Ultrasonic sample stage composite water-cooled powder coating device

Abstract

The application discloses an ultrasonic sample table composite water-cooling powder coating device, and relates to the technical field of material surface treatment. The device comprises a frame body constituting a support and protection structure, a storage tank one arranged at the top of the frame body and used for storing coating powder, an ultrasonic sample table arranged in the frame body, and a water-cooling groove integrated with the outer circle of the ultrasonic sample table and used for cooling. The storage tank one is connected with the ultrasonic sample table area through a conveying pipe and a discharging pipe to convey powder. The surface of the ultrasonic sample table is provided with a texture, and the side surface is provided with a material port. The bottom of the frame body is provided with a hole, and a storage tank two used for collecting powder is arranged below the hole. The front surface of the frame body is provided with an observation window, the top of the frame body is provided with replaceable multi-arc coating target guns and a magnetron sputtering target gun, and the bottom of the frame body is connected with a protective shell. The application realizes rolling vibration, high-in and low-out, closed circulation and efficient recovery of powder, and real-time observation of operation during the powder coating process, and has the advantages of compact structure, safe operation, stable coating quality and the like.

Description

Technical Field

[0001] This invention relates to the field of material surface treatment and coating equipment technology, specifically to an ultrasonic sample stage composite water-cooled powder coating device. Background Technology

[0002] Powder coating is a common material surface treatment technology. It involves depositing a target material onto a powder surface using multi-arc evaporation and magnetron sputtering, thereby imparting special properties to the substrate such as wear resistance, corrosion resistance, electrical conductivity, and optical properties. In some precision experiments, new material development, or small workpiece processing scenarios, it is necessary to perform uniform powder coating on samples under controlled conditions.

[0003] In existing technologies, simple powder coating devices often employ methods such as spray gun application or electrostatic adsorption, but these methods have the following problems: 1. During the coating process, heat is generated from the kinetic energy conversion of powder particles and the loading of ultrasonic energy. If the sample stage temperature continues to rise, it may cause the powder to clump together due to heat, resulting in uneven coating and even affecting the properties of heat-sensitive substrates.

[0004] 2. For small sample stages, the design challenge lies in how to uniformly deliver powder to the sample surface and effectively recover unused powder to avoid waste and contamination. Simple powder dispensing methods can easily lead to uneven powder accumulation, while open designs can cause powder to scatter.

[0005] 3. During the coating process, the operator needs to observe the powder distribution, coating progress, and sample condition in real time. Many devices lack convenient observation windows, and the loading, unloading, and parameter adjustment of the sample stage are not flexible enough. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide an ultrasonic sample stage composite water-cooled powder coating device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An ultrasonic sample stage composite water-cooled powder coating device includes a frame, a storage tank, an ultrasonic sample stage, and a water-cooling tank. The frame constitutes the support and protection structure of the device. The storage tank is located on the top of the frame and is used to store coating powder. The ultrasonic sample stage is located inside the frame and is used to place the powder to be coated and apply ultrasonic vibration. The water-cooling tank is integrated into the outer ring of the ultrasonic sample stage and is used to cool the ultrasonic sample stage.

[0008] The present invention discloses an ultrasonic sample stage composite water-cooled powder coating device, which integrates ultrasonic vibration, water cooling, closed powder circulation and visual operation functions. It can effectively control the temperature during the coating process, achieve uniform powder supply and efficient recovery, and ensure the consistency of coating quality and the safety and convenience of the experimental process.

[0009] Specifically, it also includes a conveying pipe and a discharging pipe. The conveying pipe connects the storage tank to the inside of the frame and is used to convey the powder to the ultrasonic sample stage area. The discharging pipe is located at the lower end of the conveying pipe and is used to discharge the powder.

[0010] Specifically, the ultrasonic sample stage is fixed at the center of the frame, and its surface is textured to increase the vibration area of ​​the powder and the tumbling of the powder.

[0011] Specifically, the water-cooled tank is arranged around or attached to the ultrasonic sample stage, and temperature control is achieved through circulating cooling medium.

[0012] Specifically, it also includes an observation window located on the front of the frame for real-time observation of the internal coating process.

[0013] Specifically, a hole is provided on the lower end face of the frame.

[0014] Specifically, a storage tank 2 is provided below the hole for collecting powder falling from the ultrasonic sample stage.

[0015] Specifically, the top of the frame is also provided with a multi-arc coating target gun or a magnetron sputtering target gun for adding auxiliary coating materials or modifiers.

[0016] Specifically, the ultrasonic sample stage has a material outlet on its side to facilitate the discharge of powder from the ultrasonic sample stage.

[0017] Specifically, a protective shell is fixedly connected to the bottom of the frame to isolate it from the external environment and ensure operational safety.

[0018] The advantages of this invention compared to existing technologies are: 1. This invention integrates a water-cooling tank directly into the outer ring of the ultrasonic sample stage, forming a compact composite structure. This structure rapidly dissipates heat generated by the sample stage and workpiece during the coating process, effectively preventing powder deformation or substrate overheating, and ensuring temperature stability and process repeatability during the coating process.

[0019] 2. This invention achieves directional flow and recycling of powder within a closed system through a feeding system consisting of a storage tank, a conveying pipe, and a discharge pipe, and a collection system consisting of an ultrasonic sample stage, a material inlet, a hole, and a storage tank. This significantly reduces powder waste, lowers costs, and avoids dust pollution.

[0020] 3. The observation window on the front of the frame allows the operator to observe the coating process, powder distribution, and sample condition in real time and clearly without opening the device. The textured surface of the ultrasonic sample stage facilitates powder vibration area and powder tumbling, increasing the uniformity of powder coating. Attached Figure Description

[0021] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ; Figure 2 This is a three-dimensional illustration of the interior of the present invention. Figure 1 ; Figure 3 This is a three-dimensional illustration of the interior of the present invention. Figure 2 ; Figure 4 This is a three-dimensional illustration of the present invention. Figure 2 ; Figure 5 This is a three-dimensional illustration of the interior of the present invention. Figure 3 ; Figure 6 This is a three-dimensional illustration of the interior of the present invention. Figure 4 .

[0022] As shown in the figure: 1. Frame; 2. Storage tank one; 3. Conveying pipe; 4. Discharge pipe; 5. Multi-arc coating target gun or magnetron sputtering target gun pot; 6. Ultrasonic sample stage; 7. Water cooling tank; 8. Material inlet; 9. Hole; 10. Storage tank two; 11. Observation window; 12. Protective shell. Detailed Implementation

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0024] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0025] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] like Figures 1 to 6As shown, the technical solution of the present invention is as follows: an ultrasonic sample stage composite water-cooled powder coating device, mainly comprising a frame 1 serving as the main outer shell of the device, a storage tank 2 disposed on the top of the frame 1, an ultrasonic sample stage 6 located at the core position inside the frame 1, and a water-cooling tank 7 integrated into the outer ring of the ultrasonic sample stage 6. In addition, the device also includes a conveying pipe 3 and a discharge pipe 4 for powder conveying, a multi-arc coating target gun or magnetron sputtering target gun 5 for assisting in the addition of materials, a storage tank 10 and holes 9 for powder collection, an observation window 11 for observation, and a protective shell 12 for bottom protection. A discharge port 8 is also provided on the side of the ultrasonic sample stage 6.

[0027] In one embodiment of the present invention, the frame 1 serves as the supporting skeleton and main protective structure of the entire device. It is typically made of sheet metal or high-strength engineering plastic, and is constructed as a cubic or near-cubic cavity with sufficient rigidity and sealing through welding, bolting, or integral molding. The internal space of the frame 1 accommodates all core operations of the coating process. An observation window 11 is provided on its front panel, while the top panel has an interface for connecting the storage tank 2 and the multi-arc coating target gun or magnetron sputtering target gun 5. The bottom panel has holes 9 machined as a powder discharge channel. Cable interfaces, coolant pipe interfaces, etc., can be provided on the side walls or rear wall of the frame 1 as needed for connecting external equipment such as ultrasonic power supplies and cooling circulation pumps.

[0028] In one embodiment of the invention, the storage tank 2 is fixedly installed on the top outer side of the frame 1. It is a sealed container, typically cylindrical or square-shaped, with an openable sealing cap, used to store and replenish the main powder material required for coating. The bottom of the storage tank 2 is securely connected to the upper end of the conveying pipe 3 via a flange or threaded interface. A manual or electrically controlled valve can be installed at the bottom outlet of the storage tank 2 to control the powder flow rate. Its installation position is higher than the working area inside the frame 1, utilizing the powder's own gravity or vibrating components as the initial power for powder conveying.

[0029] In one embodiment of the invention, the ultrasonic sample stage 6 is the core functional component of the device. It is fixedly mounted in the center of the internal space of the frame 1 by a bracket or bolts to ensure that its working area is within the optimal viewing range of the observation window 11. The upper surface of the ultrasonic sample stage 6 is a powder-bearing surface, which is specially designed and machined with fine mesh patterns, annular grooves, or anti-slip protrusions. These patterns serve two purposes: firstly, they increase the friction with the bottom of the workpiece to be coated, preventing the powder from sliding during ultrasonic vibration; secondly, the regular patterns help guide the flow or distribution of the powder under specific processes. The ultrasonic sample stage 6 internally houses ultrasonic generating devices such as piezoelectric ceramic transducers, whose power supply and control signals are connected to an external ultrasonic generator via cables passing through the frame 1. When activated, the ultrasonic sample stage 6 generates high-frequency mechanical vibrations, which are transmitted to the workpiece and powder on it, activating, dispersing, and causing the powder particles to adhere more tightly to the powder surface.

[0030] In one embodiment of the present invention, the water-cooled tank 7 is a key structure for achieving efficient heat dissipation. It is an annular tank with a sealed cavity, directly integrated into the outer ring of the ultrasonic sample stage 6. It is tightly bonded to the lower part or sidewall of the ultrasonic sample stage 6 through metal welding, thermally conductive adhesive bonding, or integral processing, forming a "sample stage-water-cooled tank" composite. This integrated design results in an extremely short heat conduction path and low thermal resistance between the two components. The tank is connected to an external coolant circulation pump and radiator via a flexible hose. Driven by the circulation pump, the coolant continuously flows through the cavity of the water-cooled tank 7, carrying away the heat generated by the ultrasonic sample stage 6 during operation and dissipating it into the environment through the external radiator. This achieves temperature control of the sample stage 6, ensuring its constant-temperature operation.

[0031] In one embodiment of the invention, the delivery pipe 3 is a vertical or near-vertical pipe, its upper end connected to the bottom outlet of the storage tank 2, and its lower end extending into the interior of the frame 1, located directly above or to the side above the working area of ​​the ultrasonic sample stage 6. The delivery pipe 3 serves as the sole channel for powder to travel from the storage tank 2 to the working area; its inner wall must be smooth to reduce powder adhesion and blockage during transport. Its length and diameter are determined based on the device dimensions and powder flow rate requirements.

[0032] In one embodiment of the invention, the discharge pipe 4 is connected to the lower end of the conveying pipe 3. It is typically a short, lateral or oblique extension of the conveying pipe 3, with a diameter slightly larger than or equal to that of the conveying pipe 3. The end opening of the discharge pipe 4 points towards the powder-bearing area of ​​the ultrasonic sample stage 6. Its function is to guide and diffuse the powder falling from the conveying pipe 3, allowing the powder to fall onto the workpiece surface below in a relatively uniform flow or dispersion state. The shape of the opening of the discharge pipe 4 can be designed according to the requirements of coating uniformity.

[0033] In one embodiment of the present invention, the multi-arc coating target gun or magnetron sputtering target gun 5 is also fixedly mounted on the top of the frame 1, usually located next to the storage tank 2. It can be a target material of one or more different materials, and through multi-arc coating or magnetron sputtering coating, tiny particles on the target material are attached to the powder surface. Examples include binders, surfactant solutions, and powders with different properties. The arc discharge coating and magnetron sputtering coating methods of the multi-arc coating target gun or magnetron sputtering target gun 5 allow the tiny particles on the target material to mix with the main powder or act on the workpiece surface, thereby achieving a more complex composite coating process.

[0034] In one embodiment of the present invention, the observation window 11 is fixedly embedded in the front panel of the frame 1. It is made of high-transmittance tempered glass or transparent resin material, and the window area is large enough so that the operator can clearly see the entire ultrasonic sample stage 6 and its surrounding area. The observation window 11 is sealed to the frame 1 panel via a sealing ring and a clamping frame, ensuring the airtightness of the frame 1. Through this observation window 11, the operator can monitor in real time the powder's falling state, its coverage on the powder surface, the increase in coating thickness, and changes in the powder's surface, thereby adjusting process parameters in a timely manner.

[0035] In one embodiment of the invention, at least one discharge port 8 is provided on the side or edge of the ultrasonic sample stage 6. The discharge port 8 is a through hole or slot, located on the same plane as the powder-bearing surface of the sample stage. When powder is sprayed from the discharge pipe 4 onto the sample stage 6, due to ultrasonic vibration and gravity, the tiny target particles and powder adhering to the powder move towards the edge of the sample stage 6. The discharge port 8 provides a channel for these coated powder particles to leave the sample stage 6. The size and number of discharge ports 8 must ensure that the powder flows smoothly without accumulating in large quantities on the sample stage 6.

[0036] In one embodiment of the present invention, a hole 9 is provided on the bottom panel of the frame 1, directly below the ultrasonic sample stage 6. The diameter or area of ​​the hole 9 is larger than that of the outlet 8, and it is the final outlet for the powder to fall out of the internal cavity of the frame 1. The powder to be coated flowing out of the outlet 8 of the sample stage 6 will eventually settle under the action of gravity and leave the main cavity of the frame 1 through this hole 9.

[0037] In one embodiment of the invention, a storage tank 10 is provided below the frame 1, directly opposite and adjacent to the hole 9. It is a detachable container for receiving and collecting all powder falling from the hole 9. The storage tank 10 is connected to the bottom of the frame 1 or the protective shell 12 by a snap-fit, thread, or simple socket method, facilitating removal after the coating cycle for sieving, recycling, or disposal of the collected powder. This design achieves closed-loop management of the powder.

[0038] In one embodiment of the present invention, a protective shell 12 is also wrapped or connected to the bottom outer side of the frame 1. The protective shell 12 can be a complete bottom plate or a downwardly extending skirt structure. Its main functions are: first, to protect the structure at the bottom of the frame 1 from impact; second, to accommodate and hide the storage tank 10, making the device look neater; third, to add a barrier between the storage tank 10 and the external environment, preventing powder from accidentally escaping when changing the storage tank; and fourth, to provide additional stable support for the entire device.

[0039] In practical use, the operator opens the sealed cap of storage tank 2 and loads in a sufficient amount of coating powder. If necessary, replace the target material 5 in the multi-arc coating target gun or magnetron sputtering target gun. The powder to be coated is then fed onto the bearing surface of the ultrasonic sample stage 6, and the vibration of the sample stage causes the powder to vibrate. Ensure that storage tank 10 is correctly installed inside the protective housing 12. Close all hatches and check the airtightness of the device. Connect the ultrasonic generator, vacuum system, multi-arc coating or magnetron sputtering coating system, cooling circulation system, and other external equipment.

[0040] The cooling circulation system, vacuum system, and multi-arc coating or magnetron sputtering coating system are activated, and the coolant begins to circulate in the water-cooling tank 7 to pre-cool the ultrasonic sample stage 6. The valve at the bottom of the storage tank 2 is opened, and the powder falls through the conveying pipe 3 under the action of gravity and the vibrating components, sputtering onto the ultrasonic sample stage 6 from the outlet pipe 4. The ultrasonic sample stage 6 is then activated to generate high-frequency vibration. This vibration causes the powder to vibrate slightly, allowing the tiny particles sputtered by multi-arc coating or magnetron sputtering to adhere to the powder surface, achieving powder encapsulation; it also activates the powder particles, enhancing their adhesion to the surface of the tiny particles sputtered by multi-arc coating or magnetron sputtering. During this process, the operator can observe the coating process in real time through the observation window 11. Auxiliary materials in the tiny particles 5 sputtered by multi-arc coating or magnetron sputtering can be added to the coating area as needed, according to a preset program or manual control.

[0041] While the coating process is underway, the water-cooling tank 7 operates continuously, rapidly removing the heat generated by ultrasonic energy conversion and the heat generated by powder collision and friction. This ensures that the sample stage 6 and the powder area maintain a relatively constant low temperature, which is crucial for heat-sensitive materials and ensuring coating quality. The powder particles adhering to the multi-arc coating or magnetron sputtering coating are sputtered out from the feed port 8 at the edge of the ultrasonic sample stage 6 under the action of ultrasonic vibration and their own gravity, falling into the bottom of the frame 1 below. Finally, they all fall into the storage tank 10 through the bottom holes 9, completing one cycle of powder recycling. The entire process takes place within the sealed frame 1, effectively preventing dust leakage.

[0042] After the coating package arrives, first close the valve of storage tank 2 to stop the powder supply. Once no powder falls from the discharge pipe 4, shut off the ultrasonic sample stage 6. The cooling system, vacuum system, and multi-arc coating or magnetron sputtering coating system can continue to operate for a period of time to ensure sufficient cooling of the equipment. Subsequently, close the valve device, remove storage tank 10, and process the collected powder accordingly. The protective shell 12 protects the bottom structure during this process and makes the handling of storage tank 10 safer and cleaner.

[0043] In summary, this invention solves the heat dissipation problem of small-scale coating equipment by highly integrating the water-cooled tank 7 with the ultrasonic sample stage 6; through the feeding system consisting of the storage tank 2, the conveying pipe 3, and the discharge pipe 4, and the recycling system consisting of the ultrasonic sample stage 6, the discharge port 8, the hole 9, and the storage tank 10, it achieves closed-loop directional flow and circulation of powder, which is economical and environmentally friendly; the observation window 11 provides convenient process monitoring; and the frame 1 and the protective shell 12 constitute a reliable safety isolation barrier. The addition of the multi-arc coating or magnetron sputtering coating target gun 5 enhances process flexibility. All components work collaboratively under the integration of the frame 1, providing a high-performance powder coating device with constant temperature, recyclable powder, safety visibility, and convenient operation for laboratory and small-scale production.

[0044] In the description of this specification, 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 number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An ultrasonic sample stage composite water-cooled powder coating device, characterized in that, include: The frame (1) constitutes the support and protection structure of the device; Storage tank 1 (2) is set on top of frame (1) and is used to store coating powder; The ultrasonic sample stage (6) is located inside the frame (1) and is used to place the powder to be coated and apply ultrasonic vibration. A water-cooled tank (7) is integrated into the outer ring of the ultrasonic sample stage (6) and is used to cool the ultrasonic sample stage (6).

2. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: Also includes: The conveying pipe (3) connects the storage tank (2) to the inside of the frame (1) and is used to convey the powder to the ultrasonic sample stage (6) area; The discharge pipe (4) is located at the lower end of the conveying pipe (3) and is used to discharge powder.

3. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: The ultrasonic sample stage (6) is fixed at the center of the frame (1), and its surface is textured.

4. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: The water-cooled tank (7) is arranged around or attached to the ultrasonic sample stage (6), and the temperature is controlled by circulating cooling medium.

5. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that, Also includes: An observation window (11) is located on the front of the frame (1) for real-time observation of the internal coating process.

6. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: The frame (1) has a hole (9) on its lower end face.

7. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: A storage tank (10) is provided below the hole (9) for collecting powder.

8. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: The top of the frame (1) is also provided with a multi-arc coating target gun or a magnetron sputtering target gun (5) for adding auxiliary coating materials or regulators.

9. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: The ultrasonic sample stage (6) has a material outlet (8) on its side to facilitate the discharge of powder from the ultrasonic sample stage (6).

10. The ultrasonic sample stage composite water-cooled powder coating device according to claim 1, characterized in that: A protective shell (12) is fixedly connected to the bottom of the frame (1) to isolate the external environment and ensure operational safety.

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