Fully automatic method for handling yarn knots in a continuous flat knitting process
US12344973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2024 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Apr 8, 2044 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04B35/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The method includes the following steps: A knot alarm detects knots and triggers an alarm; the machine automatically loads and runs a preset knot handling program; the machine pulls out the yarn segment containing the knot from the knitting area and secures the knot; the machine reinserts the subsequent yarn back into the knitting area, returning to the knitting position before the alarm; the machine cuts off the excess yarn segment containing the knot and continues knitting. The process method of the present invention utilizes a knot alarm set on the flat knitting machine to automatically detect knots on the yarn in advance. Once a knot is detected, the yarn segment containing the knot is pulled out and cut off, thereby removing the knot while hiding the yarn breaks and preventing yarn ladder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.