Automatic control system of paraffin wax continuous forming machine

The invention discloses an automatic control system of a paraffin wax continuous forming machine. The system adopts a Siemens S7-300 series PLC (Programmable Logic Controller) to form a medium-sized distributed PROFIBUS control network; the whole control system is divided into a control layer and an equipment layer; wherein the control layer comprises a main PLC control cabinet, an operating platform, a power cabinet and a tension detecting box, wherein the main PLC control cabinet is connected with the operating platform, the power cabinet and the tension detecting box through a network; and the equipment layer comprises an electric motor, an adjusting valve, a magnet valve and other actuating mechanisms as well as a temperature sensor, a pressure sensor, a liquid level sensor, a flow sensor, an encoder and other sensors. The automatic control system has the advantages that the structural layout is reasonable, the automatic control level is high, the paraffin wax injection accuracy is high, the rate of finis