Real application of time relay of blister packaging machine

The core IC of the delay circuit is composed of a 14-bit binary serial counter/frequency divider. The IC is composed of an oscillator and a 14-stage frequency divider. The oscillator part can be composed of a resistor Rt and a capacitor Cr to generate a fixed oscillator. Oscillation frequency, the rectangular wave generated by the main vibration can enter the 14-stage frequency divider, and obtain different frequency division coefficients through 10 output terminals (the minimum frequency division can get 16 frequency division Q4, and the maximum frequency can get 16384 frequency division Q14). The desired timing control can be obtained. After the frequency division delay arrives, the high level of the output terminal makes the transistor of the drive circuit conduct, so as to execute the relay operation, and the corresponding delay contact performs timing control on the required peripheral circuits, and the IC oscillation also follows the output high voltage. Flatten the V6 to stop the vibration. The light-emitting tube V1 also works with the relay at the same time, which serves as a delayed arrival indication. The integrated public clearing terminal Cr (pin 12) generates instantaneous spikes on the differential circuit composed of C4 and R3 when the circuit is powered on, which resets and clears the output of the counter and stops the oscillation at the same time. After the power-on moment is over, the oscillator starts to oscillate, and the circuit enters the frequency division delay working state.