Automated Drawing-In Machine Technology
topic
Automated drawing-in machines including the Stäubli DELTA system use fibre optic end separation, pneumatic end transfer through heddle eyes, and robotic denting through reed spaces to thread up to 5000 ends per hour with accuracy exceeding 99.9 percent, processing warp beams of up to 400 centimetres width from a programmed draft sequence downloaded from the weave design system, with colour sensor verification of yarn colour at each end position for multi-colour warps.
Role
Replaces the highly skilled and time-consuming manual drawing-in operation with automated threading that achieves higher speed and consistency than manual methods for standard plain and twill weave constructions on large-volume production warps, with the capital investment in automated drawing-in being justified by the combination of labour cost savings, faster warp change turnaround, and improved threading accuracy that reduces the systematic fabric defects caused by drawing-in errors.