The invention relates to the technical field of packaging equipment, in particular to an automatic packaging and sealing
system and method for flexible freight bags, and the method comprises the steps: S1, building an external environment
airflow interference reference and a
dynamic mapping library; s2, performing
latitude decoupling in a coarse feeding stage, and outputting a coarse
net weight; s3, performing peak shifting
phase locking cross sampling in a fine feeding stage, monitoring an internal air exhaust blocking instruction, opening a
microsecond-level absolute resting measurement window, and eliminating dual fluid interference in combination with a
dynamic mapping library to obtain absolute real weight; and S4, performing deep degassing, resting reexamination and sealing after rigid truncation. The
system comprises a weighing mechanism, a flow field sensing unit, an internal fluid intervention unit and a main control center with a hardware interruption mechanism. The invention solves or at least relieves the problems of weighing
distortion and sealing failure caused by fluid interference in light
powder packaging, and provides an automatic packaging and sealing
system and method for a flexible freight bag.