According to the semi-automatic feeding
station, a
ton bag is conveyed to the position above the unpacking device through the material flowing opening above the dustproof device, the clamping device is started, the bag opening of the
ton bag is clamped, then the bag opening at the sealing line position is
cut off through the operation opening in the side face of the dustproof device, the unpacking
barrel is sleeved with the bag opening of the
ton bag manually, and then the bag opening of the ton bag is
cut off. The pressing plate is driven by the lifting mechanism to descend until the pressing plate and the unpacking
barrel tightly press the opening of the ton bag, then the bag clamping device is loosened,
powder in the ton bag is released, and the
powder is discharged out of the semi-automatic feeding
station through the pressing plate and the discharging channel in the unpacking
barrel. The
control system controls the lifting mechanism to ascend and descend, so that the ton bag is arranged on the unpacking barrel in a sleeving mode through the discharging channel of the pressing plate, the bag clamping device is controlled to clamp the bag opening of the ton bag, the flow-aiding
flapping device is controlled to flap the ton bag, material residues are reduced, the dustproof device prevents dust from overflowing, and the unpacking efficiency is improved. Therefore, the accuracy and the safety of the feeding process can be effectively ensured.