An ultrasonic cleaning machine

Abstract

The application discloses an ultrasonic cleaning machine, which comprises a rack, a groove assembly installed in the rack, a cleaning roller mechanism rotatably installed on the groove assembly, a driving assembly for driving the cleaning roller mechanism, an upper cover assembly installed above the groove assembly on the rack, an ultrasonic generator, a driving assembly, a fan, a heat exchanger, a first filter, a second filter, an explosion-proof magnetic pump and a liquid storage assembly installed outside the groove assembly on the rack, a roller assembly and an APR screen plate assembly, the APR screen plate assembly being detachably installed outside the roller assembly, the groove assembly comprising an outer groove, two spray assemblies installed on the inner walls of the two sides of the outer groove, a lower air knife assembly and an upper air knife assembly installed above the spray assemblies in sequence. The application adopts a single-cavity continuous operation mode, does not need multiple grooves, and avoids extra power loss caused by frequent start and stop of multiple groove devices.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic cleaning equipment technology, specifically an ultrasonic cleaning machine. Background Technology

[0002] Ultrasonic cleaning typically uses two types of cleaning agents: chemical cleaning agents and water-based cleaning agents. Chemical cleaning relies on chemical action, while ultrasonic cleaning relies on physical action. The combination of these two methods allows for thorough and complete cleaning of the workpiece.

[0003] After PI printing on the panel, residual PI solution, particulate impurities, organic stains, and various process chemicals remain on the surface, requiring extremely high cleanliness. The cleaning quality directly affects the product yield of subsequent processing steps. Currently, the industry commonly uses ultrasonic cleaning equipment to clean APR boards. Common cleaning media include NMP organic solvent and DIW pure water, requiring a complete set of processes including chemical dissolution, pure water rinsing, and drying.

[0004] The announcement discloses an automatic ultrasonic cleaning machine, including a frame. From right to left, the frame is equipped with a loading and unloading mechanism, a US cleaning tank, and a storage tank. It utilizes organic solvents and DI water as cleaning media. The cleaning process leverages the physicochemical reaction between ultrasound and the cleaning agent, the localized high temperature and pressure, the stirring effect, and the generation of free radicals in the cleaning liquid (cavitation). The ultrasonic waves utilize the acceleration of the vibration of liquid molecules to achieve the cleaning purpose. This acceleration causes dirt or particles to peel off from the surface of the object being cleaned, thus achieving the cleaning objective. After cleaning, a CDA (cooling agent) is used to dry the workpiece. The device also features auxiliary rotation during the cleaning process to reduce ultrasonic voids.

[0005] Traditional multi-tank ultrasonic cleaners employ a separate tank layout, with independent tanks for different processes such as rough cleaning, fine cleaning, pure water rinsing, and air drying. The entire system is linearly arranged, resulting in a large overall size and footprint. Traditional single-tank and multi-tank systems mostly lack a complete closed-loop circulation system. The cleaning solution is directly discharged after use or only undergoes simple sedimentation treatment, making recycling impossible. Furthermore, the multi-tank structure requires the separate addition of NMP reagent and DIW pure water to each tank, resulting in a very large amount of media added each time and high consumable procurement costs. Summary of the Invention

[0006] The purpose of this invention is to provide an ultrasonic cleaning machine to solve the problems in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic cleaning machine, comprising a frame, a tank assembly installed inside the frame, a cleaning roller mechanism rotatably mounted on the tank assembly, the cleaning roller mechanism being driven by a drive assembly, and an upper cover assembly installed on the frame above the tank assembly; an ultrasonic generator, a drive assembly, a fan, a heat exchanger, a first filter, a second filter, an explosion-proof magnetic pump, and a liquid storage assembly are installed on the outside of the tank assembly on the frame; The cleaning roller mechanism includes a roller assembly and an APR screen assembly, wherein the APR screen assembly is detachably mounted on the outside of the roller assembly; The tank assembly includes an outer tank, with two spray assemblies installed on the inner walls of both sides of the outer tank. A lower air knife assembly and an upper air knife assembly are sequentially installed on the outer tank above the spray assemblies.

[0008] Preferably, the APR screen assembly includes an APR screen surface, with clamps installed at both ends of the APR screen surface, and the clamps having multiple hanging holes; the roller assembly includes a roller body, with multiple fixed hanging ears that mate with the hanging holes of the clamp at one clamp, and a screen clamping block that limits the clamp is installed on one side of the roller body located on the clamp; the roller body has movable hanging ears that mate with the hanging holes of the clamp at another clamp.

[0009] Preferably, the roller body is equipped with multiple partitions, each partition having multiple through holes and multiple arc-shaped grooves evenly spaced along its edge; the clamping plate is equipped with a handle.

[0010] Preferably, the upper air knife assembly includes a first air knife and a plurality of upper air knife seats. The upper air knife seat has a first arc-shaped hole, and the first air knife is rotatably mounted at the first arc-shaped hole of the upper air knife seat, with the first arc-shaped hole facing upward. The lower air knife assembly includes a second air knife and a plurality of lower air knife seats. The lower air knife seat has a second arc-shaped hole, and the second air knife is rotatably mounted at the second arc-shaped hole of the lower air knife seat, with the second arc-shaped hole facing downward.

[0011] Preferably, the tank assembly further includes a drain pipe, a first photoelectric liquid level indicator, a connecting pipe, an inner tank, and a vibrating plate; multiple photoelectric switch liquid level connectors are installed at both ends of the outer tank, the inner tank is installed at the bottom of the outer tank, and a vibrating plate is installed at the bottom of the inner tank; the outer tank is equipped with a connecting pipe connected to the liquid storage assembly, and the inner tank is equipped with a drain pipe.

[0012] Preferably, multiple inspection doors are detachably installed on both sides of the outer tank, and a sealing gasket is installed between the inspection doors and the outer tank.

[0013] Preferably, the upper cover assembly includes an upper cover shell and a movable slot cover. The upper part of the upper cover shell is inclined, and linear guide rails are installed at both ends of the inclined surface of the upper cover shell. The movable slot cover is slidably installed on the linear guide rails. A first blocking cylinder for limiting the movable slot cover is installed at both ends of the lower part of the upper cover shell, and a second blocking cylinder for limiting the movable slot cover is installed at both ends of the upper part of the upper cover shell. A proximity switch is installed on the upper cover shell at both the first blocking cylinder and the second blocking cylinder.

[0014] Preferably, the upper cover assembly further includes a steel wire, a guide wheel assembly, and a counterweight plate. The two ends of the steel wire are connected to the movable groove cover and the counterweight plate, respectively, and the steel wire passes through the pulleys of the guide wheel assembly.

[0015] Preferably, air inlets are provided on both sides of the upper cover, and an upper cavity air inlet filter is installed on the upper cover at the air inlet; an exhaust port is provided at the rear of the upper cover.

[0016] Preferably, the liquid storage assembly includes a liquid storage tank, a tank cover plate is installed at the top of the liquid storage tank, the tank cover plate is locked by a quick-press head, the liquid storage tank is equipped with a second photoelectric liquid level indicator; a foot pedal is provided on one side of the frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The power components of the entire machine have undergone integrated and lightweight design. The rated power of core power-consuming components such as ultrasonic generators, drives, and air supply is relatively small, resulting in significantly reduced operating power consumption compared to traditional multi-tank cleaning machines. The equipment adopts a single-chamber continuous operation mode, eliminating the need for multiple tanks and transmission mechanisms to operate synchronously. This also avoids the additional energy loss caused by frequent start-ups and shutdowns of multi-tank equipment, resulting in outstanding energy-saving effects over long-term use.

[0018] 2. The equipment features a closed-loop circulation system. After cleaning, the NMP reagent and DIW pure water automatically return to storage for repeated use, reducing the amount of media added per cycle. A two-stage filtration system continuously traps impurities and particulate matter generated during cleaning, ensuring the cleanliness of the cleaning media and effectively extending the replacement cycle of reagents and pure water, thus reducing consumable consumption. The internal structure of the tank has been optimized for flow guidance, reducing cleaning media retention, accumulation, and evaporation losses, further lowering solvent usage.

[0019] 3. Traditional equipment separates processes such as spray washing, ultrasonic cleaning, pure water rinsing, and air knife drying into individual tanks, resulting in a large footprint. This equipment integrates all processes within a single chamber, relying on the rotation of the drum to complete the entire processing flow, eliminating the need for separate tank arrangements. The entire machine compactly integrates auxiliary components such as fans, heat exchangers, pumps, and filters, resulting in a smaller overall size and significantly improved space utilization, making it suitable for production workshops with limited space.

[0020] 4. The workpiece rotates at a uniform speed with the drum, passing sequentially through the spray zone, ultrasonic cleaning zone, and air knife drying zone. Each process is seamlessly connected, eliminating waiting time for workpiece transfer or loading / unloading across tanks. Multiple operations can be performed simultaneously in different areas within the chamber, allowing a single machine to process multiple batches of workpieces at the same time, supporting large-scale continuous production. The drum speed is flexibly adjustable, matching the processing time according to the workpiece type and degree of contamination, balancing cleaning quality and production cycle.

[0021] 5. Multiple spray structures are arranged on both sides of the cavity to spray cleaning medium from all directions, ensuring that the workpiece is fully wetted and there are no dead corners in the cleaning process.

[0022] 6. The bottom ultrasonic vibrating plate, in conjunction with the ultrasonic generator system, produces a cavitation effect. Combined with the dual action of spraying and rinsing, it can thoroughly remove stubborn stains from the workpiece surface. The screen holding the workpiece has a hollow structure, allowing the cleaning fluid to penetrate freely without obstructing the workpiece surface, ensuring uniform cleaning results. The equipment is equipped with two sets of air knives, using a bidirectional blowing mode to fully cover all surfaces of the workpiece. The air knife's air outlet angle can be flexibly adjusted to adapt to workpieces of different shapes; simultaneously, a hot air system accelerates moisture evaporation, ensuring that the workpiece is dried without any water accumulation or water stains.

[0023] 7. The workpiece-bearing mesh adopts a hanging structure, eliminating the need for bolts or other fasteners. With the help of handheld components, it can be quickly disassembled, replaced, and cleaned, making loading and unloading operations convenient. Removable inspection doors are located on both sides of the cavity, equipped with a sealing structure. Once opened, internal components such as the spray system, air knife, pipelines, and vibrating plates can be directly inspected and maintained, simplifying maintenance. The top of the liquid storage tank features a quick-locking structure, making it very easy to open the cover, add media, and clean the tank.

[0024] 8. The media conveying components adopt an explosion-proof structure, making them suitable for use with organic solvents such as NMP, effectively avoiding flammable and explosive risks. Both the chamber and the storage tank are equipped with liquid level monitoring devices to monitor the liquid level in real time, preventing equipment from running dry and media from overflowing, ensuring stable operation of the pipeline and chamber. The chamber, inspection door, and storage tank are all sealed, with independent air intake and exhaust structures, which not only prevents the leakage of chemicals and water vapor, protecting the workshop environment and equipment components, but also allows for the orderly purification and discharge of waste gas from the chamber.

[0025] 9. Combining the above advantages, this equipment features energy saving, chemical saving, pure water saving, small footprint, high production efficiency, and simple operation and maintenance. It not only directly reduces the cost of water, electricity and consumables procurement, but also reduces labor input, equipment downtime due to failure, and site usage costs. The overall cost of use of the equipment throughout its entire life cycle is far lower than that of traditional multi-tank ultrasonic cleaning machines. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is the present invention. Figure 1 A structural diagram from another perspective; Figure 3 This is a structural schematic diagram of the frame, cleaning drum mechanism, and tank assembly of the present invention; Figure 4 This is the present invention. Figure 3 A schematic diagram of the structure during rack removal; Figure 5 This is the present invention. Figure 4 Partial structural diagram; Figure 6 This is the present invention. Figure 5 A structural diagram from another perspective; Figure 7 This is a schematic diagram of the cleaning drum mechanism and tank assembly of the present invention; Figure 8 This is a schematic diagram of the cleaning drum mechanism of the present invention; Figure 9 This is a schematic diagram of the structure of the APR screen printing component of the present invention; Figure 10 This is a schematic diagram of the structure of the roller assembly of the present invention; Figure 11 This is a schematic diagram of the structure of the tank assembly of the present invention; Figure 12 This is a structural schematic diagram of the tank assembly of the present invention; Figure 13 This is a schematic diagram of the structure of the lower air knife assembly and the upper air knife assembly of the present invention; Figure 14 This is a schematic diagram of the structure of the upper cover assembly of the present invention; Figure 15 This is a structural schematic diagram of the upper cover assembly of the present invention from another perspective; Figure 16 This is a schematic diagram of the liquid storage component of the present invention; Figure 17 This is a schematic diagram of the structure of the liquid storage component of the present invention, which removes the tank cover.

[0027] In the diagram: 1. Frame; 2. Upper cover assembly; 3. Upper cavity air inlet filter; 4. Foot pedal; 5. Cleaning roller mechanism; 6. Tank assembly; 7. Ultrasonic generator; 8. Drive assembly; 9. Fan; 10. Heat exchanger; 11. First filter; 12. Second filter; 13. Explosion-proof magnetic pump; 14. Liquid storage assembly; 15. Inspection door; 51. Roller assembly; 52. APR screen assembly; 511. Roller body; 512. Fixed hanging ear; 513. Screen clamping block; 514. Movable hanging ear; 515. Through hole; 516. Partition plate; 517. Arc groove; 521. APR screen surface; 522. Clamping plate; 523. Hanging hole; 524. Handle; 601. Outer tank; 602. Drain pipe; 603. First photoelectric liquid level. ; 604. Connecting pipe; 605. Photoelectric switch liquid level connector; 606. Spray assembly; 607. Lower air knife assembly; 608. Upper air knife assembly; 609. Inner tank; 610. Vibrating plate; 6081. First air knife; 6082. Upper air knife seat; 6083. First arc-shaped hole; 6071. Second air knife; 6072. Lower air knife seat; 6073. Second arc-shaped hole; 201. Upper cover; 202. Air inlet; 203. First blocking cylinder; 204. Moving tank cover; 205. Linear guide rail; 206. Second blocking cylinder; 207. Steel wire; 208. Guide wheel assembly; 209. Exhaust vent; 210. Counterweight plate; 141. Liquid storage tank; 142. Storage tank cover plate; 143. Quick press head; 144. Second photoelectric liquid level. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Please see Figure 1-17In this embodiment of the invention, an ultrasonic cleaner includes a frame 1, a footrest 4 on one side of the frame 1, a tank assembly 6 installed inside the frame 1, a cleaning roller mechanism 5 rotatably mounted on the tank assembly 6, the cleaning roller mechanism 5 being driven by a drive assembly 8, and an upper cover assembly 2 mounted on the frame 1 above the tank assembly 6; an ultrasonic generator 7, a drive assembly 8, a fan 9, a heat exchanger 10, a first filter 11, a second filter 12, an explosion-proof magnetic pump 13, and a liquid storage assembly 14 are mounted on the outside of the tank assembly 6 on the frame 1; the cleaning roller mechanism 5 includes a roller assembly 51 and an APR screen assembly 52, the APR screen assembly 52 being detachably mounted on the outside of the roller assembly 51.

[0030] The APR screen assembly 52 includes an APR screen surface 521, with clamps 522 installed at both ends of the APR screen surface 521. Each clamp 522 has multiple hanging holes 523. The APR screen surface 521 has a perforated structure to allow for the penetration of cleaning fluid and airflow. The clamps 522 at both ends have hanging holes 523 and are equipped with handles 524 for quick placement and removal of the screen. The roller assembly 51 includes a roller body 511. The roller body 511 has multiple fixed hanging ears 512 installed at one clamp 522, which mate with the hanging holes 523 of that clamp 522. A screen clamping block 513 is installed on one side of the roller body 511 at the clamp 522 to limit the clamp 522's movement. The roller body 511 has movable hanging ears 514 installed at the other clamp 522, which mate with the hanging holes 523 of that clamp 522. Multiple partitions 516 are installed inside the roller body 511. Each partition 516 has multiple through holes 515, and its edges are equally spaced with multiple arc-shaped grooves 517. A handle 524 is installed on the clamping plate 522. The roller body 511 is driven by the driving assembly 8 to rotate at a uniform speed, causing the workpiece to circulate through each process area. A fixed hanging ear 512 and a screen clamping block 513 on one side, and a movable hanging ear 514 on the other side, cooperate with the hanging holes 523 of the clamping plate 522 to quickly hang, position, and lock the APR screen assembly 52. ​​Multiple partitions 516 are arranged inside the roller body 511. The through holes 515 on the partitions 516 facilitate the flow of cleaning fluid, and the arc-shaped grooves 517 on the edges enhance liquid guidance, reduce liquid accumulation, and improve cleaning and drying effects.

[0031] The tank assembly 6 includes an outer tank 601. Two spray assemblies 606 are installed on the inner walls of both sides of the outer tank 601. A lower air knife assembly 607 and an upper air knife assembly 608 are sequentially installed above the spray assemblies 606 on the outer tank 601. The outer tank 601 is the main cavity, with an inner tank 609 embedded at the bottom as a liquid collection and reflux area. A vibrating plate 610 is installed at the bottom of the inner tank 609, working in conjunction with an ultrasonic generator 7 on the outside of the frame. The ultrasonic generator 7 outputs a high-frequency electrical signal, which the vibrating plate 610 converts into mechanical vibration, generating an ultrasonic cavitation effect in the cleaning fluid to remove stubborn stains from the workpiece surface. Two sets of spray assemblies 606 are installed on each of the left and right sides of the outer tank 601, which can be connected to NMP chemical pipelines and DIW pure water pipelines respectively, achieving double-sided full-area spraying of the rotating workpiece and completing chemical spraying and pure water rinsing.

[0032] The upper air knife assembly 608 includes a first air knife 6081 and multiple upper air knife seats 6082. Each upper air knife seat 6082 has a first arc-shaped hole 6083. The first air knife 6081 is rotatably mounted at the first arc-shaped hole 6083 of the upper air knife seat 6082, with the first arc-shaped hole 6083 facing upwards. The lower air knife assembly 607 includes a second air knife 6071 and multiple lower air knife seats 6072. Each lower air knife seat 6072 has a second arc-shaped hole 6073. The second air knife 6071 is rotatably mounted at the second arc-shaped hole 6073 of the lower air knife seat 6072, with the second arc-shaped hole 6073 facing downwards. The second air knife 6071 can be rotated to adjust its air outlet angle, blowing downwards onto the workpiece; the first air knife 6081 can be rotated to adjust its angle, blowing upwards onto the workpiece. The two sets of air knives, together with the dry hot air output from the fan 9 and heat exchanger 10, form a bidirectional airflow, thoroughly removing residual moisture from the workpiece surface.

[0033] The tank assembly 6 also includes a drain pipe 602, a first photoelectric level indicator 603, a connecting pipe 604, an inner tank 609, and a vibrating plate 610. Multiple photoelectric level indicator connectors 605 are installed at both ends of the outer tank 601. The inner tank 609 is installed at the bottom of the outer tank 601, and the vibrating plate 610 is installed at the bottom of the inner tank 609. The outer tank 601 is equipped with a connecting pipe 604 that connects to the storage assembly 14, and the inner tank 609 is equipped with a drain pipe 602. The photoelectric level indicator connectors 605 and the first photoelectric level indicator 603 monitor the liquid level inside the outer tank 601 in real time, preventing overflow and dry running. The connecting pipe 604 connects the outer tank 601 and the storage assembly 14, allowing the cleaning medium to automatically flow back to the storage tank for recycling. The drain pipe 602 is located in the inner tank 609 and is used to discharge waste liquid during equipment liquid changes and maintenance.

[0034] Multiple inspection doors 15 are detachably installed on both sides of the outer tank 601, and a sealing gasket is installed between the inspection door 15 and the outer tank 601.

[0035] The upper cover assembly 2 includes an upper cover shell 201 and a movable slot cover 204. The upper part of the upper cover shell 201 is inclined. Linear guide rails 205 are installed at both ends of the inclined surface of the upper cover shell 201. The movable slot cover 204 is slidably installed on the linear guide rails 205. A first blocking cylinder 203 for limiting the movable slot cover 204 is installed at both ends of the lower part of the upper cover shell 201. A second blocking cylinder 206 for limiting the movable slot cover 204 is installed at both ends of the upper part of the upper cover shell 201. A proximity switch is installed on the upper cover shell 201 at the first blocking cylinder 203 and the second blocking cylinder 206. The upper cover assembly 2 also includes a steel wire 207, a guide wheel assembly 208, and a counterweight plate 210. The two ends of the steel wire 207 are connected to the movable groove cover 204 and the counterweight plate 210, respectively, and the steel wire 207 passes through the pulley of the guide wheel assembly 208. Air inlets 202 are provided on both sides of the upper cover 201, and an upper cavity air inlet filter 3 is installed at the air inlet 202 on the upper cover 201. An exhaust port 209 is provided at the rear of the upper cover 201. The upper cover 201 has an inclined structure, forming a sealed cleaning chamber to prevent the leakage of chemicals and moisture. The movable tank cover 204 is slidably mounted on the linear guide rail 205, and achieves smooth and effortless sliding through the steel wire 207, guide wheel assembly 208, and counterweight plate 210. The first blocking cylinder 203 and the second blocking cylinder 206, in conjunction with the built-in proximity switch, precisely limit the fully open and fully closed positions of the movable tank cover 204 and provide feedback signals. External air enters the chamber through the air inlet 202, is filtered and dust-removed by the upper chamber air inlet filter 3, and the moisture and exhaust gas in the chamber are finally discharged from the exhaust port 209, maintaining the air pressure and cleanliness in the chamber. The inspection door 15 is detachably installed on both sides of the outer tank 601, and a sealing gasket is installed between the door and the tank to balance the sealing of the chamber with the convenience of maintenance of internal components.

[0036] The liquid storage assembly 14 includes a liquid storage tank 141, with a tank cover 142 installed at the top. The tank cover 142 is locked in place by a quick-release pressure head 143. A second photoelectric liquid level indicator 144 is installed in the liquid storage tank 141. The liquid storage tank 141 is used to store cleaning media; the top tank cover 142 is quickly opened and closed by the quick-release pressure head 143 for easy replenishment and cleaning; the second photoelectric liquid level indicator 144 monitors the liquid level in the liquid storage tank 141 in real time, providing low-level alerts and preventing overflow at high levels.

[0037] An explosion-proof magnetic pump 13 serves as the power source for media transport, drawing reagents / pure water from the storage tank 141 and delivering it to the front-end spray assembly 606. Its explosion-proof structure is suitable for NMP organic solvent conditions, enhancing equipment safety. The first filter 11 and the second filter 12 are connected in series in the circulation pipeline, performing multi-stage filtration on the returning cleaning medium, trapping impurities and particles to ensure the cleanliness of the circulating liquid and extend the service life of the reagents and pure water. The drive assembly 8 provides stable rotational power to the cleaning drum mechanism 5, with adjustable speed to match different workpiece cleaning cycles. The fan 9 generates high-pressure airflow, and the heat exchanger 10 heats and dehumidifies the airflow, generating dry hot air that is supplied to the upper air knife assembly 608 and the lower air knife assembly 607, improving drying efficiency.

[0038] The working principle of this invention is as follows: the movable slot cover 204 slides open along the linear guide rail 205; the operator uses the foot pedal 4 to place the workpiece on the APR screen 521, and completes the screen clamping by fixing the hanging ear 512 and the movable hanging ear 514; then the movable slot cover 204 is reset.

[0039] The explosion-proof magnetic pump 13 starts, drawing NMP reagent from the storage tank 141. After being filtered by the first filter 11 and the second filter 12, it is sent into the spray assembly 606. At the same time, the drive assembly 8 drives the drum body 511 to rotate, and the ultrasonic generator 7 drives the vibrating plate 610 to generate ultrasonic vibration.

[0040] The spray assembly 606 sprays the agent on both sides, and completes deep cleaning with the help of ultrasonic cavitation; the agent falls into the inner tank 609 and flows back to the storage tank 141 through the connecting pipe 604 for recycling; the first photoelectric liquid level 603 and the second photoelectric liquid level 144 monitor the liquid level throughout the process.

[0041] When switching media in the pipeline, the explosion-proof magnetic pump 13 draws DIW pure water, which is then used by the spray assembly 606 to rinse the workpiece and remove residual chemicals; the pure water is also returned for filtration and reuse.

[0042] The spraying system stops working, and the fan 9 and heat exchanger 10 start. Dry hot air is sent into the lower air knife assembly 607 and the upper air knife assembly 608. The second air knife 6071 and the first air knife 6081 blow the rotating workpiece in both directions to thoroughly dry the surface moisture.

[0043] Each power component stops sequentially, the movable trough cover 204 reopens, and the finished workpiece is removed; all structures of the machine are reset, awaiting the next batch of operations.

[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. An ultrasonic cleaning machine, comprising a frame (1), characterized in that: The frame (1) is equipped with a tank assembly (6), and a cleaning roller mechanism (5) is rotatably mounted on the tank assembly (6). The cleaning roller mechanism (5) is driven by a drive assembly (8). The frame (1) is equipped with an upper cover assembly (2) above the tank assembly (6). The frame (1) is equipped with an ultrasonic generator (7), a drive assembly (8), a fan (9), a heat exchanger (10), a first filter (11), a second filter (12), an explosion-proof magnetic pump (13), and a liquid storage assembly (14) on the outside of the tank assembly (6). The cleaning roller mechanism (5) includes a roller assembly (51) and an APR screen assembly (52), with the APR screen assembly (52) detachably mounted on the outside of the roller assembly (51). The tank assembly (6) includes an outer tank (601), and two spray assemblies (606) are installed on the inner walls on both sides of the outer tank (601). A lower air knife assembly (607) and an upper air knife assembly (608) are installed on the outer tank (601) above the spray assemblies (606) in sequence.

2. The ultrasonic cleaning machine according to claim 1, characterized in that: The APR screen assembly (52) includes an APR screen (521), with clamps (522) installed at both ends of the APR screen (521), and the clamps (522) having multiple hanging holes (523); the roller assembly (51) includes a roller body (511), with multiple fixed hanging ears (512) that cooperate with the hanging holes (523) of the clamps (522) installed at one clamp (522), and a screen clamping block (513) that limits the clamps (522) is installed on one side of the roller body (511); the roller body (511) has a movable hanging ear (514) that cooperates with the hanging holes (523) of the clamps (522) installed at the other clamp (522).

3. An ultrasonic cleaning machine according to claim 2, characterized in that: The roller body (511) is equipped with multiple partitions (516), the partitions (516) have multiple through holes (515), and the edges of the partitions (516) are equally spaced with multiple arc-shaped grooves (517); the clamping plate (522) is equipped with a handle (524).

4. An ultrasonic cleaning machine according to claim 1, characterized in that: The upper air knife assembly (608) includes a first air knife (6081) and a plurality of upper air knife seats (6082). The upper air knife seat (6082) has a first arc-shaped hole (6083). The first air knife (6081) is rotatably mounted at the first arc-shaped hole (6083) of the upper air knife seat (6082), and the first arc-shaped hole (6083) faces upward. The lower air knife assembly (607) includes a second air knife (6071) and a plurality of lower air knife seats (6072). The lower air knife seat (6072) has a second arc-shaped hole (6073). The second air knife (6071) is rotatably mounted at the second arc-shaped hole (6073) of the lower air knife seat (6072), and the second arc-shaped hole (6073) faces downward.

5. An ultrasonic cleaning machine according to claim 1, characterized in that: The tank assembly (6) also includes a drain pipe (602), a first photoelectric liquid level indicator (603), a connecting pipe (604), an inner tank (609), and a vibrating plate (610); multiple photoelectric switch liquid level connectors (605) are installed at both ends of the outer tank (601), the inner tank (609) is installed at the bottom of the outer tank (601), and the vibrating plate (610) is installed at the bottom of the inner tank (609); the outer tank (601) is equipped with a connecting pipe (604) connected to the liquid storage assembly (14), and the inner tank (609) is equipped with a drain pipe (602).

6. An ultrasonic cleaning machine according to claim 5, characterized in that: Multiple inspection doors (15) are detachably installed on both sides of the outer tank (601), and a sealing gasket is installed between the inspection door (15) and the outer tank (601).

7. An ultrasonic cleaning machine according to claim 1, characterized in that: The upper cover assembly (2) includes an upper cover shell (201) and a movable slot cover (204). The upper part of the upper cover shell (201) is inclined. Linear guide rails (205) are installed at both ends of the inclined surface of the upper cover shell (201). The movable slot cover (204) is slidably installed on the linear guide rails (205). A first blocking cylinder (203) for limiting the movable slot cover (204) is installed at both ends of the lower part of the upper cover shell (201). A second blocking cylinder (206) for limiting the movable slot cover (204) is installed at both ends of the upper part of the upper cover shell (201). A proximity switch is installed on the upper cover shell (201) at both the first blocking cylinder (203) and the second blocking cylinder (206).

8. An ultrasonic cleaning machine according to claim 7, characterized in that: The upper cover assembly (2) also includes a steel wire (207), a guide wheel assembly (208) and a counterweight plate (210). The two ends of the steel wire (207) are connected to the movable groove cover (204) and the counterweight plate (210) respectively, and the steel wire (207) passes through the pulley of the guide wheel assembly (208).

9. An ultrasonic cleaning machine according to claim 7, characterized in that: The upper cover (201) has air inlets (202) on both sides, and an upper cavity air inlet filter (3) is installed on the upper cover (201) at the air inlet (202); an exhaust port (209) is provided at the rear of the upper cover (201).

10. An ultrasonic cleaning machine according to claim 1, characterized in that: The liquid storage assembly (14) includes a liquid storage tank (141), a tank cover plate (142) is installed on the top of the liquid storage tank (141), the tank cover plate (142) is locked by a quick press head (143), and a second photoelectric liquid level (144) is installed in the liquid storage tank (141); a foot pedal (4) is provided on one side of the frame (1).

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