A feeding and discharging device (1) and a method of feeding and discharging with said feeding and discharging device (1), which hermetically convey the upstream object (3) from the upstream space (6) to the downstream space (7) which is separated from the upstream space (6), a loaded transition space (8) is formed after a sequence of the operations of opening the upstream opening (4), moving the upstream object (3) out of the upstream space (6) through the upstream opening (4), closing the upstream opening (4), an unloaded transition space (9) is formed after a sequence of the operations of opening the downstream opening (4), moving the upstream object (3) into the downstream space (7) through the downstream opening (4), closing the downstream opening (4), the scheme improves the air tightness of the feeding and discharging process, increases the flow of feeding and discharging, prolongs the service life of the device.

A feeding and discharging device (1) and a method of feeding and discharging with said feeding and discharging device (1), which hermetically convey the upstream object (3) from the upstream space (6) to the downstream space (7) which is separated from the upstream space (6), a loaded transition space (8) is formed after a sequence of the operations of opening the upstream opening (4), moving the upstream object (3) out of the upstream space (6) through the upstream opening (4), closing the upstream opening (4), an unloaded transition space (9) is formed after a sequence of the operations of opening the downstream opening (4), moving the upstream object (3) into the downstream space (7) through the downstream opening (4), closing the downstream opening (4), the scheme improves the air tightness of the feeding and discharging process, increases the flow of feeding and discharging, prolongs the service life of the device.