Paint spraying system
By employing separately controlled material supply devices and spray gun air paths in the painting system, combined with flow meter monitoring, the problems of high equipment pressure and high maintenance costs caused by long delivery pipelines have been solved, achieving stability and high efficiency in the painting process.
Patent Information
- Application Number
- CN202520175124.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In existing spray painting systems, the main controller is far from the material supply device and spray gun, resulting in long delivery pipelines, high equipment operating pressure, increased maintenance costs, and the need for additional heating equipment to ensure paint flowability, which limits the optimization of system performance.
The system employs a separate control method, with the paint supply device and conveying pipe controlled by the first controller, and the air supply of the spray gun controlled by the second controller. These controls are independently adjustable, and a flow meter is installed inside the spray gun to monitor the spray volume in real time, ensuring stable paint supply and precise spray pressure.
It improves the flexibility and responsiveness of the painting system, reduces operating and maintenance costs, ensures consistent and efficient painting quality, and avoids the operational complexity and failure risks associated with a single controller.
Smart Images
Figure CN223888230U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of spray painting equipment technology, and in particular to a spray painting system. Background Technology
[0002] Spray painting systems are widely used in various fields such as automobile manufacturing, furniture production, and home appliance coating, and are an important component of modern industrial production. With continuous technological advancements, the performance and efficiency of spray painting systems have significantly improved, not only enhancing product quality but also drastically shortening production cycles and effectively reducing production costs. However, in practical applications, spray painting systems still face many challenges, particularly with the increasing demand for automation and precise control, prompting engineers to continuously seek more efficient and reliable solutions.
[0003] Existing painting systems typically consist of a paint supply unit, a conveying pipeline, and spray guns. The paint supply unit delivers paint to the spray guns via the conveying pipeline. To achieve automated control, painting systems are usually equipped with a main controller, which is responsible for controlling the operation of the paint supply unit and the air circuit switching of the spray guns.
[0004] However, in actual use, the distance between the main controller and the feeding device and spray gun is relatively long. The paint delivery pipeline requires the main controller to control the paint flow rate, resulting in pipelines as long as 40 meters. This increases the operating pressure on the painting system equipment, leading to increased wear and tear and higher maintenance costs. Furthermore, to ensure paint flowability, heating equipment is often installed on the delivery pipeline to prevent the paint from thickening due to temperature drops, further increasing costs. These problems limit the performance optimization and development potential of the painting system. Utility Model Content
[0005] To reduce costs, this utility model provides a spray painting system.
[0006] The spray painting system provided by this utility model adopts the following technical solution:
[0007] A painting system includes a material supply device, a first controller, a delivery pipe, a spray gun, and a second controller. The material supply device is connected to the spray gun via the delivery pipe. The first controller is located near the material supply device and electrically connected to it. The first controller can control the material supply device to supply material to the delivery pipe. The spray gun includes a nozzle and an air passage. The nozzle is used to spray paint, and the air passage is used to provide spraying power. The second controller is located near the spray gun and electrically connected to it. The second controller can control the opening and closing of the air passage of the spray gun.
[0008] By adopting the above technical solution, the paint path of the feeding device and conveying pipe, as well as the air path of the spray gun, are independently controlled by different controllers, allowing for more precise adjustment of the paint and air paths. Specifically, the first controller can precisely control the timing and amount of paint supplied by the feeding device to the conveying pipe, ensuring a stable paint supply; while the second controller can independently control the opening and closing of the air path of the spray gun, thereby achieving fine adjustment of the spray pressure and time. This separate control method not only improves the system's flexibility and response speed but also effectively avoids the operational complexity and potential failure risks caused by a single controller simultaneously controlling multiple functions. Furthermore, when the feeding device delivers paint to the spray gun, it can deliver it in a straight line, shortening the length of the conveying pipe and eliminating the need for additional heating equipment, thus reducing operating costs and the workload of the feeding device and other equipment, thereby reducing maintenance costs.
[0009] Preferably, the feeding device includes a first cylinder containing paint, a first siphon tube, a second cylinder containing curing agent, a second siphon tube, and a pump body. One end of the first siphon tube is connected to the first cylinder and the other end is connected to the pump body. One end of the second siphon tube is connected to the second cylinder and the other end is connected to the pump body. The output end of the pump body is connected to the delivery pipe.
[0010] By adopting the above technical solution, the feeding device can mix paint and hardener in a preset ratio and deliver them to the spray gun through a conveying pipe, improving the spraying quality. Simultaneously, a first siphon pipe connects to the first material cylinder, and a second siphon pipe connects to the second material cylinder, ensuring a stable supply of both materials and avoiding spraying problems caused by uneven mixing. The pump design makes the feeding process more efficient and controllable, further enhancing the system's reliability and stability.
[0011] Preferably, the pump body is electrically connected to the first controller, which can control the volume of paint and hardener drawn in by the pump body, thereby controlling the mixing ratio of the paint and hardener.
[0012] By adopting the above technical solution, it is possible to accurately control the mixing ratio of paint and hardener, ensure the quality stability and consistency of paint during the spraying process, and improve the spraying effect and work efficiency.
[0013] Preferably, a first valve is provided between the first siphon tube and the pump body, with one end of the first valve connected to the first siphon tube and the other end connected to the pump body.
[0014] By adopting the above technical solution, the first valve can effectively control the on / off state between the first siphon pipe and the pump body, thereby achieving precise control of the paint supply. This not only improves the system's flexibility but also ensures the stability and reliability of the spraying process. Specifically, when it is necessary to adjust the paint supply, a rapid response can be achieved by controlling the opening and closing of the first valve, preventing excessive or insufficient paint from entering the pump body and thus affecting the final spraying quality.
[0015] Preferably, a second valve is provided between the second siphon tube and the pump body, with one end of the second valve connected to the second siphon tube and the other end connected to the pump body.
[0016] By adopting the above technical solution, the second valve makes the material supply process of the painting system more controllable. Specifically, the second valve can effectively regulate the flow state between the second siphon and the pump body, thereby achieving precise control over the supply of hardener. This not only improves the accuracy of the paint and hardener mixing ratio during the painting process, but also enhances the stability and reliability of the system.
[0017] Preferably, both the first valve and the second valve are solenoid valves, and both are electrically connected to the first controller.
[0018] By adopting the above technical solution, the use of solenoid valves allows the first controller to precisely control the opening and closing states of the first and second valves, thereby more accurately regulating the feed rates of paint and hardener, ensuring that they are mixed in a predetermined ratio, and improving painting quality and efficiency. At the same time, the solenoid valves have a fast response speed, enabling rapid opening and closing, further improving the system's automation level and stability.
[0019] Preferably, the spray gun further includes a flow meter, which is disposed inside the spray gun and electrically connected to the second controller.
[0020] By adopting the above technical solution, a flow meter is added to the spray gun. The flow meter can monitor the spray volume in real time and transmit this data to the second controller. This enables precise control of the spray volume, improves the stability and consistency of the painting process, reduces waste, and ensures product quality.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. The paint path of the feeding device and conveying pipe, as well as the air path of the spray gun, are independently controlled by different controllers, allowing for more precise adjustment of the paint and air paths. Specifically, the first controller precisely controls the timing and amount of paint supplied from the feeding device to the conveying pipe, ensuring a stable paint supply; while the second controller independently controls the opening and closing of the air path of the spray gun, thereby achieving fine adjustment of spray pressure and time. This separate control method not only improves the system's flexibility and response speed but also effectively avoids the operational complexity and potential failure risks caused by a single controller controlling multiple functions simultaneously. Furthermore, when the feeding device delivers paint to the spray gun, it can deliver it in a straight line, shortening the length of the conveying pipe and eliminating the need for additional heating equipment, thus reducing operating costs and the workload of the feeding device and other equipment, thereby reducing maintenance costs.
[0023] 2. The flow meter inside the spray gun monitors the spray volume in real time and feeds it back to the second controller, so that the spray volume of the spray gun can be precisely controlled, which further improves the accuracy and consistency of painting and meets the requirements of high-precision spraying. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a spray painting system.
[0025] Figure 2 This is a block diagram of the first controller and its connection structure.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Feeding device; 11. First material cylinder; 12. First siphon pipe; 13. Second material cylinder; 14. Second siphon pipe; 15. Pump body; 2. First controller; 3. Conveying pipe; 4. Spray gun; 41. Nozzle; 42. Air passage; 5. Second controller. Detailed Implementation
[0028] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0029] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.
[0030] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.
[0031] A painting system, as described above Figure 1 The system includes a feeding device 1, a first controller 2, a conveying pipe 3, a spray gun 4, and a second controller 5. The feeding device 1 is connected to the spray gun 4 via the conveying pipe 3. The first controller 2 is located near the feeding device 1 and is electrically connected to it. The first controller 2 controls the feeding device 1 to supply material to the conveying pipe 3. The spray gun 4 includes a nozzle 41 and an air passage 42. The nozzle 41 is used to spray paint, and the air passage 42 is used to provide spraying power. The second controller 5 is located near the spray gun 4 and is electrically connected to it. The second controller 5 controls the opening and closing of the air passage 42 of the spray gun 4.
[0032] The first controller 2 can precisely control the timing and amount of paint supplied from the feeding device 1 to the conveying pipe 3, ensuring a stable paint supply. The second controller 5 can independently control the opening and closing of the air passage 42 of the spray gun 4, thereby achieving fine adjustment of the spray pressure and time. This separate control method not only improves the system's flexibility and response speed but also effectively avoids the operational complexity and potential failure risks caused by a single controller simultaneously controlling multiple functions. Furthermore, when the feeding device 1 delivers paint to the spray gun 4, it can do so in a straight line, shortening the length of the conveying pipe 3 and eliminating the need for additional heating equipment, thus reducing operating costs and the workload of the feeding device 1 and other equipment, thereby reducing maintenance costs.
[0033] Reference Figure 1 The feeding device 1 includes a first material cylinder 11, a first siphon tube 12, a second material cylinder 13, a second siphon tube 14, and a pump body 15. The first material cylinder 11 contains paint. The second material cylinder 13 contains a hardener. One end of the first siphon tube 12 is connected to the first material cylinder 11, and the other end is connected to the pump body 15. One end of the second siphon tube 14 is connected to the second material cylinder 13, and the other end is connected to the pump body 15. The output end of the pump body 15 is connected to the delivery pipe 3.
[0034] The feeding device 1 can mix paint and hardener according to a preset ratio and deliver them to the spray gun 4 through the conveying pipe 3, thereby improving the spraying quality. At the same time, the first material cylinder 11 is connected through the first siphon pipe 12 and the second material cylinder 13 is connected through the second siphon pipe 14, so as to achieve a stable supply of the two materials and avoid spraying problems caused by uneven mixing.
[0035] Reference Figure 1 The pump body 15 is electrically connected to the first controller 2, which controls the volume of paint and hardener drawn in by the pump body 15, thereby controlling the mixing ratio of paint and hardener. This allows for flexible adjustment of the mixing ratio according to actual needs, improving the spraying effect.
[0036] Reference Figure 1 and Figure 2 A first valve is installed between the first siphon pipe 12 and the pump body 15, with one end of the first valve connected to the first siphon pipe 12 and the other end connected to the pump body 15. Similarly, a second valve is installed between the second siphon pipe 14 and the pump body 15, with one end of the second valve connected to the second siphon pipe 14 and the other end connected to the pump body 15. Both the first and second valves are solenoid valves and are electrically connected to the first controller 2. Solenoid valves have a fast response speed and can quickly and accurately control the liquid flow, thereby improving the system's response speed and control accuracy.
[0037] The first valve effectively controls the on / off state between the first siphon pipe 12 and the pump body 15, thereby achieving precise control over the paint supply. The second valve effectively regulates the flow state between the second siphon pipe 14 and the pump body 15, thereby achieving precise control over the hardener supply. This, in turn, allows for more accurate adjustment of the paint and hardener feed rates, ensuring they are mixed in a predetermined ratio, thus improving painting quality and efficiency.
[0038] Reference Figure 1 The spray gun 4 also includes a flow meter, which is fixed inside the spray gun 4 and electrically connected to the second controller 5. The flow meter can detect the spray volume of the spray gun 4 in real time and transmit the data to the second controller 5.
[0039] By monitoring the spray volume in real time, the second controller 5 can dynamically adjust the working state of the spray gun 4 based on the feedback data to ensure uniform and consistent paint spraying.
[0040] The operating principle of this application is as follows: the paint path of the feeding device 1 and the conveying pipe 3, as well as the air path 42 of the spray gun 4, are independently controlled by different controllers, allowing for more precise adjustment of the paint path and air path 42. Specifically, the first controller 2 can precisely control the time and amount of paint supplied by the feeding device 1 to the conveying pipe 3, ensuring a stable paint supply; while the second controller 5 can independently control the opening and closing of the air path 42 of the spray gun 4, thereby achieving fine adjustment of the spray pressure and time. This separate control method not only improves the system's flexibility and response speed, but also effectively avoids the operational complexity and potential failure risks caused by a single controller controlling multiple functions simultaneously. At the same time, when the feeding device 1 delivers paint to the spray gun 4, it can deliver it in a straight line, which shortens the length of the conveying pipe 3 and eliminates the need for additional heating equipment, reducing operating costs and the working pressure on the feeding device 1 and other equipment, thus reducing maintenance costs.
[0041] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A spray painting system, characterized in that: The system includes a feeding device (1), a first controller (2), a conveying pipe (3), a spray gun (4), and a second controller (5). The feeding device (1) is connected to the spray gun (4) through the conveying pipe (3). The first controller (2) is located near the feeding device (1) and is electrically connected to the feeding device (1). The first controller (2) can control the feeding device (1) to supply material to the conveying pipe (3). The spray gun (4) includes a nozzle (41) and an air passage (42). The nozzle (41) is used to spray paint, and the air passage (42) is used to provide spraying power. The second controller (5) is located near the spray gun (4) and is electrically connected to the spray gun (4). The second controller (5) can control the opening and closing of the air passage (42) of the spray gun (4).
2. The spray painting system according to claim 1, characterized in that: The feeding device (1) includes a first cylinder (11) containing paint, a first siphon tube (12), a second cylinder (13) containing curing agent, a second siphon tube (14) and a pump body (15). One end of the first siphon tube (12) is connected to the first cylinder (11) and the other end is connected to the pump body (15). One end of the second siphon tube (14) is connected to the second cylinder (13) and the other end is connected to the pump body (15). The output end of the pump body (15) is connected to the conveying pipe (3).
3. A spray painting system according to claim 2, characterized in that: The pump body (15) is electrically connected to the first controller (2), which can control the volume of paint and hardener drawn in by the pump body (15) to control the mixing ratio of paint and hardener.
4. A spray painting system according to claim 2, characterized in that: A first valve is provided between the first siphon tube (12) and the pump body (15), with one end of the first valve connected to the first siphon tube (12) and the other end connected to the pump body (15).
5. A spray painting system according to claim 4, characterized in that: A second valve is provided between the second siphon pipe (14) and the pump body (15). One end of the second valve is connected to the second siphon pipe (14), and the other end is connected to the pump body (15).
6. A spray painting system according to claim 5, characterized in that: Both the first valve and the second valve are solenoid valves and are electrically connected to the first controller (2).
7. A spray painting system according to claim 1, characterized in that: The spray gun (4) also includes a flow meter, which is located inside the spray gun (4) and electrically connected to the second controller (5).