Conveyor device and aligning device

A conveyor device conveying upward, from a water tank, first plates among the first plates and second plates accumulated in the water tank, the conveyor device comprising:

• a first rotating body disposed at a start end side of the conveyor device;
• a second rotating body disposed at a terminal end side of the conveyor device;
• an endless belt entrained between the first rotating body and the second rotating body;
• and
• a plurality of protrusions provided on a surface of the endless belt and engageable with the first plates and the second plates, wherein
• the conveyor device further comprises:
• a first portion including the first rotating body and located mainly in water of the water tank;
• and
• a second portion including the second rotating body and located mainly above the water of the water tank,
• in the first portion, the endless belt is configured to move upward at a first angle with respect to a water surface of the water tank,
• in the second portion, the endless belt is configured to move upward at a second angle larger than the first angle with respect to the water surface, and
• in the second portion, the second angle is set such that
• a virtual line extending vertically downward from a center of gravity of the first plate engaged with the protrusion intersects the surface of the endless belt within a region where the first plate is positioned, and
• a virtual line extending vertically downward from a center of gravity of the second plate engaged with the protrusion intersects the surface of the endless belt outside a region where the second plate is positioned.