Synchronous belt: Use the inverter to adjust the speed of the conveyor to match the speed suitable for each production capacity. The sleeve labeling machine uses synchronous control to make the three parts of the bottle screw group, the belt group and the conveyor belt into a single knob to adjust the speed. Timing belts can be divided into neoprene and fiber rope timing belts, polyurethane and steel wire timing belts according to the material. They are mainly divided into trapezoidal teeth and arc teeth according to the shape of the teeth. According to the arrangement of the teeth, they can be divided into Single-sided toothed belt and double-sided toothed belt. Synchronous belt drive has precise transmission ratio, no slip, can obtain constant speed ratio, precise transmission, stable transmission, shock absorption, low noise, wide transmission speed ratio range, generally up to 1:10, and allow line speed to reach 50m / s, transmission efficiency is high, generally reaching 98℅-99℅. Transfer power from a few watts to hundreds of kilowatts. Compact structure is also suitable for multi-shaft transmission, low tension, no lubrication, no pollution.