Parcel conveyor with control point at the end - allowing parcels forward onto second conveyor only when it is clear

摘要

The conveyor system consists of a roller conveyor (1) which passes over an additional conveyor (5). Each parcel is fed onto the conveyor until it arrives at the control point (8). The parcels are transferred to a second conveyor (9) which also has a control point (11). The control system stops the parcels of the first conveyor if the second conveyor has a parcel on it. The parcel is allowed forward when the second conveyor is clear.