In addition to completing the required control tasks through communication with each slave machine, the automatic mixing and batching system should also have functions such as real-time display of working conditions, formula optimization, and management consultation. The data exchange between the main unit and each slave machine and the real-time display module for the control of each slave machine are realized. The main unit issues cycle commands to each slave machine, enters the batching cycle process, and successively receives the working condition information sent by each slave machine. It conducts real-time dynamic display and sends control commands to each slave machine according to the corresponding control scheme.
020-34563445The automatic mixing and Batching system based on PC and precise quantitative batching is a technical equipment integrating mechanics, electricity, signal processing and batching. The electrical part mainly consists of Weighing modules, weighing instruments, programmable logic controllers (PLC), frequency converters, industrial control computers and printers. During the dynamic weighing process, the weight signal from the weighing module on the quantitative weighing hopper is received. When the weight of the material in the hopper reaches each set value, an I/O quantitative signal is output to the PLC. The PLC collects the quantitative output signals of the weighing instrument and controls the output frequency of each frequency converter through the PLC, thereby controlling the coarse and fine feeding amounts of the corresponding vibrating Feeders and the opening and closing actions of the material doors of each weighing hopper. The industrial control computer communicates with the weighing instrument via the RS232 interface and displays the weighing data of each scale on the monitoring screen. Users can adjust the formula on the weighing instrument panel or the operation interface of the industrial control computer.
The automatic batching system adopts computer self-control and network technology. The reaction pot controls and manages the entire production process from drying, screening, conveying, metering, unloading, stirring, discharging to packaging of materials. The reaction pot improves the operational efficiency and quality of production. The industrial control computer weighing manager is adopted as the core control device. The relay or contactor of the corresponding equipment is controlled by the output port of the programmable controller, and various working conditions are received. The industrial control computer executes the program compiled according to the process requirements, collects the input situation of the weighing instrument in real time, and controls the action of the corresponding equipment.
The feeder is controlled by PLC for timing. The mixer is always stirring. During stirring, liquid is added quantitatively. The material bin must be discharged when the material door of the temporary storage hopper is closed (if the temporary storage hopper is equipped with a weighing scale) and the scale is empty. After the material and miscellaneous bin is closed in place, the temporary storage hopper begins to discharge materials. The external storage tank and the in-plant material silo start to feed materials to the screw after a delay. The amount of material fed is controlled by the opening degree of the material door. The start and stop are controlled according to the start and end of material discharge in the temporary storage hopper. All controls are implemented by the PLC for interlocking control, and the PLC controls the sequential start and stop.
