Automatic ultrasonic spraying device

Abstract

The utility model discloses an automatic ultrasonic spraying device which comprises a base, a mechanical arm capable of moving at multiple angles is installed on the top of the base, a nozzle is installed on the top of the mechanical arm, the nozzle is used for spraying spraying materials to the surface of a workpiece, and the mechanical arm drives the nozzle to move to achieve multi-angle spraying. The material conveying module is connected to the nozzle through a material conveying pipe to provide spraying materials for the nozzle, and a flow control valve is arranged on the material conveying pipe; the power module is connected to the nozzle through a conveying pipe to provide air pressure for the nozzle, and a pressure regulating valve is arranged on the conveying pipe; the control module is electrically connected with the pressure regulating valve, the flow control valve and the mechanical arm and used for controlling the flow of the spraying material, the air pressure needed by spraying and the movement track of the mechanical arm according to the spraying requirement. And the spraying platform is used for bearing a workpiece to be sprayed, and a heating mechanism is arranged in the spraying platform and used for accelerating drying and film forming of a coating. The device can improve spraying uniformity, reduce coating waste and simplify operation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of spraying, and in particular to an automated ultrasonic spraying device. Background Technology

[0002] Ultrasonic spraying is an advanced surface treatment method that uses high-frequency ultrasonic energy to atomize liquid coatings into extremely small droplets, which are then uniformly sprayed onto the surface of a target substrate through a nozzle. Due to its advantages such as high efficiency, energy saving, and environmental friendliness, this technology has been widely applied in fields such as fuel cell electrode coating, catalytic coating, nanomaterial spraying, and high-precision coating manufacturing.

[0003] Despite the numerous advantages of ultrasonic spraying technology, existing ultrasonic spraying equipment still faces some technical and operational challenges. Currently, most ultrasonic spraying equipment relies on manual setting and adjustment of parameters such as spraying distance, angle, and speed. This method is prone to human error, affecting the consistency and repeatability of the spraying effect. Furthermore, the lack of intelligent control systems to support complex spraying path planning and real-time feedback adjustment functions limits the application scope of ultrasonic spraying technology in precision manufacturing.

[0004] Therefore, this solution proposes an automated ultrasonic spraying device, which aims to combine the advantages of ultrasonic spraying technology and significantly improve the quality, efficiency, and adaptability of spraying operations. Utility Model Content

[0005] The purpose of this invention is to provide an automated ultrasonic spraying device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automated ultrasonic spraying device, comprising: a base with a multi-angle movable robotic arm mounted on its top, a nozzle mounted on the top of the robotic arm for spraying coating material onto the workpiece surface, the robotic arm driving the nozzle to achieve multi-angle spraying; a material conveying module connected to the nozzle via a material conveying pipe for supplying coating material to the nozzle, wherein the material conveying pipe is equipped with a flow control valve; a power module connected to the nozzle via a delivery pipe for supplying air pressure to the nozzle, wherein the delivery pipe is equipped with a pressure regulating valve; a control module electrically connected to the pressure regulating valve, the flow control valve, and the robotic arm respectively, for controlling the flow rate of the coating material, the required air pressure for spraying, and the movement trajectory of the robotic arm according to the spraying requirements; and a spraying platform for supporting the workpiece to be sprayed, wherein a heating mechanism is provided within the spraying platform to accelerate the drying and film formation of the coating after spraying.

[0007] Preferably, the base includes a fixed base and a sliding base, and the sliding base is provided with a guide groove; the automated ultrasonic spraying device also includes a slide rail, which is fixedly mounted on the spraying platform and matches the guide groove of the sliding base. The slide rail is provided with a conveyor belt that connects to the sliding base, and the sliding base is driven by a motor to slide along the slide rail to realize the horizontal displacement of the robotic arm and the nozzle.

[0008] Preferably, the robotic arm includes a robotic arm body, a first rotary joint, and a second rotary joint; the robotic arm body is fixedly connected to the first rotary joint, the first rotary joint is mounted on the base to drive the robotic arm body to rotate horizontally in the circumferential direction, the end of the robotic arm body is provided with the second rotary joint, and the nozzle is fixedly mounted on the second rotary joint.

[0009] Preferably, the first rotary joint is a slewing bearing, which is fixed to the top of the base, and the first motor is connected to the slewing bearing through a reducer to achieve rotational movement; the second rotary joint is a rotary shaft, the nozzle is mounted on the rotary shaft, and the second motor is connected to the rotary shaft through a coupling to drive the nozzle to move.

[0010] Preferably, the nozzle is a smart ultrasonic nozzle, which includes a feeding chamber, an atomizing chamber and a spraying chamber connected in sequence. The feeding chamber is connected to the conveying pipe. A piezoelectric ceramic transducer is provided in the atomizing chamber to atomize the coating material. The atomized coating material is sprayed out through the spraying chamber.

[0011] Preferably, the feeding module is a peristaltic pump or a precision syringe propulsion pump, and the discharge end of the peristaltic pump or precision syringe propulsion pump is connected to the feeding pipe.

[0012] Preferably, the power module is a combined high-pressure pump or an air compressor, which is connected to the intelligent ultrasonic nozzle via a delivery pipe.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] 1. Through precise flow control and ultrasonic spraying technology, the uniformity of spraying and the quality of coating are significantly improved;

[0015] 2. Equipped with a programmable logic controller and real-time monitoring function, it realizes automated control of complex spraying paths and reduces human intervention;

[0016] 3. The multi-degree-of-freedom robotic arm design enables the spraying device to adapt to workpieces of various shapes and sizes, and to perform high-precision and complex spraying. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the slide rail and conveyor belt in this utility model.

[0021] Figure 4 This is a schematic diagram of a serpentine spraying method provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a spiral spraying method provided in an embodiment of the present invention.

[0023] In the diagram: 1. Base; 11. Fixed base; 12. Translation base; 121. Guide groove; 2. Robotic arm; 21. Main body of the robotic arm; 22. First rotary joint; 23. Second rotary joint; 3. Nozzle; 4. Material conveying module; 5. Material conveying pipe; 6. Power module; 7. Conveying pipe; 8. Control module; 9. Slide rail; 91. Conveyor belt; 10. Spraying platform. Detailed Implementation

[0024] The technical solutions of the embodiments of this application 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Example: As shown in the figure, Figure 1The diagram shows a schematic of an automated ultrasonic spraying device according to an embodiment of the present invention. It includes: a base 1 with a multi-angle movable robotic arm 2 mounted on its top. A nozzle 3 is mounted on the top of the robotic arm 2, used to spray coating material onto the workpiece surface. The robotic arm 2 drives the nozzle 3 to move, achieving multi-angle spraying; a material conveying module 4 connected to the nozzle 3 via a material conveying pipe 5 for supplying coating material to the nozzle 3, wherein the material conveying pipe 5 is equipped with a flow control valve; a power module 6 connected to the nozzle 3 via a delivery pipe 7 for supplying air pressure to the nozzle 3, wherein the delivery pipe 7 is equipped with a pressure regulating valve; a control module 8 electrically connected to the pressure regulating valve, the flow control valve, and the robotic arm 2, used to control the flow rate of the coating material, the required air pressure for spraying, and the movement trajectory of the robotic arm 2 according to spraying requirements; and a spraying platform 10 for supporting the workpiece to be sprayed, wherein a heating mechanism is provided within the spraying platform to accelerate the drying and film formation of the sprayed coating.

[0026] Specifically, base 1, serving as the fundamental support platform for the entire device, is made of high-strength materials, possessing excellent shock resistance and stability, and capable of bearing the weight of robotic arm 2 and other equipment. Robotic arm 2 has multiple joints, supporting complex multi-axis movements and allowing adjustment of the nozzle angle and position as needed. Nozzle 3 is used to evenly spray coating material onto the workpiece surface. Material feeding module 4 provides a stable supply of coating material to the nozzle. Material feeding pipe 5 connects to the nozzle to ensure smooth transfer of coating material from the material feeding module to the nozzle. A flow control valve is installed on the material feeding pipe and regulated by control module 8 to ensure the stability and accuracy of the coating flow rate. Power module 6 provides the necessary air pressure support to the nozzle to achieve coating atomization and spraying. Delivery pipe 7 connects to the nozzle to ensure effective transmission of air pressure to the nozzle. A pressure regulating valve is installed on the delivery pipe and regulated by control module 8 to ensure that the air pressure remains within a preset range. Control module 8, as the control center of the entire system, is responsible for coordinating and controlling the operation of each component, and can precisely control the flow rate of the coating material, the required air pressure for spraying, and the movement trajectory of robotic arm 2.

[0027] As an optional embodiment, the control module 8 is specifically a programmable logic controller (PLC). The PLC controls the motors in the robotic arm 2 through a motion planning algorithm to control the movement trajectory of the robotic arm. The motion planning algorithm takes into account factors such as the robotic arm's speed limits, acceleration limits, and collision avoidance, optimizing the path selection from the starting point to the target point. Users can pre-set the spraying path through the PLC according to the specific shape of the workpiece and the spraying requirements. These paths can be straight lines, arcs, or other complex three-dimensional curves, depending on the surface of the workpiece to be covered.

[0028] As an optional embodiment, nozzle 3 is specifically an intelligent ultrasonic nozzle. The intelligent ultrasonic nozzle includes a feeding chamber, an atomizing chamber, and a spraying chamber connected in sequence. The feeding chamber is connected to the conveying pipe. A piezoelectric ceramic transducer is provided in the atomizing chamber to atomize the coating material. The atomized coating material is sprayed out through the spraying chamber. The piezoelectric ceramic transducer is electrically connected to the programmable logic controller. The programmable logic controller controls the atomization effect of the coating material by adjusting the operating frequency and amplitude of the piezoelectric ceramic transducer through a high-frequency electrical signal.

[0029] As an optional embodiment, the material conveying module 4 is specifically a peristaltic pump or a precision syringe propulsion pump. The discharge end of the peristaltic pump or precision syringe propulsion pump is connected to the material conveying pipe 5. The programmable logic controller dynamically adjusts the opening of the flow control valve on the material conveying pipe 5 through a PID control algorithm, thereby achieving precise control of the paint flow rate.

[0030] As an optional embodiment, the power module 6 is specifically a combined high-pressure pump or air compressor, which is connected to the intelligent ultrasonic nozzle 3 through the delivery pipe 7 to provide the necessary power for the spraying process, such as high-pressure air or hydraulic power, to ensure that the nozzle can efficiently atomize and spray the coating material. The programmable logic controller dynamically adjusts the opening of the pressure regulating valve on the delivery pipe 7 through a PID control algorithm to ensure that the air pressure is always kept within a preset range.

[0031] As an optional embodiment, the spraying platform 10 is a key component of the automated ultrasonic spraying device, used to accelerate the drying and curing process of the coating on the workpiece surface after spraying. The spraying platform is equipped with a heating mechanism, such as an electric heating wire, infrared radiation, or hot air circulation, the specific selection of which depends on the application requirements and the characteristics of the workpiece material, and is not limited in this embodiment.

[0032] For example, the user inputs or selects the corresponding spraying parameters (such as paint flow rate, air pressure, spraying path, etc.) into the programmable logic controller (PLC) according to the specific spraying task. The PLC generates the optimal motion trajectory according to the preset path, driving the robotic arm 2 to move along the predetermined trajectory. The material feeding module 4 provides a stable supply of paint to the nozzle 3 through the material feeding pipe 5, while the power module 6 provides appropriate air pressure support through the delivery pipe 7, ensuring that the paint can be smoothly atomized and sprayed onto the workpiece surface. The PLC monitors various parameters in real time during the spraying process to ensure the consistency and stability of the spraying quality. If any abnormality is detected (such as insufficient flow rate, excessive air pressure, position deviation, etc.), the PLC will immediately adjust the opening of the flow control valve or pressure regulating valve through the PID control algorithm to ensure that all parameters are always kept within the preset range, or adjust the movement of the robotic arm 2 through the motion planning algorithm. After spraying is completed, the coating is treated by the heating mechanism on the spraying platform, and quickly dries and forms a film.

[0033] In this embodiment of the invention, a base 1 is provided, on which a multi-angle movable robotic arm 2 is mounted. A nozzle 3 is mounted on the top of the robotic arm 2, and the nozzle 3 is used to spray coating material onto the workpiece surface. The robotic arm 2 drives the nozzle 3 to move, achieving multi-angle spraying. A material conveying module 4 is connected to the nozzle 3 via a material conveying pipe 5 to supply coating material to the nozzle 3. The material conveying pipe 5 is equipped with a flow control valve. A power module 6 is connected to the nozzle 3 via a delivery pipe 7 to supply air pressure to the nozzle 3. The delivery pipe 7 is equipped with a pressure regulating valve. A control module 8 is electrically connected to the pressure regulating valve, the flow control valve, and the robotic arm 2, respectively, to control the flow rate of the coating material, the required air pressure for spraying, and the movement trajectory of the robotic arm 2 according to the spraying requirements. A spraying platform 10 is used to support the workpiece to be sprayed. A heating mechanism is provided inside the spraying platform to accelerate the drying and film formation of the coating after spraying. The synergistic effect of the various components in the automated ultrasonic spraying device enables high-precision and high-efficiency spraying operations. It is particularly suitable for applications such as fuel cell electrode coating, catalytic coating, nanomaterial spraying, and high-precision coating manufacturing, meeting the demand for high-quality coatings in modern industry and high-tech fields.

[0034] like Figures 1 to 3 As shown, in another preferred embodiment of the present invention, the automated ultrasonic spraying device further includes a slide rail 9, which is fixedly mounted on the spraying platform 10 and matches the guide groove 121 of the translation seat 12. The slide rail 9 is provided with a conveyor belt 91 connected to the bottom of the translation seat 12 to drive the translation seat 12 to slide along the slide rail 9, thereby realizing the horizontal displacement of the robotic arm 2 and the nozzle 3.

[0035] Specifically, the slide rail 9 provides a stable and precise path, ensuring that the translation seat 12 can move horizontally in a preset direction. This helps maintain the accuracy of the nozzle position during spraying, thereby ensuring the consistency of spraying quality. The conveyor belt is located inside the slide rail 9 and connected to the bottom of the translation seat 12. As a power transmission medium, it drives the spraying device to move along the slide rail 9 under the action of the motor.

[0036] Optionally, the motor can control the speed and direction of the conveyor belt according to the instructions issued by the programmable logic controller to adjust the position of the translation seat 12. This electronic control method allows the system to flexibly change the speed and final position of the translation seat according to different spraying requirements, thereby improving the system's adaptability and work efficiency.

[0037] In this example, the slide rail 9 is mounted on the spraying platform 10, allowing the workpiece to be placed above the spraying platform for rapid drying immediately after spraying. This integrated design not only saves space but also improves production efficiency.

[0038] In this embodiment of the invention, by introducing a design that combines the slide rail 9 and the translation seat 12, the automated ultrasonic spraying device can further expand its horizontal working range while maintaining its original vertical and multi-angle spraying functions. This provides a linear movement path for the robotic arm, ensuring smooth movement and accurate positioning of the robotic arm. It not only increases the spraying range but also allows for full coverage of larger workpieces. At the same time, this design also improves the spraying accuracy because very fine position adjustments can be achieved through programmable control.

[0039] like Figure 2 As shown, in another preferred embodiment of the present invention, the robotic arm 2 includes a robotic arm body 21, a first rotary joint 22 and a second rotary joint 23, and through the coordinated work of these components, the nozzle 3 is able to make complex and precise movements in three-dimensional space.

[0040] Specifically, the main body of the robotic arm is fixedly connected to the first rotary joint, the first rotary joint is mounted on the base to drive the main body of the robotic arm to rotate horizontally, the end of the main body of the robotic arm is provided with a second rotary joint, and the nozzle is fixedly mounted on the second rotary joint.

[0041] Specifically, the first rotary joint 22 is mounted on the base 1 as a connection point between the robotic arm and the base. The first planar joint in the main body 21 of the robotic arm is fixedly connected to the first rotary joint 22, allowing the robotic arm 2 to rotate around the vertical axis (Z-axis). The built-in motor is responsible for driving the rotation of the first rotary joint, enabling the robotic arm 2 to rotate freely on the horizontal plane and expanding the spraying range.

[0042] Specifically, the end of the robotic arm body 21 is provided with the second rotary joint 23. The second rotary joint 23 is installed at the end of the third planar joint of the robotic arm body. The nozzle 3 is fixedly installed on the second rotary joint 23, allowing the nozzle 3 to rotate around another axis. The built-in motor is responsible for driving the rotation of the second rotary joint 23, so that the nozzle can freely adjust the angle on the vertical plane to adapt to different workpiece shapes and spraying requirements.

[0043] As an optional embodiment, the first rotary joint 22 is a slewing bearing, which is fixed to the top of the base 1. A first motor is connected to the slewing bearing via a reducer to achieve rotational movement. Specifically, the slewing bearing, fixed to the top of the base 1, can withstand large radial and axial loads. The first motor, connected to the slewing bearing via a reducer, provides power to drive the rotation of the slewing bearing, allowing the robotic arm to rotate freely on the horizontal plane and expanding the spraying range.

[0044] As an optional embodiment, the second rotary joint 23 is a rotary shaft, the nozzle 3 is mounted on the rotary shaft, and a second motor is connected to the rotary shaft via a coupling to drive the nozzle 3 to move.

[0045] As a support and rotating component for nozzle 3, it allows nozzle 3 to rotate around a specific axis (such as the Y-axis or X-axis), thereby adjusting the spray angle. The coupling is used to transmit power from the second motor to the rotating shaft, ensuring efficient and stable power transmission. The second motor provides power to drive the rotation of the rotating shaft, allowing nozzle 3 to freely adjust its angle in the vertical plane.

[0046] As an optional embodiment, all motors (including the motors driving the planar joints of the robotic arm body 21, the first motor of the first rotary joint 22, and the second motor of the second rotary joint 23) are controlled by the control module 8, i.e., the programmable logic controller (PLC). The PLC integrates advanced motion planning algorithms, enabling precise control of the motion trajectory of each joint of the robotic arm. Each motor executes precise motion control according to the PLC's instructions, and each motor is equipped with an encoder to provide real-time position information to the PLC, forming a closed-loop control to ensure the accuracy of the robotic arm 2's motion trajectory.

[0047] For example, when using an automated ultrasonic spraying device, the object to be sprayed is fixed on the platform, using clamps or other securing devices to ensure it is stable and does not move. The programmable logic controller (PLC) is started, matrix mode is selected, and the length and width dimensions of the rectangle are entered. The spraying speed, spray volume, and spraying path are set. For example, as... Figure 4As shown, a zigzag path using the serpentine spraying method can be selected to ensure uniform coverage of the entire surface; or, as shown... Figure 5 As shown, the spiral spraying method is selected, and each spiral path is sprayed sequentially to ensure uniform coverage of the entire circular surface. The robotic arm is activated and begins to move according to the set spraying path. Intelligent ultrasonic nozzles atomize the liquid paint into tiny droplets, spraying them evenly onto the object's surface. Simultaneously, a peristaltic pump or precision injector pump and a combined high-pressure pump or air compressor work together to ensure the paint is sprayed onto the workpiece surface at the appropriate flow rate and pressure. The spraying effect is monitored in real time during the process. If any unevenness or omissions are found, spraying can be paused for adjustments. The spraying speed and amount are adjusted according to the actual situation to achieve the best spraying effect. During spraying, a spraying platform is used to accelerate paint drying and film formation. After spraying and drying, the sprayed object is removed for subsequent processing or packaging.

[0048] In this example, through this multi-joint design, the robotic arm 2 can achieve complex multi-angle and multi-degree-of-freedom movements, ensuring that the nozzle 3 can move flexibly in three-dimensional space to meet the needs of various spraying tasks. For example, in the process of coating fuel cell electrodes, the robotic arm can precisely control the angle and position of the nozzle to ensure the consistency and uniformity of the coating thickness; in the spraying of nanomaterials, it can achieve fine spraying of tiny areas, improving the quality and functionality of the coating.

[0049] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An automated ultrasonic spray device, characterized in that, include: The base has a multi-angle movable robotic arm mounted on its top. The top of the robotic arm is equipped with a nozzle for spraying coating material onto the surface of the workpiece. The robotic arm drives the nozzle to move to achieve multi-angle spraying. A material feeding module is connected to the nozzle via a material feeding pipe for supplying spraying material to the nozzle, wherein the material feeding pipe is equipped with a flow control valve; A power module is connected to the nozzle via a delivery pipe for supplying air pressure to the nozzle, wherein the delivery pipe is equipped with a pressure regulating valve; The control module is electrically connected to the pressure regulating valve, the flow control valve and the robotic arm respectively, and is used to control the flow rate of the spraying material, the air pressure required for spraying and the movement trajectory of the robotic arm according to the spraying requirements. A spraying platform is used to hold the workpiece to be sprayed. The spraying platform is equipped with a heating mechanism to accelerate the drying and film formation of the coating after spraying.

2. The automated ultrasonic spraying device according to claim 1, characterized in that: The base includes a fixed base and a sliding base. The sliding base is provided with a guide groove. The automated ultrasonic spraying device also includes a slide rail. The slide rail is fixed on the spraying platform and matches the guide groove of the sliding base. The slide rail is provided with a conveyor belt that connects to the sliding base. The sliding base is driven by a motor to slide along the slide rail to realize the horizontal displacement of the robotic arm and the nozzle.

3. An automated ultrasonic spraying device according to claim 1, wherein: The robotic arm includes a robotic arm body, a first rotary joint, and a second rotary joint. The robotic arm body is fixedly connected to the first rotary joint, which is mounted on the base to drive the robotic arm body to rotate horizontally. The end of the robotic arm body is provided with the second rotary joint, and the nozzle is fixedly mounted on the second rotary joint.

4. An automated ultrasonic spraying device according to claim 3, wherein: The first rotary joint is a slewing bearing, which is fixed to the top of the base. A first motor is connected to the slewing bearing through a reducer to achieve rotational movement. The second rotary joint is a rotary shaft, on which the nozzle is mounted. A second motor is connected to the rotary shaft through a coupling to drive the nozzle to move.

5. An automated ultrasonic spraying device according to claim 1, characterized in that: The nozzle is an intelligent ultrasonic nozzle, which includes a feeding chamber, an atomizing chamber, and a spraying chamber connected in sequence. The feeding chamber is connected to the conveying pipe. A piezoelectric ceramic transducer is provided in the atomizing chamber to atomize the coating material. The atomized coating material is sprayed out through the spraying chamber.

6. An automated ultrasonic spraying device according to claim 1, wherein: The feeding module is a peristaltic pump or a precision syringe propulsion pump, and the discharge end of the peristaltic pump or precision syringe propulsion pump is connected to the feeding pipe.

7. An automated ultrasonic spraying device according to claim 5, wherein: The power module is a combined high-pressure pump or air compressor, which is connected to the intelligent ultrasonic nozzle through a delivery pipe.

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