Compared to two types of common pulling-yarn roller device, a special gear-like roller device used in carpet tufting machine to pull yarn is introduced.

与常规的挤压式、非挤压式罗拉纱线牵引装置作对比，介绍一种在地毯簇绒装备中使用的类齿轮特殊罗拉纱线牵引装置。

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The process requires aligning a bundle of staple fibers, pulling them out into a rope, known as a roving, and further pulling out and twisting the roving to form the yarn.

纺纱过程要求一束短纤维排成一线，将他们拉入一对罗拉中，例如粗纱，继续拉伸并加捻粗纱形成纱线。

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The spindle altitude is low , and yarn pulling force is little , the twisting of yarn being applicable.

锭子高度低，纱线张力小，适用于各种纱线的加捻。

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