A spraying device for producing a bicycle frame
Patent Information
- Application Number
- CN202521433291.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-07-09
AI Technical Summary
部分设备采用固定喷枪阵列对自行车架进行喷涂，由于喷枪角度无法灵活调整，难以适应不同型号、不同形状车架的喷涂需求，导致涂料浪费严重，生产成本居高不下，此外，多数自动化设备缺乏高效的涂料回收系统，未附着的涂料颗粒直接排放或简单收集，不仅造成资源浪费，还增加了后续处理成本
[0017]与现有技术相比，本实用新型提供了一种用于生产自行车架的喷涂装置，具备以下有益效果：
Smart Images
Figure CN224641425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bicycle frame manufacturing technology, specifically a spraying device for producing bicycle frames. Background Technology
[0002] As we all know, the current bicycle industry is booming, and consumers are placing higher demands on the appearance quality and protective performance of bicycle frames. The painting process, as a key factor determining the surface quality of the frame, directly impacts the product's market competitiveness. Currently, bicycle frame painting mostly employs traditional manual painting or simple automated equipment, but these technologies have revealed numerous problems in actual production.
[0003] Traditional manual spraying relies on workers' experience. The distance and angle between the spray gun and the vehicle frame, as well as the spraying pressure, are all controlled manually. This not only results in high labor intensity and low production efficiency, but also makes it difficult to ensure the uniformity and consistency of the coating. In addition, during the manual spraying process, operators are exposed to the paint environment for a long time, which threatens their health. At the same time, unattached paint particles are dispersed in the air, causing serious environmental pollution.
[0004] While existing automated spraying equipment can improve production efficiency to some extent, it still has significant limitations. Some equipment uses fixed spray gun arrays to spray bicycle frames. Because the spray gun angle cannot be flexibly adjusted, it is difficult to adapt to the spraying needs of different models and shapes of bicycle frames, resulting in serious paint waste and high production costs. In addition, most automated equipment lacks an efficient paint recovery system, and unattached paint particles are directly discharged or simply collected, which not only wastes resources but also increases subsequent processing costs. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the shortcomings of the existing technology, this utility model provides a spraying device for producing bicycle frames.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for producing bicycle frames, comprising a processing plate, a storage box on the bottom wall of the processing plate, a protective box on the upper side wall of the processing plate, openings on both side walls of the protective box, a moving track assembly inside the protective box, an electric rotating column at the lower end of the moving track, a hook at the lower end of the electric rotating column, an adjusting assembly on one side wall of the protective box, a spraying device on the adjusting assembly, the spraying device being connected to the storage box, multiple drying fans on the other side wall of the protective box, and a filter material at the center of the processing plate.
[0009] To precisely control the movement trajectory of the bicycle frame, the present invention includes the following improvements: the moving track assembly includes a rotating slide and a magnetic block, the rotating slide is connected to the protective box, the magnetic block is evenly distributed on the rotating slide and is electromagnetically slidably connected to it, and the electric rotating column is located at the lower end of the magnetic block.
[0010] To enable the spraying device to move up and down and flexibly adjust the spraying angle, this utility model improves upon the following: the adjustment assembly includes a fixed box, a threaded rod, a lifting block, a motor, a support frame, and an electric universal joint. The fixed box is connected to the protective box, the threaded rod passes through the fixed box, the lifting block is inside the fixed box and fits against it and is slidably connected, the threaded rod passes through the lifting block and is threadedly connected to it, the motor is at the upper end of the fixed box, the upper end of the threaded rod is connected to the output end of the motor, the support frame is at the front end of the lifting block, the electric universal joint is symmetrically arranged at both ends of the upper side of the support frame, and the spraying device is located at the upper end of the electric universal joint.
[0011] To ensure stable delivery of various coatings, this utility model improves upon the following: the spraying device includes a pump, a nozzle, and a connecting pipe. One end of the connecting pipe is connected to the input end of the pump, and the other end passes through the lower end of the side wall of the storage tank. The nozzle is connected to the output end of the pump, and the pump is connected to the upper end of the electric universal joint. The pump is a diaphragm pump.
[0012] To reduce the adhesion and accumulation of coating on the inner wall of the protective box, the present invention is improved by providing an anti-splash coating on the inner wall of the protective box, the anti-splash coating being made of polytetrafluoroethylene material.
[0013] In order to regularly discharge deposited paint particles and impurities, the present invention is improved by providing a discharge port at the bottom of the protective box and installing a sealing valve at the discharge port.
[0014] In order to automatically retrieve the painting parameters according to the chassis model, the present invention is improved as follows: the device includes a remote PLC control system, which is electrically connected to the moving track assembly, the adjustment assembly, the painting device and the drying fan respectively.
[0015] In order to enable the recycling and reuse of coating particles, the present invention has the following improvements: the filter material is a multi-layer composite structure, including an upper stainless steel filter screen, a middle activated carbon adsorption layer and a lower polyester fiber filter cotton.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides a spraying device for producing bicycle frames, which has the following beneficial effects: This spraying device for producing bicycle frames is equipped with a moving track assembly. The electromagnetically sliding magnetic block drives the electric rotating column to move along the rotating track. At the same time, the electric rotating column drives the bicycle frame on the hook to rotate 360°, so that complex parts such as the T-shaped pipes and irregular curved surfaces of the frame can be exposed within the spraying range, avoiding the dead angle problem of traditional fixed spraying and ensuring a consistent coating thickness.
[0018] Equipped with an adjustment component, the motor drives the threaded rod to control the lifting block to move up and down. Combined with the multi-angle rotation of the electric universal joint, the spray head can automatically adjust the spray angle according to the diameter and curvature of the frame tubes. For example, when spraying the connection between the frame upright tube and the horizontal tube, the electric universal joint can drive the spray head to tilt to a specific angle to ensure that the coating is evenly covered at the corner and avoid drips or missed sprays.
[0019] Equipped with a spraying device, the device uses a diaphragm pump to extract paint from the storage tank. It is highly corrosion-resistant and has a stable flow rate, making it suitable for different types of paints, such as solvent-based and water-based paints. Combined with a multi-layer composite filter material (stainless steel filter screen + activated carbon + polyester fiber cotton) in the center of the processing board, it can intercept paint particles and volatile organic compounds in stages. Unattached paint particles fall with the airflow and can be recycled and reused after being filtered by the filter screen, which reduces paint loss and environmental pollution. Attached Figure Description
[0020] Figure 1 This is a first-view schematic diagram of the structure of this utility model; Figure 2 This is a second-view schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the internal cross-section of the structural protective box of this utility model; Figure 4 This is a schematic diagram of the internal cross-section of the structural fixing box of this utility model.
[0021] In the diagram: 1. Processing plate; 2. Protective box; 3. Storage box; 4. Connecting pipe; 5. Drying fan; 6. Electric rotating column; 7. Hook; 8. Rotating slide; 9. Magnetic block; 10. Fixing box; 11. Motor; 12. Nozzle; 13. Pump; 14. Electric universal joint; 15. Threaded rod; 16. Lifting block; 17. Support frame. Detailed Implementation
[0022] 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.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] Please see Figure 1-4A spraying device for producing bicycle frames includes a processing plate 1, a storage box 3 on the bottom wall of the processing plate 1, a protective box 2 on the upper side wall of the processing plate 1, openings on both side walls of the protective box 2, a moving track assembly inside the protective box 2, an electric rotating column 6 at the lower end of the moving track, a hook 7 at the lower end of the electric rotating column 6, an adjusting assembly on one side wall of the protective box 2, a spraying device on the adjusting assembly, the spraying device being connected to the storage box 3, and multiple drying fans 5 on the other side wall of the protective box 2. The center of the processing plate 1 is made of filter material. The moving track assembly includes a rotating slide 8 and magnetic blocks 9. The rotating slide 8 is connected to the protective box 2, and the magnetic blocks 9 are evenly distributed on the rotating slide 8 and electromagnetically slidably connected to it. The electric rotating column 6 is located at the lower end of the magnetic blocks 9. The spraying device includes a pump 13, a spray nozzle 12, and a connecting pipe 4. One end of the connecting pipe 4 is connected to... The pump 13 is connected at its input end and at its other end through the lower end of the side wall of the storage tank 3. The nozzle 12 is connected to the output end of the pump 13. The pump 13 is connected to the upper end of the electric universal joint 14. The pump 13 is a diaphragm pump. The adjustment assembly includes a fixed box 10, a threaded rod 15, a lifting block 16, a motor 11, a support frame 17, and an electric universal joint 14. The fixed box 10 is connected to the protective box 2. The threaded rod 15 passes through the fixed box 10. The lifting block 16 is inside the fixed box 10 and is fitted and slidably connected to it. The threaded rod 15 passes through the lifting block 16 and is threadedly connected to it. The motor 11 is at the upper end of the fixed box 10. The upper end of the threaded rod 15 is connected to the output end of the motor 11. The support frame 17 is at the front end of the lifting block 16. The electric universal joint 14 is symmetrically arranged at both ends of the upper side of the support frame 17. The spraying devices are all located at the upper end of the electric universal joint 14. The device includes a remote PLC. The control system, the remote PLC control system, is electrically connected to the moving track assembly, the adjustment assembly, the spraying device and the drying fan 5 respectively.
[0026] During use, the worker secures the bicycle frame to be painted to the lower end of the electric rotating column 6 using hooks 7. The anti-slip rubber pads inside the hooks 7 ensure a firm grip on the frame, preventing wobbling during painting. The operator inputs the frame model (e.g., mountain bike, road bike) through the PLC control system's human-machine interface or directly calls a preset program. The system automatically matches the corresponding painting parameters, including the moving speed of the magnetic block 9 on the rotating slide 8, the rotation speed of the electric rotating column 6, the lifting height and angle adjustment range of the nozzle 12, and the painting pressure and flow rate of the diaphragm pump. Subsequently, the PLC sends a command to activate the electromagnetic coil of the rotating slide 8. Once energized, the electromagnetic coil generates a changing magnetic field. Since the magnetic block 9 itself is magnetic, according to the principle of electromagnetic induction, the changing magnetic field exerts a magnetic force on the magnetic block 9. When the electromagnetic coil adjusts the current magnitude and direction according to the control system's commands, the magnetic field strength and direction also change accordingly. Driven by this magnetic force, the magnetic block 9 slides along the preset track direction of the rotating slide 8, thus achieving precise position movement and positioning control. Simultaneously, the non-contact connection between the magnetic block 9 and the rotating slide 8 reduces frictional loss, and the limit block prevents the magnetic block 9 from derailing. When the vehicle frame moves to the painting station, the system automatically triggers the braking mechanism, causing the magnetic block 9 to stop precisely at the preset position. When the adjustment assembly is activated, the motor 11 receives a signal and outputs a drive to rotate the threaded rod 15. Under the limit of the fixed box 10, the lifting block 16 moves up and down, adjusting the height of the spray nozzle 12 to the target spraying area on the vehicle frame. At the same time, the electric universal joint 14 is activated, driving the spray nozzle 12 to rotate within a horizontal range of 360° and a vertical range of ±45°, aiming at complex parts of the vehicle frame such as T-pipes and irregular curved surfaces. A diaphragm pump draws paint from the bottom of the storage tank 3 and delivers it to the nozzle 12 via the connecting pipe 4. The nozzle 12 ensures that the paint is evenly dispersed and sprayed. The electric rotating column 6 synchronously drives the frame to rotate, exposing the circumferential surface of the pipe to the spraying area. For example, when spraying the riser, the nozzle 12 maintains a fixed angle, and the frame rotates at a speed of 3-5 rpm to form a uniform annular coating. For complex joints (such as the connection between the bottom bracket and the seat tube), the PLC system controls the electric universal joint 14 to dynamically adjust the angle of the nozzle 12, while simultaneously reducing the moving speed of the magnetic block 9 to increase the amount of paint sprayed per unit area until the entire surface is evenly sprayed. Unattached paint particles fall with the airflow, causing them to gather in the filtration area at the center of processing plate 1. After filtration, they enter storage tank 3 for easy recycling. After the coating is applied, magnetic block 9 moves the vehicle frame to the drying area. The PLC system automatically adjusts the speed of the drying fan 5 (500-2000 rpm) according to the type of paint (e.g., water-based / solvent-based paint) to accelerate the curing of the coating. After drying, the frame moves with the magnetic block 9 to the outlet opening of the protective box 2. The worker takes off the finished product, and at the same time, the hook 7 automatically rotates to the initial position, waiting for the next frame to be mounted, forming a continuous production cycle.
[0027] In actual use, it is necessary to reduce the adhesion and accumulation of coating on the inner wall of the protective box 2 and reduce the cleaning frequency. In order to meet the above requirements, in this embodiment, the inner wall of the protective box 2 is provided with an anti-splash coating, which is made of polytetrafluoroethylene material.
[0028] In actual use, it is necessary to be able to automatically retrieve the spraying parameters according to the chassis model to improve production efficiency and reduce manual intervention. In order to meet the above requirements, in this embodiment, the bottom of the protective box 2 is provided with a discharge port, and a sealing valve is installed at the discharge port.
[0029] In practical applications, it is necessary to be able to recycle and reuse paint particles. To meet this requirement, in this embodiment, the filter material has a multi-layer composite structure, including an upper stainless steel filter screen, a middle activated carbon adsorption layer, and a lower polyester fiber filter cotton. Stainless steel filter mesh (0.5-1mm pore size) intercepts large particles of debris; activated carbon adsorption layer captures volatile organic compounds; polyester fiber filter cotton further filters fine dust.
[0030] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spraying apparatus for producing bicycle frames, comprising a processing plate (1), characterized in that: The bottom wall of the processing plate (1) is provided with a storage box (3), the upper side wall of the processing plate (1) is provided with a protective box (2), the two side walls of the protective box (2) are provided with openings, the protective box (2) is provided with a moving track assembly, the lower end of the moving track is provided with an electric rotating column (6), the lower end of the electric rotating column (6) is provided with a hook (7), one side wall of the protective box (2) is provided with an adjustment assembly, the adjustment assembly is provided with a spraying device, the spraying device is connected to the storage box (3), the other side wall of the protective box (2) is provided with multiple drying fans (5), and the center of the processing plate (1) is made of filter material; The moving track assembly includes a rotating slide (8) and a magnetic block (9). The rotating slide (8) is connected to the protective box (2). The magnetic block (9) is evenly distributed on the rotating slide (8) and is electromagnetically slidably connected to it. The electric rotating column (6) is located at the lower end of the magnetic block (9). The adjustment assembly includes a fixed box (10), a threaded rod (15), a lifting block (16), a motor (11), a support frame (17), and an electric universal joint (14). The fixed box (10) is connected to the protective box (2). The threaded rod (15) passes through the fixed box (10). The lifting block (16) is inside the fixed box (10) and fits against it and is slidably connected. The threaded rod (15) passes through the lifting block (16) and is threadedly connected to it. The motor (11) is at the upper end of the fixed box (10). The upper end of the threaded rod (15) is connected to the output end of the motor (11). The support frame (17) is at the front end of the lifting block (16). The electric universal joint (14) is symmetrically arranged at both ends of the upper side of the support frame (17). The spraying devices are all at the upper end of the electric universal joint (14).
2. The spraying device for producing bicycle frames according to claim 1, characterized in that: The spraying device includes a pump (13), a nozzle (12) and a connecting pipe (4). One end of the connecting pipe (4) is connected to the input end of the pump (13), and the other end passes through the lower end of the side wall of the storage tank (3). The nozzle (12) is connected to the output end of the pump (13). The pump (13) is connected to the upper end of the electric universal joint (14). The pump (13) is a diaphragm pump.
3. The spraying device for producing bicycle frames according to claim 1, characterized in that: The inner wall of the protective box (2) is provided with an anti-splash coating, which is made of polytetrafluoroethylene material.
4. A spraying device for producing bicycle frames according to claim 1, characterized in that: The bottom of the protective box (2) is provided with a discharge port, and a sealing valve is installed at the discharge port.
5. A spraying device for producing bicycle frames according to claim 1, characterized in that: The device includes a remote PLC control system, which is electrically connected to the moving track assembly, the adjustment assembly, the spraying device and the drying fan (5).
6. A spraying apparatus for producing bicycle frames according to claim 2, characterized in that: The filter material has a multi-layer composite structure, including an upper stainless steel filter screen, a middle activated carbon adsorption layer, and a lower polyester fiber filter cotton.