Spraying device capable of automatically controlling spraying angle

Abstract

The invention discloses a spraying device capable of automatically controlling a spraying angle, relates to the technical field of spraying auxiliary devices, and solves the technical problems that a heavier paint spraying device is difficult to carry during spraying of an unmanned aerial vehicle and multi-direction adjustable spraying is difficult to carry out. Comprising a spraying mechanism and a rotating mechanism, and the spraying mechanism communicates with the rotating mechanism in a butt joint mode; the spraying mechanism comprises a coating tank, a turbine flowmeter, a first motor, an impeller and a nozzle; the rotating mechanism comprises a sphere, a fixing support, a second motor, a spraying rod, a steering engine, a first circular ring and a second circular ring. The method can effectively prevent the unmanned aerial vehicle from frequently adjusting the flight position and angle due to spraying dead corners or blind areas in an operation area, and ensures that the spraying effect reaches the optimal state by intelligently selecting the optimal rotation angle according to the actual spraying environment. Meanwhile, the whole device is simple in structural design, simple and convenient in control scheme and light in weight, and does not bring excessive burden to the unmanned aerial vehicle, so that the working efficiency and the flight stability are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of spraying auxiliary devices, and in particular is a spraying device capable of automatically controlling a spraying angle. Background Art

[0002] Steel is exposed to the elements for a long time and is easily corroded in harsh environments such as rain, snow and sun exposure, which poses certain safety hazards. Traditional manual spraying is inefficient, easily causing paint waste and uneven spraying, and there are safety risks in high-altitude operations. With the development of drone technology, it can quickly reach the area to be sprayed, reducing the time and cost of manual spraying and avoiding people working in dangerous environments.

[0003] The existing high-altitude spraying operation requires that the spray rod carried by the drone is facing the wall. In actual situations, the spraying angle of the spray rod carried by the drone is fixed, while the steel frame has horizontal and vertical settings. During the flight of the drone, the mechanism for actively switching the spraying angle is still imperfect, and it is difficult to switch the spraying angle during high-altitude spraying. In addition, the heavy weight of the drone spraying device will affect the stability and endurance of the drone flight, reduce the overall performance and carrying flexibility, and thus reduce the spraying efficiency of the steel. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a spraying device that automatically controls the spraying angle.

[0005] A spraying device for automatically controlling a spraying angle, comprising:

[0006] A spraying mechanism and a rotating mechanism, the spraying mechanism and the rotating mechanism are butt-connected and connected;

[0007] The spraying mechanism includes a paint tank, a turbine flow meter, a first motor, an impeller and a nozzle;

[0008] The rotating mechanism includes a sphere, a fixing bracket, a second motor, a spray rod, a steering gear, a first ring and a second ring;

[0009] The paint spraying pipe of the spraying mechanism directly passes through the spraying rod and extends to the nozzle. The second motor is installed outside the fixed bracket, and the steering gear is installed below the fixed bracket.

[0010] Preferably, a sealing tube is provided at the right end of the first motor, and the motor shaft provided at the right end of the first motor is fixedly connected with an impeller, and the impeller is installed in the sealing tube. The sealing tube has three through holes, and the outer end of the motor shaft passes through the through holes. A discharge port is opened at the right end of the sealing tube.

[0011] Preferably, the joint of the discharge port is provided with a paint pipe passing through the sphere and the spray rod and connected to the nozzle.

[0012] Preferably, the inlet of the turbine flowmeter is vertically connected to the outlet of the coating tank, and the outlet of the turbine flowmeter is directly connected to the feed port.

[0013] Preferably, the fixed bracket is a cross-shaped bracket, a fixed shaft is arranged at the center of the inner surface of the fixed bracket, one end of the fixed shaft is connected to the middle sphere, a rotating shaft is arranged on the front and rear surfaces of the sphere, and the two rotating shafts are rotatably connected to the front and rear surfaces of the fixed bracket through the arranged bearings.

[0014] Preferably, a first circular ring distributed longitudinally is provided on the right side of the sphere, the two rotating shafts are respectively fixedly connected to the two ends of the first circular ring, a second circular ring is vertically provided outside the first circular ring, and rotating shafts are respectively provided between the two ends of the second circular ring and the upper and lower surfaces of the fixed bracket.

[0015] Preferably, the second motor is fixed to the front surface of the fixed bracket, the output shaft of the second motor is connected to a coupling, the other end of the coupling is connected to one of the rotating shafts, and the output end of the servo passes through the lower surface of the fixed bracket and is connected to the second ring.

[0016] Preferably, an arc-shaped sliding block is fixedly connected to the left end of the spray rod, and the spray rod is located at the center position where the first circular ring and the second circular ring intersect.

[0017] Preferably, the surfaces of the first circular ring and the second circular ring are both provided with openings along the arc length direction thereof, and the spray rod passes through the intersection of the two openings.

[0018] Preferably, a groove is provided on the right side of the sphere, and an arc-shaped slider is provided on the left end of the spray rod, and the arc-shaped slider slides in the groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention can effectively prevent the UAV from frequently adjusting its flight position and angle due to spraying dead angles or blind spots in the operating area, and ensures that the spraying effect reaches the best state by intelligently selecting the best rotation angle according to the actual spraying environment. At the same time, the entire device has a streamlined structural design, a simple control scheme, and is lightweight, which will not bring too much burden to the UAV, thereby improving operating efficiency and flight stability.

[0021] (2) The present invention combines a turbine flow meter with a feed port to ensure that the flow rate is maintained within an optimal range, monitors the flow data in real time, and adjusts the output as needed to ensure that the system is always in the best working state. The operating parameters of the equipment are automatically adjusted according to the real-time flow data, which can optimize the use efficiency of the turbine flow meter, thereby reducing paint waste and improving the spraying effect of the overall system. As the paint enters the feed port and the spraying mechanism operates, the paint is sprayed out from the nozzle.

[0022] (3) The present invention combines the first circular ring, the second circular ring, the spray rod, the arc-shaped slider and the groove, which support the spray rod while cooperating with each other without affecting the rotation of the spray rod, thereby expanding the spraying range of the nozzle and improving the spraying efficiency and convenience of the spraying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of the spraying device in this embodiment;

[0024] Figure 2 It is a structural schematic diagram of the spraying mechanism in this example;

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the spraying mechanism in this embodiment;

[0026] Figure 4 is a schematic structural diagram of the steering mechanism in this embodiment;

[0027] Figure 5 is an enlarged schematic diagram of the steering mechanism assembly in this embodiment;

[0028] In the figure: 1. paint tank; 2. turbine flowmeter; 3. first motor; 4. sphere; 5. second motor; 6. spray rod; 7. nozzle; 8. servo; 31. motor shaft; 32. impeller; 33. feed inlet; 34. discharge outlet; 21. fixed bracket; 22. first ring; 23. second ring; 41. coupling; 42. arc slider; 43. rotating shaft; 44. groove. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] Please refer to the figure, the present application provides a spraying device for automatically controlling the spraying angle, comprising:

[0032] A spraying mechanism and a rotating mechanism, the spraying mechanism and the rotating mechanism are butt-connected and connected;

[0033] The spraying mechanism includes a coating tank 1, a turbine flowmeter 2, a first motor 3, an impeller 32 and a nozzle 7;

[0034] The rotating mechanism includes a sphere 4, a fixing bracket 21, a second motor 5, a spray rod 6, a steering gear 8, a first ring 22 and a second ring 23;

[0035] The paint spray pipe of the spraying mechanism directly passes through the spray rod 6 and extends to the nozzle 7. The second motor 5 is installed on the outside of the fixed bracket 21, and the steering gear 8 is installed below the fixed bracket 21. The second motor 5 realizes the up and down swing of the spray rod 6, and the steering gear 8 realizes the left and right swing of the spray rod 6. If the two operate at the same time, the spray rod 6 can realize the swing at any angle.

[0036] In this embodiment, preferably, the fixed bracket 21 is a cross-shaped bracket, and a fixed axis is arranged at the center of the inner surface of the fixed bracket 21, one end of the fixed axis is connected to the middle sphere 4, and a cross-shaped groove is provided on the surface of the middle sphere 4 close to the fixed axis, and a limiting slider is arranged at one end of the fixed column, and the limiting slider slides in the cross-shaped groove, and the sliding fit between the two will not disengage, which will not affect the subsequent up and down and front and back rotation of the sphere 4, and can also support the sphere 4, and the front and rear surfaces of the sphere 4 are provided with rotating shafts 43, and the two rotating shafts 43 are rotatably connected to the front and rear surfaces of the fixed bracket 21 through the provided bearings.

[0037] In this embodiment, preferably, a longitudinally distributed first ring 23 is provided on the right side of the sphere 4, two rotating shafts 43 are respectively fixedly connected to the two ends of the first ring 23, a second ring 22 is vertically provided on the outside of the first ring 23, and rotating shafts are respectively provided between the two ends of the second ring 22 and the upper and lower surfaces of the fixed bracket 21.

[0038] In this embodiment, preferably, the second motor 5 is fixed on the front surface of the fixed bracket 21, the output shaft of the second motor 5 is connected with a coupling 41, the other end of the coupling 41 is connected to one of the rotating shafts 43, so that the second motor 5 can drive the sphere 4 to rotate up and down, and the output end of the servo 8 passes through the lower surface of the fixed bracket 21 and is connected to the second ring 22.

[0039] In summary, when in use, the turbine flowmeter 2 controls the amount of paint entering, and cooperates with the first motor 3 to form a high-pressure airflow to pressurize the injected paint, so that the paint quickly enters the paint pipe and then enters the spray rod 6. When the second motor 5 drives the sphere 4 to rotate up and down around the rotating shaft 43, the spray rod 6 is driven to rotate accordingly, thereby changing the spraying angle of the nozzle 7 in the vertical direction. Similarly, the steering gear 8 is used to drive the sphere 4 to rotate in the horizontal direction as a whole, thereby changing the angle of the spray rod 6 in the horizontal direction. During the whole process, the angle of the nozzle 7 can be adjusted at will according to the steel material to expand the range of the nozzle 7 spraying processing.

[0040] Embodiment 2

[0041] Reference Figure 1 - Figure 4 , which is the second embodiment of the present invention, and this embodiment is different from the previous embodiment.

[0042] In this embodiment, preferably, a sealing tube is provided at the right end of the first motor 3, and a motor shaft 31 provided at the right end of the first motor 3 is fixedly connected with an impeller 32. The impeller 32 is installed in the sealing tube. The sealing tube has three through holes, and the outer end of the motor shaft 31 passes through the through holes. The first motor 3 drives the impeller 32 to rotate by electric energy. The impeller 32 accelerates the flow of air and generates airflow during rotation. The increase in airflow speed can form a higher air pressure. This airflow will be guided through the air pipe, and the paint enters the spraying area. A discharge port 34 is provided at the right end of the sealing tube.

[0043] In this embodiment, preferably, the joint of the discharge port 34 is provided with a paint tube that passes through the sphere 4 and the spray rod 6 and is connected to the nozzle 7. The paint tube also passes through the fixed shaft and the limiting slider, and the material of the paint tube can adapt to the rotation of the sphere 4, etc.

[0044] In this embodiment, preferably, the inlet of the turbine flowmeter 2 is vertically connected to the outlet of the coating tank 1 , and the outlet of the turbine flowmeter 2 is directly connected to the feed port 33 .

[0045] In summary, the turbine flowmeter 2 reads the analog current signal of the turbine flowmeter 2 through the analog input module of the PLC: 4-20mA, and the analog signal is converted into a flow value through mathematical operations in the PLC program. The output of the turbine flowmeter 2 is usually in the flow range of 0% to 100%. As the flow increases, the output current signal changes linearly. The setting parameters of the turbine flowmeter 2 are adjusted by the PLC to ensure that the flow is maintained within the optimal range. The flow data is monitored in real time, and the output is adjusted as needed to ensure that the system is always in the best working state. The operating parameters of the equipment (such as the speed of the first motor 3) are automatically adjusted according to the real-time flow data, which can optimize the use efficiency of the turbine flowmeter 2, thereby reducing paint waste and improving the spraying effect of the overall system. As the paint enters the feed inlet 33 and the spraying mechanism operates, the paint is sprayed from the nozzle 7.

[0046] Embodiment 3

[0047] Reference Figure 1 - Figure 4 , which is the third embodiment of the present invention, and this embodiment is different from the above two embodiments.

[0048] In this embodiment, preferably, an arc-shaped slider 42 is fixedly connected to the left end of the spray rod 6, the spray rod 6 is located at the center position where the first ring 22 and the second ring 23 intersect, and the spray rod 6 can move along the openings of the first ring 22 and the second ring 23 respectively to change the angle.

[0049] In this embodiment, preferably, openings are opened on the surfaces of the first ring 22 and the second ring 23 along the arc length direction, and the second ring 23 supports the spray rod 6. In order to improve the rotation stability of the spray rod 6, the spray rod 6 passes through the intersection of the two openings.

[0050] In this embodiment, preferably, a groove 44 is opened on the right side of the sphere, and an arc-shaped slider 42 is provided at the left end of the spray rod 6. The arc-shaped slider 42 slides in the groove 44. While the arc-shaped slider 42 slides with the groove 44, it will not separate from the groove 44, thereby limiting the movement of the spray rod 6.

[0051] In summary, when the second motor 5 drives the sphere 4 to rotate up and down around the rotating shaft 43, the spray rod 6 is driven to rotate accordingly, and the rod body of the spray rod 6 slides in the opening of the first ring 22 to change the angle of the spray rod 6 in the vertical direction. Similarly, when the angle of the spray rod 6 in the horizontal direction needs to be changed, the servo 8 is used to drive the sphere 4 to rotate as a whole in the horizontal direction, thereby changing the angle of the spray rod 6 in the horizontal direction.

[0052] Embodiment 4

[0053] This embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment.

[0054] The working principle and use process of the present invention are as follows: when in use, the first motor 3 drives the impeller 32 to rotate to form a high-pressure airflow, and the high-pressure airflow causes the paint to flow outward through the paint pipe into the spray rod 6, and finally sprayed out from the nozzle 7. When spraying, the second motor 5 is used to realize the up and down swing of the spray rod 6, and the steering gear 8 realizes the left and right swing of the spray rod 6, and adjusts the working angle of the nozzle 7 to expand the spraying range and convenience of the paint.

[0055] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A spraying device for automatically controlling the spraying angle, characterized in that: include: A spraying mechanism and a rotating mechanism, the spraying mechanism and the rotating mechanism are butt-connected and connected; The spraying mechanism comprises a coating tank (1), a turbine flow meter (2), a first motor (3), an impeller (32) and a nozzle (7); The rotating mechanism comprises a sphere (4), a fixed bracket (21), a second motor (5), a spray rod (6), a steering gear (8), a first circular ring (22) and a second circular ring (23); The paint spraying pipe of the spraying mechanism directly passes through the spraying rod (6) and extends to the nozzle (7). The second motor (5) is installed outside the fixed bracket (21), and the steering gear (8) is installed below the fixed bracket (21).

2. A spraying device for automatically controlling spraying angle according to claim 1, characterized in that: A sealing tube is provided at the right end of the first motor (3); a motor shaft (31) provided at the right end of the first motor (3) is fixedly connected to an impeller (32); the impeller (32) is installed in the sealing tube; the sealing tube has three through holes, the outer ends of the motor shaft (31) pass through the through holes; and a discharge port (34) is provided at the right end of the sealing tube.

3. A spraying device for automatically controlling the spraying angle according to claim 2, characterized in that: The joint of the discharge port (34) is provided with a paint pipe which passes through the sphere (4) and the spray rod (6) and is connected to the nozzle (7).

4. A spraying device for automatically controlling spraying angle according to claim 1, characterized in that: The inlet of the turbine flowmeter (2) is vertically connected to the outlet of the coating tank (1), and the outlet of the turbine flowmeter (2) is directly connected to the feed port (33).

5. A spraying device for automatically controlling spraying angle according to claim 1, characterized in that: The fixed bracket (21) is a cross-shaped bracket. A fixed shaft is arranged at the center of the inner surface of the fixed bracket (21). One end of the fixed shaft is connected to the middle sphere (4). The front and rear surfaces of the sphere (4) are provided with rotating shafts (43). The two rotating shafts (43) are rotatably connected to the front and rear surfaces of the fixed bracket (21) via bearings.

6. A spraying device for automatically controlling the spraying angle according to claim 5, characterized in that: A first circular ring (23) is longitudinally arranged on the right side of the sphere (4), and the two rotating shafts (43) are respectively fixedly connected to two ends of the first circular ring (23); a second circular ring (22) is vertically arranged outside the first circular ring (23), and rotating shafts are respectively arranged between the two ends of the second circular ring (22) and the upper and lower surfaces of the fixed bracket (21).

7. A spraying device for automatically controlling spraying angle according to claim 6, characterized in that: The second motor (5) is fixed on the front surface of the fixed bracket (21); the output shaft of the second motor (5) is connected to a coupling (41); the other end of the coupling (41) is connected to one of the rotating shafts (43); and the output end of the steering gear (8) passes through the lower surface of the fixed bracket (21) and is connected to the second ring (22).

8. A spraying device for automatically controlling spraying angle according to claim 6, characterized in that: The left end of the spray rod (6) is fixedly connected to an arc-shaped sliding block (42), and the spray rod (6) is located at the center position where the first circular ring (22) and the second circular ring (23) intersect.

9. A spraying device for automatically controlling spraying angle according to claim 6, characterized in that: The surfaces of the first circular ring (22) and the second circular ring (23) are both provided with openings along the arc length direction thereof, and the spray rod (6) passes through the intersection of the two openings.

10. A spraying device for automatically controlling spraying angle according to claim 9, characterized in that: A groove (44) is provided on the right side of the sphere, and an arc-shaped sliding block (42) is provided on the left end of the spray rod (6), and the arc-shaped sliding block (42) is slidably located in the groove (44).

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