An automatic painting system

Abstract

An automatic spraying system, including a support and a material cylinder, a PLC controller and an electric control valve arranged at the bottom of the material cylinder arranged on the support, further including an interpreter connected with the PLC controller, a position sensor and an electronic tag wirelessly connected with the PLC controller through the interpreter; the system further includes a mixing chamber, a nozzle, a solenoid valve and an electric air valve; the solenoid valve is arranged on the nozzle; the nozzle is arranged at one end of the mixing chamber, and the other end of the mixing chamber is connected with the electric air valve; the other end of the electric air valve is connected with an external pressurizer through a pressurizing pipe; the mixing chamber is further provided with an electric material valve; the electric material valve is connected with the electric control valve through a pipeline; the solenoid valve, the electric air valve, the electric control valve and the PLC controller are connected. The utility model automatically identifies the type of the transportation unit through the electrical system, switches the corresponding material cylinder chamber, realizes zero confusion; the spraying action and the material transportation speed are real-time synchronized, and the missing spraying and the re-spraying are eliminated.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary tools for copper smelting and processing spraying, and specifically relates to an automatic spraying system. Background Technology

[0002] In metal processing production, existing systems often employ simple parallel multi-pipeline designs in the material supply stage. Operators must manually switch valves or change storage tanks according to the production plan to accommodate different colors or types of paint. This reliance on manual judgment and operation is highly susceptible to material confusion in complex production environments with frequent line changes due to operator fatigue, negligence, or information transmission errors. Regarding the coordination between spraying execution and workpiece transport, traditional control systems have low integration and cannot achieve precise synchronization. This leads to frequent missed spraying areas due to coordinate misalignment in high-speed continuous production, or repeated spraying of adjacent workpiece edges to compensate for misalignment. This not only wastes paint but also generates a large number of defective and reworked products, severely restricting production cycle time and overall efficiency. Furthermore, existing technologies lack effective proactive preventative measures for paint maintenance in pipelines. Especially when handling fast-drying paints, high-viscosity paints, or temperature-sensitive materials, paint is prone to evaporation, gelation, or even complete solidification while stagnant in pipelines, causing blockages in spray guns, nozzles, and supply lines. To solve this problem, the production line must be shut down frequently, and manual cleaning and unclogging with large amounts of organic solvents is required, which not only increases maintenance costs but also reduces equipment uptime. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic spraying system that automatically identifies the type of transport unit through an electrical system, switches the corresponding material cylinder chamber, achieves zero confusion, and synchronizes the spraying action with the material transport speed in real time, thus eliminating missed spraying and re-spraying.

[0004] This utility model is achieved through the following technical solution: An automatic spraying system includes a support frame, a material cylinder mounted on the support frame, a PLC controller, and an electric control valve located at the bottom of the material cylinder. It also includes a reader connected to the PLC controller, a position sensor, and an electronic tag wirelessly connected to the PLC controller via the reader. The system further includes a mixing chamber, nozzles, a solenoid valve, and an electric air valve. The solenoid valve is mounted on the nozzle. The nozzle is located at one end of the mixing chamber, and the other end of the mixing chamber is connected to the electric air valve. The other end of the electric air valve is connected to an external pressure device via a pressure pipe. An electric material valve is also provided on the mixing chamber. The electric material valve is connected to the electric control valve via a pipe. The solenoid valve, electric air valve, and electric control valve are connected to the PLC controller.

[0005] The PLC controller is electrically connected to the valves mentioned above, and both are powered by an external power source. When the system is working, the pressure booster also works, and the PLC controller controls the electric air valve for flow control.

[0006] To further illustrate this utility model, the material cylinder is equipped with an anti-condensation device.

[0007] Further describing this invention, the anti-caking device includes a heater and a stirrer connected to a PLC controller. The heater and stirrer are powered by an external power source and prevent the sprayed material from solidifying through heating and stirring.

[0008] First, an electronic tag at the front end of the conveyor line records the information about the material and the material to be coated. This information is read by the reader and fed back to the PLC controller. The PLC controller identifies the material type and controls the anti-caking device in the corresponding hopper, as well as the electric control valve and electric feed valve below the corresponding hopper, to prepare the material for the mixing chamber. Then, the position sensor starts working. When it detects that material is entering the coating position, the PLC controller controls the solenoid valve to start working, and the nozzle begins to spray the material. At the same time, the PLC controller opens the electric air valve. Based on the material type, conveyor line speed, and other requirements, the PLC controller pre-calculates the coating time and flow rate, and controls the electric air valve to pressurize the mixing chamber to control the coating flow rate. Finally, after the position sensor detects that the material has left and the coating time has been reached, the PLC controller controls the electric control valve to close first, thus clearing the remaining coating material from the pipeline. Then, the electric feed valve, electric air valve, and solenoid valve are closed in sequence, and the system enters standby mode.

[0009] The beneficial effects of this utility model are: This invention is an automatic spraying system that automatically identifies the type of transport unit through an electrical system, switches the corresponding material cylinder chamber, achieves zero confusion, and synchronizes the spraying action with the material transport speed in real time, thus eliminating missed spraying and re-spraying. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the electrical structure of this utility model; In the diagram: 1. Support bracket; 2. Material cylinder; 3. PLC controller; 4. Electric control valve; 5. Mixing chamber; 6. Nozzle; 7. Solenoid valve; 8. Electric air valve; 9. Electric material valve; 10. Heater; 11. Agitator; 12. Fixed support bracket. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings. Example

[0012] like Figure 1 As shown, an automatic spraying system includes a bracket 1, a material cylinder 2 mounted on the bracket 1, a PLC controller 3, and an electric control valve 4 located at the bottom of the material cylinder 2. It also includes a reader connected to the PLC controller 3, a position sensor, and an electronic tag wirelessly connected to the PLC controller 3 via the reader. The system further includes a mixing chamber 5, a nozzle 6, a solenoid valve 7, and an electric air valve 8. The solenoid valve 7 is mounted on the nozzle 6. The nozzle 6 is located at one end of the mixing chamber 5, and the other end of the mixing chamber 5 is connected to the electric air valve 8. The other end of the electric air valve 8 is connected to an external pressure device via a pressure pipe. An electric material valve 9 is also mounted on the mixing chamber 5. The electric material valve 9 is connected to the electric control valve 4 via a pipe. The solenoid valve 7, the electric air valve 8, and the electric control valve 4 are connected to the PLC controller 3.

[0013] The material cylinder 2 is equipped with an anti-condensation device. The anti-condensation device includes a heater 10 and a stirrer 11 connected to a PLC controller. The stirrer 11 is fixed to the material cylinder 2 by a fixing bracket 12, and the heater 10 is fixedly installed inside the material cylinder 2.

[0014] First, an electronic tag at the front end of the conveyor line is used to input information about the materials and the coating to be applied. This information is read by the reader and fed back to the PLC controller 3. The PLC controller 3 identifies the material type and controls the anti-condensation device in the corresponding material cylinder 2, as well as the electric control valve 4 and electric material valve 9 below the corresponding material cylinder 2, to prepare the coating material for entry into the mixing chamber 5. Then, the position sensor starts working. When it detects that material is entering the coating position, the PLC controller 3 controls the solenoid valve 7 to start working, and the nozzle 6 begins to spray the material. At the same time, the PLC controller 3 opens the electric air valve 8, pre-calculates the coating time and flow rate according to the material type, conveyor line speed, etc., and controls the electric air valve 8 to pressurize the mixing chamber 5 to control the coating flow rate. Finally, after the position sensor detects that the material has left and the coating time has been reached, the PLC controller 3 controls the electric control valve 4 to close first, to clear the remaining coating material inside the pipeline. Then, the electric material valve 9, electric air valve 8, and solenoid valve 7 are closed in sequence, and the system enters standby mode.

Claims

1. An automated spray system, characterized by: The system includes a support (1) and a cylinder (2) mounted on the support (1), a PLC controller (3) and an electric control valve (4) located at the bottom of the cylinder (2), as well as a reader connected to the PLC controller (3), a position sensor and an electronic tag wirelessly connected to the PLC controller (3) via the reader; the system also includes a mixing chamber (5), a nozzle (6), a solenoid valve (7) and an electric air valve (8); the solenoid valve (7) is mounted on the nozzle (6); the nozzle (6) is mounted at one end of the mixing chamber (5), and the other end of the mixing chamber (5) is connected to the electric air valve (8); the other end of the electric air valve (8) is connected to an external pressure device via a pressure pipe; the mixing chamber (5) is also equipped with an electric material valve (9); the electric material valve (9) is connected to the electric control valve (4) via a pipe; the solenoid valve (7), the electric air valve (8) and the electric control valve (4) are connected to the PLC controller (3).

2. An automatic spraying system according to claim 1, characterized in that: The material cylinder (2) is equipped with an anti-condensation device.

3. An automatic spraying system according to claim 2, characterized in that: The anti-condensation device includes a heater (10) and a stirrer (11) connected to a PLC controller.

4. An automatic spraying system according to claim 3, characterized in that: The agitator (11) is fixed to the barrel (2) by a fixed bracket (12), and the heater (10) is fixed inside the barrel (2).

Images