Shed Geometry Management in High-Hook Jacquard
topic
High-hook Jacquard machines managing 6000 to 20000 warp ends must maintain clean shed geometry across the full warp width with harness cords from all hook positions forming clearly separated upper and lower shed halves, requiring careful harness cord length calibration that equalises the shed line height across all positions, regular comber board inspection for wear-induced hole enlargement that allows cord lateral displacement, and back rest height optimisation that balances warp tension against shed opening angle.
Role
Ensures the clean shed formation required for reliable weft insertion across the full width of high-capacity Jacquard looms where the large number of harness cords creates the risk of shed contamination from displaced cords and where the mechanical complexity of managing thousands of independently moving elements requires systematic calibration and maintenance to maintain the geometric precision that clean shed formation and defect-free weaving require.