Method and apparatus for pneumatic guiding and capturing strand fibers on ring frame
US9963807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2015 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jul 10, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H1/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for ring-spinning with pneumatic guiding and capturing includes steps of: respectively fixing a pneumatic guiding and capturing apparatus in front of each drawing system of a ring frame; twisting the ribbon-like strand outputted through a front roller nip to form a spinning strand, moving the spinning strand into a holder groove of a capturing holder; guiding ribbon-like strand edge fibers to closely contact with a spinning strand main body by negative pressure airflow in the holder groove; before the ribbon-like strand edge fibers enter an in-take opening, cohering the edge fibers with the spinning strand for being partly captured by the spinning strand stem; other un-captured edge fibers become spinning strand hairiness, which is then stretched and tightly wrapped onto the spinning strand stem by a negative pressure; the spinning strand is outputted from the holder groove outlet to get a high qualified spun yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.