Synchronous variable-pitch transferring equipment and method for bottle blanks

The invention provides synchronous variable-pitch transferring equipment and method for bottle blanks. The synchronous variable-pitch transferring equipment for the bottle blanks comprises a variable-pitch transferring mechanism, a plurality of groups of clamping mechanisms which are driven by the variable-pitch transferring mechanism to carry out variable-pitch operation and transferring, and an opening and closing driving mechanism which drives the clamping mechanisms to synchronously clamp or release the bottle blanks, wherein each clamping mechanism comprises a clamp unit. By arranging the opening and closing driving mechanism formed by serially connecting a single shaft body with multiple hinge units, the clamp units are rotationally connected in series from the bottoms of the clamp units, and the tops of the clamp units can be driven to be opened and closed synchronously through short lifting actions, so that structural simplification and improvement are greatly realized, and meanwhile, the opening and