Tire production method and apparatus

A tire production apparatus, comprising:

• a main shaft;
• a turn-up rod assembly, which is configured for processing a side of a tire;
• a shim plate assembly, the shim plate assembly is sleeved on the main shaft, and expands and retracts along a radial direction of the main shaft;
• a lock block assembly, the lock block assembly is sleeved on the main shaft, and expands and retracts along the radial direction of the main shaft;
• a middle drum assembly, the middle drum assembly is sleeved on the main shaft, and expands and retracts along the radial direction of the main shaft, there are a plurality of the shim plate assemblies, the lock block assemblies and the turn-up rod assemblies, and the lock block assembly, the shim plate assembly and the turn-up rod assembly are arranged in sequence along a direction away from the middle drum assembly on both sides of the middle drum assembly;
• wherein the shim plate assembly comprises:
• an expansion actuator arranged along an axial direction of the main shaft;
• a shim plate block, the shim plate block abuts against an output end of the expansion actuator, and the shim plate block-expands and retracts along the radial direction of the main shaft under a drive of the expansion actuator;
• wherein the output end of the expansion actuator is provided with a first slope, an inner side of the shim plate block is provided with a second slope, the first slope and the second slope abut against and are pressed against each other, and the expansion actuator presses the second slope by the first slope to drive the shim plate block to expand and retract.