A power panel circuit for a sealing machine

Abstract

The utility model discloses a power panel circuit for sealing machine, including power panel circuit, power panel circuit includes commercial voltage detection circuit, heating detection circuit, air pressure detection circuit, switching power supply circuit, zero -crossing detection circuit, heating circuit, NTC detection circuit, water pump drive circuit and solenoid valve drive circuit, the utility model discloses a power panel circuit for sealing machine, sets up NTC detection circuit in this circuit and inducts the sealing temperature in sealing machine, and heating detection circuit detects the heating temperature of sealing bag, and solenoid valve drive circuit, water pump drive circuit and air pressure detection circuit control and adjust the power of each equipment drive close in sealing machine in real time, and air pressure detection circuit, zero -crossing detection circuit and switching power supply circuit detect the air pressure and power of each equipment in sealing machine in real time, satisfy the demand of people to sealing machine intelligent control, and guarantee the safety of power panel operation, and the practicality is high.

Description

Technical Field

[0001] This utility model relates to the field of sealing machine technology, specifically to a power board circuit for a sealing machine. Background Technology

[0002] A sealing machine is a mechanical device used to seal containers containing products. Its main function is to maintain product quality, extend shelf life, and prevent product loss or contamination. It seals packaging containers such as plastic bags, tubes, and barrels through heat sealing, ultrasonic welding, or vacuum technology to prevent air, moisture, or bacteria from entering, thereby protecting the contents. The power board circuit on the sealing machine converts the external power supply into a stable voltage required by the equipment, such as 12-15V low voltage or 110V / 220V high voltage, to ensure the normal operation of components such as heating elements and vacuum pumps.

[0003] However, traditional power board circuits have the following drawbacks:

[0004] Traditional power board circuits can only transmit electrical energy, which cannot meet people's needs for controlling the heating power supply and vacuum pump power supply during sealing. They have low practicality. Utility Model Content

[0005] The purpose of this utility model is to provide a power board circuit for a sealing machine, so as to solve the problem mentioned in the background art that the traditional power board circuit can only transmit electrical energy and cannot meet people's control needs for heating power and vacuum pump power during sealing, resulting in low practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a power board circuit for a sealing machine, comprising a power board circuit including an AC voltage detection circuit, a heating detection circuit, an air pressure detection circuit, a switching power supply circuit, a zero-crossing detection circuit, a heating circuit, an NTC detection circuit, a water pump drive circuit, and a solenoid valve drive circuit.

[0007] Preferably, the zero-crossing detection circuit includes resistor R9 and resistor R10, one end of resistor R9 is connected to one end of resistor R10, the other end of resistor R9 is connected to ACN-1, and one end of resistor R10 is connected to ZERO.

[0008] Preferably, the heating circuit includes a resistor R16, a transistor TR1, a fuse FUSE-HEAT, a fuse FUSE-HEAT2, and a fuse HEAT-L. One pin of the transistor TR1 is connected to ACL, one pin of the transistor TR1 is connected to one end of the fuse FUSE-HEAT, one pin of the transistor TR1 is connected to one end of the resistor R16, the other end of the resistor R16 is connected to HEAT, and one end of the fuse FUSE-HEAT2 and one end of the fuse HEAT-L are both connected to HEAT-L.

[0009] Preferably, the NTC detection circuit includes resistor R18, resistor R17, capacitor C4, and temperature coefficient thermistor NTC. One pin of the temperature coefficient thermistor NTC is connected to one end of resistor R17, one end of capacitor C4, and one end of resistor R18, respectively. The other ends of resistor R17 and capacitor C4 are both grounded. The other pin of the temperature coefficient thermistor NTC is connected to a +5V power supply.

[0010] Preferably, the water pump drive circuit includes connector CN4, diode D6, transistor Q2, resistor R19, and resistor R20. Pin 1 of connector CN4 is connected to one end of diode D6 and pin D of transistor Q2. Pin G of transistor Q2 is connected to one end of resistor R19 and one end of resistor R20. Pin S of transistor Q2 and the other end of resistor R19 are both grounded. Pin 1 of connector CN4 and the other end of diode D6 are both connected to a +12V power supply.

[0011] Preferably, the solenoid valve drive circuit includes connector CN3, diode D7, transistor Q3, resistor R29, and resistor R28. Pin 1 of connector CN3 is connected to one end of diode D7 and pin D of transistor Q3, pin G of transistor Q3 is connected to one end of resistor R29 and one end of resistor R28, pin S of transistor Q3 and the other end of resistor R29 are both grounded, and pin 2 of connector CN3 and the other end of diode D7 are both connected to a +12V power supply.

[0012] Preferably, the mains voltage detection circuit includes resistors R26, R11, R12, and R13, and a surface-mount capacitor EC5. One end of resistor R26 is connected to one end of resistor R11, the other end of resistor R11 is connected to one end of resistor R12, the other end of resistor R12 is connected to one end of resistor R13 and one end of surface-mount capacitor EC5, and the other ends of resistor R13 and surface-mount capacitor EC5 are both grounded.

[0013] Preferably, the heating detection circuit includes resistors R21, R22, and R23. One end of resistor R21 is connected to one end of resistor R22, the other end of resistor R22 is connected to one end of resistor R23 and HEAT ZERO respectively, and the other end of resistor R23 is grounded.

[0014] Preferably, the air pressure detection circuit includes a connector CN5 and a resistor R27, with one pin of the connector CN5 connected to one end of the resistor R27, and the other pin of the connector CN5 grounded.

[0015] Preferably, the switching power supply circuit includes resistors R1 and R2, diodes D1 and D2, inductor L1, surface mount capacitors EC1 and EC2, resistors R3 and R4, capacitor C1, control chip IC1, resistors R5, R6, and R7, capacitors C1 and C8, surface mount capacitor EC3, diodes D3, D4, and D5, inductor L2, and transistor Q1. Pin 2 of control chip IC1 is connected to one end of capacitor C1. Pin 4 of control chip IC1 is connected to one end of resistors R3 and R4, respectively. Pin 5 of control chip IC1 is connected to one end of resistors R5, R6, and R7, respectively. The other end of resistor R5 is connected to one end of diode D3. The other end of resistor R6 is connected to one end of inductor L2. The other end of resistor R7 is connected to diode D1. One end of 4 is connected; pin 6 of the control chip IC1 is connected to pin G of the transistor; pin S of the transistor Q1 is connected to the end opposite to resistor R7; the other end of the inductor L2 is connected to one end of the surface-mount capacitor E3 and one end of resistor R8; the two ends of capacitor CX1 are connected to one end of resistor R1, one end of diode D1, and one end of resistor R2; the other end of resistor R1 is connected to the other end of resistor R2; the other end of diode D1 is connected to one end of diode D2; the other end of diode D2 is connected to one end of inductor L1 and one end of surface-mount capacitor EC1; the other end of inductor L1 is connected to one end of surface-mount capacitor EC2; the other ends of diode D3, surface-mount capacitor EC1, surface-mount capacitor EC2, diode D4, surface-mount capacitor EC3, and resistor R8 are all grounded.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the circuit is equipped with an NTC detection circuit to sense the sealing temperature inside the sealing machine, a heating detection circuit to detect the heating temperature of the sealing bag, a solenoid valve drive circuit, a water pump drive circuit, and an air pressure detection circuit to control and adjust the power supply of each device inside the sealing machine in real time, and an air pressure detection circuit, a zero-crossing detection circuit, and a switching power supply circuit to detect the air pressure and power supply of each device inside the sealing machine in real time. This meets people's needs for intelligent control of the sealing machine, ensures the safety of the power board operation, and has high practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the architecture of this utility model;

[0018] Figure 2 This is a circuit diagram of the zero-crossing detection circuit of this utility model;

[0019] Figure 3 This is a circuit diagram of the heating circuit of this utility model;

[0020] Figure 4 This is a circuit diagram of the NTC detection circuit of this utility model;

[0021] Figure 5 This is a circuit diagram of the water pump drive circuit of this utility model;

[0022] Figure 6 This is a circuit diagram of the solenoid valve drive circuit of this utility model;

[0023] Figure 7 This is a circuit diagram of the mains voltage detection circuit of this utility model;

[0024] Figure 8 This is a circuit diagram of the heating detection circuit of this utility model;

[0025] Figure 9 This is a circuit diagram of the air pressure detection circuit of this utility model;

[0026] Figure 10 This is the circuit diagram of the switching power supply circuit of this utility model. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figure 1-10 This utility model provides a power board circuit for a sealing machine, including a power board circuit comprising an AC voltage detection circuit, a heating detection circuit, an air pressure detection circuit, a switching power supply circuit, a zero-crossing detection circuit, a heating circuit, an NTC detection circuit, a water pump drive circuit, and a solenoid valve drive circuit.

[0029] The zero-crossing detection circuit includes resistors R9 and R10. One end of resistor R9 is connected to one end of resistor R10, and the other end of resistor R9 is connected to ACN-1. One end of resistor R10 is connected to ZERO.

[0030] The heating circuit includes a resistor R16, a transistor TR1, a fuse FUSE-HEAT, a fuse FUSE-HEAT2, and a fuse HEAT-L. One pin of transistor TR1 is connected to ACL, one pin of transistor TR1 is connected to one end of fuse FUSE-HEAT, one pin of transistor TR1 is connected to one end of resistor R16, and the other end of resistor R16 is connected to HEAT. One end of fuse FUSE-HEAT2 and one end of fuse HEAT-L are both connected to HEAT-L.

[0031] The NTC detection circuit includes resistors R18 and R17, capacitor C4, and a temperature coefficient thermistor NTC. One pin of the temperature coefficient thermistor NTC is connected to one end of resistor R17, one end of capacitor C4, and one end of resistor R18. The other ends of resistor R17 and capacitor C4 are grounded. The other pin of the temperature coefficient thermistor NTC is connected to a +5V power supply.

[0032] The water pump drive circuit includes connector CN4, diode D6, transistor Q2, resistor R19, and resistor R20. Pin 1 of connector CN4 is connected to one end of diode D6 and pin D of transistor Q2. Pin G of transistor Q2 is connected to one end of resistor R19 and one end of resistor R20. Pin S of transistor Q2 and the other end of resistor R19 are both grounded. Pin 1 of connector CN4 and the other end of diode D6 are both connected to a +12V power supply.

[0033] The solenoid valve drive circuit includes connector CN3, diode D7, transistor Q3, resistor R29, and resistor R28. Pin 1 of connector CN3 is connected to one end of diode D7 and pin D of transistor Q3. Pin G of transistor Q3 is connected to one end of resistor R29 and one end of resistor R28. Pin S of transistor Q3 and the other end of resistor R29 are both grounded. Pin 2 of connector CN3 and the other end of diode D7 are both connected to a +12V power supply.

[0034] The mains voltage detection circuit includes resistors R26, R11, R12, and R13, and surface-mount capacitor EC5. One end of resistor R26 is connected to one end of resistor R11, and the other end of resistor R11 is connected to one end of resistor R12. The other end of resistor R12 is connected to one end of resistor R13 and one end of surface-mount capacitor EC5. The other ends of resistor R13 and surface-mount capacitor EC5 are both grounded.

[0035] The heating detection circuit includes resistors R21, R22 and R23. One end of resistor R21 is connected to one end of resistor R22. The other end of resistor R22 is connected to one end of resistor R23 and HEAT ZERO respectively. The other end of resistor R23 is grounded.

[0036] The air pressure detection circuit includes connector CN5 and resistor R27. One pin of connector CN5 is connected to one end of resistor R27, and the other pin of connector CN5 is grounded.

[0037] The switching power supply circuit includes resistors R1 and R2, diodes D1 and D2, inductor L1, surface mount capacitors EC1 and EC2, resistors R3 and R4, capacitor C1, control chip IC1, resistors R5, R6, and R7, capacitors CX1 and R8, surface mount capacitor EC3, diodes D3, D4, and D5, inductor L2, and transistor Q1. Pin 2 of control chip IC1 is connected to one end of capacitor C1. Pin 4 of control chip IC1 is connected to one end of resistors R3 and R4 respectively. Pin 5 of control chip IC1 is connected to one end of resistors R5, R6, and R7 respectively. The other end of resistor R5 is connected to one end of diode D3, the other end of resistor R6 is connected to one end of inductor L2, and the other end of resistor R7 is connected to diode D4. One end of 4 is connected. Pin 6 of the control chip IC1 is connected to pin G of the transistor. Pin S of the transistor Q1 is connected to the end opposite to resistor R7. The other end of inductor L2 is connected to the end of surface-mount capacitor E3 and one end of resistor R8. The two ends of capacitor CX1 are connected to one end of resistor R1, one end of diode D1 and one end of resistor R2. The other end of resistor R1 is connected to the other end of resistor R2. The other end of diode D1 is connected to one end of diode D2. The other end of diode D2 is connected to one end of inductor L1 and one end of surface-mount capacitor EC1. The other end of inductor L1 is connected to one end of surface-mount capacitor EC2. The other ends of diode D3, surface-mount capacitor EC1, surface-mount capacitor EC2, diode D4, surface-mount capacitor EC3 and resistor R8 are all grounded.

[0038] In this embodiment, the mains voltage detection circuit monitors the mains voltage status, ensuring the equipment switches to backup power or protection mode when the voltage is abnormal, and also provides a phase synchronization signal for system control. The heating detection circuit monitors the temperature changes of the heating and sealing equipment in real time, ensuring that the temperature parameters are within a safe range. The air pressure detection circuit converts the vacuum pump air pressure changes into electrical signals for measurement and monitoring. The switching power supply circuit uses high-frequency power conversion technology to efficiently convert the input electrical energy into a stable DC output required by the equipment. The zero-crossing detection circuit detects the zero point when the positive and negative half-waves of the AC signal alternate. The heating circuit generates heat through power conversion to heat objects or the environment, completing the sealing process. The NTC detection circuit reflects the internal temperature of the sealing machine by measuring the resistance change of the NTC thermistor. The water pump drive circuit converts the control signal into current to drive the water pump motor, realizing the motor's start, stop, and speed control, while also providing necessary circuit protection functions. The solenoid valve drive circuit provides stable current and voltage to the solenoid valve. To control the opening and closing of the valve core and ensure the accuracy and reliability of fluid flow, this application includes a mains voltage detection circuit, a zero-crossing detection circuit, a gas pressure detection circuit, a heating detection circuit, and an NTC detection circuit. All of these detection circuits are electrically connected to the signal acquisition terminal of the main control chip to collect mains voltage signals, AC zero-crossing signals, gas pressure signals, heating operation signals, and temperature signals during equipment operation in real time, and transmit the collected detection signals to the main control chip. This application also includes a switching power supply circuit, which provides a stable power supply for all detection circuits and the main control chip, ensuring the normal operation of each circuit module. The main control chip receives the signals collected by each detection circuit, processes them, and outputs corresponding control signals. The signal output terminal of the main control chip is electrically connected to the heating circuit, the water pump drive circuit, and the solenoid valve drive circuit, respectively. By outputting control signals, it controls the start / stop, power adjustment, and working state switching of the heating, water pump, and solenoid valve, respectively, to achieve overall intelligent control of the equipment.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power board circuit for a sealing machine, comprising a power board circuit, characterized in that: The power board circuit includes an AC voltage detection circuit, a heating detection circuit, a gas pressure detection circuit, a switching power supply circuit, a zero-crossing detection circuit, a heating circuit, an NTC detection circuit, a water pump drive circuit, and a solenoid valve drive circuit. The mains voltage detection circuit, zero-crossing detection circuit, air pressure detection circuit, heating detection circuit, and NTC detection circuit are all electrically connected to the main control chip signal acquisition terminal; the switching power supply circuit supplies power to all detection circuits and the main control chip; the main control chip outputs control signals that are respectively connected to the heating circuit, water pump drive circuit, and solenoid valve drive circuit.

2. The power board circuit for a sealing machine according to claim 1, characterized in that: The zero-crossing detection circuit includes resistors R9 and R10. One end of resistor R9 is connected to one end of resistor R10, and the other end of resistor R9 is connected to ACN-1. One end of resistor R10 is connected to ZERO.

3. The power board circuit for a sealing machine according to claim 1, characterized in that: The heating circuit includes a resistor R16, a transistor TR1, a fuse FUSE-HEAT, a fuse FUSE-HEAT2, and a fuse HEAT-L. One pin of the transistor TR1 is connected to ACL, one pin of the transistor TR1 is connected to one end of the fuse FUSE-HEAT, one pin of the transistor TR1 is connected to one end of the resistor R16, and the other end of the resistor R16 is connected to HEAT. One end of the fuse FUSE-HEAT2 and one end of the fuse HEAT-L are both connected to HEAT-L.

4. The power board circuit for a sealing machine according to claim 1, characterized in that: The NTC detection circuit includes resistor R18, resistor R17, capacitor C4, and temperature coefficient thermistor NTC. One pin of the temperature coefficient thermistor NTC is connected to one end of resistor R17, one end of capacitor C4, and one end of resistor R18. The other ends of resistor R17 and capacitor C4 are grounded. The other pin of the temperature coefficient thermistor NTC is connected to a +5V power supply.

5. The power board circuit for a sealing machine according to claim 1, characterized in that: The water pump drive circuit includes connector CN4, diode D6, transistor Q2, resistor R19, and resistor R20. Pin 1 of connector CN4 is connected to one end of diode D6 and pin D of transistor Q2. Pin G of transistor Q2 is connected to one end of resistor R19 and one end of resistor R20. Pin S of transistor Q2 and the other end of resistor R19 are both grounded. Pin 1 of connector CN4 and the other end of diode D6 are both connected to a +12V power supply.

6. The power board circuit for a sealing machine according to claim 1, characterized in that: The solenoid valve drive circuit includes connector CN3, diode D7, transistor Q3, resistor R29, and resistor R28. Pin 1 of connector CN3 is connected to one end of diode D7 and pin D of transistor Q3. Pin G of transistor Q3 is connected to one end of resistor R29 and one end of resistor R28. Pin S of transistor Q3 and the other end of resistor R29 are both grounded. Pin 2 of connector CN3 and the other end of diode D7 are both connected to a +12V power supply.

7. The power board circuit for a sealing machine according to claim 1, characterized in that: The mains voltage detection circuit includes resistors R26, R11, R12, and R13, and a surface-mount capacitor EC5. One end of resistor R26 is connected to one end of resistor R11, the other end of resistor R11 is connected to one end of resistor R12, the other end of resistor R12 is connected to one end of resistor R13 and one end of surface-mount capacitor EC5, and the other ends of resistor R13 and surface-mount capacitor EC5 are both grounded.

8. The power board circuit for a sealing machine according to claim 1, characterized in that: The heating detection circuit includes resistors R21, R22, and R23. One end of resistor R21 is connected to one end of resistor R22, and the other end of resistor R22 is connected to one end of resistor R23 and HEAT ZERO respectively. The other end of resistor R23 is grounded.

9. A power board circuit for a sealing machine according to claim 1, characterized in that: The air pressure detection circuit includes a connector CN5 and a resistor R27. One pin of the connector CN5 is connected to one end of the resistor R27, and the other pin of the connector CN5 is grounded.

10. A power board circuit for a sealing machine according to claim 1, characterized in that: The switching power supply circuit includes resistors R1 and R2, diodes D1 and D2, inductor L1, surface mount capacitors EC1 and EC2, resistors R3 and R4, capacitor C1, control chip IC1, resistors R5, R6, and R7, capacitors C1 and C8, surface mount capacitor EC3, diodes D3, D4, and D5, inductor L2, and transistor Q1. Pin 2 of control chip IC1 is connected to one end of capacitor C1. Pin 4 of control chip IC1 is connected to one end of resistors R3 and R4, respectively. Pin 5 of control chip IC1 is connected to one end of resistors R5, R6, and R7, respectively. The other end of resistor R5 is connected to one end of diode D3. The other end of resistor R6 is connected to one end of inductor L2. The other end of resistor R7 is connected to one end of diode D4. One end is connected: pin 6 of the control chip IC1 is connected to pin G of the transistor; pin S of the transistor Q1 is connected to the end opposite to resistor R7; the other end of the inductor L2 is connected to one end of the surface-mount capacitor E3 and one end of resistor R8; the two ends of capacitor CX1 are connected to one end of resistor R1, one end of diode D1, and one end of resistor R2; the other end of resistor R1 is connected to the other end of resistor R2; the other end of diode D1 is connected to one end of diode D2; the other end of diode D2 is connected to one end of inductor L1 and one end of surface-mount capacitor EC1; the other end of inductor L1 is connected to one end of surface-mount capacitor EC2; and the other ends of diode D3, surface-mount capacitor EC1, surface-mount capacitor EC2, diode D4, surface-mount capacitor EC3, and resistor R8 are all grounded.

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