Maintenance in wet processing Machine

Maintenance Of Textile Machineries Maintenance Of Textile Machineries Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13 th Batch (session 2009-2013) Department : Wet Processing Technology Email: mazadulhasan@yahoo.com Blog : www. Textilelab.blogspot.com (visit) Southeast University Department Of Textile Engineering I/A 251,252 Tejgaon Dhaka Bangladesh Prepared By : Actions necessary for retaining or restoring a piece of equipment, machine, or system to the specified operable condition to achieve its maximum useful life. Maintenance is a set of organized activities that are carried out in order to keep an its in its best operational condition with minimum cost required. Maintenance: Machine, buildings and other facilities are subjected to deterioration due to their use and exposure to environmental condition. Process of deterioration, if unchecked, culminates in rendering these service facilities unserviceable and brings them to a standstill. In Industry, therefore has no choice but to attend them from time to time to repair and recondition them so as to elongate their life to the extent it is economically and physically possible to do so. Maintenance: Activities of maintenance function could be either repair or replacement activities, which are necessary for an item to reach its acceptable productivity condition and these activities should be carried out with a minimum possible cost. 1.To keep the factory plants, equipments, machine tools in an optimum working condition. 2.To ensure specified accuracy to product and time schedule of delivery to customer. 3.To keep the downtime of machines to the minimum thus to have control over the production program. 4.To keep the production cycle within the stipulated range. 5.To modify the machine tools to meet the need for production Objectives of Maintenance: Maintenance Preventive Maintenance Break Down Maintenance Electrical Maintenance Mechanical Maintenance Electrical Maintenance Mechanical Maintenance Maintenance of Machinery: Preventive Maintenance: Preventive maintenance is a predetermined routine actively to ensure on time inspection / checking of facilities to uncover conditions that may lead to production break downs or harmful description. Break Down Maintenance: In this case, repairs are made after the equipment is out of order and it can not perform its normal functions. Routine Maintenance: Maintenance of different machines are prepared by expert engineer of maintenance department. Normally in case of dyeing machine maintenance after 30 days complete checking of different important parts are done. • To keep the m/c running continuously up to the maximum production level • To make sure the best use of utilities • To prevent the undesirable failure of the m/c. • Reducing break down and emergency shut down • optimizing resources utilization • Minimizing energy usage • Improving equipment efficiency. • To Keep the machine running continuously up to the Maximum Production Level. • To make sure the best use of Utilities. • To prevent the undesireable failure of the machine. Objects: [...]... Bearing damage 3.5 hrs 2 hrs 2 hrs 2 hrs 3 3 1 3 630 min 360 min 120 min 360 min 21.22 12.12 4.04 12.12 Steam trap Mechanical seal 2 hrs 4 hrs 4 2 480 min 480 min 16.16 16.16 30 min 30 min 2 hrs 30 min 1 1 2 2 30 min 30 min 240 min 60 min 2970 min 1.01 1.01 8.08 2.02 Air unit Positioner TC oaring Butterfly valve Total Mechanism and working Procedure of Individual Machines Used in Wet Processing Industries... needles, cylinder base plate etc All around of the machine are kept neat and clean as if there is no dirt with yarn in the fabric •Schedule/Routine Maintenance: Every machine has a schedule of maintenance of 10 or 15 days According to date, schedule maintenance is taken on the machines Operators are informed about the time of maintenance After pre-estimated production, they hand over the machine to the... 3 4 5 Replace belts Repairing pulley, shaft & bearing housing Painting m/c, pipe line Replace seals Machine body repairing 1 Machine overhauling Half yearly Yearly Maintenance Tools & Equipments: 1 Combination tools / spanner Function: Tightening & loosening of nuts & bolts 2 Socket ratchet set Function: Tightening of nuts & bolts 3 Slide range Function: Tightening & loosening of nuts & bolts 4 Monkey... Cables of electrical wireing • And so on… Routine of Maintenance: •Daily Maintenance: Every machine is taken maintenance daily by the operators during production When the operator starts a production after handing over from previous shift operator, he takes a routine maintenance on the machine He cleans the machine, assures yarn is fed to all needles, cleans the eye pot of feeder, memminger, signal lamp... external threat cutting Maintenance Tools & Equipments: 13 Heavy scissor Function: Cutting of gasket & steel sheet 14 Oil can Function: Oiling of moving parts 15 Drill machine and drill bit Function: For drilling 16 Grease gun Function: For greasing of moving parts of m/c 17 Grinding m/c Function: For grinding & cutting of mild steel 18 Welding m/c Function: For welding & cutting 19 Spirit leveler... Dyeing machine Items need to be checked & Serviced Crease the m/c bearing 2 Complete cleaning of machine 3 Cleaning of drain valves, replace seals if required 4 Check air supply filters, regulators auto drain seals 5 Clean filters element and blow out 6 Greasing of unloading roller bearing 7 Checking of oil level and bolts of unloading roller gearbox 8 Checking of unloading roller coupling and packing... Water line Greasing bearing points Add gland packing at pump 1 2 3 4 5 Greasing bearing points Replace bearing points (if required) Gasket check Clean steam trap Lubricating all chemical pump Weekly Monthly Quarterly 1 2 3 4 5 6 Replace belts Repairing of pulley, shaft & bearing housing Painting m/c & pipe line Clean steam trap Replace seals (if leakage) Change gasket of stea m of water lines 1 2 3 4... Thus, fitters assure all machines are OK For any time •Break Down Maintenance: When product quality hampered and to complete production in due time break down maintenance is taken There are many faults seen in the fabric during production due to needle, sinker, take down roller etc Then operators inform the mechanical fitters and they fix it •Restorative Maintenance: Restorative maintenance is taken for... development According to advice or order of production officer, a machine is fixed for new design and mechanical fitters rearrange cam and needle system Planned and preventive maintenance are not taken on the machineries in this mill Maintenance Procedure: 1.For there is any mechanical fault of machine, which is responsible for production hamper, operator informs mechanical fitters in duty Mechanical... maintenance, senior production officer orders mechanical fitters to fit required machine for cam and needle arrangement and other necessary requirements in case of new design development Dyeing machine maintenance Schedule Daily 1 2 3 4 Check belt tension Check steam or water system & air supply Check chemical pump Machine clean 1 2 3 4 5 Bearing & belt check Check leakage of air, steam & Water line . of Maintenance: Maintenance Preventive Maintenance Break Down Maintenance Electrical Maintenance Mechanical Maintenance Electrical Maintenance Mechanical Maintenance Maintenance of Machinery: Preventive. lines Half yearly 1. Replace belts 2. Repairing pulley, shaft & bearing housing 3. Painting m/c, pipe line 4. Replace seals 5. Machine body repairing Yearly 1. Machine overhauling 1. Combination. wireing • And so on… Routine of Maintenance: • Daily Maintenance: Every machine is taken maintenance daily by the operators during production. When the operator starts a production after handing