Abstract
The empress car is a important equipment that transports the material in produce. The traditional control method mostly adopts the half artificial manipulate to control. However in many production situations, the weakness and a lot of shortage that automatic control in this kind of half method appeared already. In order to improve work efficiency, promote the production automation and alleviate to the labor strength, now there need realizes the car that automatic control.
This design is reforms the manipulate a line of the car moved by artificial the half automation electricity to the automation control system that be controlled by PLC, can not only increase production efficiency, conveniently realizes every kind of control function, but also can adapt to the bad environment of a line of cars, not need adopt the excessive measure on the hardware.
The appropriation car for electroplate in this design is a rise and fall to passes a line of the car arouses to the mourn hook to exercise and the mourn hook in front and back to realize the electroplate process. A car bring the hook go forward/retreat pass by the electroplated slot, recovery liquid slot, clear water slot one by one , when above each slot, the limit switch tells PLC to sends out the control instruction makes the hook descends, when in the slot it starts settling the time to electroplate. While settling after ending, the mourn hook is rising up, still need to stop a few minutes let superfluous liquid flowed to return to slot then can to the next slot, When liquid ends from the clear water slot the empress car returns the home position.
In the design of this system, Completed the design of hardware and software . The hardware includes the PLC outer connect line, main electric circuit and control electric circuits, the software includes trapezoid diagram and instruction forms.
Key words: PLC; a appropriation car for electroplate; Exercise in front and back; Exercise in ascend and descend
