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Proper Maintenance is Key to Extending Water Jet Loom Service Life

As a high-efficiency weaving solution widely adopted by textile enterprises, water jet looms deliver optimal performance and component longevity only when properly maintained. Regular upkeep ensures:
Stable operation with precise part coordination
Extended durability of wear-prone components
Mastery of weft insertion techniques for diverse fabrics
Common Failures & Maintenance Protocols

Given the humid, demanding operational environment, water jet looms are prone to specific failures requiring targeted interventions:
Left/Right Scissor Mechanism
Failure Causes:
Blade wear from improper shear angle adjustment
Bearing-shaft friction damage
Maintenance:
Adjust blade overlap angle: Excessive tightness accelerates wear.
Prevent reed collisions: For optical sensors, cut a reed slot slightly wider than the scissor thickness.
Set cam to ~180° cutting position during installation.
Daily checks: Verify fastener tightness and positioning.
Ear Wire (Selvedge Twisting) Device
Failure Causes:
Rope-edge mechanism wear
Bearing degradation
Maintenance:
Balance tension between both wires to prevent jagged spool wear.
Optimize tension: Minimal slack when closed, adequate clearance from magnetic sensors when open.

Nozzle Misalignment
Cause: Gradual deviation from high-frequency water impact (~700 shots/min).
Maintenance:
Periodically recalibrate spray direction for consistent weft insertion.
Measuring Tape Belt Displacement
Components: Friction wheel, pressure roller, feed wheel, measuring belt.
Maintenance:
Ensure smooth pivoting on drum seat pins without lateral wobble.
Avoid excessive pressure on rollers and oil contamination.
Monitor belt alignment and tension; inspect related parts during replacement.
Abnormal Pump Pressure/Water Volume
Triggers: Fabric changes or parameter shifts.
Maintenance:
Standard range: Excessive pressure/volume indicates system faults (e.g., plunger, pump spring, check valves, nozzle wear).
Action: Verify pump components and weft insertion settings.

Conclusion

Failure patterns vary significantly across fabric types. Implementing disciplined maintenance—adjusting components, optimizing tensions, and preemptively replacing worn parts—enhances productivity, reduces labor costs, and secures long-term operational stability.

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