The invention discloses a rotary table synchronous belt type
servo motor driving mechanism and a vertical
injection molding machine, the rotary table synchronous belt type
servo motor driving mechanism comprises a mold locking unit and a rotary table
assembly which are integrally arranged, the mold locking unit comprises a mold plate
assembly and a mold
locking mechanism, the mold plate
assembly is internally provided with a center mold locking
machine column coaxial with the center of a rotary table, and the mold
locking mechanism is arranged on the rotary table assembly. The
rotating disc assembly comprises a
rotating disc and an adjustable
rotating disc synchronous belt type
servo motor driving mechanism for driving the rotating disc to rotate around the central mold locking
machine column; and the mold
locking mechanism comprises an adjustable mold closing synchronous belt type servo motor driving mechanism and a mold closing screw rod transmission mechanism. A synchronous belt type servo motor is adopted for driving, a lead screw transmission mechanism is matched to achieve cylinder-free driving, oil leakage
pollution risks are avoided, high-precision positioning and accurate transmission without sliding can be achieved, a synchronous belt is in flexible transmission, the service life is long, different belt wheels and different synchronous belts can be replaced according to needs, and different rotating speed and torque requirements can be met. Performance of the
injection molding machine is improved, production efficiency is high, and stability is good.