Spraying system suitable for climbing robot

Abstract

The utility model belongs to the technical field of spraying operation, in particular to a spraying system suitable for a climbing robot, which comprises a spray gun arranged on the climbing robot, an oil tank and a compressed air source, and the input end of the spray gun comprises an air inlet and an oil inlet; a flow control valve is arranged on the oil pipe between the oil tank and the oil inlet, and an electromagnetic valve is arranged on the air pipe between the compressed air source and the air inlet; and the input ends of the electromagnetic valve and the flow control valve are connected to the output end of a control module of the climbing robot. The paint spraying amount of the spraying gun is controlled through the flow control valve, the working state of the spraying gun is controlled through the electromagnetic valve, the real-time paint spraying amount during spraying operation can be controlled, when the original paint surface thickness is not enough, the paint spraying amount can be changed, and the final spraying thickness cannot exceed the standard; the double problems of insufficient spraying uniformity and serious waste of consumables are solved.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically a spraying system suitable for climbing robots. Background Technology

[0002] Traditional spray guns atomize paint using high-pressure air, and their nozzles need to be opened by compressed gas. Therefore, controlling the airflow through a solenoid valve allows for precise regulation of the nozzle's opening and closing, enabling operators to effectively control the start and stop of the spraying system.

[0003] In the spraying equipment carried by the climbing robot, the robot needs to move along the building facade to complete the painting operation. However, due to the atomization uniformity defects of traditional spray guns—the paint buildup density in the central area is significantly higher than that in the edge area, resulting in significant differences in paint film thickness distribution (the thickness in the central area can be 1.5-2 times that of the edge area)—the system often needs to instruct the robot to re-spray and correct the edge parts of the previously sprayed area.

[0004] However, due to the lack of a real-time paint feed rate feedback and adjustment mechanism, the paint accumulation in the overlapping sprayed areas is non-linear, which easily leads to excessive paint film thickness (usually exceeding the design value by 30%-50%). Furthermore, the proportion of the repainted area to the overall sprayed area can reach 25%-40%, resulting in a significant increase in material loss rate (15%-25% higher than the ideal state).

[0005] These problems not only lead to increased costs due to paint waste, but may also cause surface defects such as sagging and orange peel, making it difficult for key indicators such as coating adhesion and weather resistance to meet the building coating acceptance standards such as GB / T 5210-2006.

[0006] Therefore, this application proposes a paint spraying system with controllable paint volume suitable for climbing robots. Utility Model Content

[0007] In view of the shortcomings of the existing technology, this utility model provides a spraying system suitable for climbing robots, which overcomes the dual problems of insufficient spraying uniformity and serious waste of consumables in traditional climbing robot spraying operations.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a spraying system suitable for climbing robots, comprising a spray gun, an oil tank and a compressed air source mounted on the climbing robot, wherein the input end of the spray gun includes an air inlet and an oil inlet;

[0009] A flow control valve is installed on the oil pipe between the oil tank and the oil inlet, and a solenoid valve is installed on the air pipe between the compressed air source and the air inlet.

[0010] The input terminals of the solenoid valve and the flow control valve are both connected to the output terminal of the climbing robot's control module.

[0011] By adopting this technical solution, the amount of paint sprayed by the spray gun is controlled by a flow control valve, and the working state of the spray gun is controlled by a solenoid valve. This makes the real-time amount of paint sprayed during the spraying operation controllable. When repainting areas where the original paint thickness is insufficient, the amount of paint sprayed can be adjusted to ensure that the final paint thickness does not exceed the standard. This solves the dual problems of insufficient paint uniformity and serious waste of consumables.

[0012] Preferably, there are multiple spray guns, and each spray gun is equipped with a corresponding solenoid valve and a flow control valve.

[0013] Preferably, the spray gun is connected to the climbing robot via a spraying bracket.

[0014] Compared with the prior art, this utility model provides a spraying system suitable for climbing robots, which has the following beneficial effects:

[0015] This painting system for climbing robots controls the amount of paint sprayed by the spray gun through a flow control valve and controls the working state of the spray gun through a solenoid valve. This allows for real-time control of the amount of paint sprayed during the painting operation. When repainting areas where the original paint thickness is insufficient, the amount of paint sprayed can be adjusted to ensure that the final paint thickness does not exceed the standard. This solves the dual problems of insufficient paint uniformity and serious waste of consumables. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the oil circuit structure of a spraying system suitable for climbing robots;

[0017] Figure 2 This is a schematic diagram of the air path structure of a spraying system suitable for climbing robots;

[0018] Figure 3 This is a topology diagram of a spraying system suitable for climbing robots.

[0019] In the diagram: 1. Climbing robot; 2. Spray gun; 3. Oil tank; 4. Compressed air source; 5. Oil pipe; 6. Flow control valve; 7. Air pipe; 8. Solenoid valve; 9. Control module; 10. Spraying bracket. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 This utility model provides the following technical solution: a spraying system suitable for climbing robots, including a spray gun 2, an oil tank 3, and a compressed air source 4 installed on the climbing robot 1. The input end of the spray gun 2 includes an air inlet and an oil inlet. A flow control valve 6 is installed on the oil pipe 5 between the oil tank 3 and the oil inlet, and a solenoid valve 8 is installed on the air pipe 7 between the compressed air source 4 and the air inlet. The control lines of the compressed air source 4, the solenoid valve 8, and the flow control valve 6 are all connected to the circuit board of the control module 9 in the control box of the climbing robot 1. The circuit board issues unified instructions to control the climbing robot 1 to perform spraying operations during its movement.

[0022] As an optional embodiment of this utility model, the oil tank 3 is the component for storing paint. The compressed air source 4 can be an air tank and an air pump for storing compressed gas. The compressed air source 4 is used to provide compressed gas to the spray gun 2. After the compressed gas enters the spray gun 2, it can open the paint outlet of the spray gun 2. The flow control valve 6 controls the paint supply flow rate, that is, the supply amount of the spray gun 2, by controlling the flow area of ​​the paint in the oil pipe 5. When the compressed gas flows in the spray gun 2, it can carry the paint and form a spray. The solenoid valve 8 can control the opening and closing of the air pipe 7. When the solenoid valve 8 is closed, the paint outlet of the spray gun 2 is closed, so the spraying operation stops.

[0023] In this application, since traditional spray gun 2 can supply paint using pressure (pump delivery), gravity, and siphon effects, and all three methods are applicable in the spraying operation of climbing robot 1, this technical solution does not specify a particular method for paint supply. However, if pressure delivery is chosen, the oil pump control should be integrated into control module 9.

[0024] By adopting this technical solution, the amount of paint sprayed by the spray gun 2 is controlled by the flow control valve 6, and the working state of the spray gun 2 is controlled by the solenoid valve 8. This makes the real-time amount of paint sprayed during the spraying operation controllable. When repainting areas where the original paint thickness is insufficient, the amount of paint sprayed can be changed to ensure that the final paint thickness does not exceed the standard. This solves the dual problems of insufficient paint uniformity and serious waste of consumables.

[0025] like Figure 1-2 As shown, there are multiple spray guns 2, and each spray gun 2 is equipped with a corresponding solenoid valve 8 and a flow control valve 6.

[0026] As an optional implementation of this utility model, in some cases, such as when spraying on a flat wall surface, in order to improve work efficiency, a climbing robot 1 can carry multiple spray guns 2 at the same time. Therefore, this technical solution does not limit the specific number of spray guns 2. Each spray gun 2 is equipped with an independent solenoid valve 8 and a flow control valve 6, so that the amount of paint sprayed by each spray gun 2 can be independently controlled. Therefore, two adjacent spray guns 2 can help each other to deal with the problem of insufficient paint thickness in the edge area of ​​the spraying, which greatly improves the efficiency of the spraying operation.

[0027] like Figure 1 As shown, the spray gun 2 is connected to the climbing robot 1 via the spraying bracket 10.

[0028] As an optional implementation of this utility model, the spraying bracket 10 is an existing component for mounting the spray gun 2 on the climbing robot 1. It can be a robotic arm, a frame, or a component with adjustable spraying angle, distance, and spraying area. This technical solution does not limit it in this way.

[0029] The working principle and usage process of this utility model are as follows: Pour the pre-mixed paint into the oil tank 3, control the air pump to start, so that the air pump starts to work and stores compressed air in the air tank. Before the spraying operation, the parameters of the flow control valve 6 can be preset or adjusted in real time, so that the oil circuit can supply an appropriate amount of paint to the spray gun 2. At this time, the solenoid valve 8 is in the closed state, and the entire spraying system is not working.

[0030] The climbing and transporting robot is started and runs in a certain direction. When it reaches the set running speed, the solenoid valve 8 opens and the compressed gas flows into the spray gun 2 along the air pipe 7. At this time, the paint outlet of the spray gun 2 opens and the paint is sprayed onto the surface of the metal building, thus completing the spraying work on the treated surface.

[0031] The spray gun 2's paint outlet requires compressed gas to open. The working status of the four spray guns 2 can be controlled by the opening and closing of the solenoid valve 8. When the solenoid valve 8 is closed, the corresponding spray gun 2 stops working, and no paint will spray from the spray gun 2's paint outlet.

[0032] The amount of paint sprayed by the spray gun 2 can be controlled by adjusting the oil supply of the flow control valve 6. For the position where the two spray guns 2 interact, the oil supply of the flow control valve 6 can be reduced to ensure that the coating thickness in the interaction area meets the requirements, which greatly improves the quality and efficiency of spraying.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spraying system suitable for climbing robots, comprising a spray gun, an oil tank, and a compressed air source mounted on the climbing robot, wherein the input end of the spray gun includes an air inlet and an oil inlet, characterized in that: A flow control valve is installed on the oil pipe between the oil tank and the oil inlet, and a solenoid valve is installed on the air pipe between the compressed air source and the air inlet. The input terminals of the solenoid valve and the flow control valve are both connected to the output terminal of the climbing robot's control module.

2. The spraying system for climbing robots according to claim 1, characterized in that, The spray gun is provided in multiple parts, and each spray gun is equipped with a corresponding solenoid valve and a flow control valve.

3. The spraying system for climbing robots according to claim 1, characterized in that, The spray gun is connected to the climbing robot via a spraying bracket.

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