CN206838452U - A kind of ultrasonic system - Google Patents
A kind of ultrasonic system Download PDFInfo
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- CN206838452U CN206838452U CN201720697399.2U CN201720697399U CN206838452U CN 206838452 U CN206838452 U CN 206838452U CN 201720697399 U CN201720697399 U CN 201720697399U CN 206838452 U CN206838452 U CN 206838452U
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- ultrasonic
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- high frequency
- transducer
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Abstract
It the utility model is related to a kind of ultrasonic system,Including supersonic generator,High frequency cable,Ultrasonic transducer,Modulator,Mould and base,220v,Frequency 50Hz civil power changes into frequency through supersonic generator,The controllable simple alternating current electric signal of phase,Simple alternating current electric signal is transferred to ultrasonic transducer through high frequency cable,Ultrasonic transducer includes containment vessel,End pressure block afterwards,Piezoelectric ceramics group and preceding drive block,Modulator includes input,Gain end and output end,Electric signal is reliable and stable to be persistently output to ultrasonic transducer,The extension compressive deformation of piezoelectric ceramics group generating period produces ultrasonic amplitude,The premenstrual drive block of ultrasonic wave enters modulator,Modulator carries out gain amplification to ultrasonic wave,Mould is set to produce dither,Processing effect is good,In addition,Thin-walled shock-damping structure is in the case where transducer containment vessel outside dimension is constant,Increase the power and amplitude of transducer,Extend the service life of transducer.
Description
Technical field
It the utility model is related to ultrasonic equipment field, and in particular to a kind of ultrasonic system.
Background technology
Ultrasonic wave be a kind of frequency be higher than 20000HZ sound wave, its good directionality, penetration capacity is strong, be easily obtained compared with
The acoustic energy of concentration, ultrasonic wave in communication process, do not hear typically by human ear, and ultrasonic wave can cause medium particle alternately to compress
With extension, the change of pressure is constituted, this pressure will cause mechanical effect, be based on the These characteristics of ultrasonic wave, ultrasound
Ripple is just increasingly used for welding, and cuts, and crushes, field of coating, ultrasonic wave is that the thing that need to be processed is delivered to using dither ripple
Body surface face,（It is mobile）In the case of pressurization, product body surface molecule phase mutual friction is melted local heating, there is processing
Speed is fast, intensity is high, good airproof performance, cost are cheap, cleanliness without any pollution, not disfiguring workpiece many advantages, such as.
Existing ultrasonic system is mainly made up of supersonic generator and ultrasonic transducer, and supersonic generator will
50/60HZ electric currents are converted into 15,20,30 or 40 KHz high-frequency electrical energy, the high-frequency electrical energy changed by transducer again by
The transfer mechanical movements of equal frequencies is converted into mould, the vibrational energy received is delivered on workpiece by mould,
Ul-trasonic irradiation can produce the dither of tens of thousands of times per second when work piece interface, produce localized hyperthermia, melt product,
Existing ultrasonic system mainly has following defect：First, the output current of supersonic generator is unstable, ultrasonic waves are caused
Mechanical oscillation are suddenly big or suddenly small on energy device, cause processing effect unstable；Second, the gain effect of ultrasonic transducer is bad, if single
It is pure to improve gain effect by increasing the piezoelectric ceramic piece quantity of transducer, material cost and energy consumption, machine loading can be increased
It is fragile；Three are the absence of feedback device, its efficiency highest when ultrasonic transducer is operated in resonant frequency point, and work is most steady
It is fixed, but actual conditions are that the resonant frequency point of ultrasonic transducer can change due to reasons such as assembling, agings, supersonic generator
It can not in time be adjusted according to the change of resonant frequency point, cause transducer efficiency low, processing effect is poor.
Utility model content
In order to solve the drawbacks described above present in ultrasonic system in the prior art, the utility model provides ultrasonic wave system
System, concrete technical scheme are as follows：
A kind of ultrasonic system, including supersonic generator, high frequency cable, ultrasonic transducer, modulator, mould and bottom
Seat, supersonic generator inside installation fpga chip, D/A converter and DDS generators, 220v, frequency 50Hz civil power warp
Supersonic generator changes into the controllable simple alternating current electric signal of frequency, phase, and simple alternating current electric signal transmits through high frequency cable
To ultrasonic transducer, ultrasonic transducer includes containment vessel, rear end pressure block, piezoelectric ceramics group and preceding drive block, modulator bag
Input, gain end and output end are included, rear end pressure block, piezoelectric ceramics group and preceding drive block are arranged on inside containment vessel, piezoelectricity pottery
Porcelain group is arranged between rear end pressure block and preceding drive block, the input of the preceding drive block of transducer connection modulator, input and
Output end realizes that transition connects by the gain end of circular arc, and the diameter of input is more than the diameter at gain end, output end installation
Mould, base are located at below mould（Front）, processed product is placed on base.
As a kind of preferred scheme of the present utility model, in addition to computer numeral control device, computer numeralization control
The parameter with time, energy, absolute distance, relative depth, electron pressure, detecting, peak value, segmented welding is provided with device to adjust
Module is saved, frequency setting, tracking and compensating, the amplitude needed for computer numeral control device detection ultrasonic transducer set, put
Big matching output is so as to pass through the power output of parameter adjustment module control supersonic generator, amplitude, energy.
As a kind of preferred scheme of the present utility model, installation thin-walled shock-damping structure, thin-walled damping below the containment vessel
Structure includes shock-absorbing support ring, and shock-absorbing support ring is arranged on below containment vessel inner chamber and is sleeved on piezoelectric ceramics group outer circumferential side, protects
The difference of protective case external diameter and shock-absorbing support ring internal diameter is less than 2mm~6mm, is formed between piezoelectric ceramics group and containment vessel external diameter and radially subtracted
Shake space, and shock-absorbing support ring is located in radial vibration-reducing space, and radial vibration-reducing space width is less than 4mm~10mm.
As a kind of preferred scheme of the present utility model, the frequency of the ultrasonic transducer is 20KHZ, 30KHZ,
35KHZ、40KHZ。
As a kind of preferred scheme of the present utility model, the piezoelectric ceramics group is made up of multiple piezoelectric ceramic pieces, each
The both sides up and down of piezoelectric ceramic piece are provided with electrode slice, and high frequency voltage input interface is installed above containment vessel, and high frequency cable connection is high
Frequency control source interface one end, the high frequency voltage input interface other end pass through wire connection electrode piece.
As a kind of preferred scheme of the present utility model, the preceding drive block, modulator input are respectively equipped with position phase
Corresponding connecting screw hole, the mating connection one that preceding drive block, modulator input pass through stud and connecting screw hole.
As a kind of preferred scheme of the present utility model, the preceding drive block, the top office of output end are designed with amplifying
The amplification radian of ultrasonic amplitude, preceding drive block, the section of output end are trumpet type.
As a kind of preferred scheme of the present utility model, the supersonic generator has 2~7, connected by high frequency cable
2~7 combined type transducers are connect, it is in parallel synchronous to ultrasonic transducer conveying high frequency electrical signal.
As a kind of preferred scheme of the present utility model, the modulator uses thin-walled shock-damping structure, keeps former installation chi
It is very little, increase modulator input diameter, increase modulator gain scale.
As a kind of preferred scheme of the present utility model, system has multistage bond pattern, can divide in a welding process
Section setting multistage welding parameter, every section of welding parameter is independently arranged and runs, welding parameter have " time ", " energy ", " depth ",
" pressure ", " delay ", " amplitude ", " speed ".
The beneficial effects of the utility model：Installation fpga chip, D/A converter and DDS hairs inside supersonic generator
Raw device can the controllable simple alternating current electric signal of frequency, phase, electric signal is reliable and stable to be persistently output to ultrasonic transducer, piezoelectricity
The extension compressive deformation of ceramics group generating period produces ultrasonic amplitude, and the premenstrual drive block of ultrasonic wave enters modulator, amplitude modulation
Device carries out gain amplification to ultrasonic wave, mould is produced dither, processing effect is good, and gain effect is obvious, in addition, thin-walled subtracts
Shake structure is in the case where transducer containment vessel outside dimension is constant, the effective size for reducing vibration-proof structure, is increased simultaneously
The external diameter of the interior circular diameter and piezoelectric ceramic piece of containment vessel, increase the power and amplitude of transducer, extend transducer uses the longevity
Life, piezoelectric ceramics group is effectively protected, avoid piezoelectric ceramic piece from being damaged when vibrating with containment vessel collision.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model；
Fig. 2 is the structural representation that 7 20KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 3 is the arrangement schematic diagram that 7 20KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 4 is the structural representation that 3 20KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 5 is the arrangement schematic diagram that 3 20KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 6 is the schematic front view that single 20KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 7 is the schematic diagram of embodiment 1 that 30KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 8 is the schematic diagram of embodiment 2 that 30KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Fig. 9 is the schematic diagram of embodiment 1 that 35KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Figure 10 is the schematic diagram of embodiment 2 that 35KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Figure 11 is the schematic diagram of embodiment 1 that 40KHZ ultrasonic transducers of the present utility model are arranged on modulator；
Figure 12 is the schematic diagram of embodiment 2 that 40KHZ ultrasonic transducers of the present utility model are arranged on modulator.
In figure, 1-supersonic generator, 2-high frequency cable, 3-ultrasonic transducer, 301-containment vessel, 302-after
End pressure block, 303-piezoelectric ceramics group, 304-preceding drive block, 305-shock-absorbing support ring, 306-high frequency voltage input interface,
4-modulator, 401-input, 402-gain end, 403-output end, 5-mould, 6-base.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described further：
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer ", " radial direction " or position relationship are to be closed based on orientation shown in the drawings or position
System, it is for only for ease of and describes the utility model and simplified description, rather than the position or element of instruction or hint meaning is necessary
With specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition,
Term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded
The concrete meaning of term in the present invention.
As shown in Figures 1 to 3, a kind of ultrasonic system, including supersonic generator 1, high frequency cable 2, ultrasonic transducer
3rd, modulator 4, weld mold 5 and weld nest 6,220v, frequency 50Hz civil power change into frequency, phase through supersonic generator 1
Controllable simple alternating current electric signal, simple alternating current electric signal are high frequency electrical signal, and simple alternating current electric signal transmits through high frequency cable 2
To ultrasonic transducer 3, ultrasonic transducer 3 includes containment vessel 301, rear end pressure block 302, piezoelectric ceramics group 303 and preceding driving
Block 304, modulator 4 include input 401, gain end 402 and output end 403, rear end pressure block 302, piezoelectric ceramics group 303 and preceding
Drive block 304 is arranged on inside containment vessel 301, and piezoelectric ceramics group 303 is arranged between rear end pressure block 302 and preceding drive block 304,
The preceding drive block 304 of transducer connects the input 401 of modulator, the gain that input 401 and output end 403 pass through circular arc
End 402 realizes that transition connects, and the diameter of input 401 is more than the diameter at gain end 402, the installation mold 5 of output end 403, base 6
Positioned at the lower section of mould 5, processed product is placed on base 6, and this ultrasonic system can be used for welding, and cut, and crush, application
Deng.
Specifically, the inside of supersonic generator 1 installation fpga chip, D/A converter and DDS generators, fpga chip
On be integrated with circuit module, D/A converter is also known as digital analog converter, and digital quantity signal is transformed into analog signal, clock frequency
After given, the frequency of output signal depends on FREQUENCY CONTROL numeral, and frequency resolution depends on accumulator digit, phase resolution
Depending on ROM address wire digit, amplitude quantizing depends on ROM data bit word length and D/A converter digit, DDS generators
For Direct Digital Synthesizer, sine wave signal is processed into digital signal synthesis
Specifically, ultrasonic system also includes computer numeral control device, tool is provided with computer numeral control device
Having time, energy, absolute distance, relative depth, electron pressure, detecting, peak value, the parameter adjustment module of segmented welding, computer
Frequency setting, tracking and compensating, amplitude set needed for Digital Control device detection ultrasonic transducer 3, amplification matching output,
Supersonic generator is fed back to after drawing resonant frequency point data, computer numeral control device is controlled by parameter adjustment module
The power output of supersonic generator 1, amplitude, energy, system have multistage bond pattern, can be segmented in a welding process
Set multistage welding parameter, every section of welding parameter is independently arranged and runs, welding parameter have " time ", " energy ", " depth ",
" pressure ", " delay ", " amplitude ", " speed ".
Specifically, the lower section of the containment vessel 301 installation thin-walled shock-damping structure, thin-walled shock-damping structure include shock-absorbing support ring
305, shock-absorbing support ring 305 is arranged on below the inner chamber of containment vessel 301 and is sleeved on the outer circumferential side of piezoelectric ceramics group 303, containment vessel 301
The difference of external diameter and the internal diameter of shock-absorbing support ring 305 is less than 2mm~6mm, is formed radially between piezoelectric ceramics group 303 and containment vessel 301
Damping space, shock-absorbing support ring 305 are located in radial vibration-reducing space, and radial vibration-reducing space width is less than 4mm~10mm, are not changing
On the premise of becoming transducer gain effect, modulator 4 uses thin-walled shock-damping structure, keeps former installation dimension, and it is defeated to increase modulator
Enter and hold diameter, increase modulator gain scale, damping effect is obvious, and piezoelectric ceramics group 303 is hardly damaged.
Specifically, the diameter of input 401 is more than the diameter at gain end 402, increase structure gain, rear side pressure as required
Block 302 is fixed, is shaken by the piezoelectric ceramics group 303 of transducer and is driven by the connection of preceding drive block 304 and input 401
Modulator 4 vibrates, and the modulator structure being engaged using input 401, gain end 402 and output end 403, can overcome increase
The technical problem that structure gain is limited by shape and size, structure gain is improved so as to reach not limited by shape and size
Technique effect.
Specifically, the ultrasonic transducer 3 has 2~7, preferably 3, it is synchronous to convey high frequency to ultrasonic transducer
Electric signal, ultrasonic transducer 3 are arranged on modulator 4 by screw rod connection, as shown in figures 4-6, the frequency of ultrasonic transducer 3
Rate is 20KHZ（18.50-20.50KHZ）Structure, the external diameter of piezoelectric ceramics group 303（φ50-φ60mm）As shown in FIG. 7 and 8,
The frequency of ultrasonic transducer 3 is 30KHZ（29.50-30.50KHZ）Structure, the external diameter of piezoelectric ceramics group 303（φ35-φ
50mm）As shown in Figures 9 and 10, the frequency of ultrasonic transducer 3 is 35KHZ（34.50-35.50KHZ）Structure, piezoelectric ceramics group
303 external diameters（φ30-φ35mm）As shown in FIG. 11 and 12, the frequency of ultrasonic transducer 3 is 40KHZ（38.50-40.50KHZ）
Structure, the external diameter of piezoelectric ceramics group 303（φ30-φ40mm）.
Specifically, the piezoelectric ceramics group 303 is made up of multiple piezoelectric ceramic pieces, the both sides up and down of each piezoelectric ceramic piece
Provided with electrode slice, the top of containment vessel 301 installation high frequency voltage input interface 306, high frequency cable connection high frequency voltage input interface
306 one end, the other end of high frequency voltage input interface 306 facilitate power delivery, the preceding drive block by wire connection electrode piece
304th, input 401 is respectively equipped with the corresponding connecting screw hole in position, and preceding drive block 304, input 401 pass through stud
With the mating connection one in connecting screw hole.
Specifically, the top office of the preceding drive block 304, output end 403 is designed with amplifying the amplification of ultrasonic amplitude
Radian, preceding drive block 304, the section of output end 403 are trumpet type, effective to reduce by the smooth excessive of horn-type structure
Fatigue of materials, so as to further increase structure gain, in addition, the preceding drive block 304, input 401 are respectively equipped with position
Corresponding connecting screw hole, the mating connection one that preceding drive block, input pass through stud and connecting screw hole.
Specifically, the piezoelectric ceramics group 303 is located at transducer body central axis, can reduce piezoelectric ceramic piece group by
In the caloric value that vibration is brought, because transducer is compressed in the presence of alternating current with the extension of resonant frequency generating period
Deformation, while axial amplitude is exported, radially it also can periodically produce deformation.In ultrasonic transducer both ends axial deformation
Maximum, radial direction deformation is minimum, and intermediary locations are antithesis, and radial direction deformation is maximum, and axial deformation is minimum, so, works as piezoelectricity
When potsherd is close to center, because axial deformation is minimum, so the caloric value of its own will be relatively low.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations, for the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (10)
- A kind of 1. ultrasonic system, it is characterised in that：Including supersonic generator, high frequency cable, ultrasonic transducer, amplitude modulation Device, mould and base, supersonic generator inside installation fpga chip, D/A converter and DDS generators, 220v, frequency 50Hz civil power changes into the controllable simple alternating current electric signal of frequency, phase, simple alternating current electric signal warp through supersonic generator High frequency cable is transferred to ultrasonic transducer, and ultrasonic transducer includes containment vessel, rear end pressure block, piezoelectric ceramics group and preceding driving Block, modulator include input, gain end and output end, and rear end pressure block, piezoelectric ceramics group and preceding drive block are arranged on containment vessel Inside, piezoelectric ceramics group are arranged between rear end pressure block and preceding drive block, the input of the preceding drive block connection modulator of transducer End, input realize that transition connects with output end by the gain end of circular arc, and the diameter of input is more than the diameter at gain end, Output end installation mold, base are located at below mould, and processed product is placed on base.
- A kind of 2. ultrasonic system according to claim 1, it is characterised in that：Also include computer numeral control device, Be provided with computer numeral control device with the time, energy, absolute distance, relative depth, electron pressure, detecting, peak value, point The parameter adjustment module of section welding, frequency setting, tracking needed for computer numeral control device detection ultrasonic transducer are mended Repay, amplitude setting, amplification matching output so as to by parameter adjustment module control the power output of supersonic generator, amplitude, Energy.
- A kind of 3. ultrasonic system according to claim 1, it is characterised in that：Installation thin-walled damping below the containment vessel Structure, thin-walled shock-damping structure include shock-absorbing support ring, and shock-absorbing support ring is arranged on below containment vessel inner chamber and is sleeved on piezoelectricity pottery The difference of porcelain group outer circumferential side, containment vessel external diameter and shock-absorbing support ring internal diameter is less than 2mm~6mm, piezoelectric ceramics group and containment vessel external diameter Between form radial vibration-reducing space, shock-absorbing support ring be located in radial vibration-reducing space, radial vibration-reducing space width less than 4mm~ 10mm。
- A kind of 4. ultrasonic system according to claim 1, it is characterised in that：The frequency of the ultrasonic transducer is 20KHZ、30KHZ、35KHZ、40KHZ。
- A kind of 5. ultrasonic system according to claim 1, it is characterised in that：The piezoelectric ceramics group is made pottery by multiple piezoelectricity Ceramics forms, and the both sides up and down of each piezoelectric ceramic piece are provided with electrode slice, and high frequency voltage input interface is installed above containment vessel, high Frequency cable connection high frequency voltage input interface one end, the high frequency voltage input interface other end pass through wire connection electrode piece.
- A kind of 6. ultrasonic system according to claim 1, it is characterised in that：The preceding drive block, modulator input The corresponding connecting screw hole in position is respectively equipped with, preceding drive block, modulator input pass through stud and connecting screw hole Mating connection one.
- A kind of 7. ultrasonic system according to claim 1, it is characterised in that：The preceding drive block, the top of output end Office is designed with amplifying the amplification radian of ultrasonic amplitude, and preceding drive block, the section of output end are trumpet type.
- A kind of 8. ultrasonic system according to claim 1, it is characterised in that：The supersonic generator has 2~7, 2~7 combined type transducers are connected by high frequency cable, it is in parallel synchronous to ultrasonic transducer conveying high frequency electrical signal.
- A kind of 9. ultrasonic system according to claim 3, it is characterised in that：The modulator uses thin-walled damping knot Structure, former installation dimension is kept, increase modulator input diameter, increase modulator gain scale.
- A kind of 10. ultrasonic system according to claim 1, it is characterised in that：System has multistage bond pattern, can be one In secondary welding process, setting stepwise multistage welding parameter, every section of welding parameter is independently arranged and run, welding parameter have " when Between ", " energy ", " depth ", " pressure ", " delay ", " amplitude ", " speed ".
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720697399.2U CN206838452U (en) | 2017-06-15 | 2017-06-15 | A kind of ultrasonic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720697399.2U CN206838452U (en) | 2017-06-15 | 2017-06-15 | A kind of ultrasonic system |
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| CN206838452U true CN206838452U (en) | 2018-01-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435522A (en) * | 2018-03-15 | 2018-08-24 | 广州市科普超声电子技术有限公司 | A kind of ultrasound transducer means, wire bonding and ultrasonic welding system |
| CN110586569A (en) * | 2019-09-05 | 2019-12-20 | 向国强 | Ultrasonic vibration box and ultrasonic transducer thereof |
| CN113617621A (en) * | 2020-05-09 | 2021-11-09 | 肖清波 | Ultrasonic power synthesis transducer |
| CN113634474A (en) * | 2021-08-24 | 2021-11-12 | 深圳市特力威科技有限公司 | Multi-dimensional ultrasonic vibration head and machine tool with same |
| CN115162057A (en) * | 2022-07-25 | 2022-10-11 | 永发（江苏）模塑包装科技有限公司 | Ultrasonic wave reinforced dewatering equipment for pulp molding and using process |
-
2017
- 2017-06-15 CN CN201720697399.2U patent/CN206838452U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435522A (en) * | 2018-03-15 | 2018-08-24 | 广州市科普超声电子技术有限公司 | A kind of ultrasound transducer means, wire bonding and ultrasonic welding system |
| CN110586569A (en) * | 2019-09-05 | 2019-12-20 | 向国强 | Ultrasonic vibration box and ultrasonic transducer thereof |
| CN113617621A (en) * | 2020-05-09 | 2021-11-09 | 肖清波 | Ultrasonic power synthesis transducer |
| CN113634474A (en) * | 2021-08-24 | 2021-11-12 | 深圳市特力威科技有限公司 | Multi-dimensional ultrasonic vibration head and machine tool with same |
| CN113634474B (en) * | 2021-08-24 | 2023-06-23 | 深圳市特力威科技有限公司 | Multidimensional ultrasonic vibration head and machine tool with same |
| CN115162057A (en) * | 2022-07-25 | 2022-10-11 | 永发（江苏）模塑包装科技有限公司 | Ultrasonic wave reinforced dewatering equipment for pulp molding and using process |
| CN115162057B (en) * | 2022-07-25 | 2024-02-02 | 永发（江苏）模塑包装科技有限公司 | Ultrasonic reinforced dewatering equipment for pulp molding and use process thereof |
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