Automatic stacking equipment for metal buckets without stopping for stack-changing

The invention relates to an automatic stacking equipment for metal buckets without stopping for stack-changing, which is characterized in that a first group of bucket clamping block assemblies are arranged above a bucket supporting plate, a second group of bucket clamping block assemblies are also arranged above the bucket supporting plate, and the vertical position of the second group of bucket clamping block assemblies is lower than that of the first group of bucket clamping block assemblies; a horizontal longitudinal guide rail is also fixedly arranged, a sliding support is arranged on thehorizontal longitudinal guide rail, and the first group of bucket clamping block assemblies are arranged on the sliding support; a longitudinal driving mechanism for driving the sliding support to longitudinally move back and forth along the horizontal longitudinal guide rail is also arranged; when the first group of bucket clamping block assemblies and the sliding support are driven down to the rear end of the longitudin