Weighing device and weighing method for sieve tray of sieve shaker

The invention relates to the technical field of vibration screening machines, in particular to a vibration screening machine sieve tray weighing device and method.The weighing device comprises a base and a vibration screening machine, the vibration screening machine is provided with a plurality of stacked sieve trays, the base is provided with a plurality of rotating stand columns surrounding the vibration screening machine, and weighing frames allowing the vibration screening machine to penetrate through are arranged between the rotating stand columns; the rotating stand column can rotate around the axis of the rotating stand column so that the weighing frame body can move up and down along the rotating stand column. The weighing frame body is provided with a weighing cantilever surrounding the sieve tray, and the weighing cantilever can weigh the sieve tray by taking the sieve tray. According to the device, all the sieve trays above are sequentially taken from top to bottom, and the weight of each layer of