Rapier Loom Technology and Operation
category
Rapier looms insert weft yarn by threading it through the shed using one or two rigid or flexible carrying elements called rapiers that reach into the shed from one or both sides, with single-rapier systems carrying yarn from one selvedge to the other and double-rapier systems meeting at the shed centre for yarn transfer, achieving weft insertion speeds of 800 to 1500 metres per minute at loom speeds of 200 to 600 picks per minute across fabric widths of 150 to 540 centimetres.
Role
Provides the most versatile shuttleless weaving technology applicable across the widest range of yarn types from fine filament to coarse technical yarn and the broadest fabric category coverage from fine silk suiting to heavy industrial fabric, with rapier weaving dominating the global installed base of shuttleless looms from this versatility that makes it the default technology for weaving operations requiring flexibility across multiple yarn and fabric specifications.
Subtopics
- Rigid and Flexible Rapier Systems Rigid rapier systems use a solid rod or tube that extends from the loom frame into the shed, with a …
- Single-Rapier and Double-Rapier Insertion Principles Single-rapier systems carry the weft yarn from one selvedge all the way across the full shed width t…
- Rapier Head Design and Yarn Gripping Mechanisms Rapier gripper heads use spring-loaded clamps, needle-and-hook mechanisms, or friction grip surfaces…
- Rapier Motion Profile and Drive Systems Rapier motion is generated by conjugate cam drives, servo motor direct drives, or lever mechanisms c…
- Multi-Colour Weft Selection on Rapier Looms Rapier looms accommodate multi-colour weft insertion through weft selector systems at the loom side …
- Rapier Loom Selvedge Formation Systems Rapier loom selvedge formation uses leno selvedge heddles that twist edge threads around each insert…
- Weft Feeder Systems for Rapier Looms Weft pre-winding feeders store a measured length of weft yarn on a stationary drum before each pick,…
- Rapier Loom Speed and Fabric Width Relationships Rapier loom weaving speed in picks per minute decreases with increasing fabric width as the time req…
- Beat-Up and Reed Design for Rapier Weaving Rapier loom reed design uses profiled reed dents that provide a guide channel for the rapier band or…
- Rapier Weaving of Technical and Heavy Fabrics Rapier looms handle the widest range of technical and specialty yarn types including glass fibre, ca…