| 摘要 |
An apparatus (10) for conveying and selectively discharging products at a plurality of specific unloading areas comprises a frame (22), defining a first end and a second end opposite the first end, a weight or size determination unit (14) mounted at a first end, at least two sprocket wheels (20, 21) mounted in the frame at the first and the second end, respectively, a motor (26) connected to at least one of the sprocket wheels for causing that at least one sprocket wheel to rotate, and a first plurality of conveyor belt elements (28) each defining a third end and a fourth end opposite the third end, a first aperture parallel with the third end and adapted for engaging an articulation shaft (30, 38). The conveyor belt element comprises a magnetic, ferromagnetic or magnetizable area at the fourth end and is operable between a substantially horizontal position and a substantially vertical position. The apparatus further comprises means for generating a first magnetic field for maintaining the conveyor belt elements in the substantially horizontal position, means for locally counteracting the first magnetic field and/or nullifying the first magnetic field, and a central processing unit or CPU comprising a list defining the grades controlling the apparatus. |
