The automatic batching system is a closed-loop system with microcomputer as the center and high-voltage equipment. The test object is the weight signal of the electronic scale, and the input signals and control objects of various switching values are electromechanical devices such as the feeder, the weighing hopper gate, the mixer gate and the grease addition switch valve. Different automatic batching systems can achieve different indexes, but their basic requirements are:
(1) batching accuracy: static accuracy ≤.1%, dynamic accuracy ≤.3%.
(2) A certain number of recipes can be stored, which is not affected by power failure.
(3) there is an accurate alarm signal.
(4) each production section has the function of chain protection, which can be used for continuous production.
(5) In production, it has power-off protection function and automatic error correction function.
(6) Receiving and sending signals have automatic detection function.
(7) It has the function of static precision calibration and testing.
(8) It has the function of automatic and manual switching.