Upside down type damping clamping drum for receiving & feeding card machine

The utility model provides an inversion type card storage cylinder with a damping function. The lower part of the inversion type card storage cylinder with a damping function keeping proper pressure is ensured, which is convenient to for a card receiving and sending mechanism to work. The inversion type card storage cylinder with a damping function of a card receiving and sending machine of the utility model comprises a card storage cylinder with a card outlet on the bottom side. More than one damping block is arranged on the side wall of the card storage cylinder, wherein, the pressure of the damping block can be adjusted. Due to the fact that a card in the card storage cylinder is laterally pressed by the damping block with adjustable pressure which is arranged on the side wall of the card storage cylinder, the pressure of the card to the bottom is lightened, which is convenient for the operation that the card receiving and sending mechanism draws out or inserts into the card on the card outlet.