TWI869837B - Ultrasonic cleaning machine - Google Patents

Abstract

The present invention proposes an ultrasonic cleaning machine, which basically includes: a first water tank, a second water tank, a control host, a pump, a heater, an ultrasonic generator, a transducer and an electric valve; the first water tank is used as a cleaning tank for cleaning objects, and the second water tank is used as a storage tank for storing clean water required for cleaning objects; the control host has several control logics such as automatic control, manual control, status monitoring and parameter setting, and only one key operation is required to automatically complete the ultrasonic cleaning operation of the object. The human-machine control interface is easy to operate and can display complete operation information and parameters. On the other hand, the present invention provides a low-cost ultrasonic cleaner with a certain cleaning effect, excellent cleaning effect, and realizes a non-destructive cleaning operation.

Description

Ultrasonic cleaning machine

The present invention relates to a cleaning device, in particular to the structure of an ultrasonic cleaning machine.

As we all know, cleaning objects is a necessary task in most industries, such as: removing anti-rust grease in the machinery industry, degreasing and derusting mechanical parts, cleaning engines, carburetors and automobile parts, etc.; high-quality cleaning of semiconductor chips in the semiconductor industry; degreasing and derusting before shoveling, cleaning before ion plating, removing carbon deposits, cleaning and removing polishing paste, and surface activation of metal workpieces in the surface treatment industry; cleaning, disinfection, sterilization of medical equipment, and cleaning of laboratory utensils in the medical industry, etc.

In addition, there are many things that need to be cleaned in the daily lives of ordinary people, such as cleaning pollutants and unclogging small holes. The common manual cleaning method is undoubtedly unable to meet the requirements for special-shaped objects and hidden parts of objects. Even steam cleaning and high-pressure water jet cleaning cannot meet the higher requirements for cleanliness. Cleaning takes a long time, and it is difficult to achieve the cleanliness standard for internal cleaning.

Compared with pedals made of all-metal materials, the advantages of pedals made of all-plastic materials are light weight, a variety of colors, easy to make various configurations, and low manufacturing costs. The disadvantages are that they are not strong enough and are easy to break or damage, and the friction between the pedals and the soles will be greatly reduced when they come into contact with water. On the contrary, the advantages of pedals made of all-metal materials are good strength, impact resistance, not easy to break and deform, and the soles can still grip the pedals when they come into contact with water.

The technical problem to be solved by the present invention is to provide an ultrasonic cleaning machine with excellent cleaning effect and non-destructive cleaning.

A preferred embodiment of the ultrasonic cleaning machine of the present invention includes: a first water tank, a second water tank, a high-pressure blower, a first pump, a second pump, a third pump, a control host, a drain valve, a water inlet valve, an ultrasonic generator, and a transducer;

The first water tank is provided with a drain outlet, a first water inlet, a first recovery outlet, a first heater, a water spray head and at least one air outlet. The water spray head and the air outlet are arranged at a higher position on the inner wall of the first water tank. The first heater is arranged at the inner bottom of the first water tank. The first heater is electrically connected to the control host to heat the water in the first water tank. The drain outlet is connected to the drain valve, which is controlled by the control host to quickly discharge the waste liquid in the first water tank.

The second water tank is provided with a water outlet, a second water inlet, a second recovery port, and a second heater; the second heater is arranged at the bottom of the inner side of the second water tank, and the second heater is electrically connected to the control host to heat the water in the second water tank;

The first water inlet is connected to the water outlet of the second water tank through the first pump, and the first pump is controlled by the control host to inject the water stored in the second water tank into the first water tank for ultrasonic cleaning. The first water tank is equipped with a water level control valve, which is used to stop injecting water into the first water tank by controlling the first pump and the water level control valve when the water level of the first water tank reaches the full water level. The first recovery port of the first water tank is connected to the second recovery port of the second water tank through the second pump, and the second pump is controlled by the control host to recover the water of the first water tank and inject it into the second water tank;

The second water inlet of the second water tank is connected to an external water source through a water inlet valve, and the host controls the opening or closing of the water inlet valve to inject water from the external water source into the second water tank, and cut off the external water source when the water level in the second water tank reaches the full water level;

The third pump is connected to the second water tank and the water spray head. The third pump is controlled by the control host to transport water from the second water tank to the water spray head for cleaning objects;

The high-pressure blower is electrically connected to the control host, and the air outlet of the high-pressure blower is connected to the air outlet of the first water tank through an air supply pipe. The high-pressure blower is controlled by the control host to blow air to the objects in the first water tank;

The transducer is arranged at the bottom of the outer side of the first water tank, and the ultrasonic generator is electrically connected to the control host and the transducer. The ultrasonic generator is controlled by the control host to emit a high-frequency oscillation signal, which is then converted into a high-frequency mechanical oscillation by the transducer;

The control host is a programmable logic controller used to control the operation of the ultrasonic cleaning machine. The control host is equipped with a human-machine control interface for the operator to control. The human-machine control interface is equipped with at least one display. The human-machine control interface provides a main screen and displays it on the display to display the control logic options. The control logic includes: an automatic control mode, a manual control mode, a status monitoring mode and a parameter setting mode.

In a preferred embodiment, the high-pressure blower has a heating function to generate hot air.

In a preferred embodiment, the positions of the water spray head and the air outlet are higher than the highest water level of the first water tank.

In a preferred embodiment, the first heater and the second heater are electric heaters covered with a protective casing.

In a preferred embodiment, it includes a plurality of transducers, which are evenly distributed at the bottom of the first water tank.

In a preferred embodiment, the control host has a delayed start circuit for delaying the slow start of the control circuit of the ultrasonic generator.

In a preferred embodiment, in the status monitoring mode, the display shows: the water level of the first water tank and the second water tank, the real-time flow rate of the rinsed object, the real-time pressure of the rinsed object, the remaining rinse time, the remaining ultrasonic cleaning time, and the remaining blowing time.

In a preferred embodiment, the parameter setting mode can be set to include: flushing time, ultrasonic cleaning time and blowing time.

In a preferred embodiment, the automatic control mode can use the human-machine control interface to start the fully automatic ultrasonic cleaning operation with one button, and stop the operation with one button.

In a preferred embodiment, the fully automatic ultrasonic cleaning operation includes the following steps:

To rinse the object, the host computer controls the third pump to transport the water from the second water tank to the sprinkler head for washing the object. At the same time, the drain valve will open and close after the set flushing time is up;

After the first water tank is filled with water and the drain valve is closed, the control host controls the first pump to inject the water stored in the second water tank into the first water tank. When the water level in the first water tank reaches the high water level, the water supply will automatically stop to prevent overflow;

Ultrasonic cleaning: the host controls the ultrasonic generator to send a high-frequency oscillation signal to the transducer, and starts ultrasonic cleaning of the object until the ultrasonic cleaning time ends, and then stops the operation of the ultrasonic generator;

Recycle water, the control host controls the second pump to recycle the water from the first water tank and inject it into the second water tank;

Blowing, after the water in the first water tank is recovered, the control host controls the high-pressure blower to start, and blows air to the objects in the first water tank until the blowing time ends and the system stops.

In a preferred embodiment, the manual control mode can be performed using a human-machine control interface to include: filling the second water tank with water, heating the second water tank, heating the first water tank, blowing, ultrasonic cleaning, discharging waste liquid, and separate operations of recycling water.

The advantages and effects of the invention are that it has an automatic mode and a fully functional human-machine control interface. With just one button, the ultrasonic cleaning of objects can be completed automatically. The human-machine control interface is easy to operate and can display complete operating information and parameters.

On the other hand, the present invention provides a low-cost ultrasonic cleaner with a high cleaning effect. The cleaning effect is excellent. The cleaning effect benefits from the cavitation shock wave and penetration generated when the sound wave propagates in the medium. It is easy to clean the fine holes and inner cavities of parts with complex shapes. The cleaning object can be easily cleaned without damage. The ultrasonic cleaner diffuses and expands the bubbles in the liquid through ultrasound to form a strong shock wave to clean the object, so it does not carry any medium that damages the surface of the object, and the cleaning is both clean and damageless.

The specific implementation method, technical features and effects of the present invention will be described below with accompanying drawings.

10: First water tank

101: Drainage outlet

102: First water inlet

103: First recycling port

104: Air outlet

105: Water level control valve

11: First heater

12: Sprinkler head

20: Second water tank

201: Water outlet

202: Second water inlet

203: Second recycling port

21: Second heater

30: High pressure blower

41: First Pump

42: Second Pump

43: Third Pump

51: Ultrasound generator

52: Transducer

60: Control host

61: Human-machine control interface

611: Display

71: Drain valve

72: Water inlet valve

S1: Rinse objects

S2: Fill the first water tank with water

S3: Ultrasonic cleaning

S4: Recycled water

S5: Blowing

S6: System stop

Figure 1 is a schematic diagram of the structure of a preferred embodiment of the ultrasonic cleaning machine of the present invention.

Figure 2 is a top view of Figure 1.

Figure 3 is a schematic diagram of the structure and function of the embodiment of Figure 1.

Figure 4 is a schematic diagram of an implementation of a human-machine control interface, showing the contents of the main screen.

Figure 5 is a schematic diagram of an embodiment of a human-machine control interface, illustrating the contents of the parameter setting mode.

Figure 6 is a schematic diagram of an embodiment of a human-machine control interface, illustrating the contents of the automatic control mode.

Figure 7 is a schematic diagram of an embodiment of a human-machine control interface, illustrating the contents of the manual control mode.

Figure 8 is a schematic diagram of an implementation of a human-machine control interface, illustrating the content of the status monitoring mode.

Figure 9 is a flow chart of the ultrasonic cleaning machine of the present invention performing automatic ultrasonic cleaning in automatic control mode.

In the embodiments disclosed in the patent specification and drawings of the present invention, the directions mentioned therein (such as up, down, left, right, front and back) are based on the contents shown in the drawings and are used to illustrate the relative relationship between the various elements or structures in the embodiments (such as positional relationship, connection relationship and action relationship). In principle, when the positions of the elements or structures mentioned in the specification of the present invention match those shown in the drawings, the directions mentioned will be appropriate. If the positions of the elements or structures mentioned in the specification of the present invention change, the directions mentioned should also be changed accordingly.

Please refer to Figures 1 to 3, which are schematic diagrams, top views and schematic diagrams of the structure and function of a preferred embodiment of the ultrasonic cleaning machine of the present invention. The structure of a preferred embodiment of the ultrasonic cleaning machine of the present invention basically includes: a first water tank 10, a second water tank 20, a high-pressure blower 30, a first pump 41, a second pump 42, a third pump 43 (for flushing), a control host 60, a display 611, a drain valve 71, a water inlet valve 72 (preferably an electric valve such as an electromagnetic valve), an ultrasonic generator 51, and at least one transducer 52.

The first water tank 10 is used as a cleaning tank for cleaning objects, and the second water tank 20 is used as a storage tank for storing clean water required for cleaning objects. When used in certain industries, it is better to use pure water. The first water tank 10 is provided with a drain outlet 101, a first water inlet 102 and a first recovery port 103, and the second water tank 20 is provided with a water outlet 201, a second water inlet 202, and a second recovery port 203.

The first water tank 10 is provided with a first heater 11, a water spray head 12 and at least one air outlet 104. The water spray head 12 and the air outlet 104 are arranged at a higher position on the inner wall of the first water tank 10 (for example, a position higher than the highest water level of the first water tank 10); a second heater 21 is arranged in the second water tank 20 (see Figure 3); preferably, the first heater 11 is arranged at the inner bottom of the first water tank 10, and the second heater 21 is arranged at the inner bottom of the second water tank 20; the preferred embodiment of the first heater 11 and the second heater 21 is an electric heater covered with a protective shell. Ultrasonic waves have the best cavitation effect at 40℃-50℃. The higher the temperature, the more conducive it is to the decomposition of waste. However, when the temperature reaches 70℃-80℃, the effect of ultrasonic waves will be affected, reducing the cleaning effect.

The first heater 11 is electrically connected to the control host 60, and the operator can control the first heater 11 by the control host 60 in an automatic or manual control manner to heat the water in the first water tank 10; the second heater 21 is electrically connected to the control host 60, and the operator can control the second heater 21 by the control host 60 in an automatic or manual control manner to heat the water in the second water tank 20; preferably, the display 611 of the control host 60 displays the current water temperature of the first water tank 10 and the countdown time of ultrasonic cleaning.

The drain port 101 of the first water tank 10 is connected to the drain valve 71 (see Figure 3). The drain valve 71 is controlled by the control host 60. The operator can control the drain valve 71 to open or close automatically or manually through the control host 60 to quickly drain the waste liquid from the first water tank 10. Preferably, after the waste liquid from the first water tank 10 is completely drained, the control host 60 automatically closes the drain valve 71. In a preferred embodiment, the drain port 101 is a funnel-shaped or mesh-shaped drain port, which can quickly drain the waste liquid and prevent large objects from entering the drain port 101 or the drain pipe.

The first water inlet 102 of the first water tank 10 is connected to the water outlet 201 of the second water tank 20 via the first pump 41 (see Figure 3). The first pump 41 is controlled by the control host 60. The operator can control the first pump 41 to automatically control the water stored in the second water tank 20 into the first water tank 10 through the control host 60 for ultrasonic cleaning. Preferably, the first water tank 10 is equipped with a water level control valve 105 to stop the injection of water into the first water tank 10 by controlling the first pump 41 and the water level control valve 105 when the water level of the first water tank 10 reaches the full water level.

The first recovery port 103 of the first water tank 10 is connected to the second recovery port 203 of the second water tank 20 via the second pump 42 (see Figure 3). The second pump 42 is controlled by the control host 60. The operator can control the second pump 42 to automatically control the water in the first water tank 10 and inject it into the second water tank through the control host 60.

The second water inlet 202 of the second water tank 20 is connected to an external water source through a water inlet valve 72 (see Figure 3). Water from the external water source is injected into the second water tank 20 through the water inlet valve 72. The operator can control the opening or closing of the water inlet valve 72 by the control host 60 in an automatic or manual manner to inject water from the external water source into the second water tank 20. When the water level in the second water tank 20 reaches the full water level, the external water source is cut off to prevent water from overflowing.

As shown in Figure 3, the third pump 43 is connected to the second water tank 20 and the water spray head 12. The third pump 43 is controlled by the control host 60. The operator can control the third pump 43 to automatically control the water in the second water tank 20 to the water spray head 12 through the control host 60 for washing objects.

The high-pressure blower 30 is electrically connected to the control host 60. The air outlet of the high-pressure blower 30 is connected to the air outlet 104 of the first water tank 10 through the air supply pipe. The high-pressure blower 30 is controlled by the control host 60. The operator can control the high-pressure blower 30 to open or close automatically or manually through the control host 60 to blow air to the objects in the first water tank 10. In other preferred embodiments, the high-pressure blower 30 has a heating function to generate hot air.

The transducer 52 is disposed at the bottom of the outer side of the first water tank 10. A preferred embodiment is to configure a plurality of transducers 52 evenly distributed at the bottom of the first water tank 10 (see FIG. 1 ). The ultrasonic generator 51 is electrically connected to the control host 60 and the transducer 52. The ultrasonic generator 51 is controlled by the control host 60. The operator can control the ultrasonic generator 51 automatically or manually through the control host 60. The high-frequency oscillation signal emitted by the ultrasonic generator 51 is then converted into high-frequency mechanical oscillation by the transducer 52 and propagated to the water or cleaning liquid (used as a cleaning medium) in the first water tank 10. The ultrasonic waves radiate forward in the water in a sparse and dense manner, causing the water to flow and generate tens of thousands of tiny bubbles with a diameter of 50-500μm. The tiny bubbles in the water vibrate under the action of the sound field. These bubbles are formed and grow in the negative pressure area where the ultrasonic waves propagate longitudinally, and in the positive pressure area, when the sound pressure reaches a certain value, the bubbles rapidly increase in size and then suddenly close. When the bubbles close, shock waves are generated, and thousands of atmospheres of pressure are generated around them, destroying the dirt adsorbed on the surface of the object, causing the dirt to be fatigued and broken and then removed. The vibration of the gas bubbles can scrub the solid surface, and the destroyed insoluble dirt is dispersed in water or cleaning liquid. When the group particles are wrapped in oil and adhere to the surface of the object, the oil is emulsified and the solid particles are detached, thereby achieving the purpose of cleaning and purification. In this process called "cavitation", the closure of bubbles can form a high temperature of several hundred degrees and an instantaneous high pressure of more than 1,000 atmospheres. The continuous generation of instantaneous high pressure is like a series of small "explosions" that continuously impact the surface of the object, causing the dirt on the surface and in the gaps of the object to fall off quickly, thereby achieving the purpose of cleaning the surface of the object.

In a preferred embodiment, the control host 60 has a delayed start circuit, which can effectively protect the drive power supply by delaying (for example, delaying for 5 seconds) the control circuit of the ultrasonic generator 51. The main materials of the transducer 52 are piezoelectric transistors (electrostrictive) and nickel-iron-aluminum alloys (magnetostrictive). The electrostrictive materials include lead zirconate titanate (PZT), etc. The transducer composed of piezoelectric transistors is a reversible sensor that can convert electrical energy into mechanical vibration to generate ultrasound.

In the embodiments disclosed in the present invention, the connection method or means between the fluid devices (such as the first water tank 10, the second water tank 20, the high-pressure blower 30, the first pump 41, the second pump 42, the third pump 43 and several valves) is realized through pipelines unless otherwise specified. The preferred embodiment is to use metal pipes as the flow path of water. In other embodiments, hoses (including metal or plastic hoses) can be used. For example, hoses are preferably used to connect the high-pressure blower 30 and the air outlet 104.

A preferred implementation of the control host 60 is a programmable logic controller (PLC) for controlling the operation of the ultrasonic cleaning machine. The control host 60 is equipped with a human-machine control interface 61 for the operator to control. The human-machine control interface 61 is equipped with at least one display 611. The human-machine control interface 61 provides a main screen and displays it on the display 611 (see Figure 4) to display the control logic options. The implementation of the human-machine control interface 61 includes: a touch screen, a physical button, or a combination thereof. Preferably, the human-machine control interface 61 can be a combination of a touch screen and a physical button, wherein Figure 1 shows an implementation of a touch screen.

As shown in Figure 4, the control logic of the control host 60 includes: automatic control mode, manual control mode, status monitoring mode and parameter setting mode. The operator can use the human-machine control interface 61 to select any of the above modes for operation.

As shown in FIG. 5 , in the parameter setting mode, the operator can use the human-machine control interface 61 to set the following parameters, including: flushing time, ultrasonic cleaning time, and blowing time. In a preferred embodiment, the settable parameters also include the heating temperature of the first water tank 10 and the second water tank 20.

As shown in FIG. 8 , in the status monitoring mode, the operator can see the operation information of the ultrasonic cleaning machine on the display 611 , including: the water level of the first water tank 10 and the second water tank 20 , the real-time flow rate of the rinsed objects, the real-time pressure of the rinsed objects, the remaining rinse time, the remaining ultrasonic cleaning time, and the remaining air blowing time.

As shown in Figure 6, in the automatic control mode, the operator can use the human-machine control interface 61 to perform operations including one-touch start and one-touch stop; put the object to be cleaned into the first water tank 10, and just press the one-touch start button to start the ultrasonic cleaning operation fully automatically. Please refer to Figure 9 for the action flow of ultrasonic automatic cleaning, which includes the following steps:

S1. Rinse the object. The control host 60 controls the third pump to deliver the water from the second water tank to the spray head for washing the object. At the same time, there is real-time flow and real-time pressure information for observation. At the same time, the drain valve 71 will open. After the set flushing time is up, the drain valve 71 will close;

S2. After the first water tank is filled with water and the drain valve 71 is closed, the control host 60 controls the first pump 41 to inject the water stored in the second water tank 20 into the first water tank 10 for ultrasonic cleaning. When the water level of the first water tank 10 reaches the high water level, the water intake is automatically stopped to prevent water overflow;

S3. Ultrasonic cleaning, the control host 60 controls the ultrasonic generator 51 to send a high-frequency oscillation signal to the transducer 52, which is converted into a high-frequency mechanical oscillation by the transducer 52 and transmitted to the water in the first water tank 10, and ultrasonic cleaning of the object begins until the ultrasonic cleaning time ends, and the operation of the ultrasonic generator 51 is stopped;

S4. Recycle water, the control host 60 controls the second pump 42 to recycle the water from the first water tank 10 and inject it into the second water tank 20;

S5. Blowing. After the water in the first water tank 10 is recovered, the control host 60 controls the high-pressure blower 30 to start, so as to blow air to the objects in the first water tank 10 until the blowing time is over. The entire automatic ultrasonic cleaning process ends and the system stops (S6).

If you want to force a stop during automatic operation, you can press the "One-click Stop" button at any time. In an emergency, you can press the emergency stop button (not shown in the figure). The best implementation method of the emergency stop button is to use a body button to manually force the system to stop in an emergency to maintain safety.

As shown in FIG. 7, in the manual control mode (FIG.E), the operator can use the human-machine control interface 61 to perform individual operations including: filling the second water tank with water, heating the second water tank, heating the first water tank, blowing, ultrasonic cleaning, discharging waste liquid, and recycling water.

The ultrasonic cleaning machine of the present invention has an automatic mode and a fully functional human-machine control interface 61. It can automatically complete the ultrasonic cleaning operation of the object with just one button operation. The cleaning object can be easily cleaned without damage. The human-machine control interface 61 is easy to operate and can display complete operation information and parameters.

Although the present invention has been disclosed through the above-mentioned embodiments, it is not intended to limit the present invention. Anyone familiar with similar techniques can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be subject to the definition of the claims attached to this specification.

10: First water tank

101: Drainage outlet

11: First heater

30: High pressure blower

41: First Pump

51: Ultrasound generator

52: Transducer

60: Control host

61: Human-machine control interface

71: Drain valve

Claims (11)

An ultrasonic cleaning machine for cleaning objects comprises: a first water tank, a second water tank, a high-pressure blower, a first pump, a second pump, a third pump, a control host, a drain valve, a water inlet valve, an ultrasonic generator, and a transducer; the first water tank is provided with a drain outlet, a first water inlet, a first recovery outlet, a first heater, a water spray head and at least one air outlet, the water spray head and the air outlet are arranged at a higher position of the inner side wall of the first water tank, the first heater is arranged at the inner bottom of the first water tank, the first heater is electrically connected to the control host to heat the water in the first water tank, the drain outlet is connected to the drain valve, and the drain valve is controlled by the control host to quickly drain the waste liquid in the first water tank. out; the second water tank is provided with a water outlet, a second water inlet, a second recovery port, and a second heater; the second heater is arranged at the bottom of the inner side of the second water tank, and the second heater is electrically connected to the control host for heating the water in the second water tank; the first water inlet is connected to the water outlet of the second water tank through the first pump, and the first pump is controlled by the control host to inject the water stored in the second water tank into the first water tank for ultrasonic cleaning, and the first water tank is provided with a water level control valve, which is used to stop injecting water into the first water tank by controlling the first pump and the water level control valve when the water level of the first water tank reaches the full water level, and the first recovery port of the first water tank is connected to the water outlet of the second water tank through the second pump. The second recovery port, the second pump is controlled by the control host to recycle the water of the first water tank and inject it into the second water tank; the second water inlet of the second water tank is connected to the external water source through the water inlet valve, and the control host controls the opening or closing of the water inlet valve to inject the water of the external water source into the second water tank, and cuts off the external water source when the water level of the second water tank reaches the full water level; the third pump is connected to the second water tank and the water spray head, and the third pump is controlled by the control host to transport the water of the second water tank to the water spray head for washing objects; the high-pressure blower is electrically connected to the control host, and the air outlet of the high-pressure blower is connected to the air outlet of the first water tank through the air supply pipe, and the high-pressure blower is controlled by the control host to align the second water tank with the water spray head. The objects in the first water tank are blown; the transducer is arranged at the bottom of the outer side of the first water tank, the ultrasonic generator is electrically connected to the control host and the transducer, the ultrasonic generator is controlled by the control host to emit a high-frequency oscillation signal, and then converted into a high-frequency mechanical oscillation by the transducer; the control host is a programmable logic controller for controlling the operation of the ultrasonic cleaning machine, the control host is equipped with a human-machine control interface for the operator to control, the human-machine control interface is equipped with at least one display, the human-machine control interface provides a main screen and is displayed on the display, for displaying the control logic options, the control logic includes: an automatic control mode, a manual control mode, a state monitoring mode and a parameter setting mode. In the ultrasonic cleaning machine described in claim 1, the high-pressure blower has a heating function to generate hot air. In the ultrasonic cleaning machine described in claim 1, the water spray head and the air outlet are located higher than the highest water level of the first water tank. In the ultrasonic cleaning machine as described in claim 1, the first heater and the second heater are electric heaters covered with a protective shell. The ultrasonic cleaning machine as described in claim 1 includes a plurality of said transducers, which are evenly distributed at the bottom of said first water tank. As described in claim 1, the control host has a delayed start circuit for delaying the slow start of the control circuit of the ultrasonic generator. In the ultrasonic cleaning machine as described in claim 1, in the status monitoring mode, the display shows: the water level of the first water tank and the second water tank, the real-time flow rate of the rinsed object, the real-time pressure of the rinsed object, the remaining rinse time, the remaining ultrasonic cleaning time, and the remaining air blowing time. For the ultrasonic cleaning machine as described in claim 1, the parameters that can be set in the parameter setting mode include: flushing time, ultrasonic cleaning time and blowing time. As described in claim 1, in the automatic control mode, the human-machine control interface can be used to start the fully automatic ultrasonic cleaning operation with one button, and stop the operation with one button. As described in claim 9, the fully automatic ultrasonic cleaning operation includes the following steps: To rinse the object, the control host controls the third pump to transport the water from the second water tank to the water spray head for washing the object. At the same time, the drain valve will open and close after the set flushing time is up; The first water tank is filled with water. After the drain valve is closed, the control host controls the first pump to inject the water stored in the second water tank into the first water tank. When the water level of the first water tank reaches the high water level, the water intake is automatically stopped to prevent the water from overflowing; Ultrasonic cleaning, the control host controls the ultrasonic generator to send a high-frequency oscillation signal to the transducer, and starts ultrasonic cleaning of the object until the ultrasonic cleaning time ends, and then stops the operation of the ultrasonic generator; Recycle water, the control host controls the second pump to recycle the water from the first water tank and inject it into the second water tank; Blowing, after the water in the first water tank is recovered, the control host controls the high-pressure blower to start, so as to blow air to the objects in the first water tank until the blowing time is over and the system stops. As described in claim 1, the ultrasonic cleaning machine can use the human-machine control interface in the manual control mode to perform individual operations including: filling the second water tank with water, heating the second water tank, heating the first water tank, blowing, ultrasonic cleaning, discharging waste liquid, and recycling water.

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