Analysis of the dimensionless torque in cone drum false twisting mechanism |
| |
Authors: | Lee Choon Gil Kang Tae Jin |
| |
Institution: | (1) Department of Textile and Fashion Technology, College of Engineering, Kyungil University, 712-701 Kyungsan, Korea;(2) School of Materials Science and Engineering, Seoul National University, 151-742 Seoul, Korea |
| |
Abstract: | An investigation of the dimensionless torque in the newly developed cone drum twister texturing mechanism is reported. The
cone drum twister is one of the outer surface contacting friction-twisting devices in false-twist texturing. In this cone
drum twister, a filament yarn passes over the surface of the cone drum that rotates by the passing yarn without a special
driving device. This research is composed of the theoretical analysis of the false twisting mechanism and the experimental
analysis at room temperature. The equations have been derived which shows interrelationship of the conical angle of cone drum,
the wrapping angle, the drag angle, and the yarn helix angle. Theoretical values of dimensionless torque were calculated and
were compared with the experimental results. It is shown that, as the conical angle and the projected wrapping angle increased,
the dimensionless torque also increased. But the conical angle was reached to 30.75°, the dimensionless torque decreased. |
| |
Keywords: | Dimensionless torque Relative velocity of friction surface Drag angle Cone drum twister Outer surface contacting friction-twisting device Conical angle Projected wrapping angle |
本文献已被 SpringerLink 等数据库收录! |
|