Automatic paint spraying device for single-color and multi-color buoys
By designing an automatic painting device for single-color and multi-color buoys, and using a sensor and a stepper motor to control the paint gun, the device achieves precise alignment between the buoy and the paint gun and synchronous spraying of multiple paint guns. This solves the problems of slow painting speed, large color difference, and low efficiency in existing technologies, and improves the quality and efficiency of painting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHA ZONGYI BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
In the existing technology, the painting of fishing floats relies on manual or semi-automatic equipment, which has problems such as slow painting speed, large color difference, uneven painting, difficulty in accurately controlling the rotation angle and painting trajectory, low efficiency when switching between multiple colors, and inability to achieve simultaneous multi-color painting of multiple floats.
Design an automatic painting device for single-color and multi-color buoys. The device uses a sensor to count the buoy position and a stepper motor to control the rotation and movement of the paint gun to achieve precise alignment between the buoy and the paint gun. It also employs multi-gun synchronous painting technology to ensure that multi-color painting is carried out simultaneously.
It improved painting efficiency, ensured uniform buoy color and clear markings, reduced the health hazards of paint mist, and enhanced production efficiency, buoy performance, and aesthetics.
Smart Images

Figure CN224208320U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface coating technology, specifically to an automatic painting device for monochrome and multicolor buoys. Background Technology
[0002] With the increasing popularity of fishing, fishing floats, as a key tool for anglers to observe fish activity, are experiencing a continuous increase in market demand. Currently, the painting of fishing floats mostly relies on manual operation or semi-automatic equipment. Manual painting is limited by the operator's skill and physical strength, resulting in slow painting speeds, large batch-to-batch color differences, and difficulty in ensuring uniform color and clear markings. Furthermore, prolonged exposure to paint fumes can pose health risks to workers. While semi-automatic equipment can improve efficiency to some extent, it struggles to precisely control the float's rotation angle and the spray gun's trajectory, leading to issues such as missed areas and drips on the float surface, affecting both performance and aesthetics. In addition, fishing floats often require multiple colors to enhance visibility; traditional equipment requires frequent stops for adjustments when switching between colors, significantly reducing production efficiency and making it impossible to simultaneously paint multiple floats in multiple colors. Utility Model Content
[0003] The purpose of this invention is to provide an automatic painting device for single-color and multi-color buoys to solve the problems mentioned in the background art.
[0004] The technical solution of this utility model is: an automatic painting device for single-color and multi-color buoys, including a frame. Multiple symmetrically arranged hollow shaft chain tracks are fixedly connected to the upper surface of the frame. Multiple symmetrically arranged first motor brackets are fixedly connected to the inner wall of the frame. A first stepper motor is fixedly connected to the inner wall of the first motor bracket located at the upper left. A sprocket is rotatably connected to the inner wall of each of the multiple first motor brackets via a transmission rod. The transmission rod of the sprocket located at the upper left is fixedly connected to the output end of the first stepper motor. The surface of each of the multiple sprockets is fitted with the same hollow shaft chain. The hollow shaft chain is slidably connected to the inner wall of the multiple first motor brackets. A support plate is fixedly connected to the inner wall of the frame. Two symmetrically arranged second motor brackets are fixedly connected to the upper surface of the support plate. A second stepper motor is fixedly connected to the inner wall of each of the two second motor brackets. A roller is fixedly connected to the output end of each second stepper motor.
[0005] Preferably, the upper end of the hollow shaft chain has multiple symmetrically arranged hollow steel tubes. The surfaces of the multiple hollow steel tubes are rotatably connected to the inner wall of the hollow shaft chain. A fixing collet screw is rotatably connected to the inner wall of each of the multiple hollow steel tubes. A base is rotatably connected to the surface of each of the multiple hollow steel tubes. A bearing is fitted onto the surface of the base. A buoy chuck seat is fixedly connected to the upper end of the base. A nut mounting hole is provided at the upper end of the base. A nut is provided on the inner wall of the nut mounting hole. The inner wall of the nut is threadedly connected to the surface of the fixing collet screw. Two annular mounting holes are provided on the surface of the buoy chuck seat. A steel ring is provided on the inner wall of each of the two mounting holes. A first limiting groove is provided on the surface of the base. Two symmetrically arranged second limiting grooves are provided on the surface of the buoy chuck seat. A retaining spring is fitted onto the inner wall of the buoy chuck seat. A chuck core is fixedly connected to the inner wall of the buoy chuck seat. A cleaning hole is provided at the upper end of the base.
[0006] Preferably, a dividing plate is fixedly connected to the surface of the support plate, and two symmetrically arranged third stepper motors are located behind the support plate. The lower ends of the two third stepper motors are fixedly connected to the surface of the support plate, and the upper ends of the two third stepper motors are fixedly connected to slide rails. The output ends of the two third stepper motors are fixedly connected to threaded rods, and sliding blocks are threadedly connected to the surface of the threaded rods. The sidewalls of the sliding blocks are slidably connected to the sidewalls of the slide rails, and a paint gun is fixedly connected to the sidewalls of the sliding blocks.
[0007] Preferably, a square fixing rod is fixedly connected to the side wall of the frame, and a sensing device is fixedly connected to the side wall of the square fixing rod.
[0008] Preferably, a paint mist recovery device is provided on the rear side of the frame, and the paint mist recovery device is located behind the paint spray gun.
[0009] Preferably, a motion control display device is fixedly connected to the side wall of the frame, and the motion control display device is electrically connected to the first stepper motor, the second stepper motor, the third stepper motor and the sensing device respectively through wires.
[0010] Preferably, the roller is disposed against the surface of the adjacent base, and the roller is made of rubber.
[0011] Preferably, the side wall of the frame is fixedly connected with the same number of miniature cylinders as the paint spray guns, and the output end of the miniature cylinders abuts against the surface of the bearing.
[0012] This utility model provides an improved automatic painting device for single-color and multi-color buoys, which has the following improvements and advantages compared with the prior art:
[0013] Firstly, in this invention, when the buoy passes the sensing head of the sensing device, the device counts the rotation pulses of the first stepper motor. Once the count reaches the preset number of pulses required to align the buoy with the spray gun, the first stepper motor stops rotating, causing the hollow shaft chain to stop running. At this time, the spray gun begins to spray the buoy with the first color of paint. After the first color of paint is completed, the buoy continues to move forward. When it aligns with the next spray gun, the next color of paint is sprayed, and so on to achieve multi-color painting.
[0014] Secondly, this invention ensures that the installation interval of the paint spray gun matches the installation interval of the buoy clamp on the hollow shaft chain. Therefore, when the first buoy moves to the position of the left paint spray gun, the second buoy is precisely aligned with the right paint spray gun. This allows the equipment to simultaneously spray the first buoy with the first color paint while spraying the second buoy with the first color paint. This mode also applies to multi-color spraying. As long as there are buoys continuously on the buoy clamp, regardless of the number of colors sprayed, the actual time consumed is only equivalent to the time required to spray one color paint, greatly improving painting efficiency. Attached Figure Description
[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 3 This is a cross-sectional structural diagram of the buoy clamp seat of this utility model;
[0019] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle;
[0020] Figure 5 for Figure 1 Enlarged structural diagram at point B;
[0021] Figure 6 for Figure 2 Enlarged structural diagram at point C;
[0022] Figure 7 for Figure 2 Enlarged structural diagram at point D;
[0023] Figure 8 for Figure 2 Enlarged structural diagram at point E;
[0024] Figure 9 This is a schematic diagram of the disassembled structure of the buoy clamp seat of this utility model;
[0025] Figure 10 for Figure 2 Enlarged structural diagram at point F.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Frame; 2. Hollow shaft chain track; 3. First motor bracket; 4. First stepper motor; 5. Sprocket; 6. Hollow shaft chain; 7. Support plate; 8. Second motor bracket; 9. First stepper motor; 10. Roller; 11. Hollow steel pipe; 12. Fixing chuck screw; 13. Bearing; 14. Base; 15. Buoy chuck seat; 16. Nut mounting hole; 17. Nut; 18. Mounting hole; 19. Steel ring; 20. Snap ring; 21. Chuck core; 22. Cleaning hole; 23. Dividing plate; 24. Third stepper motor; 25. Slide rail plate; 26. Threaded rod; 27. Sliding block; 28. Paint gun; 29. Square fixing rod; 30. Sensing device; 31. Paint mist recovery device; 32. Motion control display device; 33. First limit groove; 34. Second limit groove; 35. Miniature cylinder. Detailed Implementation
[0028] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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 protection scope of the present invention.
[0029] This utility model provides an improved automatic painting device for single-color and multi-color buoys. The technical solution of this utility model is as follows:
[0030] like Figure 1 - Figure 10As shown, an automatic painting device for single-color and multi-color buoys includes a frame 1. Multiple symmetrically arranged hollow shaft chain tracks 2 are fixedly connected to the upper surface of the frame 1. Multiple symmetrically arranged first motor brackets 3 are fixedly connected to the inner wall of the frame 1. A first stepper motor 4 is fixedly connected to the inner wall of the first motor bracket 3 located at the upper left. Each of the multiple first motor brackets 3 has a sprocket 5 rotatably connected to its inner wall via a transmission rod. The transmission rod of the sprocket 5 located at the upper left is fixedly connected to the output end of the first stepper motor. A hollow shaft chain 6 is fitted onto the surface of each of the multiple sprockets 5. The hollow shaft chain 6 is slidably connected to the inner wall of the multiple first motor brackets 3. A support plate 7 is fixedly connected to the inner wall of the frame 1. Two symmetrically arranged second motor brackets 8 are fixedly connected to the upper surface of the support plate 7. A second stepper motor 9 is fixedly connected to the inner wall of each of the two second motor brackets 8. A roller 10 is fixedly connected to the output end of the second stepper motor 9.
[0031] Furthermore, the upper end of the hollow shaft chain 6 has multiple symmetrically arranged hollow steel tubes 11. The surfaces of the multiple hollow steel tubes 11 are rotatably connected to the inner wall of the hollow shaft chain 6. Each of the multiple hollow steel tubes 11 has a fixing collet screw 12 rotatably connected to its inner wall. A base 14 is rotatably connected to the surfaces of the multiple hollow steel tubes 11. A bearing 13 is fitted onto the surface of the base 14. A float chuck seat 15 is fixedly connected to the upper end of the base 14. A nut mounting hole 16 is provided at the upper end of the base 14. A nut 17 is provided on the inner wall of the nut mounting hole 16. The inner wall of the nut 17 is threadedly connected to the surface of the fixing collet screw 12. The surface of the float chuck seat 15... Two annular mounting holes 18 are provided, and steel rings 19 are provided on the inner walls of both mounting holes 18. A first limiting groove 33 is provided on the surface of the base 14, and two symmetrically arranged second limiting grooves 34 are provided on the surface of the buoy clamp seat 15. A retaining spring 20 is fitted on the inner walls of the first limiting groove 33 and the two second limiting grooves 34. A clamp core 21 is fixedly connected to the inner wall of the buoy clamp seat 15. A cleaning hole 22 is provided at the upper end of the base 14. Multiple hollow steel pipes 11 are symmetrically distributed at the upper end of the hollow shaft chain 6, and their lower ends pass through the hollow shaft chain 6 and extend to the bottom to connect to the fixing clamp screw 12, forming a stable support structure. The base 14, which is rotatably connected to the surface of the hollow steel pipes 11, can rotate flexibly with the help of bearings 13. With the fastening of nuts 17 in the nut mounting holes 16, the installation height can be adjusted according to different buoy sizes. The chuck core 21, locked by the snap ring 20 and the steel ring 19 on the buoy chuck holder 15, provides a stable and reliable clamping force, ensuring that the buoy will not shift during the spraying process. The cleaning hole 22 on the base 14 can promptly discharge impurities generated during installation or spraying, preventing them from affecting the buoy installation accuracy and spraying quality.
[0032] Furthermore, a dividing plate 23 is fixedly connected to the surface of the support plate 7. Two symmetrically arranged third stepper motors 24 are located behind the support plate 7. The lower ends of both third stepper motors 24 are fixedly connected to the surface of the support plate 7, and the upper ends of both third stepper motors 24 are fixedly connected to slide rails 25. Threaded rods 26 are fixedly connected to the output ends of both third stepper motors 24. Sliding blocks 27 are threadedly connected to the surface of the threaded rods 26. The sidewalls of the sliding blocks 27 are slidably connected to the sidewalls of the slide rails 25. A paint gun 28 is fixedly connected to the sidewalls of the sliding blocks 27. The dividing plate 23 fixed on the support plate 7 serves to separate spaces, making the layout of each component more rational. The two symmetrically arranged third stepper motors 24 have their lower ends fixed to the surface of the support plate 7 and their upper ends connected to the slide rails 25. The threaded rods 26 at the output ends of the third stepper motors 24 are threadedly connected to the sliding blocks 27, while the sidewalls of the sliding blocks 27 slide against the slide rails 25, forming a high-precision linear transmission mechanism. When it is necessary to paint buoys of different sizes or shapes, the third stepper motor 24 can precisely control the movement of the sliding block 27, thereby achieving precise positioning of the paint gun 28 and meeting diverse painting needs.
[0033] Furthermore, a square fixing rod 29 is fixedly connected to the side wall of the frame 1, and a sensing device 30 is fixedly connected to the side wall of the square fixing rod 29. The sensing device 30 installed on the square fixing rod 29 fixed to the side wall of the frame 1 adopts a high-precision sensor, which can monitor the position of the buoy in real time and with high sensitivity. When the buoy passes the sensing device 30 with the hollow shaft chain, the sensing device will accurately count the rotation pulses of the first stepper motor 4 and quickly transmit the counting signal to the motion control display device 32.
[0034] Furthermore, a paint mist recovery device 31 is installed at the rear of the frame 1. Located behind the paint spray gun 28, the paint mist recovery device 31 employs highly efficient filtration and adsorption technology. During the painting process, the generated paint mist particles are collected promptly and, after multiple filtrations and treatments, effectively reduce the harm of paint mist to the working environment and operators, while also meeting environmental protection requirements and preventing paint mist pollution of the surrounding environment.
[0035] Furthermore, a motion control display device 32 is fixedly connected to the side wall of the frame 1. The motion control display device 32 is electrically connected to the first stepper motor 4, the second stepper motor 9, the third stepper motor 24 and the sensing device 30 through wires. With the motion control display device 32 fixed to the side wall of the frame 1, the operator can preset various painting programs such as the distance parameters from the sensing head to the paint gun 28, the color of the paint, and the thickness of the paint.
[0036] Furthermore, the roller 10 is positioned abutting against the surface of the adjacent base 14. The roller 10 is made of rubber and is driven by the second stepper motor 9. This material has good elasticity and friction. During the painting process, the second stepper motor 9 can drive the roller 10 to rotate, causing the base 14 and the buoy fixed thereon to rotate synchronously through friction.
[0037] Furthermore, the side wall of the frame 1 is fixedly connected with the same number of miniature cylinders 35 as the paint spray guns 28. The output end of the miniature cylinder 35 abuts against the surface of the bearing 13. When the buoy moves to the paint spray gun 28, the miniature cylinder 35 on the frame 1 is activated. At this time, the output end of the miniature cylinder 35 will press against the surface of the bearing 13, causing the surface of the buoy chuck seat 15 to abut against the surface of the roller 10, increasing the friction between the roller 10 and the buoy chuck seat 15, making the buoy seat rotate more reliably. In addition, it also causes the hollow shaft chain 6 to abut against the inner wall of the hollow shaft chain track 2, avoiding shaking during the rotation of the buoy.
[0038] Working principle:
[0039] The first stepper motor 4 is fixed to the frame 1 via the first motor bracket 3, and the drive sprocket 5 drives the hollow shaft chain 6 to run on the hollow shaft chain track 2. The buoy is fixed by the chuck core 21 on the buoy chuck seat 15;
[0040] When the buoy travels along the hollow shaft chain 6 past the sensing device 30, the sensing device 30 begins counting the rotation pulses of the first stepper motor 4. The counting signal is transmitted to the motion control display device 32, which can be preset with parameters for the distance between the sensing head and the paint gun 28. When the count value reaches the set value, it indicates that the buoy has aligned with the paint gun 28, and the motion control display device 32 issues a command to stop the first stepper motor 4, thus pausing the operation of the hollow shaft chain 6.
[0041] The paint gun 28 is mounted on the sliding block 27, which is precisely positioned by a third stepper motor 24 via a transmission mechanism consisting of a slide rail 25 and a threaded rod 26. Once the buoy is positioned, the paint gun 28 performs a painting operation on the buoy according to a preset program.
[0042] During multi-color spray painting, since the installation interval of the paint spray guns 28 is equal to the installation interval of the buoy clamps on the hollow shaft chain 6, when the first buoy aligns with the left paint spray gun 28, subsequent buoys align with the other paint spray guns 28 in sequence. For example, the second buoy aligns with the right paint spray gun 28 simultaneously, achieving simultaneous spraying of different colors on multiple buoys;
[0043] When painting a single color, the equipment uses a batch spraying mode. When a buoy is detected on the buoy clamp, the hollow shaft chain 6 moves to the position of the right spray gun 28 and stops. At this time, multiple buoys simultaneously align with each spray gun 28, and all spray guns start simultaneously to complete the spraying of multiple buoys. After completion, the hollow shaft chain 6 continues to move until the next batch of unpainted buoys arrives, and the above process is repeated.
[0044] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An automatic painting device for single-color and multi-color buoys, comprising a frame (1), characterized in that: The upper surface of the frame (1) is fixedly connected with a plurality of symmetrically arranged hollow shaft chain tracks (2). The inner wall of the frame (1) is fixedly connected with a plurality of symmetrically arranged first motor brackets (3). The inner wall of the first motor bracket (3) located at the upper left is fixedly connected with a first stepper motor (4). The inner walls of the plurality of first motor brackets (3) are rotatably connected to sprockets (5) through transmission rods. The transmission rod of the sprocket (5) located at the upper left is fixedly connected to the output end of the first stepper motor. The surface of the plurality of sprockets (5) is fitted with the same hollow shaft chain (6). The hollow shaft chain (6) is slidably connected to the inner wall of the plurality of first motor brackets (3). The inner wall of the frame (1) is fixedly connected with a support plate (7). The upper surface of the support plate (7) is fixedly connected with two symmetrically arranged second motor brackets (8). The inner walls of the two second motor brackets (8) are fixedly connected with second stepper motors (9). The output end of the second stepper motors (9) is fixedly connected with rollers (10).
2. The device for automatic painting of single-color and multi-color buoys according to claim 1, characterized in that: The upper end of the hollow shaft chain (6) has a plurality of symmetrically arranged hollow steel tubes (11). The surfaces of the plurality of hollow steel tubes (11) are rotatably connected to the inner wall of the hollow shaft chain (6). The inner walls of the plurality of hollow steel tubes (11) are rotatably connected to a fixing collet screw (12). The surfaces of the plurality of hollow steel tubes (11) are rotatably connected to a base (14). The surface of the base (14) is fitted with a bearing (13). The upper end of the base (14) is fixedly connected to a float collet seat (15). The upper end of the base (14) is provided with a nut mounting hole (16). The inner wall of the nut mounting hole (16) is provided with a nut (17). The inner wall of the buoy chuck seat (15) is threadedly connected to the surface of the fixed chuck screw (12). The surface of the buoy chuck seat (15) has two annular mounting holes (18). The inner walls of the two mounting holes (18) are provided with steel rings (19). The surface of the base (14) has a first limiting groove (33). The surface of the buoy chuck seat (15) has two symmetrically arranged second limiting grooves (34). The inner walls of the first limiting groove (33) and the two second limiting grooves (34) are all fitted with snap rings (20). The inner wall of the buoy chuck seat (15) is fixedly connected with a chuck core (21). The upper end of the base (14) has a cleaning hole (22).
3. The device for automatic painting of single-color and multi-color buoys according to claim 1, characterized in that: A dividing plate (23) is fixedly connected to the surface of the support plate (7). Two third stepper motors (24) are symmetrically arranged behind the support plate (7). The lower ends of the two third stepper motors (24) are fixedly connected to the surface of the support plate (7). The upper ends of the two third stepper motors (24) are fixedly connected to slide rails (25). The output ends of the two third stepper motors (24) are fixedly connected to threaded rods (26). A sliding block (27) is threadedly connected to the surface of the threaded rod (26). The side wall of the sliding block (27) is slidably connected to the side wall of the slide rail (25). A paint gun (28) is fixedly connected to the side wall of the sliding block (27).
4. The device for automatic painting of single-color and multi-color buoys according to claim 1, characterized in that: A square fixing rod (29) is fixedly connected to the side wall of the frame (1), and a sensing device (30) is fixedly connected to the side wall of the square fixing rod (29).
5. The device for automatic painting of single-color and multi-color buoys according to claim 1, characterized in that: A paint mist recovery device (31) is provided on the rear side of the frame (1), and the paint mist recovery device (31) is located behind the paint spray gun (28).
6. The device for automatic painting of single-color and multi-color buoys according to claim 1, characterized in that: The side wall of the frame (1) is fixedly connected to a motion control display device (32), which is electrically connected to the first stepper motor (4), the second stepper motor (9), the third stepper motor (24) and the sensing device (30) through wires.
7. The device for automatic painting of monochrome and multicolor buoys according to claim 1, characterized in that: The roller (10) is disposed against the surface of the adjacent base (14), and the roller (10) is made of rubber.
8. The device for automatic painting of single-color and multi-color buoys according to claim 1, characterized in that: The side wall of the frame (1) is fixedly connected with the same number of miniature cylinders (35) as the paint spray gun (28), and the output end of the miniature cylinder (35) abuts against the surface of the bearing (13).