A quick color changing device for multi-color wheel hub coating
The fixed mechanism and cylinder-driven telescopic column system solve the problem of cumbersome manual operation during color change in multi-color wheel hub painting devices, realize the rapid disassembly and assembly of spray pipes and pigment flow, and improve production efficiency and spraying consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SHENLIKA ALUMINUM IND DEV
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-21
AI Technical Summary
Existing multi-color wheel hub painting equipment requires manual disassembly and cleaning of the spraying pipeline when changing colors. This operation is cumbersome and time-consuming, making it difficult to meet the needs of rapid production lines. Furthermore, it is difficult to guarantee the consistency of manual operation.
The system employs a fixed mechanism and a cylinder-driven telescopic column system. The clamping structure of the snap-on column and the fixed plate enables the quick assembly and disassembly of the spraying tube. The cylinder-driven piston rod and telescopic column adjust the clamping force, enabling the quick replacement of the spraying tube and the flow of pigment, reducing manual operation.
It enables rapid replacement of spray nozzles and pigment flow, improves color change efficiency, reduces manual operation time, ensures stable and consistent spraying pressure, and reduces production costs.
Smart Images

Figure CN224525063U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wheel hub painting technology, specifically a quick color-changing device for multi-color wheel hub painting. Background Technology
[0002] In the field of wheel coating, the demand for multi-color wheel production is growing. Traditional coating processes face many technical bottlenecks when changing colors. However, existing equipment usually changes colors by manually disassembling and cleaning the spraying pipes. The manual operation process is cumbersome, requiring multiple disassembly and reassembly of the pipes and cleaning of residual pigments, which is time-consuming and cannot meet the needs of rapid production on the assembly line. For example, CN221016818U discloses a rapid color-changing spraying device, including: a support plate with a spray gun mounted on it; a moving mechanism on the top of the support plate, and a support mechanism and multiple pigment boxes on the top of the moving mechanism, the moving mechanism being used to move the support mechanism and multiple pigment boxes on the support plate; and a connecting mechanism between the spray gun and the pigment boxes, the connecting mechanism being used to spray pigment from the inner cavity of the pigment boxes. However, there are shortcomings: changing colors by manually disassembling and cleaning the spraying pipes is a cumbersome manual operation process that requires multiple disassembly and reassembly of the pipes and cleaning of residual pigments, which takes a long time and is difficult to meet the needs of rapid production on the assembly line. This process not only relies on a large amount of manpower, increasing production costs, but also makes it difficult to ensure the consistency of manual operation. It is easy to cause problems such as improper pipe installation due to operational negligence, which may lead to material leakage or unstable pressure during the spraying process. Utility Model Content
[0003] The purpose of this utility model is to provide a quick color-changing device for multi-color wheel hub painting, so as to solve the problem mentioned in the background art that the existing devices usually change colors by manually disassembling and cleaning the spraying pipeline. The manual operation process is cumbersome, requires multiple disassembly and assembly of pipelines and cleaning of residual pigments, which is time-consuming and difficult to meet the needs of rapid production line.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a quick color-changing device for multi-color wheel hub painting, comprising a base plate, a fixing mechanism fixedly connected to one end of the base plate, the fixing mechanism including a fixing post, the fixing post being fixedly connected to one end of the base plate, a base being fixedly connected to one end of the fixing post, a stud being threaded into the inner cavity of the base, a connecting post being fixedly connected to one end of the stud, a snap-fit post being fixedly connected to one end of the connecting post, and a fixing plate being fixedly connected to one end of the base. Several fixing plates are symmetrically arranged around the circumference, and the several symmetrically arranged fixing plates are tightly attached to the outer surface of the snap-fit posts.
[0005] Furthermore, a second fixing column is fixedly connected to the outer side of the base, a cylinder is fixedly connected to one end of the second fixing column, a piston rod is fixedly connected to one end of the cylinder, and a telescopic column is slidably connected to the inner cavity of the piston rod. Two sets of telescopic columns are symmetrically arranged.
[0006] Furthermore, one end of the telescopic column is fixedly connected to an adjusting column, which is closely attached to the outer side of several symmetrically arranged fixed plates.
[0007] Furthermore, the inner cavity of the buckle post is provided with a discharge groove, which extends through the inner cavity of the buckle post, connecting post, screw post, base and base and fixing post one.
[0008] Furthermore, the inner cavity of the buckle post is provided with a hexagonal slot, which is used to connect an external pipe, and a spray pipe is slidably connected to the inner cavity of the hexagonal slot.
[0009] Furthermore, a pigment assembly is fixedly connected to the bottom end of the base plate. The pigment assembly includes a pigment box, which is fixedly connected to one end of the base plate. A conveying pipe is fixedly connected to one end of the pigment box, and the end of the conveying pipe away from the pigment box extends into the inner cavity of the discharge trough.
[0010] This utility model has the following beneficial effects: I. This utility model is equipped with a snap-on column. The fixing column fixes the base to the base plate. The stud is threaded to the base and can drive the connecting column and the snap-on column to move axially. The outer surface of the snap-on column is tightly connected to the circumferentially symmetrical fixing plate. The conical structure of the snap-on column makes the fixing plate open or close, thereby clamping or releasing the spray tube inserted into the hexagonal slot of the snap-on column. During this process, the fixing mechanism can quickly adjust the clamping force of the fixing plate through the cylinder, without the need for manual operation, thus improving the color change efficiency. Second, based on the above-mentioned beneficial effects, an adjusting column is also provided. The fixing column on the outside of the base is connected to a cylinder. The cylinder drives the piston rod and the symmetrical telescopic column to move the adjusting column. The adjusting column presses against the outside of the fixing plate, accurately controlling the deformation of the fixing plate to change the clamping force, so as to realize the quick assembly and disassembly of the spraying pipe. At the same time, the discharge groove passes through the inner cavity of the buckle column, connecting column and other components to form a pigment flow channel, which works with the spraying pipe to complete the coating operation. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the connection of the fixing column of the fixing mechanism of this utility model; Figure 3 This is a schematic diagram of the connection of the fixing column two of the fixing mechanism of this utility model; Figure 4 This is a schematic diagram of the connection of the discharge trough of the fixing mechanism of this utility model.
[0013] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base plate; 2. Fixing mechanism; 21. Fixing column one; 22. Base; 23. Stud; 24. Connecting column; 25. Snap-on column; 26. Fixing plate; 27. Fixing column two; 28. Cylinder; 29. Piston rod; 210. Telescopic column; 211. Adjusting column; 212. Discharge chute; 213. Hexagonal slot; 3. Pigment assembly; 31. Pigment box; 32. Material conveying pipe; 4. Spraying pipe. Detailed Implementation
[0014] 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.
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0016] Please see Figure 1-4 As shown, this utility model is a quick color-changing device for multi-color wheel hub painting, including a base plate 1. A fixing mechanism 2 is fixedly connected to one end of the base plate 1. The fixing mechanism 2 includes a fixing post 21, which is fixedly connected to one end of the base plate 1. A base 22 is fixedly connected to one end of the fixing post 21. A stud 23 is threadedly connected to the inner cavity of the base 22. A connecting post 24 is fixedly connected to one end of the stud 23. A snap-fit post 25 is fixedly connected to one end of the connecting post 24. A fixing plate 26 is fixedly connected to one end of the base 22. Several fixing plates 26 are symmetrically arranged around the circumference. The several symmetrically arranged fixing plates 26 are tightly connected to the outer surface of the snap-fit post 25. For example, the spray tube 4 is inserted into the hexagonal slot 213 of the snap-fit post 25 and positioned by the hexagonal structure. Then, the stud 23 is rotated to drive the snap-fit post 25 to move axially within the base 22, so that the fixing plate 26 is opened or tightened by the conical structure of the snap-fit post 25, thereby clamping or releasing the spray tube 4.
[0017] A fixing post 27 is fixedly connected to the outer side of the base 22. A cylinder 28 is fixedly connected to one end of the fixing post 27. A piston rod 29 is fixedly connected to one end of the cylinder 28. A telescopic post 210 is slidably connected to the inner cavity of the piston rod 29. Two sets of telescopic posts 210 are symmetrically arranged. Specifically, cylinder 28 is a thin cylinder 28 with a compact structure and small space occupation. The cylinder diameter is ø100, the pressure is 0.7MPa, and the piston speed is 500mm / s. When the device needs to adjust the clamping force of the fixing plate 26, the air source inputs 0.7MPa compressed air into cylinder 28 to push the piston rod 29 to move axially. For example, cylinder 28 drives telescopic column 210 to move, and telescopic column 210 drives adjusting column 211 to move inward or outward. Adjusting column 211 presses fixed plate 26 to deform it, thereby changing the clamping force of fixed plate 26 on buckle column 25. The clamping force of fixed plate 26 can be quickly adjusted without manual operation, improving color changing efficiency. In addition, the two sets of symmetrical telescopic columns 210 ensure that the adjustment force is evenly distributed, avoiding deformation of fixed plate 26 on one side and extending the service life of the device.
[0018] One end of the telescopic column 210 is fixedly connected to an adjusting column 211, which is closely attached to the outside of several symmetrically arranged fixed plates 26; For example, when the telescopic column 210 drives the adjusting column 211 to move closer to the latching column 25, the adjusting column 211 presses against the outer side of the fixing plate 26, causing the fixing plate 26 to retract towards the center and clamp the latching column 25. Conversely, when the adjusting column 211 moves in the opposite direction, the fixing plate 26 resets under its own elasticity and releases the latching column 25.
[0019] The inner cavity of the snap-on post 25 is provided with a discharge groove 212, which passes through the inner cavity of the snap-on post 25, the connecting post 24, the stud 23, the base 22 and the fixing post 21. For example, the pigment enters the discharge trough 212 from the pigment box 31 through the feed pipe 32, passes through the stud 23 and the connecting post 24 to the snap-fit post 25, and is finally sprayed out from the spray pipe 4. The through-type structure ensures that there are no dead corners in the pigment flow path. When changing colors, you only need to switch the connection of the spray pipe 4, and the residual pigment can be quickly discharged through the discharge trough 212.
[0020] The inner cavity of the snap-on post 25 is provided with a hexagonal slot 213, which is used to connect an external pipe. The inner cavity of the hexagonal slot 213 is slidably connected to a spray pipe 4. Specifically, when the spray pipe 4 sprays pigment, the pigment in the pigment box 31 enters the discharge trough 212 through the feed pipe 32, passes through the inner cavity of the snap-fit post 25, connecting post 24, stud 23, base 22 and fixing post 21, and flows into the spray pipe 4. The spray pipe 4 is connected and positioned to the snap-fit post 25 through the hexagonal slot 213. Under pressure, the pigment is sprayed out from the nozzle of the spray pipe 4 to achieve the coating of the wheel hub. The through-type discharge trough 212 ensures that the pigment flows continuously and there are no dead corners in the path, ensuring the stability and uniformity of the spraying pressure. For example, after the hexagonal end of the spray tube 4 is inserted into the hexagonal slot 213 of the snap-fit post 25, its circumferential freedom is restricted, and it can only move axially. When changing colors, it is only necessary to loosen the fixing plate 26.
[0021] A pigment assembly 3 is fixedly connected to the bottom end of the base plate 1. The pigment assembly 3 includes a pigment box 31, which is fixedly connected to one end of the base plate 1. A conveying pipe 32 is fixedly connected to one end of the pigment box 31, and the end of the conveying pipe 32 away from the pigment box 31 extends into the inner cavity of the discharge trough 212. For example, under pressure, the pigment flows from the pigment box 31 through the feed pipe 32 into the discharge trough 212, and after connecting with the spray pipe 4, it is sprayed out through the nozzle of the spray pipe 4. When changing colors, the feed valve of the current pigment box 31 is closed, and the pigment box 31 of the target color is switched, thus realizing the pigment switching.
[0022] Working principle: The base 22 is fixed to the base plate 1 by the fixing post 21. The stud 23 is threaded to the base 22, which can drive the connecting post 24 and the snap post 25 to move axially. The outer surface of the snap post 25 is tightly connected to the circumferentially symmetrical fixing plate 26. The conical structure of the snap post 25 makes the fixing plate 26 open or close, thereby clamping or releasing the spray tube 4 inserted into the hexagonal slot 213 of the snap post 25. The fixing post 27 on the outside of the base 22 is connected to the cylinder 28. The cylinder 28 drives the piston rod 29 and the symmetrical telescopic post 210 to drive the adjusting post 211 to move. The adjusting post 211 presses the outside of the fixing plate 26, precisely controlling the deformation of the fixing plate 26 to change the clamping force, realizing the quick installation and removal of the spray tube 4. At the same time, the discharge groove 212 penetrates the inner cavity of the snap post 25, connecting post 24 and other components to form a pigment flow channel, which works with the spray tube 4 to complete the coating operation.
[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A quick color-changing device for multi-color wheel hub painting, characterized in that, The base includes a base plate (1), one end of which is fixedly connected to a fixing mechanism (2). The fixing mechanism (2) includes a fixing post (21), which is fixedly connected to one end of the base plate (1). One end of the fixing post (21) is fixedly connected to a base (22). The inner cavity of the base (22) is threadedly connected to a stud (23). One end of the stud (23) is fixedly connected to a connecting post (24). One end of the connecting post (24) is fixedly connected to a snap-fit post (25). One end of the base (22) is fixedly connected to a fixing plate (26). Several fixing plates (26) are symmetrically arranged around the circumference. Several symmetrically arranged fixing plates (26) are closely connected to the outer surface of the snap-fit post (25).
2. The quick color-changing device for multi-color wheel hub painting according to claim 1, characterized in that: The outer side of the base (22) is fixedly connected to a second fixed column (27), one end of the second fixed column (27) is fixedly connected to a cylinder (28), one end of the cylinder (28) is fixedly connected to a piston rod (29), and the inner cavity of the piston rod (29) is slidably connected to a telescopic column (210), and two sets of telescopic columns (210) are symmetrically arranged.
3. The quick color-changing device for multi-color wheel hub painting according to claim 2, characterized in that: One end of the telescopic column (210) is fixedly connected to an adjusting column (211), and the adjusting column (211) is closely connected to the outside of several symmetrically arranged fixing plates (26).
4. The quick color-changing device for multi-color wheel hub painting according to claim 1, characterized in that: The inner cavity of the buckle post (25) is provided with a discharge groove (212), which passes through the inner cavity of the buckle post (25), the connecting post (24), the stud (23), the base (22), the base (22), and the fixing post (21).
5. The quick color-changing device for multi-color wheel hub painting according to claim 4, characterized in that: The inner cavity of the buckle post (25) is provided with a hexagonal slot (213), which is used to connect an external pipe. The inner cavity of the hexagonal slot (213) is slidably connected to a spray pipe (4).
6. The quick color-changing device for multi-color wheel hub painting according to claim 1, characterized in that: The bottom end of the base plate (1) is fixedly connected to a pigment assembly (3). The pigment assembly (3) includes a pigment box (31). The pigment box (31) is fixedly connected to one end of the base plate (1). One end of the pigment box (31) is fixedly connected to a conveying pipe (32). The end of the conveying pipe (32) away from the pigment box (31) extends into the inner cavity of the discharge trough (212).