Batching system realizes intelligent and networked management of small material batching, so that finished products and raw materials can be traced in both directions, production decision-making and production control are seamlessly connected, production execution is improved, and real-time and accurate production data are used as the basis for managers' decision-making, so as to prevent the occurrence of quality accidents. Help customers to solve the dosage error prevention, improve dosage precision, quality traceability products, intuitive image, over the limit of the sound and light alarm prompts the application of bar code to effectively prevent the occurrence of the wrong raw materials raw material lot number bar code and finished product lot number bar code fixed in the bar code block can be reused.

Dosing system is a kind of production equipment used for industrial processing of different powder or liquid materials according to a certain proportion of automatic and accurate proportioning, usually composed of weighing system, weighing control instrument, PLC system and upper computer. Including the storage body of raw materials, transportation body, weighing and batching body, dust removal body, material mixing body and other equipment. Batching mode can be reasonably selected according to the industry characteristics, production process requirements, specific material characteristics, "incremental" or "decremental" weighing mode, with a single hopper single material, single hopper multi-material, multi-bucket multi-material and other modes of operation.

According to its specific production process and process equipment, the reactor weighing can achieve stable product quality through automatic monitoring and control of production parameters such as temperature, pressure, flow rate and batching accuracy. After particle size, moisture, viscosity and other quality testing, in a specific temperature, sealed and other environment storage and transportation. The use of computer for online monitoring and management has higher requirements for weighing speed, weighing accuracy, system compatibility and scalability.

The weighing of the reaction tank is transmitted from the industrial computer in the control center to the electronic scale and PLC controller through the communication line, and the weight of each link is collected and displayed, and the fast feeding and slow feeding strategies are adopted in different weight stages to improve the efficiency and the measurement accuracy of the electronic scale. When the ingredients reach the target value, the output stop measurement signal, and the related valves and pumps are closed by PLC control. At the same time, the action of unloading the reactor is completed, and the measuring instrument is automatically zeroed and peeled.

Weighing the reaction pot by several raw material conveyor screw to the raw material in the order of the set to the metering scale, each raw material according to the automatic control system set the weight of the conveyor in turn, after the weight of the raw material is measured, and then by the metering scale of the discharge spiral to all the raw materials to the downstream equipment (cache bin, or direct pipeline connection), while starting the vacuum conveyor or valve. The raw material is sent to the waiting bin located above the main engine, where the weight of the raw material is completed.

The mixing and weighing system adopts Siemens PLC, circuit breakers, relays, inverters and terminals, which can complete the equipment automation and process automation control. At the same time, the configuration control means to collect the data and adopt the high-end configuration software as the upper computer, through which commands are issued to manage the automation equipment and process. Standard industrial computer software and hardware platform as an integrated carrier to replace the traditional system, with strong adaptability, openness and good characteristics.

The weighing system provides man-machine interactive interface, and completes the functions of controlling information input, data management, data display, storage, statistics and reporting, etc. The industrial computer inputs the weight of ingredients through the host keyboard, generates the weight of various materials according to the proportion of raw materials, and transmits them to PLC through communication. In the process of batching, dynamic real-time monitoring is carried out, and other switching values in the detection and control system sent by each slave machine are collected regularly, and the weight signals of each material are collected in real time and compared with the given signals to determine the next control scheme, and at the same time, the weight signals are transmitted to the upper computer.

The weighing system starts the industrial computer to send a feeding signal to the PLC, the PLC controls the frequency converter for fast feeding, the weighing sensor sends the weight signal through the transmitter to the PLC, the PLC converts the analog signal into a digital signal, the signal is normalized and quickly added to a certain amount, the PLC controls the frequency converter for slow adding, when the advance amount is reached, the feeding is stopped.

The process of weighing system is mainly the batching metering and feeding process. In batching metering process, firstly, the time of discharging from the material feeder to the metering tank is controlled according to the weighing requirements, so as to control the amount of material entering the metering bin, and then the time of discharging from the feeder to the metering tank is controlled according to the material proportioning requirements, so as to control the weight entering the metering tank, thus completing the weighing process once until the specified weighing times for each batching are completed.