Monocrystalline silicon tray conveying, rising and falling device of multi-line cutting machine

The utility model relates to a monocrystalline silicon tray conveying, rising and falling device of a multi-line cutting machine. The device comprises a trolley which is seated on a rail, wherein cylinders which are arranged vertically and are connected with pneumatic devices are mounted on the trolley, supporting plates are connected to ends of piston rods matched with the cylinders, an electromagnetic tray is arranged above the supporting plates, a locating plate is arranged above the electromagnetic tray, and a supporting plate is arranged above the locating plate. During use, a silicon material to be cut can be conveyed conveniently by using the walking of the trolley, and meanwhile, the supporting plate for placing the silicon material is elevated or fallen by using the operation of the cylinders, so that the device is timesaving and laborsaving, the transfer rate of cut workpieces is high, and the work efficiency is increased.