CN108381026B - High-frequency sealing practical circuit of electronic tube - Google Patents
High-frequency sealing practical circuit of electronic tube Download PDFInfo
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- CN108381026B CN108381026B CN201810438326.0A CN201810438326A CN108381026B CN 108381026 B CN108381026 B CN 108381026B CN 201810438326 A CN201810438326 A CN 201810438326A CN 108381026 B CN108381026 B CN 108381026B
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- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 60
- 230000010355 oscillation Effects 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 92
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 101100269322 Arabidopsis thaliana AFC2 gene Proteins 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 101100269321 Arabidopsis thaliana AFC1 gene Proteins 0.000 description 2
- 101100258032 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) STE24 gene Proteins 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/08—Electric supply or control circuits therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to a practical circuit for high-frequency sealing welding of an electronic tube, which comprises: the electronic meter comprises a direct current power supply, an electron tube circuit, an oscillating circuit, an electronic voltage regulator and a milliamp meter circuit; the direct current power supply converts the voltage of the external power supply to supply power for the work of the valve circuit, and the valve circuit and the oscillating circuit are matched to realize starting oscillation and output high-frequency voltage to realize high-frequency seal welding; the electronic voltage regulator rectifies the external power supply and provides the voltage for the valve circuit to work, so that the power of the output high-frequency voltage can meet the sealing welding requirement. The invention makes molecules in the film vibrate and move at similar frequency, so that the molecules in the welded film are mutually exchanged, the film can implement welding in different speed transmission, and the strength of the welding seam is ensured to be larger than that of the film.
Description
Technical Field
The invention discloses a practical circuit for high-frequency sealing and welding of an electronic tube, and relates to the technical field of high-frequency sealing and welding.
Background
At present, the traditional conduction heating welding method has the defects of low production efficiency, high labor intensity, high requirement on welding workers, difficult quality assurance, accurate welding position requirement by adopting the traditional method, uncontrollable welding seam solidification speed, easy generation of air holes and the like, and the traditional welding circuit often causes the change of the performance of a welded joint structure due to the fact that the welding process cannot be controlled and the output power and voltage are accurately controlled, such as improper control can seriously influence the quality of a structural member, residual stress and deformation of a welded product influence the quality of the product, and the bearing capacity of the welded product is reduced.
The foregoing background description is only for the purpose of facilitating a thorough understanding of the present invention and should not be construed as an admission or any form of suggestion that this information forms the prior art already known to those skilled in the art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention relates to a practical circuit for high-frequency sealing welding of an electron tube, which enables molecules in a film to vibrate and move at similar frequency, enables the molecules in the welded film to be mutually exchanged, ensures that the film can be welded in different speed transmission, ensures that the strength of a welding line is larger than that of the film, and has good welding effect.
In order to achieve the above object, a practical circuit for high-frequency sealing and welding of an electronic tube is provided, which comprises: the electronic meter comprises a direct current power supply, an electron tube circuit, an oscillating circuit, an electronic voltage regulator and a milliamp meter circuit;
the direct current power supply converts the voltage of the external power supply to supply power for the work of the valve circuit, and the valve circuit and the oscillating circuit are matched to realize starting oscillation and output high-frequency voltage to realize high-frequency seal welding;
the electronic voltage regulator rectifies the external power supply and provides the voltage for the valve circuit to work, so that the power of the output high-frequency voltage can meet the sealing welding requirement.
The milliamp meter circuit measures and displays the power of the output high-frequency voltage for on-site debugging.
Preferably, the valve circuit comprises a valve U1 which is a 35TG type valve or a 811 type valve, and the power supply voltage of filaments in the valve U1 is direct current 5V.
Preferably, the electronic voltage regulator employs a stepper motor controlled mechanical coil sliding regulator,
preferably, the electronic voltage regulator is a PLC controlled electronic voltage regulator.
Preferably, the oscillating circuit is an inductance three-point type LC positive rotation oscillating circuit, comprising: the vibrating coil and the feedback coil are coaxially nested into a whole, and a grounding point is welded on the middle position of the coil and grounded.
Preferably, the oscillating circuit further comprises a variable capacitor with high voltage resistance, and the variable capacitor is used for selecting an oscillating frequency corresponding to the maximum output power.
Preferably, the high-frequency sealing is implemented by adopting a coupling oscillation loop of the oscillation circuit, the coupling oscillation loop can adjust the oscillation frequency of the coupling circuit, so that the frequency of a coil, an induction oscillation coil and the oscillation circuit in the coupling oscillation loop is the same, and the coil and the induction oscillation coil in the coupling oscillation loop are connected to a welding head to realize the sealing power.
Preferably, the direct current power supply converts external 220V alternating current voltage into 5V direct current voltage, and the power supply tube circuit works; the input end of the direct current power supply is connected with external 220V alternating current, and the output end of the direct current power supply is connected with the voltage input end of the valve U1.
Preferably, the valve circuit includes: valve U1, resistor R4, capacitor C4; the cathode of the electron tube U1 is connected with an inductor L3 in the vibration starting circuit; the anode of the electron tube U1 is connected with one end of a parallel network formed by a resistor R4 and a capacitor C4, and the other end of the parallel network formed by the resistor R4 and the capacitor C4 is grounded through a capacitor C9.
Preferably, the oscillating circuit comprises: inductance L3, capacitance C2, variable capacitance, oscillation coil L1, feedback coil L4, coaxial cable;
one end of the inductor L3 and one end of the capacitor C2 are connected with the cathode of the valve U1, and the other end of the inductor L3 is grounded;
the other end of the capacitor C2 is connected with one end of the oscillating coil L1 and one end of the first variable capacitor, the other end of the first variable capacitor is grounded and is simultaneously connected with the middle part of the oscillating coil L1, and the other end of the oscillating coil L1 is grounded through the capacitor C9;
one end of the feedback coil L4 is connected with an external welding head through a coaxial cable, and the other end of the feedback coil is grounded through a second variable capacitor VC 2;
preferably, when the electronic voltage regulator is a PLC controlled electronic voltage regulator, a voltage input end AC/L (128) and an AC/N (129) of the electronic voltage regulator are connected with 220V voltage signals, a voltage output end +bv is connected with one end of a capacitor C7, a voltage output end-BV is connected with the other end of the capacitor C7, and a grounding end E of the electronic voltage regulator is grounded; the starting signal end ON+ (203) of the electronic voltage regulator is connected with the starting signal end ON- (204) through a relay KA2 switch; the positive stage (207) of the voltage regulating end of the electronic voltage regulator is connected with the positive stage of an external input voltage regulating signal BFV through a relay KA16, the negative stage GMD (208) of the voltage regulating end of the electronic voltage regulator is connected with the negative stage of the external input voltage regulating signal BFV, the automatic control proportion regulating ends RV1+ (105) and RV1- (107) of the electronic voltage regulator are respectively connected with two ends of a sliding rheostat R7, and the RV1 end (106) is connected with the sliding end of the sliding rheostat; the manual control high-voltage end KV2+ (102) and KV2- (104) are respectively connected to two ends of the sliding rheostat R8, and the sliding end of the sliding rheostat R8 is connected with the KV2 end (103) of the electronic voltage regulator.
Preferably, the milliamp meter circuit comprises: capacitor C8, capacitor C7, capacitor C5, inductance coil AFC, resistor C5; one end of the capacitor C7 is connected with one end of a parallel network formed by the resistor R5 and the capacitor C8 and is grounded through the capacitor C9, and the other end of the parallel network formed by the resistor R5 and the capacitor C8 is grounded;
the other end of the capacitor C7 is connected with one end of a parallel network formed by the ammeter and the capacitor C5 through an inductance coil AFC, and the other end of the parallel network formed by the ammeter and the capacitor C5 is grounded.
Preferably, FAN2 is adopted to perform blowing heat exchange on the oscillating circuit.
Preferably, a matching box is arranged between the coaxial cable and the welding head, a cable L2 is arranged in the matching box, one end of the cable L2 is connected with the coaxial cable, the other end is connected with the ultrasonic welding head, and the middle part of the inductor is grounded.
Preferably, the electronic voltage regulator is of the type: HS255-220S1700.
Preferably, when the electronic voltage regulator adopts a mechanical coil sliding regulator controlled by a stepping motor, the voltage input end of the electronic voltage regulator TF2 is connected with 220V voltage, the positive stage (201) of the voltage output end and the negative electrode (102) of the voltage output end are respectively connected with two ends of a primary coil of the transformer, and two ends of a secondary coil are connected with the positive stage and the negative electrode of the voltage input of the valve U1.
Preferably, a positive stage (201) of a voltage output end and a negative stage (102) of the voltage output end of the electronic voltage regulator are connected with a primary coil of a transformer TF5, a secondary coil of the transformer TF5 is connected with a rectifying circuit, and the rectifying circuit is connected with a milliamp meter circuit for power display.
Preferably, the oscillating coil composed of the first variable capacitor VC1 and the inductors L1 and L4 is disposed at a position closest to the fan, the high-voltage capacitor C2 and the high-voltage capacitor C9 are disposed close to the valve U1, the valve U1 is disposed beside the oscillating coil, and the first variable capacitor VC1 is disposed at a position close to the valve U1 and the capacitor VC 2.
Capacitor C7 is arranged between inductor AFC1 and high voltage capacitor C5, capacitor C8 is arranged in close proximity to inductor AFC2, dc power is in close proximity to capacitor C7, plugs J1 and J2 are in close proximity to 5V power, and the other inductor AFC2 is in close proximity to plug and capacitor C8.
The invention adopts the technical scheme that the invention has the following beneficial effects:
(1) Unlike available technology, the present invention makes the molecules in the film vibrate in similar frequency to exchange the molecules in the welded film, and the film can weld in different speed, ensure the strength of the welded seam to be higher than that of the film, and raise welding quality.
(2) The invention can control the high-frequency sealing welding of the electronic tube to be used in the meat high-temperature food package, which welds the coiled sheet film into a tube shape continuously in the transmission process so as to fill the meat food, and packages the meat food into the tube shape for sale
(3) The invention uses the voltage regulator to rectify the working voltage of the power supply tube, and the voltage regulator can ensure that the output power of the sealing welding circuit can meet the sealing welding requirements of different film transmission speeds.
Drawings
FIG. 1 is a schematic diagram of a preferred valve high frequency seal welding practice of the present invention;
FIG. 2 is a schematic diagram of another preferred valve high frequency seal welding practice of the present invention;
FIG. 3 is a circuit diagram of the present invention;
FIG. 4 is a schematic illustration of the selection of components of a preferred valve high frequency seal welding practical circuit diagram of the present invention;
FIG. 5 is a schematic illustration of the selection of components of another preferred valve high frequency seal welding practical circuit diagram of the present invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
The invention relates to a practical circuit for high-frequency sealing welding of an electronic tube, which comprises: the electronic meter comprises a direct current power supply, an electron tube circuit, an oscillating circuit, an electronic voltage regulator and a milliamp meter circuit; the direct current power supply converts the voltage of the external power supply to supply power for the work of the valve circuit, and the valve circuit and the oscillating circuit are matched to realize starting oscillation and output high-frequency voltage to realize high-frequency seal welding; the electronic voltage regulator rectifies the external power supply and provides the voltage for the valve circuit to work, so that the power of the output high-frequency voltage can meet the sealing welding requirement. The invention makes molecules in the film vibrate and move at similar frequency, so that the molecules in the welded film are mutually exchanged, the film can implement welding in different speed transmission, and the strength of the welding seam is ensured to be larger than that of the film.
As shown in fig. 1, a practical circuit for high-frequency sealing and welding of an electronic tube comprises: the electronic meter comprises a direct current power supply, an electron tube circuit, an oscillating circuit, an electronic voltage regulator and a milliamp meter circuit;
the direct current power supply converts the voltage of the external power supply to supply power for the work of the valve circuit, and the valve circuit and the oscillating circuit are matched to realize starting oscillation and output high-frequency voltage to realize high-frequency seal welding;
the electronic voltage regulator rectifies the external power supply and provides the voltage for the valve circuit to work, so that the power of the output high-frequency voltage can meet the sealing welding requirement.
The milliamp meter circuit measures and displays the power of the output high-frequency voltage for on-site debugging.
Preferably, the electron tube circuit comprises an electron tube U1 of 35TG type or 811 type, and the power supply voltage of filaments in the electron tube U1 is direct current 5V.
Preferably the electronic voltage regulator employs a stepper motor controlled mechanical coil sliding regulator,
preferably, the electronic voltage regulator is a PLC controlled electronic voltage regulator.
Preferably, the oscillating circuit is an inductance three-point LC positive rotation oscillating circuit, comprising: the vibrating coil and the feedback coil are coaxially nested into a whole, and a grounding point is welded on the middle position of the coil and grounded.
Preferably, the oscillating circuit further comprises a variable capacitor with high voltage resistance, and the variable capacitor is used for selecting an oscillating frequency corresponding to the maximum output power.
Preferably, the high-frequency sealing is implemented by adopting a coupling oscillation loop of the oscillation circuit, the coupling oscillation loop can adjust the oscillation frequency of the coupling circuit, so that the frequency of a coil, an induction oscillation coil and the oscillation circuit in the coupling oscillation loop is the same, and the coil and the induction oscillation coil in the coupling oscillation loop are connected to a welding head to realize the sealing power.
The direct current power supply converts external 220V alternating current voltage into 5V direct current voltage, and the power supply tube circuit works; the input end of the direct current power supply is connected with external 220V alternating current, and the output end of the direct current power supply is connected with the voltage input end of the valve U1.
A valve circuit comprising: valve U1, resistor R4, capacitor C4; the cathode of the electron tube U1 is connected with an inductor L3 in the vibration starting circuit; the anode of the electron tube U1 is connected with one end of a parallel network formed by a resistor R4 and a capacitor C4, and the other end of the parallel network formed by the resistor R4 and the capacitor C4 is grounded through a capacitor C9.
An oscillating circuit, comprising: inductance L3, capacitance C2, variable capacitance, oscillation coil L1, feedback coil L4, coaxial cable;
one end of the inductor L3 and one end of the capacitor C2 are connected with the cathode of the valve U1, and the other end of the inductor L3 is grounded;
the other end of the capacitor C2 is connected with one end of the oscillating coil L1 and one end of the first variable capacitor, the other end of the first variable capacitor is grounded and is simultaneously connected with the middle part of the oscillating coil L1, and the other end of the oscillating coil L1 is grounded through the capacitor C9;
one end of the feedback coil L4 is connected with an external welding head through a coaxial cable, and the other end of the feedback coil is grounded through a second variable capacitor VC 2;
as shown in fig. 1, when the electronic voltage regulator is a PLC controlled electronic voltage regulator, a voltage input end AC/L (128) and an AC/N (129) of the electronic voltage regulator are connected with 220V voltage signals, a voltage output end +bv is connected with one end of a capacitor C7, a voltage output end-BV is connected with the other end of the capacitor C7, and a ground end E of the electronic voltage regulator is grounded; the starting signal end ON+ (203) of the electronic voltage regulator is connected with the starting signal end ON- (204) through a relay KA2 switch; the positive stage (207) of the voltage regulating end of the electronic voltage regulator is connected with the positive stage of an external input voltage regulating signal BFV through a relay KA16, the negative stage GMD (208) of the voltage regulating end of the electronic voltage regulator is connected with the negative stage of the external input voltage regulating signal BFV, the automatic control proportion regulating ends RV1+ (105) and RV1- (107) of the electronic voltage regulator are respectively connected with two ends of a sliding rheostat R7, and the RV1 end (106) is connected with the sliding end of the sliding rheostat; the manual control high-voltage end KV2+ (102) and KV2- (104) are respectively connected to two ends of the sliding rheostat R8, and the sliding end of the sliding rheostat R8 is connected with the KV2 end (103) of the electronic voltage regulator.
A milliamp meter circuit comprising: capacitor C8, capacitor C7, capacitor C5, inductance coil AFC, resistor C5; one end of the capacitor C7 is connected with one end of a parallel network formed by the resistor R5 and the capacitor C8 and is grounded through the capacitor C9, and the other end of the parallel network formed by the resistor R5 and the capacitor C8 is grounded;
the other end of the capacitor C7 is connected with one end of a parallel network formed by the ammeter and the capacitor C5 through an inductance coil AFC, and the other end of the parallel network formed by the ammeter and the capacitor C5 is grounded.
Preferably, FAN FAN2 is adopted to perform blowing heat exchange on the oscillating circuit.
A matching box is arranged between the coaxial cable and the welding head, a cable L2 is arranged in the matching box, one end of the cable L2 is connected with the coaxial cable, the other end is connected with the ultrasonic welding head, and the middle part of the inductor is grounded.
The model of the electronic voltage regulator is preferably: HS255-220S1700.
As shown in fig. 2, when the electronic voltage regulator adopts a mechanical coil sliding regulator controlled by a stepping motor, the voltage input end of the electronic voltage regulator TF2 is connected to 220V voltage, the positive stage (201) of the voltage output end and the negative electrode (102) of the voltage output end are respectively connected to two ends of the primary coil of the transformer, and two ends of the secondary coil are connected to the positive stage and the negative electrode of the voltage input valve U1.
Preferably, a positive stage (201) of a voltage output end and a negative stage (102) of the voltage output end of the electronic voltage regulator are connected with a primary coil of a transformer TF5, a secondary coil of the transformer TF5 is connected with a rectifying circuit, and the rectifying circuit is connected with a milliamp meter circuit for power display.
The rectifier circuit, preferably a bridge rectifier circuit, and the transformer enable conversion of the ac input voltage to the dc output voltage and electrical isolation between the ac grid and the rectifier circuit. The rectifying circuit can convert the voltage output by the electronic voltage regulator into direct current to carry out rectification.
As shown in fig. 3, the oscillating coil formed by the first variable capacitor VC1 and the inductors L1 and L4 is disposed at a position closest to the fan, the high-voltage capacitor C2 and the high-voltage capacitor C9 inductor L3 are disposed close to the valve U1, the valve U1 is disposed beside the oscillating coil, and the first variable capacitor VC1 is disposed at a position close to the valve U1 and the capacitor VC 2.
The capacitor C7 is arranged between the inductance AFC1 and the high-voltage capacitor C5, the capacitor C8 is arranged close to the inductance AFC2, the direct current power supply is close to the capacitor C7, the plugs J1 and J2 are close to the 5V power supply, and the other inductance AFC2 is close to the plugs and the capacitor C8.
One path of the two paths of output of the matching box is connected with the cathode connected with the filling pipe, and the other path of output of the matching box is connected with the anode, so that high-frequency seal welding is realized.
After the filament of the electron tube is heated, negative electrons are discharged from the cathode near the filament, positive high voltage change is carried out on the grid electrode to control electron flow, amplified screen electrode current is taken as output, the output circuit is matched with a tuner VC2 through a matching box, and the resonant frequency of the output circuit including L4 is aligned to the oscillation frequency in a state that the film penetrates through the electrodes.
FIG. 4 shows a preferred scheme of selecting components and parameter values of the components in a preferred high-frequency sealing practical circuit diagram of the valve of the invention; as shown in FIG. 5, in another preferred embodiment of the present invention, the electronic tube high-frequency sealing practical circuit has better performance and higher stability by selecting the components and optimizing the parameters of the components.
The description of the exemplary embodiments presented above is merely illustrative of the technical solution of the present invention and is not intended to be exhaustive or to limit the invention to the precise form described. Obviously, many modifications and variations are possible in light of the above teaching to those of ordinary skill in the art. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable others skilled in the art to understand, make and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.
Claims (12)
1. A practical circuit for high frequency sealing of an electron tube, comprising: the electronic meter comprises a direct current power supply, an electron tube circuit, an oscillating circuit, an electronic voltage regulator and a milliamp meter circuit;
the direct current power supply converts the voltage of the external power supply to supply power for the work of the valve circuit, and the valve circuit and the oscillating circuit are matched to realize starting oscillation and output high-frequency voltage to realize high-frequency seal welding;
the electronic voltage regulator rectifies an external power supply and provides the voltage for the valve circuit to work, so that the power of the output high-frequency voltage can meet the sealing welding requirement;
the milliammeter circuit measures and displays the power of the output high-frequency voltage for on-site debugging;
an oscillating circuit, comprising: the device comprises an inductor L3, a capacitor C2, a variable capacitor VC2, an oscillating coil L1, a feedback coil L4 and a coaxial cable;
one end of the inductor L3 and one end of the capacitor C2 are connected with the cathode of the valve U1, and the other end of the inductor L3 is grounded;
the other end of the capacitor C2 is connected with one end of the oscillating coil L1 and one end of the first variable capacitor 30P, the other end of the first variable capacitor 30P is grounded and is simultaneously connected with the middle part of the oscillating coil L1, and the other end of the oscillating coil L1 is grounded through the capacitor C9;
one end of the feedback coil L4 is connected with an external welding head through a coaxial cable, and the other end of the feedback coil is grounded through a second variable capacitor VC 2;
a valve circuit comprising: valve U1, resistor R4, capacitor C4; the cathode of the electron tube U1 is connected with an inductor L3 in the oscillating circuit; the anode of the electron tube U1 is connected with one end of a parallel network formed by a resistor R4 and a capacitor C4, and the other end of the parallel network formed by the resistor R4 and the capacitor C4 is grounded through a capacitor C9.
2. The valve high frequency seal welding practical circuit according to claim 1, wherein: the electron tube circuit comprises an electron tube U1 which is a 35TG type or 811 type electron tube, and the power supply voltage of filaments in the electron tube U1 is direct current 5V.
3. The valve high frequency seal welding practical circuit according to claim 1, wherein: the electronic voltage regulator adopts a mechanical coil sliding regulator controlled by a stepping motor.
4. The valve high frequency seal welding practical circuit according to claim 1, wherein: the electronic voltage regulator is a PLC controlled electronic voltage regulator.
5. The valve high frequency seal welding practical circuit according to claim 1, wherein: the direct current power supply converts external 220V alternating current voltage into 5V direct current voltage, and the power supply tube circuit works; the input end of the direct current power supply is connected with external 220V alternating current, and the output end of the direct current power supply is connected with the voltage input end of the valve U1.
6. The valve high frequency seal welding practical circuit according to claim 1, wherein: when the electronic voltage regulator is controlled by the PLC, a voltage input end AC/L (128) and an AC/N (129) of the electronic voltage regulator are connected with 220V voltage signals, a voltage output end +HV is connected with one end of a capacitor C7, a voltage output end-HV is connected with the other end of the capacitor C7, and a grounding end E of the electronic voltage regulator is grounded; the starting signal end ON+ (203) of the electronic voltage regulator is connected with the starting signal end ON- (204) through a relay KA2 switch; the positive electrode (207) of the voltage regulating end of the electronic voltage regulator is connected with the positive electrode of an external input voltage regulating signal BFV through a relay KA16, the negative electrode GMD (208) of the voltage regulating end of the electronic voltage regulator is connected with the negative electrode of the external input voltage regulating signal BFV, the automatic control proportion regulating ends RV1+ (105) and RV1- (107) of the electronic voltage regulator are respectively connected with the two ends of a sliding rheostat R7, and the RV1 end (106) is connected with the sliding end of the sliding rheostat; the manual control high-voltage end KV2+ (102) and KV2- (104) are respectively connected to two ends of the sliding rheostat R8, and the sliding end of the sliding rheostat R8 is connected with the KV2 end (103) of the electronic voltage regulator.
7. The valve high frequency seal welding practical circuit according to claim 1, wherein: a milliamp meter circuit comprising: capacitor C8, capacitor C7, capacitor C5, inductor AFC, resistor R5; one end of the capacitor C7 is connected with one end of a parallel network formed by the resistor R5 and the capacitor C8 and is grounded through the capacitor C9, and the other end of the parallel network formed by the resistor R5 and the capacitor C8 is grounded;
the other end of the capacitor C7 is connected with one end of a parallel network formed by the ammeter and the capacitor C5 through an inductance coil AFC, and the other end of the parallel network formed by the ammeter and the capacitor C5 is grounded.
8. The valve high frequency seal welding practical circuit according to claim 1, wherein: FAN2 is adopted to perform blowing heat exchange on the oscillating circuit.
9. The valve high frequency seal welding practical circuit according to claim 1, wherein: a matching box is arranged between the coaxial cable and the welding head, a cable L2 is arranged in the matching box, one end of the cable L2 is connected with the coaxial cable, the other end is connected with the ultrasonic welding head, and the middle part of the inductor is grounded.
10. The valve high frequency seal welding practical circuit according to claim 1, wherein: the model of the electronic voltage regulator is as follows: HS255-220S1700.
11. The valve high frequency seal welding practical circuit according to claim 1, wherein: when the electronic voltage regulator adopts a mechanical coil sliding regulator controlled by a stepping motor, the voltage input end of the electronic voltage regulator TF2 is connected with 220V voltage, the positive electrode (201) of the voltage output end and the negative electrode (102) of the voltage output end are respectively connected with two ends of a primary coil of the transformer, and two ends of a secondary coil are connected with the positive electrode and the negative electrode of the voltage input of the valve U1.
12. The valve high frequency seal welding practical circuit according to claim 1, wherein: the positive electrode (201) of the voltage output end and the negative electrode (102) of the voltage output end of the electronic voltage regulator are connected with the primary coil of the transformer TF5, the secondary coil of the transformer TF5 is connected with a rectifying circuit, and the rectifying circuit is connected with a milliamp meter circuit for power display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810438326.0A CN108381026B (en) | 2018-05-09 | 2018-05-09 | High-frequency sealing practical circuit of electronic tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810438326.0A CN108381026B (en) | 2018-05-09 | 2018-05-09 | High-frequency sealing practical circuit of electronic tube |
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| CN108381026A CN108381026A (en) | 2018-08-10 |
| CN108381026B true CN108381026B (en) | 2023-11-03 |
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| CN201813573U (en) * | 2010-09-03 | 2011-04-27 | 长春市巨信医疗器械有限公司 | High-frequency source inductance type heating device |
| CN106535385A (en) * | 2015-09-09 | 2017-03-22 | 肖建设 | Electronic device with integrated control device |
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2018
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| CN2037912U (en) * | 1988-08-24 | 1989-05-17 | 重庆江北区建华机电设备厂 | High-frequency medium heating machine |
| CN200967113Y (en) * | 2006-10-11 | 2007-10-31 | 上海东宏电器厂 | Energy-saving safe electric welding machine |
| CN200969686Y (en) * | 2006-10-27 | 2007-10-31 | 张建华 | High-frequency medium heater |
| CN1971459A (en) * | 2006-11-29 | 2007-05-30 | 河北科技大学 | Comprehensive automatic control system for welding process of high-frequency welded pipe |
| CN101754509A (en) * | 2008-12-17 | 2010-06-23 | 陈建 | Method and circuit for controlling operation of high-frequency welding machine by using program |
| CN201813573U (en) * | 2010-09-03 | 2011-04-27 | 长春市巨信医疗器械有限公司 | High-frequency source inductance type heating device |
| CN106535385A (en) * | 2015-09-09 | 2017-03-22 | 肖建设 | Electronic device with integrated control device |
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