As the core equipment for technological upgrading in the textile industry, the new spinning machine integrates automation, intelligence, and efficient design. However, its high-precision and high-speed characteristics also pose higher requirements for operation and maintenance. The following are the key precautions in the use of the new spinning machine, covering four aspects: operation specifications, maintenance, safety protection, and abnormal handling:
1. Operation specifications: ensure stable operation of the equipment
1. Strictly follow the start-up and shutdown process
Pre start inspection: mechanical part: check whether each transmission component (such as roller, spindle, steel ring) is loose, whether the belt tension is appropriate, to avoid parts falling off or wear due to vibration.
.Electrical system: Confirm that the power supply voltage is stable (error ≤± 5%), check whether the electrical components such as sensors and encoders are firmly connected, and prevent signal interference from causing faults.
. Lubrication system: Check whether the oil pump and oil pipe are unobstructed, and whether the oil level is within the normal range (such as at 1/2-2/3 of the oil window), to avoid bearing overheating or wear caused by lack of oil. Shutdown sequence: First, reduce the equipment speed to idle state, then turn off the main motor, suction system, and control system in sequence to prevent sudden power outages from causing yarn entanglement or mechanical impact. When the equipment is shut down for a long time, it is necessary to clean the residual yarn inside the equipment and apply anti rust oil to protect the metal parts.2. Precise setting of process parameters
Speed matching: Adjust the spindle speed (usually within the range of 5000-15000rpm) and stretching ratio (such as 4-8 times) according to the yarn variety (such as cotton yarn, synthetic yarn) and count (such as 30S, 40S), to avoid yarn breakage or uneven dryness caused by improper parameters.
.Example: When producing 40S pure cotton yarn, it is recommended to control the spindle speed at 8000-10000rpm and the stretching ratio at 5-6 times to reduce fuzz and breakage rate.
.Tension control: By using tension sensors or mechanical adjustment devices, the yarn tension is ensured to be stable (with an error of ≤± 5%), preventing yarn stretching deformation or breakage caused by tension fluctuations.
. Regularly calibrate the tension sensor to avoid affecting control accuracy due to signal drift.3. Raw material and yarn management
Raw material pretreatment: Cotton fibers need to go through processes such as loosening, impurity removal, and humidification to control impurity content ≤ 1.5% and moisture regain of 6% -8%, reducing impurities and static electricity during spinning.
.Chemical fiber raw materials need to be placed in a constant temperature and humidity workshop (temperature 20-25 ℃, humidity 55% -65%) for at least 24 hours in advance to eliminate internal stress and avoid hairiness during spinning.
.Yarn channel cleaning: Regularly clean the yarn guide, tension plate, winding device and other parts of the yarn to prevent yarn friction from increasing and causing breakage.
. Use compressed air (pressure 0.2-0.3MPa) to blow and avoid scratching and damaging the surface of the components with hard objects.2. Maintenance: Extend equipment life
1. Daily cleaning and lubrication
Cleaning cycle: Clean flying flowers and yarn dirt once per shift (8 hours), with a focus on inspecting dust prone areas such as roller grooves and spindle bearings.
. Clean the equipment casing and electrical cabinet with neutral detergent every week to prevent dust from entering and causing short circuits. Lubrication requirements: High speed components (such as spindles and roller bearings) should use anti-wear hydraulic oil (such as ISO VG46), which should be replaced every 500 hours; Low speed components (such as gearboxes) use industrial gear oil (such as ISO VG220), which should be replaced every 2000 hours. When lubricating, it is necessary to add oil through a dedicated nozzle to avoid oil contamination of the yarn.2. Regular maintenance of key components
Roller and leather ring: Check the surface wear of the roller every 3 months, and replace it if the groove depth exceeds 0.1mm;
;The leather ring should be replaced every 6 months to prevent uneven drying caused by aging and cracking.
.Ingot and steel ring: The ingot undergoes dynamic balance testing every year, with a deviation of ≤ 0.05g, to avoid excessive vibration during high-speed rotation;
;The steel collar should be replaced every 2 years to prevent the increase of yarn fuzz caused by inner circle wear.
.Electrical components: Check the cooling fans of control modules such as frequency converters and PLCs for normal operation every six months, and clean the dust on the cooling fins;
; Calibrate the sensor annually to ensure signal accuracy (such as displacement sensor error ≤ ± 0.01mm).3. Spare parts inventory management
List of vulnerable parts: roller leather rings, spindle bearings, steel rings, yarn guides, etc. It is recommended that the inventory level meet the production demand for 3 months.
.Quality control of spare parts: Choose original manufacturers or suppliers certified by ISO 9001 to avoid using inferior spare parts that may increase equipment failure rates.
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