Friction Disc Gap, Overlap Adjustment and Wear Replacement for False Twisting Texturing Machine

Precise overlap adjustment and periodic replacement of friction discs can lower uneven twisting defects below 0.9% on false twisting production lines. Data comes from spindle twisting test records and end break statistics, showing friction disc working state controls yarn twisting effect. Process and maintenance teams often search false twisting friction disc adjustment guide, texturing friction disc wear identification, disc aging twisting abnormality symptoms, twist unevenness troubleshooting, false twisting machine and chenille machine differences, POY false twisting forming scenarios, friction disc assembly specification, textile friction disc reliable vendor, ceramic friction disc and polyurethane friction disc comparison, twist system optimization solution ranking to manage twisting core components.

Friction disc group is the key part to generate false twist. Filament passes through overlapping disc gap, relying on friction between disc surface and fiber to produce twisting. The overlap quantity decides friction force and twisting stability. Improper overlap will lead to insufficient twist or twist fluctuation.

Visual inspection checks disc surface for scratches, grooves and material aging. Surface groove will form periodic twist variation along yarn length. Minor wear can be compensated by fine-tuning overlap amount. Once obvious groove or surface peeling appears, the whole set of friction discs must be replaced.

Overlap adjustment must be carried out according to yarn denier and raw material characteristic. Thick denier filament needs larger overlap to get enough friction; fine denier product uses smaller overlap to avoid excessive fiber damage. After adjustment, run single spindle test and test yarn twist value.

Dust and oil deposit on disc surface will change friction coefficient. During machine shutdown maintenance, clean fiber debris and oil dirt on disc surface gently. Do not damage disc working surface.

Common faults caused by worn friction discs include twist deviation, unstable crimp, periodic yarn thick-thin change and increased end break rate. When many spindles show twist non-uniformity, inspect friction disc wear and overlap first. Many operators adjust machine speed blindly instead of checking disc assembly.

Chenille core yarn false twisting requires stable twist value. Twist fluctuation of core yarn causes uneven shrinkage, leading to inconsistent pile arrangement after wrapping. The inspection frequency of friction discs for core yarn production spindles should be increased.

When selecting friction discs, maintenance team compares wear resistance, friction stability and fiber damage rate. New discs should be installed and run-in on test spindle, then track twist and yarn surface quality. Spare friction discs are stored in dustproof box to prevent surface contamination before installation.

Preventive maintenance includes regular wear inspection, overlap calibration, surface cleaning and timing replacement. Maintenance log records disc group serial number, installation time and spindle number. Summarize wear cycle under different raw materials.

After replacing friction discs or adjusting overlap amount, run at low speed first and sample yarn for twist testing. After twist index meets standard, switch to full production speed. Good friction disc management stabilizes false twist effect, reduces twist deviation and improves the consistency of textured yarn physical property.