CN114653566B - Ultrasonic biomaterial welding machine and ultrasonic biomaterial welding method - Google Patents
Ultrasonic biomaterial welding machine and ultrasonic biomaterial welding method Download PDFInfo
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- CN114653566B CN114653566B CN202210299258.0A CN202210299258A CN114653566B CN 114653566 B CN114653566 B CN 114653566B CN 202210299258 A CN202210299258 A CN 202210299258A CN 114653566 B CN114653566 B CN 114653566B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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Abstract
The invention discloses an ultrasonic biomaterial welding machine and an ultrasonic biomaterial welding method, wherein the welding machine comprises a welding machine body, a handle and a power line, the welding machine body comprises a shell and a circuit which is arranged in the shell and used for generating a resonance signal, and a handle connecting end 3 used for connecting the handle and a power connecting end used for connecting the power line are arranged on the shell; the energy converter for converting electric energy into ultrasonic waves, the starting switch, the welding head and the plug connector matched with the connecting end of the handle are embedded in the handle, the plug connector is electrically connected with the circuit, and the welding head is connected with the energy converter. The ultrasonic welding machine for the biological materials generates resonance signals through the cooperation of the digital signal generator, the switch circuit, the data processing circuit, the isolation driving circuit, the conversion circuit and the output circuit, the resonance signals are provided for the transducer, then the transducer converts electric energy into ultrasonic waves, the ultrasonic waves have a plasticizing effect on the biological materials, and accordingly the plasticizing welding on the biological materials is achieved.
Description
Technical Field
The invention relates to an ultrasonic biomaterial welding machine and an ultrasonic biomaterial welding method.
Background
Modern medicine is developing in the direction of regenerating and reconstructing damaged human tissues and organs, restoring and enhancing human physiological functions, personalization, and minimally invasive treatment. The conventional materials such as traditional non-living medical metals, polymers, bioceramics and the like can not meet the requirements of medical development, and biomedical material science and engineering face new opportunities and challenges.
Biological materials (Biological materials) are also known as biotechnology or biotechnology. The comprehensive scientific technology of new biological species with specific characters is directionally constructed for the special functions of biological materials and organisms by applying the principles of biology and engineering. Bioengineering was developed in the early 70 s on the basis of molecular biology, cell biology and the like, including genetic engineering, cell engineering, enzyme engineering, fermentation engineering and the like, which are linked with each other, wherein the genetic engineering is used as a basis. Only by modifying organisms through genetic engineering, more and better biological products can be produced according to human desires. The results of genetic engineering are also possible to be converted into products only by fermentation and other engineering.
The biological material refers to a series of properties that should be possessed or achieved by a certain biological function, and is mainly divided into: 1. load bearing or transmitting function: such as artificial bones, joints, teeth, etc., predominate. 2. Controlling blood or body fluid flow function: such as prosthetic valves, blood vessels, etc. 3. Electric, optical and acoustic conduction functions: such as cardiac pacemakers, intraocular lenses, cochlea, and the like. 4. Filling function: such as a filler for cosmetic surgery.
Due to the particularity of the biological material, the biological material becomes one of important products in the medical field, and in the application level, a part made of the biological material needs to be implanted in the affected part of a patient so as to achieve the effects of connection, fixation and the like. There is therefore a need for a product that can effectively weld parts made of biological material.
Disclosure of Invention
The present invention is directed to an ultrasonic biomaterial welder that generates a resonant signal that is provided to a transducer that converts electrical energy into ultrasonic waves for plasticizing the biomaterial.
Therefore, the ultrasonic biomaterial welding machine provided by the invention comprises a welding machine body, a handle and a power line, wherein the welding machine body comprises a shell and a circuit which is arranged in the shell and used for generating a resonance signal, and a handle connecting end used for connecting the handle and a power connecting end used for connecting the power line are arranged on the shell; the handle is embedded to be equipped with and is used for converting electric energy into ultrasonic transducer and starting switch, the circuit includes:
a digital signal generator for generating a digital signal,
the switch circuit is matched with the starting switch, and when the starting switch is pressed down, a digital signal generated by the digital signal generator is accessed into the circuit and outputs two paths of signals;
the data processing circuit is used for processing the two paths of signals output by the switching circuit to form two paths of signal outputs with equal frequency and duty ratio and opposite limits;
the off-drive circuit receives the two paths of signals output by the data processing circuit and outputs the signals when the data processing circuit outputs the signals;
the conversion circuit is used for converting the two paths of signals output by the off-drive circuit into single-ended signals; and
the output circuit is used for filtering the single-ended signal output by the conversion circuit and generating a resonant signal to output;
the output circuit is electrically connected with the handle, so that the output resonance signal is loaded on the transducer, the transducer converts electric energy into ultrasonic waves, and the ultrasonic waves are acted on a welding position of the biological material through a welding head connected with the transducer to realize ultrasonic welding of the biological material;
the power supply connecting end is connected with the electric component in the circuit, and supplies power to the electric component in the circuit when the power line is inserted and connected with the power supply.
Furthermore, the welding machine provided by the invention also comprises a protection device R4 which is connected between the circuit power supply and the power supply end of the conversion circuit in series, so that the autonomous protection of the circuit is realized.
Further, the welding machine provided by the invention also comprises a power supply circuit connected with the power supply connecting end, wherein the power supply circuit comprises a protection device R10, and a power supply is connected through the power supply connecting end and then supplies power to an electric element through the protection device R10.
Further, the power circuit further comprises a light emitting diode D2 connected in series between the power end of the power access terminal P8 and the circuit ground, so that power-on indication is realized.
Further, the switch circuit comprises a photoelectric isolation device U3, the anode of the control side of the photoelectric isolation device U3 is connected with a circuit power supply, and the cathode is connected with a low power supply through a switch; and the input end and the output end of the controlled side of the photoelectric isolation device U3 are used for loading and outputting signals. By adopting the configuration of the photoelectric isolation device U3, the input and the output are effectively isolated while the drive output of the switch circuit is realized, the mutual influence of the input and the output is avoided, and the anti-interference capability and the stability are improved.
Further, the welding machine provided by the invention further comprises a light emitting diode D1 connected between the switch and the photoelectric isolation device U3 in series, and switch-on indication is realized.
Further, the isolation driving circuit comprises an isolation driver U1, an isolation driver U2, a power tube Q1 and a power tube Q2, anodes of control sides of the isolation driver U1 and the isolation driver U2 are connected with a circuit power supply, and cathodes of the isolation driver U1 and the isolation driver U2 are respectively used for loading two paths of signals output by the data processing circuit; the control ends of the power tube Q1 and the power tube Q2 are respectively connected with the output ends of the isolation driver U1 and the isolation driver U2, and the output ends of the power tube Q1 and the power tube Q2 are respectively connected with the input end of the conversion circuit.
Further, the conversion circuit comprises a transformer T1, the primary side of the transformer T1 comprises a connecting end 2, a connecting end 3, a connecting end 4 and a connecting end 5, the connecting end 2 and the connecting end 5 are used as input ends, and the connecting end 3 is connected with a circuit power supply after being connected with the connecting end 4; the secondary side is used as output; the transformer is adopted to form the conversion circuit, and the circuit structure is simple.
Further, the output circuit comprises an inductor L1 and a capacitor C2.
Another objective of the present invention is to provide an ultrasonic biomaterial welding method, which is based on the ultrasonic biomaterial welding machine provided in the present application, and adjusts the frequency and duty ratio of the digital signal generated by the digital signal generator according to the natural frequency of the transducer, and generates a digital signal to be loaded on the switching circuit; applying an acting force on the starting switch to conduct the starting switch, enabling a digital signal to be connected into a circuit and output two paths of signals when the switching circuit works, enabling the data processing circuit to receive the two paths of signals output by the switching circuit to carry out differentiation and phase processing, outputting two paths of signals with equal frequency and duty ratio, outputting the two paths of signals with opposite phases to the isolation driving circuit, enabling the isolation driving circuit to have output and load on the conversion circuit at the moment, enabling the conversion circuit to output a single-ended signal to load on the output circuit, enabling the single-ended signal input by the output circuit to carry out filtering and generate a resonance signal to output and load on the transducer, and enabling the transducer to convert electric energy into ultrasonic waves to act on a biomaterial welding position through a welding head connected with the transducer to achieve ultrasonic welding of the biomaterial.
The invention has the beneficial effects that: the ultrasonic welding machine for the biological materials generates resonance signals through the cooperation of the digital signal generator, the switch circuit, the data processing circuit, the isolation driving circuit, the conversion circuit and the output circuit, the resonance signals are provided for the transducer, then the transducer converts electric energy into ultrasonic waves, the ultrasonic waves have a plasticizing effect on the biological materials, and accordingly the plasticizing welding on the biological materials is achieved.
The configuration of the isolation driving circuit in the welding machine realizes the effective isolation of input and output, avoids the mutual influence of the input and the output to a certain extent, and ensures that the circuit is stable; and moreover, the whole circuit is in a push-pull topological structure by matching with a power device, so that the driving capability of the circuit is improved.
The circuit arranged by the welding machine can be realized by adopting discrete elements, so that the cost is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural view of a welding machine provided by the present invention;
FIG. 2 is a schematic block diagram of the circuitry disposed within the ultrasonic biomaterial welder of the present invention;
FIG. 3 is a schematic circuit diagram of the connection between the switch circuit and the digital processing circuit provided by the present invention;
FIG. 4 is a schematic circuit diagram of the connection of the isolation driving circuit, the conversion circuit and the output circuit provided by the present invention;
FIG. 5 is a schematic circuit diagram of a power circuit provided by the present invention;
fig. 6-7 are schematic diagrams of signal waveforms according to the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Referring to fig. 1, the ultrasonic welding machine for biological materials provided by the present invention comprises a welding machine body 1, a handle 2 and a power line, wherein the welding machine body 2 comprises a housing and a circuit arranged in the housing for generating a resonance signal, and a handle connection end 11 for connecting the handle and a power connection end 12 for connecting the power line are arranged on the housing; the handle 2 is embedded with a transducer for converting electric energy into ultrasonic waves, a starting switch 21, a welding head 22 and a plug connector matched with the handle connecting end 11, the plug connector is electrically connected with a circuit and connected with the handle connecting end 11 in a data line 3 mode to realize the connection of the handle and the circuit, and the welding head 22 is connected with the transducer.
Referring to fig. 2, the circuit disposed in the housing includes a digital signal generator, a switch circuit, a data processing circuit, an isolation driving circuit, a conversion circuit, an output circuit, and a power circuit.
The digital signal generator is used for generating a digital signal and loading the digital signal on the switch circuit; the switch circuit is connected with a connecting end P5 and is connected with the digital signal generator in a data line plugging mode; or the connection terminal P5 is not provided and is directly connected to the switch circuit by a wire.
And the switch circuit is matched with the starting switch, and when the starting switch is pressed down, the digital signal generated by the digital signal generator is connected into the circuit and outputs two paths of signals. Referring to fig. 3, the switching circuit is configured to include a photo-isolation device U3, the anode of the control side of the photo-isolation device U3 is connected to the circuit power supply, and the cathode is connected to the low power supply when the switching action is started; and the input end and the output end of the controlled side of the photoelectric isolation device U3 are used for loading and outputting signals.
The cathode of the control side of the photoelectric isolation device U3 is connected with a connecting end P3 and a connecting end P4 which are used for being connected with the connecting end of the handle; one port of the adjacent port of the connecting end P3 and the connecting end P4 is suspended, one port is connected with a circuit ground and is respectively connected with the switch port of the connecting end of the handle, when the starting switch is switched on, the cathode of the photoelectric isolation device U3 is grounded, the anode of the photoelectric isolation device U3 is connected with a circuit power supply, and at the moment, the control side of the photoelectric isolation device U3 sends out a control signal to enable the controlled side to be conducted, and the signal loaded on the input end is output.
In order to further reduce the interference signal generated when the starting switch acts to enter the circuit, the end of the starting switch connected with the photoelectric isolation device U3 is also connected with the circuit ground through the capacitor C4, and the capacitor C4 is used for filtering and filtering the interference signal generated by the action of the starting switch.
In order to have an indication function when the starting switch is turned on, a light emitting diode D1 for indication is arranged between the starting switch and the photocoupler U3, and a resistor R8 is connected in series between the switch and the light emitting diode D1. The led D1 is configured to be red, blue, yellow or other colors.
Similarly, in order to ensure the stability of the output signal, the output end of the photoelectric isolation device U3 is configured with the grounding of the capacitor C7, so as to realize the filtering of the output signal and ensure the stability of the output signal.
Referring to fig. 3 again, a resistor R11 and a resistor R13 are configured, one end of the resistor R11 and one end of the resistor R13 are respectively connected to the output end of the photoelectric coupling device U3, and the other end is used as two-way output of the switching circuit; the resistor R11 and the resistor R13 and one end connected with the output end of the photoelectric coupling device U3 are also respectively connected with the circuit ground through a resistor R12. When the photoelectric isolation device U3 has output, two paths of signal output are formed through the resistor R11 and the resistor R13 respectively.
Certainly, when the switch circuit is understood, the switch circuit may include two branches, each branch is configured to include a photoelectric isolation device U3, an anode of a control side of the photoelectric isolation device U3 is connected to a circuit power supply, and a cathode is connected to a low power supply when the switch is started; and the input end and the output end of the controlled side of the photoelectric isolation device U3 are used for loading and outputting signals. Each branch of the switching circuit is matched with digital signals with equal duty ratio and frequency but opposite phases, and switches of the two branches are simultaneously conducted to output two paths of signals.
And the data processing circuit is used for processing the two paths of signals output by the switching circuit to form two paths of signal outputs with equal frequency and duty ratio and opposite phases. Two paths of signals output by the switching circuit are output by the data processing circuit respectively. Referring to fig. 3, the data processing circuit includes a programmable logic device U4, a resistor R9, a resistor R14, a capacitor C10 and a capacitor C5, wherein the resistor R9 and the resistor R14 are connected in series between a circuit power supply and a circuit ground, and the two are connected to be connected with the programmable logic device U4, so as to provide a bias for the programmable logic device U4 to ensure that the programmable logic device U4 can normally operate; the capacitor C10 and the capacitor C5 are used for filtering, so that the unstable condition of the programmable logic device U4 caused by power supply interference is effectively avoided. The Programmable Logic Device (PLD) is used for the existing computer code which is successfully debugged, and when the code is executed, the phase change and differentiation processing of an input signal is realized, and two paths of digital signals with equal duty ratio and frequency but opposite phases are output.
And the off-drive circuit receives the two paths of signals output by the data processing circuit and outputs the signals when the data processing circuit outputs the signals. Referring to fig. 4, the isolation driving circuit includes an isolation driver U1, an isolation driver U2, a power tube Q1 and a power tube Q2, power terminals of control sides of the isolation driver U1 and the isolation driver U2 are connected with a resistor R1 and a resistor R5, and a circuit power is loaded on the power terminals of the control sides of the isolation driver U1 and the isolation driver U2 through the resistor R1 and the resistor R5, respectively; the controlled side power ends of the isolation driver U1 and the isolation driver U2 are connected with a circuit power supply and are grounded through the capacitor C1 and the capacitor C3 respectively, the filter of the circuit power supply is realized through the configuration of the capacitor C1 and the capacitor C3, the interference of interference signals in the circuit power supply to the circuit is reduced, and the stability of the circuit is ensured. The output ends of the isolation driver U1 and the isolation driver U2 are respectively connected with the control ends of the power device Q1 and the power device Q2 through a resistor R2 and a resistor R6, the low power supply ends of the power device Q1 and the power device Q2 are connected with the circuit ground, and the output ends are connected with the conversion circuit.
In order to improve the on-off speed of the power device, a resistor R3 and a resistor R7 are respectively connected in series between the control end and the low power end of the power device Q1 and the power device Q2 of the driving circuit.
And the conversion circuit is used for converting the two paths of signals output by the off-drive circuit into single-ended signals. With reference to fig. 4, the converting circuit is configured as a transformer T1, a primary side of the transformer T1 includes a connection end 2, a connection end 3, a connection end 4 and a connection end 5, the connection end 2 and the connection end 5 serve as input ends, and are connected to an output of the isolation driving circuit; the connecting end 3 is connected with the circuit power supply after being connected with the connecting end 4, and the secondary side is used as output.
And the output circuit is used for filtering the single-ended signal output by the conversion circuit and generating a resonance signal to be output, the output circuit is electrically connected with the handle to load the output resonance signal on the transducer, and the transducer converts electric energy into ultrasonic waves to act on the welding position of the biological material through a welding head connected with the transducer to realize the ultrasonic welding of the biological material.
Referring to fig. 4, the output circuit is configured as an LC circuit. Specifically, one end of the inductor L1 is connected with the secondary side 8 end of the transformer T1, the secondary side 11 end of the transformer T1 and the other end of the inductor L1 are used as output ends and are connected with the connecting end P1 and the connecting end P2, the connecting end P1 and the connecting end P2 are used for load connection, and quick connection with a load can be realized by adopting contact pins and matching with a socket; the capacitor C2 is connected in series between the other end of the inductor L1 and the secondary side 11 of the transformer T1.
The LC circuit performs resonance matching while performing rectification filtering on a signal output by the transformer T1 to form a resonance signal. The output end of the output circuit is respectively provided with connecting ends P1 and P2, and is used for connecting with the handle through the connecting ends P1 and P2, so that the resonance signal is loaded on the transducer embedded in the handle; when the resonance frequency of the LC circuit resonance signal is consistent with the natural frequency of the transducer, resonance is formed, and the ultrasonic wave generated by the transducer can plasticize the biological material, so that the plasticization welding of the biological material is realized.
The power supply connecting end is connected with the electric component in the circuit, and supplies power to the electric component in the circuit when the power line is inserted and connected with the power supply. The welding machine is also provided with a power circuit connected with the power connecting end, the power circuit comprises a protection device R10, the power connecting end P8 comprises a VCC end and a GND end, one end of the protection device R10 is connected with the VCC end of the power connecting end P8, and the other end of the protection device R10 is used as an output end; the power supply is connected through a VCC end and then output through a protection device R10 to form a circuit power supply. The output end of the protection device R10 can be directly connected with a circuit electricity-requiring device through a lead to provide working power supply, and can also be connected with a power supply end. As shown in fig. 5, a power supply terminal P7, a power supply P9 and a power supply P10, which all include a VCC terminal and a GND terminal, are configured, where the VCC terminal is connected to the output terminal of the protection device R10, the GND terminal is connected to the circuit ground, and the power supply terminal and the power demand device are connected through a plug or a wire, so as to provide a working power supply for the power demand device.
In order to ensure the stability of the circuit, a capacitor C8 and a capacitor C9 are connected between the output end of the protection device R10 and the circuit ground, and the capacitor C8 and the capacitor C9 are connected in parallel to realize the filtering of the power supply and reduce the interference.
In order to achieve the power indication function, the power circuit is also provided with a light emitting diode D2. The anode of the LED D2 is connected with the VCC end of the power connection end P8 through a resistor R15, and the cathode is grounded. The resistor R10 is used for current limiting and voltage dividing, so that the light emitting diode D2 is prevented from being burnt out, and the light emitting diode D2 can work normally.
Herein, the protection device R4/R10 is configured as a PCT device, such as a PCT resistor, or other semiconductor material or component with a large positive temperature coefficient.
When this welding machine used: adjusting the frequency and duty ratio of a digital signal generated by a digital signal generator according to the inherent frequency of the transducer, and generating a digital signal to load on a switch circuit; applying an acting force on the starting switch to conduct the starting switch, enabling the digital signal to be connected into the circuit and output two paths of signals when the switching circuit works, enabling the data processing circuit to receive the two paths of signals output by the switching circuit to conduct differentiation and phase processing, outputting two paths of signals with equal frequency and duty ratio, outputting the two paths of signals with opposite phases to the isolation driving circuit, enabling the isolation driving circuit to output and load the signals on the conversion circuit at the moment, enabling the conversion circuit to output single-ended signals to load the signals on the output circuit, enabling the single-ended signals input by the output circuit to be filtered and generate resonant signals to output and load the signals on the transducer, and enabling the transducer to convert electric energy into ultrasonic waves to act on a welding position of the biological material through a welding head connected with the transducer to achieve ultrasonic welding of the biological material.
Two paths of digital signals with opposite phases loaded on the driving isolation circuit have phase difference set according to the condition of the transducer, so that the output circuit can generate fixed frequency with the transducer, and the transducer can achieve resonance to generate larger ultrasonic waves to realize effective welding. Such as 180 °,120 °, 150 °, or others; the two paths of digital signals are configured to have equal frequency and duty ratio, and when the phase difference is 180 degrees, the driving isolation circuit is symmetrically conducted and driven in one period, so that the conversion circuit continuously forms a single-ended signal to ensure that the output circuit is continuously loaded with the signal to generate a resonance signal, the continuity and effectiveness of welding are ensured, and the welding quality is improved.
In the text, the welding head can be a transducer, and the welding head does not need to be configured independently, so that the structure of the welding machine is simplified.
The frequency and the duty ratio of the digital signal generated by the digital generator of the welding machine can be preset according to the natural frequency of the energy circulator, and the energy circulator is directly started to generate the digital signal. Two paths of output signals of an isolation driving circuit in a signal acquisition equipment welding machine can also be configured, and the frequency and the duty ratio of a digital signal generated by a digital signal generator are adjusted according to the two paths of the output signals; the digital signal generated by the digital signal generator is loaded on the switching circuit and is connected into the circuit under the action of the switching circuit so as to improve the resonance capacity of the welding machine. The signal acquisition equipment is configured as an oscilloscope, an operator debugs the digital signal generator according to two signals displayed by the oscilloscope, and specifically, when the two signals displayed by the oscilloscope are as shown in fig. 6, the adjustment is not performed; when two paths of signals displayed by the oscilloscope are shown in fig. 7, the digital signal generator is adjusted, and the frequency and the duty ratio of the output signals are changed, so that the two paths of output signals of the isolation driving circuit are shown in fig. 6. The configuration of the signal acquisition equipment realizes self-adaptation, so that the circuit can more effectively form a resonance signal.
In addition, in order to facilitate the display of parameters such as digital signal frequency, duty ratio and phase, the welding machine body 1 is configured with a display module 13 connected with the digital signal generator, and the display module 13 collects and processes the digital signal generated by the digital signal generator and then displays the parameters such as frequency, duty ratio and phase. Still further, the display module 13 is configured with an adjustment key, and the adjustment key is used to adjust parameters such as frequency and duty ratio of the digital signal generated by the digital signal generator. The display module 13 may be integrated with the digital signal generator or may be a separate module electrically connected to the digital signal generator.
For the convenience of later-period circuit maintenance, the circuit arranged in the welding machine body 1 is configured into an integrated module, if the power circuit is a module, the digital signal generator is a module, the switching circuit, the data processing circuit, the isolation driving circuit, the conversion circuit and the output circuit form a module, and the modules are connected in a mode of matching plug wires through the plug row. When a certain module can not work, the corresponding module is replaced, other modules are not affected, later-stage circuit maintenance is facilitated, and maintenance cost is reduced.
The present disclosure has been described in terms of the above-described embodiments, which are merely exemplary of the implementations of the present disclosure. It must be noted that the disclosed embodiments do not limit the scope of the disclosure. Rather, variations and modifications may be made without departing from the spirit and scope of the disclosure, which should be determined from the substance of the claims that follow.
Claims (10)
1. The ultrasonic welding machine for the biological materials is characterized by comprising a welding machine body, a handle and a power line, wherein the welding machine body comprises a shell and a circuit which is arranged in the shell and used for generating a resonance signal, and a handle connecting end used for connecting the handle and a power connecting end used for connecting the power line are arranged on the shell; the handle is embedded with and is used for converting electric energy into ultrasonic transducer and starting switch, the circuit includes: a digital signal generator for generating a digital signal; the switch circuit is matched with the starting switch, and when the starting switch is pressed down, a digital signal generated by the digital signal generator is accessed into the circuit and outputs two paths of signals; the data processing circuit is used for processing the two paths of signals output by the switching circuit to form two paths of signal outputs with equal frequency and duty ratio and opposite phases; the isolation driving circuit receives the two paths of signals output by the data processing circuit and outputs the signals when the data processing circuit outputs the signals; the conversion circuit is used for converting the two paths of signals output by the isolation driving circuit into single-ended signals; the output circuit is electrically connected with the handle to load the output resonance signal on the transducer, and the transducer converts electric energy into ultrasonic waves which act on a welding position of the biological material through a welding head connected with the transducer to realize ultrasonic welding of the biological material; the power supply connecting end is connected with the electric component in the circuit, and supplies power to the electric component in the circuit when the power line is inserted and connected with the power supply.
2. The ultrasonic biomaterial welder according to claim 1, further comprising a protective device R4 connected in series between a circuit power supply and a power supply terminal of the conversion circuit.
3. The ultrasonic biomaterial welding machine as claimed in claim 1, further comprising a power circuit connected to the power connection terminal, wherein the power circuit comprises a protection device R10, and power is supplied to the electrical components through the protection device R10 after the power is connected through the power connection terminal.
4. The ultrasonic biomaterial welder according to claim 3, wherein the power circuit further comprises a light emitting diode D2 connected in series between the power terminal of the power connection and circuit ground.
5. The ultrasonic biomaterial welding machine as claimed in claim 1, wherein the switching circuit comprises a photoelectric isolation device U3, the anode of the control side of the photoelectric isolation device U3 is connected with the circuit power supply, and the cathode is connected with the low power supply through a switch; and the input end and the output end of the controlled side of the photoelectric isolation device U3 are used for loading and outputting signals.
6. The ultrasonic biomaterial welder according to claim 5, further comprising a light emitting diode D1 connected in series between the switch and the optoelectronic isolation device U3.
7. The ultrasonic biomaterial welding machine as claimed in claim 1, wherein the isolation driving circuit comprises an isolation driver U1, an isolation driver U2, a power tube Q1 and a power tube Q2, anodes of the control sides of the isolation driver U1 and the isolation driver U2 are connected with a circuit power supply, and cathodes are respectively used for loading two paths of signals output by the data processing circuit; the control ends of the power tube Q1 and the power tube Q2 are respectively connected with the output ends of the isolation driver U1 and the isolation driver U2, and the output ends of the power tube Q1 and the power tube Q2 are respectively connected with the input end of the conversion circuit.
8. The ultrasonic biomaterial welding machine as claimed in claim 1, characterized in that the conversion circuit comprises a transformer T1, the primary side of the transformer T1 comprises a connection end 2, a connection end 3, a connection end 4 and a connection end 5, the connection end 2 and the connection end 5 are used as input ends, and the connection end 3 is connected with a circuit power supply after being connected with the connection end 4; the secondary side is used as output.
9. The ultrasonic biomaterial welder according to claim 1, wherein the output circuit comprises an inductor L1 and a capacitor C2.
10. An ultrasonic biomaterial welding method, which is based on the ultrasonic biomaterial welding machine as claimed in any one of claims 1 to 9, and is characterized in that the frequency and the duty ratio of a digital signal generated by the digital signal generator are adjusted according to the natural frequency of the transducer, and a digital signal is generated and loaded on the switching circuit; applying an acting force on the starting switch to conduct the starting switch, enabling a digital signal to be connected into a circuit and output two paths of signals when the switching circuit works, enabling the data processing circuit to receive the two paths of signals output by the switching circuit to carry out differentiation and phase processing, outputting two paths of signals with equal frequency and duty ratio, outputting the two paths of signals with opposite phases to the isolation driving circuit, enabling the isolation driving circuit to have output and load on the conversion circuit at the moment, enabling the conversion circuit to output a single-ended signal to load on the output circuit, enabling the single-ended signal input by the output circuit to carry out filtering and generate a resonance signal to output and load on the transducer, and enabling the transducer to convert electric energy into ultrasonic waves to act on a biomaterial welding position through a welding head connected with the transducer to achieve ultrasonic welding of the biomaterial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN2258446Y (en) * | 1996-01-31 | 1997-07-30 | 汕头经济特区龙湖区金士达超声机器制造公司 | Ultrasonic welding machine |
| EP2711092A1 (en) * | 2012-09-25 | 2014-03-26 | Adolf Würth GmbH & Co. KG | Transformer-free ultrasound generator for a handheld device |
| CN203664916U (en) * | 2014-01-06 | 2014-06-25 | 温州泳恒科技有限公司 | Waterproof board ultrasonic welding machine |
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| CN206060708U (en) * | 2016-08-31 | 2017-03-29 | 宁波菲仕电机技术有限公司 | A kind of IGBT drive signals transmission circuit |
| CN107027224A (en) * | 2017-06-09 | 2017-08-08 | 厦门奇力微电子有限公司 | A kind of LED light adjusting circuits and LED drive circuit |
| JP2020163312A (en) * | 2019-03-29 | 2020-10-08 | 日本アビオニクス株式会社 | Ultrasonic transducer driving circuit and ultrasonic welding device |
| CN215750817U (en) * | 2020-08-29 | 2022-02-08 | 广东捷胜电气技术有限公司 | Ultrasonic welding generation system and welding equipment |
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| CN2258446Y (en) * | 1996-01-31 | 1997-07-30 | 汕头经济特区龙湖区金士达超声机器制造公司 | Ultrasonic welding machine |
| EP2711092A1 (en) * | 2012-09-25 | 2014-03-26 | Adolf Würth GmbH & Co. KG | Transformer-free ultrasound generator for a handheld device |
| CN203664916U (en) * | 2014-01-06 | 2014-06-25 | 温州泳恒科技有限公司 | Waterproof board ultrasonic welding machine |
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| CN206060708U (en) * | 2016-08-31 | 2017-03-29 | 宁波菲仕电机技术有限公司 | A kind of IGBT drive signals transmission circuit |
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| CN114653566A (en) | 2022-06-24 |
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