Patent: Air Jet Spinning Duplex Twister

Application (patent): CN02112467.1 application day: 2002.07.10

Open (announcement): CN1388278 public (announcement) day: 2003.01.01

Main classification number: category of D01H1/14: 24B

Classification number: D01H1/14; D01H4/08; D01H7/86

Applicant (patent holder): Donghua University

Address: 200051 West Yan'an Road 1882 Changning District, Shanghai

Invention (designer): Cheng Long Di; Zhu Zhangchen; Yu Xue ye; Lao Ji Hong; Jiang Hui; Xue Wenliang

Patent agency: Shanghai Xintian Patent Agency Co., Ltd.

Agent: Chung Cheng Xuan

Abstract: the invention belongs to the textile field, and provides an air-jet vortex spinning multiple twister using a swirling vortex twisting fiber bar. The compound twister is composed of an upper twister and a lower twister. It uses positive pressure air flow to generate vortex field and pipe flow, and fiber flows into the vortex field through the pipeline. The fiber whisker is swirling with the swirling airflow at high speed. At the same time, when the fiber whisker is swirling at high speed, the pipe flow protects and guides the twisting fiber bar rapidly leaving the eddy current field. During this process, the fiber bar is finished twisting and producing twisted yarn at high speed. The invention can produce high quality yarn at low cost and high speed.

Sovereignty: an air-jet spinning duplex twister, which includes an air inlet (1), a fiber inlet (5), an exhaust port (7), and a yarn outlet (14). The utility model is characterized in that the upper twister comprises a gas storage chamber (2), a nozzle (3), a vortex chamber (4), a whisker outlet (6) and a lower twister, and a gas storage chamber (2), a passage (8), a ring cavity (9), a contraction tube (10), a gas transmission channel mouth (11), an intake channel (12), and a bar entry (13). The upper twister and the lower twister are connected into a whole through the interface of the required exit (6) and the entry (13), which is installed on the rack between the drafting area and the winding area of the spinning machine.