CN116639341B - Heating control circuit of aluminum foil sealing machine - Google Patents
Heating control circuit of aluminum foil sealing machine Download PDFInfo
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- CN116639341B CN116639341B CN202310750814.6A CN202310750814A CN116639341B CN 116639341 B CN116639341 B CN 116639341B CN 202310750814 A CN202310750814 A CN 202310750814A CN 116639341 B CN116639341 B CN 116639341B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 18
- 239000011888 foil Substances 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 230000015556 catabolic process Effects 0.000 claims abstract description 11
- 230000010355 oscillation Effects 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims description 82
- 238000005070 sampling Methods 0.000 claims description 23
- 230000000295 complement effect Effects 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 claims description 14
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 102220179353 rs376307136 Human genes 0.000 description 1
- 102220170946 rs567155861 Human genes 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B2051/105—Heat seal temperature control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application discloses aluminum foil sealing machine heating control circuit, including power supply circuit, starting circuit, detection circuitry, protection circuit, oscillation circuit, protection circuit's first input is connected with detection circuitry, and protection circuit's second input is connected with power supply circuit, and protection circuit's third input is connected with starting circuit, and power supply circuit is parallelly connected with detection circuitry's input and protection circuit's second input, and oscillation circuit's input is connected with protection circuit's output. Compared with the prior art, the power supply circuit is connected with a 220v power supply, a starting instruction is received through the starting circuit, the voltage is detected by the detecting circuit, the high-voltage breakdown circuit is prevented by the protecting circuit, the output frequency is controlled by the oscillating circuit, the external heating coil and the IGBT tube are controlled, the conduction time of the IGBT tube is controlled, namely the energy storage size of the heating coil is controlled, and the purpose of heat control is achieved.
Description
Technical Field
The application relates to the field of control circuits, in particular to a heating control circuit of an aluminum foil sealing machine.
Background
Aluminum foil sealers are a common type of equipment used in the food packaging and pharmaceutical industries to seal the contents of plastic/paper bags from the outside elements such as air, moisture, etc., and to extend shelf life. In the sealing process, the aluminum foil needs to be subjected to heat treatment so as to be perfectly adhered and sealed with the bag or the bottle mouth. Conventionally, a temperature-controlled electromagnetic valve is used for controlling aluminum foil heating, but the method has the following defects:
inaccurate temperature control: when only the solenoid valve is used, a large error is generated between the temperature detected by the sensor and the actual temperature.
The heating time is too long: to ensure adequate heating of the aluminum foil, additional heating is often required during standard sealing times.
In view of these problems, the inventors have proposed an invention of a heating control circuit of an aluminum foil sealing machine, which can automatically control heating and sealing time of an aluminum foil, thereby saving time and cost in sealing work and improving sealing efficiency.
Disclosure of Invention
In view of this, the present application provides a heating control circuit of an aluminum foil sealing machine for controlling heating and sealing time of aluminum foil.
In order to achieve the above object, the following solutions have been proposed:
the utility model provides an aluminium foil capper heating control circuit, includes power supply circuit, starting circuit, detection circuitry, protection circuit, oscillating circuit, wherein:
the first input end of the protection circuit is connected with the detection circuit, the second input end of the protection circuit is connected with the power circuit, the third input end of the protection circuit is connected with the starting circuit, the power circuit is connected with the input end of the detection circuit and the second input end of the protection circuit in parallel, and the input end of the oscillation circuit is connected with the output end of the protection circuit.
Optionally, the start-up circuit comprises a low voltage start-up circuit, wherein:
the low-voltage starting circuit comprises a low-voltage power supply, a charging circuit, a photoelectric coupler, a light emitting diode, a unidirectional breakdown diode, a first dual-voltage comparator, a ground wire and a first triode, wherein the low-voltage power supply is connected with an input pin of the photoelectric coupler, an output pin of the photoelectric coupler is connected with a collector electrode of the first triode after being connected with the light emitting diode in parallel, a base electrode of the first triode is connected with an output end of the first dual-voltage comparator, and an emitter electrode of the first triode is grounded.
Optionally, the starting circuit further includes a delay starting circuit, wherein:
the delay starting circuit comprises a low-voltage power supply, a capacitor, a second dual-voltage comparator and a diode, wherein the base electrode of the first triode is connected with the first dual-voltage comparator in parallel with the delay starting circuit, the input end of the first dual-voltage comparator is connected with the unidirectional breakdown diode and the charging circuit in parallel, the low-voltage power supply and the capacitor are connected with the anode and the cathode of the second dual-voltage comparator in parallel, the output end of the second dual-voltage comparator is connected with the cathode of the diode, and the anode of the diode is connected with the base electrode of the first triode in the low-voltage starting circuit and the first dual-voltage comparator in parallel.
Optionally, the power supply circuit includes a first power supply circuit and a heat dissipation circuit, wherein:
the first power supply circuit comprises a first alternating current power supply, a first rectifier bridge, a voltage-stabilizing integrated block and a capacitor module, wherein the first alternating current power supply is coupled with the input end of the first rectifier bridge, the output end of the first rectifier bridge is connected with the input end of the voltage-stabilizing integrated block and the input end of the detection circuit in parallel, the output end of the voltage-stabilizing integrated block is connected with the positive electrode of the capacitor module, and the negative electrode of the capacitor module is grounded.
Optionally, the power supply circuit further includes a heat dissipation circuit, wherein:
the heat dissipation circuit comprises a second alternating current power supply, a second rectifier bridge, a safety capacitor and a heat dissipation fan, wherein the second alternating current power supply, the second rectifier bridge, the safety capacitor and the heat dissipation fan are electrically connected in sequence.
Optionally, the detection circuit includes a low voltage detection circuit, wherein:
the low-voltage detection circuit comprises an inductor, a first connecting port, a second connecting port, a high-level port, a low-voltage capacitor module, a voltage dividing resistor, a voltage stabilizing diode and a second triode, wherein the output end of the inductor is connected in series with the high-level port, the output end of the inductor is connected in parallel with the input end of the first connecting port and the input end of the low-voltage capacitor module between the high-level port, the output end of the low-voltage capacitor module is connected in parallel with the voltage stabilizing diode and the second triode, the collector electrode of the second triode is connected in parallel with the voltage dividing resistor and the second connecting port, and the voltage dividing resistor is connected in series with the low-level port.
Optionally, the detection circuit further includes a second power supply circuit and a high-voltage high-frequency circuit, wherein:
the second power supply circuit includes: the safety resistor is connected with the output end of the power supply circuit by taking the anode of the safety resistor as the input end of the detection circuit, the cathode of the safety resistor is connected with the compensation power supply and the safety capacitor module in parallel, the cathode of the safety capacitor module is grounded, the cathode of the safety resistor is connected with the anode of the rectification diode in series, and the cathode of the rectification diode is connected with the input end of the inductor of the low-voltage detection circuit and the high-voltage high-frequency circuit in parallel by taking the cathode of the rectification diode as the output end of the second power supply circuit;
the high-voltage high-frequency circuit comprises a live wire end, a zero line end, a first transformer, a high-voltage safety capacitor, a second transformer, a bidirectional diode, a high-voltage rectifying bridge, a charging power supply, a variable capacitor module and an energy storage circuit, wherein the first transformer and the high-voltage safety capacitor are connected in parallel between the live wire end and the zero line end, the live wire end is connected with a first pin of the high-voltage rectifying bridge, the zero line end is connected with a high-voltage end of the second transformer and an input end of the bidirectional diode in series, an output end of the bidirectional diode is connected with a third pin of the high-voltage rectifying bridge, the two ends of the bidirectional diode are connected with the energy storage circuit and the charging power supply in parallel, a second pin and a third pin of the high-voltage rectifying bridge are coupled with the variable capacitor module, and a low-voltage end of the second transformer is coupled with the protection circuit.
Optionally, the protection circuit includes a current protection circuit and a voltage protection circuit, wherein:
the current protection circuit comprises a low-voltage end of the second transformer, a first sampling protection circuit, an anti-reverse connection protection circuit, a shunt protection circuit and a first voltage comparison circuit, wherein the low-voltage end of the second transformer is coupled with the input end of the first sampling protection circuit, the first sampling protection circuit is connected with the anti-reverse connection protection circuit in parallel, the output end of the first sampling protection circuit is connected with the input end of the shunt protection circuit, the output end of the shunt protection circuit is coupled with the input end of the first voltage comparison circuit, and the output end of the first voltage comparison circuit is coupled with the voltage protection circuit.
Optionally, the voltage protection circuit includes a second sampling protection circuit, a shunt diode group, a voltage division protection circuit, a second voltage comparison circuit, an overload protection indication circuit, and a reset circuit, wherein:
the input end of the second sampling protection circuit is connected with the output end of the first voltage comparison circuit, the output end of the second sampling protection circuit is coupled with the shunt diode group, the voltage division protection circuit and the second voltage comparison circuit in parallel, the output end of the second voltage comparison circuit, the reset circuit and the input end of the overload protection indication circuit are coupled, the first output end of the overload protection indication circuit and the reset circuit are connected with the LED display lamp, and the second output end of the overload protection indication circuit is connected with the oscillation circuit.
Optionally, the oscillating circuit includes a first complementary push-pull circuit, a second complementary push-pull circuit, a bi-monostable trigger circuit, a pulse width modulation circuit, and a four-way differential comparator integrated circuit, wherein:
the second output end of the overload protection indicating circuit in the voltage protection circuit is connected with the third input end of the double monostable trigger circuit, the output end of the four-way differential comparator integrated circuit is connected with the first input end of the double monostable trigger circuit, the second input end of the double monostable trigger circuit is connected with the pulse width modulation circuit, the first output end of the double monostable trigger circuit is connected with the input end of the first complementary push-pull circuit, and the second output end of the double monostable trigger circuit is connected with the input end of the second complementary push-pull circuit.
According to the technical scheme, the heating control circuit of the aluminum foil sealing machine comprises a power circuit, a starting circuit, a detection circuit, a protection circuit and an oscillating circuit, wherein the 220v power supply is connected to the power circuit, the starting circuit receives a starting instruction, the detection circuit detects voltage, the protection circuit prevents a high-voltage breakdown circuit, the oscillating circuit controls output frequency, so that an external heating coil and an IGBT tube are controlled, the conduction time of the IGBT tube is controlled, namely the energy storage size of the heating coil is controlled, and the purpose of heat control is achieved.
Drawings
Fig. 1 is a schematic diagram of a heating control circuit of an aluminum foil sealing machine according to an embodiment of the present application;
fig. 2 is a circuit diagram of a starting circuit provided in an embodiment of the present application;
fig. 3 is a circuit diagram of a power supply circuit according to an embodiment of the present application;
fig. 4 is a circuit diagram of a detection circuit according to an embodiment of the present application;
fig. 5 is a circuit diagram of a protection circuit according to an embodiment of the present application;
fig. 6 is a circuit diagram of an oscillating circuit according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The voltage dividing resistor can be arbitrarily increased in the circuit, so that the voltage of each electronic element in the circuit is in a normal working voltage range.
Fig. 1 is a schematic diagram of a heating control circuit of an aluminum foil sealing machine, which includes a power circuit, a starting circuit, a detection circuit, a protection circuit, and an oscillation circuit, wherein:
the first input end of the protection circuit is connected with the detection circuit, the second input end of the protection circuit is connected with the power circuit, the third input end of the protection circuit is connected with the starting circuit, the power circuit is connected with the input end of the detection circuit and the second input end of the protection circuit in parallel, and the input end of the oscillation circuit is connected with the output end of the protection circuit.
Specifically, the power supply circuit can provide a stable power supply for the circuit, such as an access 220v power supply, the starting circuit is used for receiving a starting instruction and can be used as a switch for controlling the operation of the whole circuit, the detection circuit can be used for detecting the voltage output by the power supply circuit, the protection circuit can be used for preventing the condition of an electronic element of the connected high-voltage current breakdown circuit, and the oscillation circuit can be used for controlling the output frequency, so that an external heating coil and an IGBT tube are controlled, the conduction time of the IGBT tube is controlled, namely the energy storage size of the heating coil is controlled, and the purpose of heat control is achieved.
Compared with the prior art, the application has the beneficial effects that:
the first input end of the protection circuit is connected with the detection circuit, and parameters such as current, voltage and the like in the circuit can be monitored in real time so as to discover abnormal conditions of the circuit in time. The second input end of the protection circuit is connected with the power circuit, so that the monitoring and control of the power voltage can be realized, and the power voltage is ensured to work in a safe range. The third input end of the protection circuit is connected with the starting circuit, so that the starting and stopping control of the circuit can be realized, and the reliability and the safety of the circuit are improved. The power supply circuit is connected with the input end of the detection circuit and the second input end of the protection circuit in parallel, so that the real-time monitoring and protection of the power supply voltage can be realized, and the damage to the circuit caused by the overhigh or overlow power supply voltage is avoided. The input end of the oscillating circuit is connected with the output end of the protection circuit, so that the oscillating circuit can be protected, and the circuit is prevented from being damaged by abnormal conditions such as overcurrent and overvoltage in the oscillating circuit. In summary, the above connection mode can realize the omnibearing protection of the circuit, improve the reliability and the safety of the circuit, avoid the damage of the circuit abnormal condition to the circuit and the equipment, control the output frequency through the oscillating circuit, thereby controlling the external heating coil and the IGBT tube, realizing the control of the on time of the IGBT tube, namely controlling the energy storage size of the heating coil, and further achieving the purpose of heat control.
As an optional implementation manner, the low-voltage starting circuit includes a low-voltage power supply, a charging circuit, a photoelectric coupler, a light emitting diode, a unidirectional breakdown diode, a first dual-voltage comparator, a ground wire and a first triode, wherein the low-voltage power supply is connected with an input pin of the photoelectric coupler, an output pin of the photoelectric coupler is connected with the light emitting diode in parallel and then is connected with a collector of the first triode, a base of the first triode is connected with an output end of the first dual-voltage comparator, and an emitter of the first triode is grounded.
Specifically, as shown in fig. 2, the low-voltage power supply is +15v in the figure, the charging circuit is TR2 and G interface, the photocoupler is MOC3041 element, the led label LD1, the WORK can indicate that the element is working, the unidirectional breakdown diode label ZD2-4746, the first dual-voltage comparator label U6A, vch can indicate one end of the starting switch, the unidirectional breakdown diode label D16-4148, the first triode label Q9-9013, the voltage dividing resistor label respectively comprises R53-2K, R54-2K, R62-10K, R61-100K, R48-10K, R38-10K, R39-5.1K, R-10K, R-10K, the connection mode of each electronic element is as shown in fig. 2, and the negative electrode is finally connected with the ground line.
Further, the starting circuit further comprises a delay starting circuit, wherein: the delay starting circuit comprises a low-voltage power supply, a capacitor, a second dual-voltage comparator and a diode, wherein the base electrode of the first triode is connected with the first dual-voltage comparator in parallel with the delay starting circuit, the input end of the first dual-voltage comparator is connected with the unidirectional breakdown diode and the charging circuit in parallel, the low-voltage power supply and the capacitor are connected with the anode and the cathode of the second dual-voltage comparator in parallel, the output end of the second dual-voltage comparator is connected with the cathode of the diode, and the anode of the diode is connected with the base electrode of the first triode in the low-voltage starting circuit and the first dual-voltage comparator in parallel.
Specifically, as shown in fig. 2, the low-voltage power supply is a +15v power supply, the capacitor is labeled with the reference numeral C37-10U, the second dual-voltage comparator is labeled with the reference numeral U6B-LM393, the diode is labeled with the reference numeral D17-4148, the voltage dividing resistor is labeled with the reference numeral R51-100K, R-1K, R-10K, R63-10K, the connection mode of each electronic element is shown in fig. 2, and the negative electrode is finally connected with the ground line.
As an alternative embodiment, the power supply circuit comprises a first power supply circuit, wherein: the first power supply circuit comprises a first alternating current power supply, a first rectifier bridge, a voltage-stabilizing integrated block and a capacitor module, wherein the first alternating current power supply is coupled with the input end of the first rectifier bridge, the output end of the first rectifier bridge is connected with the input end of the voltage-stabilizing integrated block and the input end of the detection circuit in parallel, the output end of the voltage-stabilizing integrated block is connected with the positive electrode of the capacitor module, and the negative electrode of the capacitor module is grounded.
Specifically, as shown in fig. 3, the first AC power supply reference symbol J3-AC20V, the first rectifier bridge reference symbol DE3-2W10, the circuit may be further provided with a fuse reference symbol F1-2A, the voltage stabilizing integrated block reference symbol ZV1-7815, the capacitor module includes reference symbols C38-104, C31-100u/16V, C32-104, C33-100u/16V, C-104, C9-104, C39-104, C12-470u/25V, C-220 u/16V, C-220 u/16 8629-220 u/16V, C27-104, C30-104, C35-104, and C36-104, the capacitor module is further provided with a resistance wire R57-4.7/0.5W, vin may represent the other end of the starting switch, and a capacitor C7-1000u/35V is further provided between the first rectifier bridge and the voltage stabilizing integrated block, and the connection manner of each electronic component is shown in fig. 3.
Further, the power supply circuit further includes a heat dissipation circuit, wherein: the heat dissipation circuit comprises a second alternating current power supply, a second rectifier bridge, a safety capacitor and a heat dissipation fan, wherein the second alternating current power supply, the second rectifier bridge, the safety capacitor and the heat dissipation fan are electrically connected in sequence.
Specifically, as shown in fig. 3, the second AC power supply is denoted by J4-AC10V, the circuit is also provided with fuses F2-3A, the second rectifier bridge is denoted by DE4-KBPC608, the safety capacitors C11-104, 4 heat dissipation fans are provided, the reference numerals Feng1-2, a capacitor C8-3300u/25V is further provided between the safety capacitors and the second rectifier bridge, and two ends of the safety capacitors are further provided with complementary 12V power supplies.
As an alternative embodiment, the detection circuit comprises a low voltage detection circuit, wherein: the low-voltage detection circuit comprises an inductor, a first connecting port, a second connecting port, a high-level port, a low-voltage capacitor module, a voltage dividing resistor, a voltage stabilizing diode and a second triode, wherein the output end of the inductor is connected in series with the high-level port, the output end of the inductor is connected in parallel with the input end of the first connecting port and the input end of the low-voltage capacitor module between the high-level port, the output end of the low-voltage capacitor module is connected in parallel with the voltage stabilizing diode and the second triode, the collector electrode of the second triode is connected in parallel with the voltage dividing resistor and the second connecting port, and the voltage dividing resistor is connected in series with the low-level port.
Specifically, as shown in fig. 4, the inductor reference number L2-314.8uH, the first connection reference number J10-12, the second connection reference number J11-21, the high level port reference number SUH, the low level port SUL, the voltage capacitive module including a capacitor of C10-225J/700V, C-225J/700V, the voltage dividing resistor including reference number R27-200K/3W, R5-300K/3W, R4-300K/3W, R3-10K, the zener diode reference number D7-P6KE16CA, the second triode may be a BT tube of reference number G1-G1BT, i.e. an insulated gate bipolar transistor, the base of the second triode being connected with an O1 connection port, the connection mode of each electronic component being shown in fig. 4.
Further, the detection circuit further comprises a second power supply circuit and a high-voltage high-frequency circuit, wherein:
s1, the second power supply circuit comprises: the safety resistor, the compensation power, the safety capacitor module, rectifier diode, the positive pole of safety resistor is as detection circuitry's input with power supply circuit's output is connected, the negative pole of safety resistor with compensation power, safety capacitor module are parallelly connected, the negative pole ground connection of safety capacitor module, the negative pole of safety resistor with rectifier diode's positive pole is established ties, rectifier diode's negative pole is as second power supply circuit's output with low-voltage detection circuitry's input and high-voltage high-frequency circuit are parallelly connected.
Specifically, the safety resistor is denoted by R3-100/3W, the compensation power supply interface end is denoted by Vch, the safety capacitor module comprises capacitors denoted by C32-104 and C31-1000uV, the negative electrode of the capacitor is grounded, and the rectifier diode is denoted by D6-1N4007, and the connection mode of the electronic elements is shown in FIG. 4.
S2, the high-voltage high-frequency circuit comprises a fire wire end, a zero wire end, a first transformer, a high-voltage safety capacitor, a second transformer, a bidirectional diode, a high-voltage rectifier bridge, a charging power supply, a variable capacitor module and an energy storage circuit, wherein the first transformer and the high-voltage safety capacitor are connected in parallel between the fire wire end and the zero wire end, the fire wire end is connected with a first pin of the high-voltage rectifier bridge, the zero wire end is connected with a high-voltage end of the second transformer and an input end of the bidirectional diode in series, an output end of the bidirectional diode is connected with a third pin of the high-voltage rectifier bridge, the two ends of the bidirectional diode are connected with the energy storage circuit and the charging power supply in parallel, a second pin and a third pin of the high-voltage rectifier bridge are coupled with the variable capacitor module, and a low-voltage end of the second transformer is coupled with the protection circuit.
Specifically, the fire wire end is marked with J2-ACL, the zero wire end is marked with J15-ACN, the first transformer is marked with L1-2.52mH, the high-voltage safety capacitor is marked with C1-2u/275V, the second transformer is marked with CT1, the bidirectional diode is marked with Q6-BTA41, the high-voltage rectifier bridge is marked with 1DE1-KBPC5010, the charging power supply is connected with port mark TR2/G, the variable capacitor module comprises C2-220u/450V, C3-220u/450V capacitor, the energy storage circuit comprises C17-473/630V capacitor and R32-51/1W resistor, the first pin of the high-voltage rectifier bridge is marked with 1DE1-KBPC5010, and other pins are similarly marked, and the connection mode of all electronic elements is shown in figure 4.
As an alternative embodiment, the protection circuit comprises a current protection circuit and a voltage protection circuit, wherein: the current protection circuit comprises a low-voltage end of the second transformer, a first sampling protection circuit, an anti-reverse connection protection circuit, a shunt protection circuit and a first voltage comparison circuit, wherein the low-voltage end of the second transformer is coupled with the input end of the first sampling protection circuit, the first sampling protection circuit is connected with the anti-reverse connection protection circuit in parallel, the output end of the first sampling protection circuit is connected with the input end of the shunt protection circuit, the output end of the shunt protection circuit is coupled with the input end of the first voltage comparison circuit, and the output end of the first voltage comparison circuit is coupled with the voltage protection circuit.
Specifically, as shown in fig. 5, the second transformer reference CT1, the first sampling protection circuit comprises reference C16-104 capacitors, reference R44-20K, R45-680, and R65-2K, R-2K resistors, the anti-reverse connection protection circuit comprises reference D4-1N4007, D1-1N4007 diodes, and C18-22U/16V capacitors, the shunt protection circuit comprises reference VR3-102 variable resistors, R47-1.8K resistors, C19-104 capacitors, and R46-4.7K resistors, the first voltage comparison circuit comprises reference U4A-LM393 voltage comparators, and the connection modes of the electronic components are shown in fig. 5.
Further, the voltage protection circuit includes second sampling protection circuit, shunt diode group, partial pressure protection circuit, second voltage comparison circuit, overload protection indicating circuit, reset circuit, wherein: the input end of the second sampling protection circuit is connected with the output end of the first voltage comparison circuit, the output end of the second sampling protection circuit is coupled with the shunt diode group, the voltage division protection circuit and the second voltage comparison circuit in parallel, the output end of the second voltage comparison circuit, the reset circuit and the input end of the overload protection indication circuit are coupled, the first output end of the overload protection indication circuit and the reset circuit are connected with the LED display lamp, and the second output end of the overload protection indication circuit is connected with the oscillation circuit.
Specifically, as shown in fig. 5, the second sampling protection circuit comprises resistors with the reference number of R43-10K, R-10K, the shunt diode group comprises diodes with the reference number of D14-1N4148 and D171N4148, the voltage division protection circuit comprises resistors with the reference number of R37-12K, R15-10K, R-10K, variable resistor VR4-103 and capacitor C21-104, the second voltage comparison circuit comprises a voltage comparator with the reference number of U4B-LM393, and the reset circuit comprises a connection port with the reference number of Vin, resistor R40-10K, resistor R52-4.7K and capacitor C20-104. The overload protection indicating circuit comprises a +15V low-voltage power supply, a resistor with the number of R35-10K, R-1K, R-100K, R-100K, R-100, a diode with the number of D15-1N4148 and D8-1N4148, a NAND gate element with the number of U3A-4011 and U3B-4011, a variable capacitor with the number of C26-10U/16V, a triode with the number of Q7-9013, a capacitor with the number of C24-104 and an LED display lamp with the number of J9-SW-LED, and the connection mode of all the electronic elements is shown in figure 5.
As an alternative embodiment, the oscillating circuit includes a first complementary push-pull circuit, a second complementary push-pull circuit, a bi-monostable flip-flop, a pulse width modulation circuit, a four-way differential comparator integrated circuit, wherein: the second output end of the overload protection indicating circuit in the voltage protection circuit is connected with the third input end of the double monostable trigger circuit, the output end of the four-way differential comparator integrated circuit is connected with the first input end of the double monostable trigger circuit, the second input end of the double monostable trigger circuit is connected with the pulse width modulation circuit, the first output end of the double monostable trigger circuit is connected with the input end of the first complementary push-pull circuit, and the second output end of the double monostable trigger circuit is connected with the input end of the second complementary push-pull circuit.
Specifically, as shown in FIG. 6, the first complementary push-pull circuit comprises a resistor R21-390K, a triode Q4-9013, a triode Q2-9012, a resistor R24-10, a +15V power supply and an O1 connection port, the second complementary push-pull circuit comprises a resistor R23-390K, a triode Q5-9013, a triode Q3-9012, a resistor R25-10 and an O2 connection port, and the complementary push-pull circuit mainly drives an IGBT tube, when an input signal is positive, the NPN tube in bipolar is conducted and PNP is automatically cut off due to polarity, when the input signal of the circuit is negative, the NPN tube is conducted and cut-off, and the circuit work can be completed by automatically completing the conduction and cut-off regardless of the change of the signal. The bistable trigger circuit comprises a CC4098 chip and a +VCC power supply, wherein the +VCC power supply can be 15V, and the pulse width modulation circuit comprises a R63-3K3 resistor, a R64-3K3 resistor, a VR1-103 variable resistor, a VR2-103 variable resistor, a C6-471 capacitor and a J14-VR variable resistor. The four-way differential comparator integrated circuit comprises an LM339 integrated chip, and the following is a description of the connection of each pin of the LM339 integrated chip: the pin 9 is connected with SUL connection port, ZD2-6.2V diode, R1-3.9K resistor, pin 3 is connected with +VCC power supply, pin 12 is grounded, pin 7 is connected with +VCC power supply, R7-100K resistor, R9-20K resistor, D12-1N4148 diode, C13-47u/16V capacitor, pin 8 is connected with SUH connection port, D2-1N4007 diode, D31N4007 diode, R6-100K piezoresistor, R8-20K voltage-sensitive electron, +VCC power supply, C14-332 capacitor, R28-303K resistor, 1, 10, 11, 14, pin are respectively connected with +VCC power supply, Q1-9012 triode, R16-100 resistor, R17-100 electron, R13-10K resistor, R12-10K resistor, R19-2K resistor, C5-101 capacitor, R22-1K resistor, R29-390K resistor, 2, 4, pin 5, R13-10K resistor, R14-33, R10K resistor, R10-15K resistor, R10-15-33 and R20K resistor are respectively connected with R14-332 resistor, R14-303K resistor, R15-15K resistor, R10-15 and R15-15K resistor respectively.
As an optional implementation mode, the circuit working principle of the device is that AC220V is input, rectified by a bridge rectifier, filtered by an inductor and a capacitor to obtain about 300V direct current, a loop is formed by a heating coil and an IGBT tube, when the IGBT tube is conducted, 300V charges the heating coil, electric energy is converted into electromagnetic energy to be stored in the heating coil, when the IGBT is cut off, the heating coil charges a capacitor, then the capacitor discharges to the heating coil again, the resonant frequency of the capacitor is determined by the inductance and the capacitor of the heating coil in a repeated mode (namely, the heating coil and the capacitor of a sealing head form a parallel resonant loop), the IGBT tube works at a certain frequency under the driving of a switching pulse output by a control circuit, and the heating coil generates 70KHZ-90KHZ high-frequency alternating current. The conduction time of the IGBT tube is controlled, namely the energy storage size of the heating coil is controlled, so that the power of vortex is changed, and the purpose of heat control is achieved.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and each embodiment may be combined with each other, and the same similar parts may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides an aluminium foil capper heating control circuit which characterized in that includes power supply circuit, starting circuit, detection circuitry, protection circuit, oscillation circuit, wherein:
the first input end of the protection circuit is connected with the detection circuit, the second input end of the protection circuit is connected with the power circuit, the third input end of the protection circuit is connected with the starting circuit, the power circuit is connected with the input end of the detection circuit and the second input end of the protection circuit in parallel, and the input end of the oscillation circuit is connected with the output end of the protection circuit;
the power supply circuit comprises a first power supply circuit, wherein:
the first power supply circuit comprises a first alternating current power supply, a first rectifier bridge, a voltage-stabilizing integrated block and a capacitor module, wherein the first alternating current power supply is coupled with the input end of the first rectifier bridge, the output end of the first rectifier bridge is connected with the input end of the voltage-stabilizing integrated block and the input end of the detection circuit in parallel, the output end of the voltage-stabilizing integrated block is connected with the positive electrode of the capacitor module, and the negative electrode of the capacitor module is grounded;
the detection circuit includes a low voltage detection circuit, wherein:
the low-voltage detection circuit comprises an inductor, a first connection port, a second connection port, a high-level port, a low-voltage capacitor module, a voltage dividing resistor, a voltage stabilizing diode and a second triode, wherein the output end of the inductor is connected in series with the high-level port, the output end of the inductor is connected in parallel with the first connection port and the input end of the low-voltage capacitor module between the high-level port and the output end of the inductor, the output end of the low-voltage capacitor module is connected in parallel with the voltage stabilizing diode and the second triode, the collector electrode of the second triode is connected in parallel with the voltage dividing resistor and the second connection port, and the voltage dividing resistor is connected in series with the low-level port;
the detection circuit further comprises a second power supply circuit and a high-voltage high-frequency circuit, wherein:
the second power supply circuit includes: the safety resistor is connected with the output end of the power supply circuit by taking the anode of the safety resistor as the input end of the detection circuit, the cathode of the safety resistor is connected with the compensation power supply and the safety capacitor module in parallel, the cathode of the safety capacitor module is grounded, the cathode of the safety resistor is connected with the anode of the rectification diode in series, and the cathode of the rectification diode is connected with the input end of the inductor of the low-voltage detection circuit and the high-voltage high-frequency circuit in parallel by taking the cathode of the rectification diode as the output end of the second power supply circuit;
the high-voltage high-frequency circuit comprises a live wire end, a zero wire end, a first transformer, a high-voltage safety capacitor, a second transformer, a bidirectional diode, a high-voltage rectifier bridge, a charging power supply, a variable capacitor module and a storage circuit, wherein the first transformer and the high-voltage safety capacitor are connected in parallel between the live wire end and the zero wire end, the live wire end is connected with a first pin of the high-voltage rectifier bridge, the zero wire end is connected with a high-voltage end of the second transformer and an input end of the bidirectional diode in series, an output end of the bidirectional diode is connected with a third pin of the high-voltage rectifier bridge, two ends of the bidirectional diode are connected with the storage circuit and the charging power supply in parallel, a second pin and a third pin of the high-voltage rectifier bridge are coupled with the variable capacitor module, and a low-voltage end of the second transformer is coupled with the protection circuit;
the protection circuit includes a current protection circuit and a voltage protection circuit, wherein:
the current protection circuit comprises a low-voltage end of the second transformer, a first sampling protection circuit, an anti-reverse connection protection circuit, a shunt protection circuit and a first voltage comparison circuit, wherein the low-voltage end of the second transformer is coupled with the input end of the first sampling protection circuit, the first sampling protection circuit is connected with the anti-reverse connection protection circuit in parallel, the output end of the first sampling protection circuit is connected with the input end of the shunt protection circuit, the output end of the shunt protection circuit is coupled with the input end of the first voltage comparison circuit, and the output end of the first voltage comparison circuit is coupled with the voltage protection circuit;
the voltage protection circuit comprises a second sampling protection circuit, a shunt diode group, a voltage division protection circuit, a second voltage comparison circuit, an overload protection indication circuit and a reset circuit, wherein:
the input end of the second sampling protection circuit is connected with the output end of the first voltage comparison circuit, the output end of the second sampling protection circuit is coupled with the shunt diode group, the voltage division protection circuit and the second voltage comparison circuit in parallel, the output end of the second voltage comparison circuit, the reset circuit and the input end of the overload protection indication circuit are coupled, the first output end of the overload protection indication circuit and the reset circuit are connected with the LED display lamp, and the second output end of the overload protection indication circuit is connected with the oscillation circuit;
the oscillating circuit comprises a first complementary push-pull circuit, a second complementary push-pull circuit, a double monostable trigger circuit, a pulse width modulation circuit and a four-way differential comparator integrated circuit, wherein:
the second output end of the overload protection indicating circuit in the voltage protection circuit is connected with the third input end of the double monostable trigger circuit, the output end of the four-way differential comparator integrated circuit is connected with the first input end of the double monostable trigger circuit, the second input end of the double monostable trigger circuit is connected with the pulse width modulation circuit, the first output end of the double monostable trigger circuit is connected with the input end of the first complementary push-pull circuit, and the second output end of the double monostable trigger circuit is connected with the input end of the second complementary push-pull circuit.
2. The aluminum foil sealing machine heating control circuit of claim 1, wherein the start-up circuit comprises a low voltage start-up circuit, wherein:
the low-voltage starting circuit comprises a low-voltage power supply, a charging circuit, a photoelectric coupler, a light emitting diode, a unidirectional breakdown diode, a first dual-voltage comparator, a ground wire and a first triode, wherein the low-voltage power supply is connected with an input pin of the photoelectric coupler, an output pin of the photoelectric coupler is connected with a collector electrode of the first triode after being connected with the light emitting diode in parallel, a base electrode of the first triode is connected with an output end of the first dual-voltage comparator, and an emitter electrode of the first triode is grounded.
3. The aluminum foil sealing machine heating control circuit of claim 2, wherein the start-up circuit further comprises a time delay start-up circuit, wherein:
the delay starting circuit comprises a low-voltage power supply, a capacitor, a second dual-voltage comparator and a diode, wherein the base electrode of the first triode is connected with the first dual-voltage comparator in parallel with the delay starting circuit, the input end of the first dual-voltage comparator is connected with the unidirectional breakdown diode and the charging circuit in parallel, the low-voltage power supply and the capacitor are connected with the anode and the cathode of the second dual-voltage comparator in parallel, the output end of the second dual-voltage comparator is connected with the cathode of the diode, and the anode of the diode is connected with the base electrode of the first triode in the low-voltage starting circuit and the first dual-voltage comparator in parallel.
4. The aluminum foil sealing machine heating control circuit of claim 1, wherein the power circuit further comprises a heat dissipation circuit, wherein:
the heat dissipation circuit comprises a second alternating current power supply, a second rectifier bridge, a safety capacitor and a heat dissipation fan, wherein the second alternating current power supply, the second rectifier bridge, the safety capacitor and the heat dissipation fan are electrically connected in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310750814.6A CN116639341B (en) | 2023-06-25 | 2023-06-25 | Heating control circuit of aluminum foil sealing machine |
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| CN202310750814.6A CN116639341B (en) | 2023-06-25 | 2023-06-25 | Heating control circuit of aluminum foil sealing machine |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016390A (en) * | 1972-11-15 | 1977-04-05 | Matsushita Electric Industrial Co., Ltd. | Induction heating apparatus with protective circuit arrangement |
| TW330184B (en) * | 1995-09-25 | 1998-04-21 | Nordson Corp | Electric gun driver |
| CN2307738Y (en) * | 1997-01-14 | 1999-02-17 | 金建民 | Electromagnetic induction type aluminium foil sealing machine |
| CN2471057Y (en) * | 2001-02-19 | 2002-01-09 | 林国明 | Preheating typ all-digital electronic ballast |
| CN1363442A (en) * | 2002-02-09 | 2002-08-14 | 宣浩 | Tool and mould repairing mechine with unique protecting function |
| CN201310962Y (en) * | 2008-10-13 | 2009-09-16 | 周卫国 | IGBT (Insulated Gate Bipolar Transistor) protection device of induction cooker |
| CN102833898A (en) * | 2012-08-16 | 2012-12-19 | 东莞市天冠节能科技有限公司 | Electromagnetic heating device manufacturing method and electromagnetic heating device manufactured by same |
| CN205793451U (en) * | 2016-06-14 | 2016-12-07 | 汕头高新区贝多电磁科技有限公司 | A kind of magnetic metal wire rod quickly senses heater |
| CN206394997U (en) * | 2017-01-16 | 2017-08-11 | 东莞市德旭玩具有限公司 | A kind of electromagnetic induction aluminium foil sealing machine |
| CN207447547U (en) * | 2017-07-14 | 2018-06-05 | 中国人民解放军空军工程大学 | A kind of induction heating electric iron circuit and electric iron |
| CN209821640U (en) * | 2019-06-17 | 2019-12-20 | 佛山市南海康莱达机电制造有限公司 | Control circuit of dough mixer |
| CN113251395A (en) * | 2021-01-28 | 2021-08-13 | 启研(沈阳)技术中心有限公司 | Steam generator's controlling means based on electromagnetic induction heating technique |
-
2023
- 2023-06-25 CN CN202310750814.6A patent/CN116639341B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016390A (en) * | 1972-11-15 | 1977-04-05 | Matsushita Electric Industrial Co., Ltd. | Induction heating apparatus with protective circuit arrangement |
| TW330184B (en) * | 1995-09-25 | 1998-04-21 | Nordson Corp | Electric gun driver |
| CN2307738Y (en) * | 1997-01-14 | 1999-02-17 | 金建民 | Electromagnetic induction type aluminium foil sealing machine |
| CN2471057Y (en) * | 2001-02-19 | 2002-01-09 | 林国明 | Preheating typ all-digital electronic ballast |
| CN1363442A (en) * | 2002-02-09 | 2002-08-14 | 宣浩 | Tool and mould repairing mechine with unique protecting function |
| CN201310962Y (en) * | 2008-10-13 | 2009-09-16 | 周卫国 | IGBT (Insulated Gate Bipolar Transistor) protection device of induction cooker |
| CN102833898A (en) * | 2012-08-16 | 2012-12-19 | 东莞市天冠节能科技有限公司 | Electromagnetic heating device manufacturing method and electromagnetic heating device manufactured by same |
| CN205793451U (en) * | 2016-06-14 | 2016-12-07 | 汕头高新区贝多电磁科技有限公司 | A kind of magnetic metal wire rod quickly senses heater |
| CN206394997U (en) * | 2017-01-16 | 2017-08-11 | 东莞市德旭玩具有限公司 | A kind of electromagnetic induction aluminium foil sealing machine |
| CN207447547U (en) * | 2017-07-14 | 2018-06-05 | 中国人民解放军空军工程大学 | A kind of induction heating electric iron circuit and electric iron |
| CN209821640U (en) * | 2019-06-17 | 2019-12-20 | 佛山市南海康莱达机电制造有限公司 | Control circuit of dough mixer |
| CN113251395A (en) * | 2021-01-28 | 2021-08-13 | 启研(沈阳)技术中心有限公司 | Steam generator's controlling means based on electromagnetic induction heating technique |
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| CN116639341A (en) | 2023-08-25 |
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