Automatic batching system via load cell. The combination of the control system can realize the weighing and measurement of the tank, so that the control system, the user can directly access the PLC to achieve multi-pass control and automatic control system, terminal control system. Support the ratio weighing of a variety of materials such as powder, granular, block, sheet and liquid, and choose a variety of metering methods such as single ingredient, multi-ingredient sequential accumulation, weight reduction, weight loss, etc.
020-34563445This Weighing system is a comprehensive automatic batching control system which integrates the computer production process control and data management such as weighing and feeding, formula control and discharging, and uses Mitsubishi Q series PLC and Advantech industrial microcomputer to build a high-performance control platform. For the design of an automation system for production control, it is essential to achieve stable and reliable operation, simple and practical operation, and superior cost performance. The system consists of five parts:
1, control part: the upper computer adopts Advantech P4 industrial control microcomputer, Mitsubishi Q series PLC communication module and switching input and output module, as well as manual - automatic control switch, manual control button and indicator light are installed in the integrated control cabinet, easy to operate.
2. Software part: customized according to the basic requirements of the weighing system and the actual needs of users.
3, weighing part: using high-precision weighing module, combined with weighing control instrument production.
4, the execution part: using pneumatic valve control, screw frequency conversion for feeding, discharging control.
5, feeding part: screw feeding is responsible for feeding.
Action flow
1, the weighing bin is equipped with a weighing sensor, and connected to the industrial computer by rs232. The system is designed to manually check the zero of each weighing bin when it is shut down, which can monitor whether the zero position of the weighing bin is normal. Automatic zero check during continuous batching operation can correct the zero position change of weighing bin and ensure the measurement accuracy.
2. After the operator clicks the battering operation process, the PLC controls the pneumatic valve and screw of the first kind of raw material feeding, and the raw material is slowly added to the weighing bin. The computer monitors the signal transmitted by the weighing sensor under the weighing bin in real time, and compares it with the target value set by the formula. * The pneumatic valve and screw of raw material feeding are closed, and the total weight of the weighing bin and the added raw material is measured after stability, and this value is used as the zero position before the second raw material feeding.
3, then start the feeding process of the second raw material, so repeated to the second, third,... Until the sixth raw material is fed.
4, the feeding process ends and meets all the pre-set feeding conditions, and the feeding process begins. Discharge pneumatic valve, the mixture under the action of gravity natural outflow. The system monitors the signal transmitted by the measuring sensor under the weighing bin in real time. When the total weight of the weighing bin is detected to return to the initial zero, the discharge valve is closed and the discharge process ends.
5. The operator can set the order of opening each feed in advance.
6, the system can record the tank number in operation, the actual feeding amount of each raw material, the deviation from the formula set target value, the feeding start and stop time and the feeding time, as well as the feeding start and stop time and the feeding time and other operating data.
7, through the upper computer application program, you can query and print the original data and statistical reports of the system operation.
