Charging tray detection device

The utility model relates to a charging tray detection device. The charging tray detection device comprises a support which is arranged on the outer wall of a high-temperature furnace and is oppositeto a charging tray moving along the initial direction; the detection piece is mounted on the support in a position-adjustable manner and partially extends into the high-temperature furnace; and the sensing piece is mounted on the support and arranged corresponding to the detection piece, the tray moves to the corner along the initial direction to push the extending part of the detection piece, sothat the detection piece moves out of the high-temperature furnace, and the sensing piece detects the position change of the detection piece to determine that the tray reaches the corner. The materialtray detection device effectively solves the problem that whether the material tray passes through the corner of the high-temperature furnace or not cannot be detected, whether the material tray passes through the corner of th