Mechanical cam-type weft cutter: The cam mechanism drives the movable blade and the fixed blade to open and close, cutting the weft yarn at a fixed time; it is necessary to adjust the cutting time and stroke to avoid incomplete cutting or rebound.

Electronic scissors (high-end model): Driven by an independent servo motor, the scissors feature round or straight-edged blades. A microchip controls the cutting timing and path of each weft thread, supporting patterned presets to enhance precision and reduce weft stoppage rates.

Electronic disc-type scissors: The motor drives the rotating disc blade to continuously scan and cut through the yarn path. The structure is simple and requires no debugging, making it suitable for rapid switching between multiple varieties.