CN211464121U

CN211464121U - Ultrasonic cleaning equipment control system

Info

Publication number: CN211464121U
Application number: CN201921860135.XU
Authority: CN
Inventors: 李松镇; 闫会朝
Original assignee: Shenzhen Ruidefeng Technology Co ltd
Current assignee: Shenzhen Ruidefeng Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-09-11
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses an ultrasonic cleaning equipment control system relates to the ultrasonic cleaning trade. The frequency modulation control circuit comprises a generator circuit, a control panel circuit and a frequency modulation control circuit, wherein the control panel circuit is externally connected with an operation panel, the generator circuit comprises a power supply, a power amplification module, a driving module and a matching inductance module, the power supply is used for supplying power to the power amplification module, the driving module is used for driving the power amplification module, and the driving module comprises a driving board interface; the two matching inductors are connected with a power supply through a step-up transformer, the step-up transformer and a drive plate interface are arranged in parallel, one end of the drive plate interface is connected with one electrode of the power supply through a high-power rectifier bridge, and the other end of the drive plate interface is connected with the other electrode of the power supply through a drive power supply isolator and a power amplifier module in sequence. The utility model has the characteristics of small, peripheral circuit is simple, the supersound effect is stable, the interference killing feature is strong.

Description

Ultrasonic cleaning equipment control system

Technical Field

The utility model relates to an ultrasonic cleaning trade especially relates to an ultrasonic cleaning equipment control system.

Background

Ultrasonic cleaning begins in the early 50 s of the century, and along with the progress of technology, the application range of ultrasonic cleaning is increasingly expanded, and the ultrasonic cleaning is widely applied to the electronic and electrical industry and can be used for cleaning semiconductor devices, electronic tube parts, printed circuits, relays, switches, filters and the like; the cleaning agent is used for cleaning gears, bearings, oil pump and oil nozzle matching parts, fuel filters, valves and other mechanical parts in the mechanical industry; in the optical and medical appliance industry, the cleaning agent is used for cleaning various lenses, glasses and frames, medical glassware, needle tubes, surgical instruments and the like; it is used in light textile industry to clean spinning nozzle, food bottle, cover, mold, carved handicraft, etc.

The ultrasonic generator converts ultrasonic frequency electric energy into mechanical vibration and radiates ultrasonic waves to the cleaning liquid contained in the cleaning tank through the cleaning tank wall. The direct repeated impact of the steam type cavitation on the dirt layer destroys the adsorption of the dirt and the surface of a cleaning piece on one hand, and also causes the fatigue destruction of the dirt layer to be separated from the cleaning piece on the other hand.

The vibration of the gas bubbles scrubs the surface of the solid, and once the dirty layer has a seam, the bubbles can also penetrate into the seam to vibrate, so that the dirty layer falls off. The two liquids are dispersed and emulsified rapidly at the interface due to cavitation, and when the solid particles are wrapped by oil dirt and adhered to the surface of the cleaning piece, the oil is emulsified and the solid particles fall off automatically. The ultrasonic wave can generate positive and negative alternating sound pressure when being transmitted in the cleaning liquid to impact a cleaning piece, meanwhile, the nonlinear effect can generate sound flow and micro sound flow, and the ultrasonic cavitation can generate high-speed micro jet flow on a solid and liquid interface, all the functions can destroy dirt, remove or weaken a boundary dirt layer, increase stirring and diffusion functions, accelerate the dissolution of soluble dirt and strengthen the cleaning function of the chemical cleaning agent.

It can be seen that all places where liquid can be immersed and sound field exists have cleaning function, and the cleaning speed is fast, quality is high, it is especially suitable for cleaning surface of cleaning piece with complex shape, such as fine cleaning of cavity and slit, etc., and it is easy to implement cleaning automation.

In some occasions, the water aqua can replace an organic solvent for cleaning, or the concentration of acid and alkali can be reduced, and remote control or automatic cleaning can be realized for some cleaning which is harmful to human health, such as cleaning radioactive dirt.

The traditional ultrasonic cleaning equipment control system has the following defects:

1. the environment of the control system of the ultrasonic cleaning equipment is severe, the elements of the ultrasonic generator are arranged in the control box and are not isolated and protected, and after the ultrasonic cleaning equipment is used for a period of time, the circuit elements become dirty and corroded and damaged. The control box is completely isolated, and the heat radiation performance of the elements of the ultrasonic generator is not good;

2. the frequency generator adopts an analog element, is complex to debug and is not easy to control. The resistance and capacitance parameters of the frequency-selecting element can change in the using process, and the frequency-selecting element needs to be debugged frequently, so that the generator is easy to damage due to the frequency change in use.

3. Because the continuous frequency modulation of one ultrasonic generator cannot be realized by replacing the circuit board when the output frequency is changed by using the analog element.

In view of the above technical problems, the inventor of the present application proposed a new and inventive utility model entitled "a control system for ultrasonic cleaning equipment (application No. 201520291652.5, publication No. CN 20467066U)" on 5/7/2015, wherein the above patent scheme can realize multi-frequency output by one generator by setting three frequencies, thereby reducing the cost of teaching materials, but the control system for ultrasonic cleaning equipment has a large volume and a complex peripheral circuit, and thus needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, a supersound cleaning equipment control system is proposed.

In order to achieve the above purpose, the technical scheme of the utility model is that: a control system of ultrasonic cleaning equipment comprises an ultrasonic generator circuit, a control panel circuit and a frequency modulation control circuit which are connected with each other, wherein the control panel circuit is externally connected with an operation panel, the generator circuit comprises a power supply, a power amplification module, a driving module and a matching inductance module, the power supply is used for supplying power to the power amplification module, the driving module is used for driving the power amplification module, and the driving module comprises a driving board interface;

the matching inductance module comprises two matching inductors which are connected in parallel and have different frequencies, and the two matching inductors are connected with a power supply through a step-up transformer,

the booster transformer and the drive plate interface are arranged in parallel, one end of the drive plate interface is connected with one electrode of the power supply through a high-power rectifier bridge, and the other end of the drive plate interface is connected with the other electrode of the power supply through the drive power supply isolator and the power amplification module in sequence.

In the above technical scheme, the power amplifier module includes two sets of power amplification circuit groups arranged in parallel, each set of power amplification circuit group is respectively connected in series with a capacitor, and the two sets of power amplification circuit groups are connected with the power supply through the transformer.

In the above technical solution, each power amplification circuit group is composed of two power amplification circuits connected in series.

In the technical scheme, the ultrasonic resonance power amplifying tube in each power amplifying circuit is connected with a fuse in series.

In the above technical solution, the high-power rectifier bridge includes a rectifier bridge and a capacitor filter connected in parallel, and a choke coil is disposed between the rectifier bridge and the capacitor filter.

In the above technical solution, the matching inductance module includes a multi-frequency ultrasonic vibrator, the multi-frequency ultrasonic vibrator is connected in parallel with the matching inductor, and a step-up transformer is provided between the matching inductor and the power supply.

In the above technical solution, the control panel circuit includes a panel operation function control IC, a panel timing control IC and a display tube which are connected to each other, and the panel operation function control IC, the panel timing control IC and the display tube are electrically connected to the operation panel.

In the above technical solution, the frequency modulation control circuit includes a current correction potentiometer, and the current correction potentiometer is used to adjust the operating frequency of the generator.

The utility model provides a but in certain extent continuous frequency modulation's generator, adjust this frequency section through the frequency modulation potentiometre and can change ultrasonic frequency cleaning equipment cleaning process when needing to use, change a generator of traditional generator one frequency channel.

The two matching inductors of the utility model can simultaneously control the two vibrating plates to work, thus reducing the use of the ultrasonic generator; and simultaneously, the utility model discloses still change the matching inductance frequency into 40 ~ 100KHZ (adjustable), like this, the utility model discloses both can the multifrequency, also can control many shakes the board.

The utility model has the advantages of small volume, simple peripheral circuit, stable ultrasonic effect, high conversion efficiency, strong anti-interference capability and self frequency tracking function, ensures that the machine is in the best working state all the time, and can exert the potential of the ultrasonic transducer to the maximum extent; meanwhile, the generator uses an RS-485 control circuit, the remote control distance can reach 100 meters at most, and the state of the generator is convenient to observe and control. Today, where labor cost materials are increasingly high, it is a development trend of every enterprise to reduce material costs and save materials, so it is a necessity that generator functions meet various cleaning process change requirements.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic block diagram of a control system of the ultrasonic cleaning apparatus of the present invention.

Fig. 2 is a schematic circuit diagram of an ultrasonic generator in the control system of the ultrasonic cleaning device of the present invention.

Fig. 3 is a circuit diagram of the frequency modulation control circuit in the control system of the ultrasonic cleaning device of the present invention.

Fig. 4 is a circuit diagram of a control panel in the control system of the ultrasonic cleaning device of the present invention.

Detailed Description

In order to make the technical purpose, technical solution and technical effects of the present invention more clear so as to facilitate those skilled in the art to understand and implement the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1, ultrasonic cleaning equipment control system include interconnect's supersonic generator circuit 3, control panel circuit 8 and frequency modulation control circuit 9, the external operating panel of control panel circuit 8, generator circuit 3 includes power 1, power amplifier module 5, drive module 6 and matching inductance module 4, power 1 is used for supplying power for power amplifier module 5, drive module 6 is used for driving power amplifier module 5, drive module 6 includes drive plate interface 64.

Meanwhile, referring to the patent (title of the invention: an ultrasonic cleaning equipment control system, application No. 201520291652.5, publication No. CN20467066U) filed by the inventor of the present application in 2015, the generator circuit 3, the control panel circuit 8 and the frequency modulation control circuit 9 are all described in the patent before the inventor, and the difference of the present application with respect to the above-mentioned comparison documents is that:

1. the matching inductance module 4 comprises two matching inductors 42 which are connected in parallel and have different frequencies, and the two matching inductors 42 are connected with the power supply 1 through a step-up transformer 61;

2. the step-up transformer 61 and the drive plate interface 64 are arranged in parallel, one end of the drive plate interface 64 is connected with one electrode of the power supply 1 through the high-power rectifier bridge 2, and the other end of the drive plate interface 64 is connected with the other electrode of the power supply 1 through the drive power supply isolator 63 and the power amplification module 5 in sequence.

In operation, the utility model discloses a generator circuit 3 uses RS-485 control circuit, the utility model discloses predetermine two kinds of frequencies and store, two kinds of matching inductors 268 do respectively: a 40KHZ matched inductor; the 100KHZ matched inductor. When the ultrasonic cleaning device is required to be used, the cleaning process of the ultrasonic frequency cleaning device can be changed by switching to the frequency band, and the fixed configuration of one generator in one frequency band of the traditional generator is changed.

It can be seen from the above comparison that the present invention mainly improves the circuit principle of the generator, and modifies the original three matching inductors 42 arranged in parallel into two matching inductors 42 arranged in parallel. Like this, owing to reduced the use of inductance, reduced the quantity that needs occupy the inductance of great space, consequently, the utility model discloses a volume is littleer for original ultrasonic cleaning equipment's volume.

Referring to fig. 2, the power amplifier module 5 includes two power amplifier circuit groups 51 arranged in parallel, each power amplifier circuit group 51 is respectively connected with a capacitor in series, and the two power amplifier circuit groups 51 are connected with the power supply 1 through a transformer 62. Preferably, each of the power amplifying circuit groups 51 is composed of two power amplifying circuits connected in series. The two power amplification circuit groups 51 respectively adopt two power amplification tubes connected in series, on one hand, the power can be increased, and on the other hand, the redundant design is adopted, so that when one power amplification tube is damaged, the whole power amplification circuit group cannot be paralyzed.

Referring to fig. 2, the ultrasonic resonance power amplifying tube 53 of each power amplifying circuit is connected in series with a fuse 54. Thus, the safety of the circuit of the present invention can be further increased by the fuse 54.

Referring to fig. 2, the high power rectifier bridge 2 includes two parallel rectifier bridges and a capacitor filter, and a choke coil 41 is disposed between the rectifier bridges and the capacitor filter. A rectifying and filtering circuit 2 is arranged between a power supply 1 and a drive board interface 64, the rectifying and filtering circuit 2 comprises a rectifying bridge and a capacitive filter which are connected in parallel, AC22V is input, stable direct-current voltage is obtained through rectifying and filtering, power is supplied to a half-bridge circuit, and a choke coil 41 is arranged between the rectifying bridge and the capacitive filter.

Referring to fig. 2, the matching inductance module 4 includes a multifrequency ultrasonic vibrator 43, the multifrequency ultrasonic vibrator 43 is connected in parallel with the matching inductor 42, and a step-up transformer 61 is disposed between the matching inductor 42 and the power supply 1.

Referring to fig. 4, the control panel circuit 8 includes a panel operation function control IC81, a panel timing control IC82 and a display tube 83 connected to each other, and the panel operation function control IC81, the panel timing control IC82 and the display tube 83 are electrically connected to the operation panel.

Referring to fig. 3, the fm control circuit 9 includes a current correction potentiometer 91, and the current correction potentiometer 91 is used for adjusting the operating frequency of the generator.

The utility model can realize multi-frequency output through two preset frequencies, and when the ultrasonic cleaning device needs to be used, the cleaning process of the ultrasonic frequency cleaning device can be changed by switching to the frequency band, so that one generator in one frequency band of the traditional generator is changed; the control system has simple structure, convenient debugging and easy control; through the multi-frequency output combination, the multi-frequency output can be realized by only using one ultrasonic generator, the material cost is reduced, and the material is saved.

The utility model discloses ultrasonic cleaning equipment operating panel includes pilot lamp, switch, operation button, warning code, warning reason. Wherein the functions of the operation panel are as follows:

after the machine is started and the debugging is finished, the display panel can display the instant current/percentage and the ultrasonic working frequency.

In actual operation, the utility model discloses ultrasonic cleaning equipment control system transfers quick-witted step:

1. the shell is opened, a power line is connected, and then a power switch is turned on.

2. Pressing the Mode button, switching the display Mode to the frequency display Mode, and pressing the Fre button to see whether the working frequencies of the generator are consistent with the frequency of the transducer. If not, the potentiometer is adjusted to adjust the operating frequency to be consistent with the frequency of the transducer.

3. The output end of the generator is connected with a load (transducer). The generator is in working state by pressing the working on/off button, and the frequency indicator light flickers at the moment.

4. And pressing a Mode key to adjust the display Mode to the current display Mode. And adjusting the power increasing/decreasing button to enable the working current of the ultrasonic generator to meet the working requirement of the load. And if the displayed current value is inconsistent with the actual current value, adjusting the current correction potentiometer key.

5. If the current does not meet the requirement, the power supply is turned off, the aluminum pressing sheet for fixing the matching inductor is loosened, the power supply switch is turned on after the original matching gasket is drawn out to adjust the power of the frequency potentiometer to change the amplitude range of the frequency (the frequency of the 28KHZ transducer is 26KHZ-31KHZ, and the frequency of the 40KHZ transducer is 36KHZ-41KHZ), the power is adjusted to the maximum, the magnetic core of the matching inductor is pulled by hands, and the change of the ammeter is observed. The ammeter has rising change in the pulling process, and will fall when the ammeter shows that the current rises to the maximum matching current value. When the amplitude of the matching current value is an ideal value, the matching gasket is used for directly connecting the pad to the matching inductor until the maximum matching current value is reached (two sides of the magnetic core are symmetrically arranged).

The current during debugging and using process does not exceed the maximum output current (namely working current) of the generator, otherwise the generator can be damaged. The rated current is calculated by 0.13A for each transducer during debugging, and the current can be properly reduced to 0.12A when the number of the transducers is large.

In actual operation, the utility model discloses ultrasonic cleaning equipment control system transfers quick-witted attention item:

1. the load (transducer) is connected to the output of the generator, and the display box is connected to the control port, as shown in fig. 4. Note: please connect as + -pole correctly.

2. Frequency debugging: the generator is connected with a power supply, the shell is opened, the MODE key on the display box is pressed, the power switch is turned on, the frequency adjustment potentiometer can be adjusted according to the display frequency on the display box at the moment, and the frequency of the generator is adjusted to be close to the connected load frequency. The RST key on the display box is pressed for 3 seconds, the generator enters an automatic frequency tracking state, the frequency tracking duration is about 20 seconds, the current display nixie tube on the display panel displays the U-S state, the frequency tracking range is plus or minus 500HZ, and after the frequency tracking is finished, the frequency display nixie tube displays the frequency after the frequency tracking.

3. Current correction: after the frequency is debugged, a P + key of a display box of the generator is pressed to the maximum current, at the moment, the display current on the generator and the actual current of the generator work are corrected to be consistent through a current correction potentiometer, and if the current of the generator is consistent with the actual current, the current is skipped.

4. Current debugging (matching inductance debugging): after the current is corrected, if the working current does not meet the requirement (is smaller), the matching inductance on the generator is adjusted, the inductance of the matching inductance can be changed by increasing or decreasing the gap of the magnetic core of the matching inductance, and when the inductance of the matching inductance and the load reach the optimal LC resonance, the current is in the maximum state.

5. Current commissioning (high frequency transformer commissioning): when the current does not meet the requirement after the matching inductor is adjusted to the optimal state, the gear of the high-frequency transformer can be changed, the gear of the transformer has three gears, the current of the gear 1 is the lowest, the current of the gear 2 is the second, and the current of the gear 3 is the highest.

6. Maximum alarm current/minimum alarm current setting: the maximum working alarm current can be set by pressing the MODE + plus key and the minimum working alarm current can be set by pressing the MODE + minus key and the plus key.

7. And after the steps are adjusted, switching on and off the power supply again, starting the ultrasonic wave, pressing an add-subtract key in a current mode, and increasing or reducing the current to the required current.

In actual operation, the current in debugging and using processes does not exceed the maximum output current (namely working current) of the generator, otherwise the generator can be damaged. In actual operation, the rated current during debugging is calculated according to 0.13A of each transducer, and the current can be properly reduced to 0.12A when the number of the transducers is large.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. A control system of ultrasonic cleaning equipment comprises an ultrasonic generator circuit (3), a control panel circuit (8) and a frequency modulation control circuit (9) which are connected with each other, wherein the control panel circuit (8) is externally connected with an operation panel, the generator circuit (3) comprises a power supply (1), a power amplification module (5), a driving module (6) and a matching inductance module (4), the power supply (1) is used for supplying power to the power amplification module (5), the driving module (6) is used for driving the power amplification module (5), and the driving module (6) comprises a driving plate interface (64);

the method is characterized in that:

the matching inductance module (4) comprises two matching inductors (42) which are connected in parallel and have different frequencies, and the two matching inductors (42) are connected with the power supply (1) through a step-up transformer (61),

the booster transformer (61) and the drive plate interface (64) are arranged in parallel, one end of the drive plate interface (64) is connected with one electrode of the power supply (1) through the high-power rectifier bridge (2), and the other end of the drive plate interface (64) is connected with the other electrode of the power supply (1) through the drive power supply isolator (63) and the power amplification module (5) in sequence.

2. The ultrasonic cleaning apparatus control system of claim 1, wherein: the power amplification module (5) comprises two groups of power amplification circuit groups (51) which are arranged in parallel, each group of power amplification circuit groups (51) is respectively connected with a capacitor in series, and the two groups of power amplification circuit groups (51) are connected with the power supply (1) through a transformer (62).

3. The ultrasonic cleaning apparatus control system of claim 2, wherein: each group of power amplifying circuit (51) consists of two power amplifying circuits connected in series.

4. The ultrasonic cleaning apparatus control system of claim 3, wherein: the ultrasonic resonance power amplifying tube (53) in each power amplifying circuit is connected with a fuse (54) in series.

5. An ultrasonic cleaning apparatus control system according to any one of claims 1 to 4, wherein: the high-power rectifier bridge (2) comprises a rectifier bridge and a capacitor filter which are connected in parallel, and a choke coil (41) is arranged between the rectifier bridge and the capacitor filter.

6. The ultrasonic cleaning apparatus control system of claim 5, wherein: the matching inductance module (4) comprises a multi-frequency ultrasonic vibrator (43), the multi-frequency ultrasonic vibrator (43) is connected with the matching inductor (42) in parallel, and a boosting transformer (61) is arranged between the matching inductor (42) and the power supply (1).

7. The ultrasonic cleaning apparatus control system of claim 1, wherein: the control panel circuit (8) comprises a panel operation function control IC (81), a panel timing control IC (82) and a display tube (83) which are connected with each other, wherein the panel operation function control IC (81), the panel timing control IC (82) and the display tube (83) are electrically connected with an operation panel.

8. The ultrasonic cleaning apparatus control system of claim 1, wherein: the frequency modulation control circuit (9) comprises a current correction potentiometer (91), and the current correction potentiometer (91) is used for adjusting the working frequency of the generator.