| 摘要 |
A synchronous yarn feeding device comprising a yarn feeding drum (10) and a driving belt (20). The drum (10) is provided with protrusions or studs (13) that are arranged for cooperative engagement with concave surfaces or holes (21) in the driving belt (20). A portion (22) of the driving belt (20) presses yarn (30) onto the drum (10) such that rotation of the drum (10) and feeding of the yarn are synchronous with the speed of the driving belt (20). |
