Spinning Machine Operation and Maintenance Procedures

I. General Provisions

1.1 Objective

These procedures are established to standardize the operation and maintenance of various types of spinning machines, ensure safe and stable equipment operation, improve spinning product quality, reduce equipment failure downtime, extend equipment service life, and prevent safety production accidents.

1.2 Basis

These procedures are compiled based on GB 17799.2 Safety of Textile Machinery Part 2: Spinning Machines, FZ/T 90074 General Principles for Textile Equipment Maintenance, the Production Safety Law, and enterprise equipment management regulations.

1.3 Scope of Application

These procedures apply to all ring spinning machines, rotor spinning machines, vortex spinning machines and supporting auxiliary equipment in the production workshop, covering the entire workflow of equipment operation, daily maintenance, periodic care, and fault troubleshooting.

1.4 Terminology

• Ring Spinning Machine: Equipment that converts fibers into yarn through three core processes: drafting, twisting, and winding. Main components include feeding device, drafting device, twisting and winding device, and transmission system.
• Rotor Spinning Machine: Equipment that uses airflow to condense fibers and twist them into yarn. Core components include opening roller, spinning rotor, yarn guide tube, and winding mechanism.
• Vortex Spinning Machine: Equipment that uses vortex fields to condense and twist fibers into yarn, featuring high spinning speed and short process flow.
• Drafting Device: Component that stretches fiber slivers to specified linear density, mainly composed of rollers, rubber rollers, and press bars.
• Winding System: Device that winds spun yarn into specified forms such as bobbins or packages for storage, transport, and downstream processing.

II. Operation Procedures

2.1 Pre-Operation Checks

• Read the operation panel display clearly before pressing any buttons or keys
• Develop the habit of observing left and right to confirm no personnel are performing maintenance work on the machine before operating
• When manually operating the cradle descent onto the bobbin gripping position on the ring plate, ensure correct alignment
• Verify all safety guards are properly installed
• Check lubrication oil levels in all designated points

2.2 During Operation

• Monitor the running status of all spindles continuously
• Observe yarn quality indicators including twist uniformity and evenness
• Listen for abnormal sounds or vibrations
• Check temperature of main bearings regularly

2.3 Shutdown Procedure

• Close the machine feeding device and properly store remaining raw materials
• Clean the machine surface and interior of accumulated fiber fly and dust
• Record operating parameters and any anomalies observed during the shift
• Disconnect power supply after complete shutdown

III. Maintenance and Care

3.1 Daily Maintenance

• Clean yarn guides, rollers, and drafting zones of accumulated fiber and dust
• Check and clean suction systems for proper airflow
• Inspect rubber roller surfaces for wear or damage
• Verify proper lubrication of all rotating components

3.2 Periodic Maintenance

• Weekly: Clean filters, check belt tensions, inspect electrical connections
• Monthly: Calibrate tension systems, check gear meshing, clean electrical cabinets
• Quarterly: Replace worn rubber cots, inspect spindle bearings, check drive motor conditions
• Annually: Comprehensive overhaul of drafting systems, spindle replacement evaluation, control system upgrade assessment

3.3 Lubrication Management

Use only specified lubricant grades for each component. Different lubricant grades must not be mixed. Follow the lubrication chart strictly for frequency and quantity. Document all lubrication activities.

IV. Safety Requirements

1. All maintenance work must be performed with equipment fully stopped and power disconnected
2. Wear appropriate personal protective equipment including safety shoes and hearing protection
3. Never reach into operating machinery
4. Keep work area clean and free of oil spills
5. Report any safety concerns immediately to supervisors