The weighing frequency conversion Batching system is an electromechanical integrated system that integrates automatic control technology, measurement technology, weighing technology, and computer management technology. It has the advantages of weight value digital display, dynamic process screen display, formula modification and management, fast ingredient speed, and high control accuracy. Adopting a complete screen system of the upper computer, it has functions such as automatic storage of ingredient data, query of ingredient process list, statistics and printing of shift, daily, monthly, and annual reports. The automatic batching machine consists of a weighing module, weighing instruments, and communication cables. It adopts a combination of PID adjustment of measurement deviation and variable frequency speed regulation, and the hardware setting, parameter setting, and software design process in variable frequency control. Strictly coordinate and control the various ingredient conveying production lines with multiple outputs, and monitor and adjust the material level weight in a timely and accurate manner. By connecting on-site weighing instruments, controlling on-site equipment, weighing Feeder frequency converters, etc. through a bus, it has a high degree of intelligence and fast processing speed. In the process of ingredient production, the main and auxiliary materials are mixed in a certain proportion to complete the measurement of the transported materials. Mainly responsible for real-time control of the conveying and weighing processes, as well as completing fault detection, display, and alarm, while outputting signals to the frequency converter to adjust the screw speed. The feeding system mainly adopts SIMATIC S7-/300 series PLC, in which S7-/300 and the upper computer are used to achieve two-level control of the main and auxiliary batching machines. Each screw is driven by a motor; Two level sensors; A speed sensor; It consists of a weighing sensor and a frequency converter. The switch quantity controls the operation status of the motor, and the input of the frequency converter control terminal is determined by the digital input of the PLC. The high-frequency pulse is extracted by the frequency converter and transmitted to the screw drive motor. The level sensor starts to detect whether the hopper contains materials, and the speed of the motor is monitored by the speed sensor.

The weighing and batching machine adopts a mixing mechanism and a hopper scale. Multiple hopper scales are connected to the mixing mechanism for feeding materials to the mixing mechanism. The hopper scale is rotatably connected to a stopper door, which is equipped with a weighing module. The weighing module is equipped with a load-bearing plate, and a rotating mechanism is used to drive the stopper door to rotate, as well as a weighing instrument for collecting weight information and controlling the mechanism. The weighing instrument can use any device in the existing technology that can provide processing instructions to execute operations and process data. The operation of the rotating mechanism and the mixing mechanism is controlled by the weighing instrument, and the corresponding weight information collected by the weighing module is collected. When the material on the load-bearing plate reaches the corresponding weight threshold, the weighing instrument controls the rotating mechanism to drive the stopper door. Rotate, Put the material into the mixing mechanism through the hopper scale and mix the material. Using a rotating rod connected to the hopper scale and an electric motor for driving the rotating rod to rotate, a rod groove is provided on the material blocking door to cooperate with the rotating rod. The ingredient scale adopts a left turn lever and a right turn lever, both of which are equipped with key slots. The key slots are inserted with splines, and the side walls of the rod slots are equipped with card slots that match the splines. When using, first insert the left and right turn levers into the lever slots. When placing the stopper door in the corresponding position, pull out the left and right turn levers and install splines. Then insert them into the lever slots to match the splines and slots. Finally, connect the left and right turn levers to the hopper scale by rotating them.

Description of the main functions of the ingredient system

Implemented manual operation and automatic control functions for ingredients.

A beautiful and practical dynamic simulation of the production process can display the real-time working status, target weight, actual weight, and error value of each material.

Store preset formulas and enable them to be called, modified, deleted, and queried at any time.

There is an automatic alarm function for material shortage during the batching process, which allows manual replacement of tank and warehouse numbers with the same materials online.

It has the functions of operator permission management, on-site management, and networked remote service.

Using an industrial computer as the upper computer monitoring system, WINCC monitoring configuration ensures the stability, reliability, and long-term performance of the system.

The system adopts a human-machine dialogue mode, which is easy to operate and maintain.

Remote management can be achieved, and the computer in the control room can be connected to the computer in the general manager's office. The general manager can view production status and reports in real-time.

By using a frequency conversion reaction tank to control the feeding process, the accuracy of the ingredients can be improved, thereby enhancing product quality and stability.