A
liquid injection device for a soft-pack battery comprise a battery feeding mechanism, a conversion mechanism in battery, a battery transport mechanism, a battery scanning mechanism, a weighing mechanism before
liquid injection, a battery
liquid injection mechanism, a weighing mechanism aft liquid injection, and a discharging and loading mechanism, wherein that liquid
injection device comprises abattery feeding mechanism, a battery transferring mechanism, a battery scanning mechanism, a weighing mechanism before liquid injection, a battery liquid injection mechanism, and a discharging and loading mechanism. A load mechanism of that battery is connected with a switching mechanism in the battery, a switching mechanism in the battery is connected with a battery scanning mechanism, and a battery scanning mechanism, a weighing mechanism before liquid injection, a battery liquid injection mechanism, a weighing mechanism aft liquid injection and a feeding and loading mechanism are respectively connected with a battery transporting mechanism. The soft-pack battery
injection device of the invention is provided with a battery feeding mechanism, the switching mechanism, a battery
transfer mechanism, a battery scanning mechanism, the weighing mechanism before liquid injection, a battery liquid injection mechanism, a weighing mechanism aft liquid injection, and a discharging and loading mechanism in that battery, so that the liquid injection
processing operation of the soft-pack battery can be completed, the mechanical
automation level of the liquid injection
processing is high, and the production efficiency and the
production quality of the liquid injection
processing can be effectively improved.