一种对香烟输送机进行回转数和电流进行检测电路
By designing a detection circuit to monitor the rotational speed and current of the cigarette conveyor motor in real time, the problem of unstable rotational speed caused by power grid voltage fluctuations is solved, ensuring the stable operation of the cigarette conveyor and the packaging quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN CHENGYUE AUTO PARTS MFG CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
The existing cigarette conveyor is subject to voltage fluctuations in the factory's power grid. The unstable rotation speed affects the conveyor belt speed and current changes, resulting in uneven spacing and irregular arrangement of cigarettes, which seriously affects the packaging quality.
Design a detection circuit including a control unit, a detection unit, and a display unit. Through a main control module, a voltage regulation module, a speed detection module, and a current detection module, the circuit can detect the motor rotation speed and output current in real time, and display the current motor information through the display unit.
It enables stable detection of the motor speed and current of cigarette conveyors under different voltages, ensuring stable operation of the production line and packaging quality.
Smart Images
Figure CN224511684U_ABST
Abstract
Claims
1. A circuit for detecting the rotational speed and current of a cigarette conveyor, characterized in that: The system includes a control unit, a detection unit, and a display unit. The control unit includes a main control module, a power supply module, and an operation module. The detection unit includes a voltage regulation module, a speed detection module, and a current detection module. The operation module is connected to the main control module. The power supply module is connected to the main control module, the voltage regulation module, and the display unit. The main control module is connected to the voltage regulation module and the display unit. The speed detection module and the current detection module are both connected to the main control module. The main control module controls the voltage regulation module to output different voltages according to the input signal of the operation module. The main control module receives the motor rotation speed information measured by the speed detection module and the motor output current measured by the current detection module, and displays the current motor input voltage, rotation speed and output current in real time through the display unit.
2. The cigarette conveyor rotation number and current detection circuit according to claim 1, characterized in that: The voltage regulation module includes an operational amplifier U1. The non-inverting terminal of the operational amplifier U1 is connected to the negative terminal of diode D1; The negative terminal of the operational amplifier U1 is connected to the positive terminal of the diode D1, and resistors R3 and R4 are connected in parallel to the load terminal. Resistor R3 is connected to the VCC terminal, and resistor R4 is grounded. The positive terminal of the operational amplifier U1 is connected to the PWM output terminal of the main control module.
3. The cigarette conveyor rotation number and current detection circuit according to claim 2, characterized in that: The voltage regulation module also includes resistors R1 and R2 and capacitors C1 and C2. The PWM output terminal of the main control module is connected to the resistor R1, the resistor R1 is connected to the resistor R2 and then to the capacitor C1, the resistor R2 is connected to the positive terminal of the operational amplifier U1 and then to the capacitor C2, and the capacitor C2 is connected to the other end of the capacitor C1 and grounded.
4. The cigarette conveyor rotation number and current detection circuit according to claim 1, characterized by: The speed detection module includes a chip U3, a Hall sensor H1, and a magnetic block disposed on the outer edge of the motor output shaft. The VCC pin of chip U3 is connected to capacitor C5 and then to the VCC terminal, and capacitor C5 is grounded. The OUTA pin of the chip U3 is connected to the DO terminal; The INA pin of the chip U3 is connected to the IN terminal; The INA+ terminal of the chip U3 is connected to capacitor C6 and resistor R5 and then connected to the Out pin of the Hall sensor H1. The capacitor C6 is grounded and the resistor R5 is connected to the VCC terminal.
5. The cigarette conveyor rotation number and current detection circuit according to claim 1, characterized in that: The current detection module includes a terminal PH1 electrically connected to the load terminal, a chip U4, and a MOSFET Q1. The IN+ terminal of the chip U4 is connected to resistor R18 and then to pin 2 of the MOS transistor Q1. Resistor R18 is grounded. The IN- terminal of the chip U4 is connected to resistor R16 and resistor R13 in parallel, and resistor R16 is grounded; The OUT terminal of the chip U4 is connected to the other end of the resistor R13 and then to the V_out terminal; The VDD pin of chip U4 is connected to the VCC pin; Pin 1 of the MOSFET Q1 is connected to the CTRL terminal, and pin 3 is connected to pin 2 of terminal PH1. Pin 1 of terminal PH1 is connected to the VCC terminal.