, thereby mixing the paint inside the paint tank 14. This solves the problem that when the paint is left to stand in the paint tank 14, due to the density differences of the components, solid particles such as pigments and fillers will gradually settle, resulting in uneven paint spraying onto the car bumper. The conveying assembly 6 includes a threaded rod 61, with a mounting plate 63 threadedly connected to the outer wall of the threaded rod 61. A crank handle 62 is fixedly connected to the front end of the threaded rod 61. Rotating the crank handle 62 clockwise or counterclockwise causes the threaded rod to move. The rotation of the threaded rod 61 causes the mounting plate 63 to move forward or backward on the threaded rod 61, and at the same time causes the mounting plate 63 to slide forward or backward in the slide rail 2, so that the bumper support frame 64 connected to the mounting plate 63 can move back and forth, solving the problem of manually moving each one during transportation and increasing the workload of employees. There are two sets of No. 3 pipes 9. The input ends of the two sets of No. 3 pipes 9 are fixed and connected to both ends of No. 2 pipe 8. The front end of the receiving box 12 is fixedly connected to the handle 13. The top of No. 1 pipe 7 is fixedly connected to the bottom of the paint box 14. The top of the support foot 4 is fixedly connected to the bottom of the paint box 14. The operating principle of No. 2 gear 53, No. 3 gear 54, and No. 4 gear 55 is the same as that of planetary gears. The outer wall of the internal gear 56 is fixedly connected to the inner wall of the top of the paint box 14. The internal gear 56 refers to a gear with teeth arranged inside the cylinder, which is usually used in internal meshing gear mechanisms. The internal gear 56 meshes with the external pinion and is mainly used in gear devices such as planetary gears and gear couplings with high reduction rates. The two sides of the mounting plate 63 are slidably connected to the inside of the slide rail 2.
[0033] Working principle: When in use, the motor 51 is turned on, driving the first gear 52 connected to the output end of the motor 51 to rotate. This causes the second gear 53, third gear 54, and fourth gear 55, which mesh with the first gear 52, to rotate inside the internal gear 56 at the top of the paint tank 14. This, in turn, drives the first stirring rod 57, second stirring rod 58, and third stirring rod 59, connected to the second gear 53, third gear 54, and fourth gear 55, to rotate inside the paint tank 14, thus stirring the paint inside and resolving the issue of paint unevenness during application. When the material is left to stand in the material box 14, due to the density difference of each component, solid particles such as pigments and fillers will gradually settle, causing uneven coating on the car bumper. Turning the crank handle 62 clockwise or counterclockwise will rotate the threaded rod 61, causing the mounting plate 63 to move forward or backward on the threaded rod 61. At the same time, the mounting plate 63 will slide forward or backward in the slide rail 2, allowing the bumper support frame 64 connected to the mounting plate 63 to move back and forth, thus solving the problem of manually moving each one during transportation, which increases the workload of employees.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A spraying device for processing of automobile bumpers, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with slide rails (2), the top of the base (1) is provided with a conveying assembly (6), the right side of the base (1) is slidably connected with a receiving box (12), the top of the slide rail (2) is fixedly connected with a support (3), the top of the support (3) is fixedly connected with a paint tank (14), the top of the support (3) is fixedly connected with a supporting leg (4), the top of the paint tank (14) is provided with an inlet (11), the bottom outer wall of the support (3) is fixedly connected with a second pipeline (8), the top of the second pipeline (8) is fixedly connected with a first pipeline (7), the inner walls of the two sides of the support (3) are fixedly connected with third pipelines (9), the top of the support (3) is provided with a paint tank stirring assembly (5), the outer wall of the third pipeline (9) is fixedly connected with a spray head (10). The paint tank stirring assembly (5) comprises a motor (51), the output shaft of the motor (51) is rotatably connected with a first gear (52), the periphery of the first gear (52) is respectively engaged with a second gear (53), a third gear (54) and a fourth gear (55).
2. The spraying device for processing the bumper of an automobile according to claim 1, characterized in that: The paint tank stirring assembly (5) comprises a first stirring rod (57), a second stirring rod (58) and a third stirring rod (59), the top of the first stirring rod (57) is fixedly connected to the bottom of the second gear (53), the top of the second stirring rod (58) is fixedly connected to the bottom of the third gear (54), the top of the third stirring rod (59) is fixedly connected to the bottom of the fourth gear (55), the periphery of the second gear (53), the third gear (54) and the fourth gear (55) is engaged with an internal gear (56).
3. The spraying device for processing the bumper of an automobile according to claim 1, characterized in that: The conveying assembly (6) comprises a threaded rod (61), the outer wall of the threaded rod (61) is threadedly connected with a mounting plate (63), the top of the mounting plate (63) is fixedly connected with a bumper support frame (64), the front end of the threaded rod (61) is fixedly connected with a handle (62).
4. The spraying device for processing the bumper of an automobile according to claim 1, wherein: The third pipeline (9) is provided with two groups, the input ends of the two groups of third pipelines (9) are fixedly and throughly connected to the two ends of the second pipeline (8).
5. The spraying device for processing the bumper of an automobile according to claim 1, characterized in that: The front end of the receiving box (12) is fixedly connected with a handle (13), the top of the first pipeline (7) is fixedly connected to the bottom of the paint tank (14), the top of the supporting leg (4) is fixedly connected to the bottom of the paint tank (14).
6. The spraying device for processing the bumper of an automobile according to claim 2, characterized in that: The outer wall of the internal gear (56) is fixedly connected to the top end inner wall of the paint tank (14).
7. The spraying device for processing the bumper of an automobile according to claim 3, characterized in that: The two sides of the mounting plate (63) are slidably connected to the inside of the slide rail (2).