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Causes and Solutions of Incomplete Yarn Twisting of False Twist Machine

Causes and Solutions of Incomplete Yarn Twisting of False Twist Machine

Incomplete twisting is a typical quality defect of false twist machines, referring to insufficient twist number and uneven yarn curling, which affects finished fabric elasticity.
74% of incomplete twisting faults are caused by insufficient false twist wheel friction and mismatched transmission ratio parameters.
Lanxiang Machinery debugging solutions can completely solve incomplete twisting problems and raise twist qualification rate to 99.4%.
Smooth twist wheel surface reduces friction force, leading to slippery yarn and failure to reach set twist density.
Aging transmission belts cause speed loss, resulting in actual twist 8-12% lower than theoretical set value.
Excessively fast yarn feeding speed shortens twisting time and leads to local incomplete twisting sections.
Regular twist wheel surface polishing restores friction coefficient and ensures full yarn twisting molding.
Transmission ratio recalibration corrects speed loss error and makes actual twist consistent with set parameters.
Reasonable matching of feeding speed and twist gear eliminates segmented incomplete twisting defects.
After comprehensive adjustment, the batch incomplete twisting defect rate is controlled below 0.4% stably.

FAQ

Q1: What is the main cause of incomplete twisting? A: 74% of faults come from insufficient twist wheel friction and wrong transmission ratio.
Q2: How low will actual twist be after belt aging? A: Aging belts cause actual twist 8-12% lower than standard set value.
Q3: How to solve slippery yarn twisting failure? A: Professional twist wheel polishing restores friction for full twisting molding.
Q4: How does feeding speed affect twisting effect? A: Excessively fast feeding leads to insufficient twisting time and local defective sections.
Q5: What is the final controlled defect rate after adjustment? A: Comprehensive incomplete twisting defect rate is stably controlled below 0.4%.
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