The weighing system can accurately control the amount of various materials in and out, and complete the data state acquisition and output control of the relevant analog quantity and switching quantity of the field equipment. The touch screen is used together with the metering tank PLC, which makes the application of the liquid dispensing tank PLC more flexible. The touch screen can set parameters, display data, depict the production process in the form of animation, so that the application of PLC can be visualized.
020-34563445Mixing system is the ideal batching equipment for continuous weighing and feeding of bulk materials. It is used for continuous conveying, static metering and automatic batching of powder and granular materials. The materials are received, measured and transported by motor driven by fully enclosed conveyor or rail trolley. According to the formula requirements, a variety of materials are measured and batching under multiple silos, and the materials are automatically discharged to each discharge port, which can realize the automatic receiving of materials.
The feeding system through the fieldbus combined with PLC simulation acquisition and control, all the key control data on the site, the suspension of the feeding target value, the speed value of the screw Feeder or vibration feeder, the expected automatic control of the time range value to achieve PLC automatic adjustment of the feed speed, in the specified time to complete the accurate feeding task. It can be extended to the precise distribution of mixer discharge and broken plastic discharge, so as to realize the system's prediction of faults and automatic correction of errors, and realize the intelligence of the whole process.
The operation process of the Batching system is that the raw material formula data is transmitted from the upper computer to the lower computer PLC, and then controlled by PLC. When batching, all kinds of raw materials are distributed to the corresponding batching storage through the top conveying equipment and the distributor, the raw materials are successively sent into the hopper scale by the feeder, and the proportion of large (>20%) raw materials are sent into the large hopper scale; A small proportion (5%~20%) of the raw materials are sent to the small hopper scale to weigh, weighing module detects the quantity of each material, and transmits the signal to the weighing controller to control the feed of the feeder, so as to control all the materials in the bin according to the set formula requirements to weigh and mix, to achieve the specified cumulative mass (the amount of each batch of materials) when the quantity of each material. PLC opens the material door according to the control program and puts the material in the hopper scale into the mixing chamber of the feeder for mixing.
