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Production efficiency analysis – analysis of factors affecting production efficiency



Production efficiency analysis – analysis of factors affecting production efficiency The production efficiency of a rapier loom reflects the output of a single loom per unit …

Production efficiency analysis – analysis of factors affecting production efficiency

The production efficiency of a rapier loom reflects the output of a single loom per unit time. The production efficiency of the rapier loom is directly proportional to the starting speed, effective width and starting efficiency of the loom. The speed of the loom × the effective width is the main performance index of the rapier loom – the weft insertion rate. Different grades of looms have different weft insertion rates. For enterprises using rapier looms, production efficiency is mainly related to the following factors: 1. Poor weft yarn transfer often occurs during the production process due to various process parameters and related mechanism adjustments, and the weft yarn is broken at the weft yarn scissors. The scrap fabric edge on the right side is uneven, the weft yarn rebounds, the fabric edge on the right side has many warp breaks, the rapier head hangs up the warp yarn, side brace defects, double weft defects, broken defects, etc. may be related to the adjustment of process parameters and mechanism adjustment. Precise adjustment of rapier looms is the basis for improving production efficiency. 2. Maintenance and cleaning work of rapier looms Once the maintenance and cleaning work is done well, it will not only improve production efficiency, but also have a greater impact on the service life of the equipment. The mechanism of the rapier loom is complex and compact. Weft selection, beat-up, and weft insertion are reciprocated at high speed. During long-term operation, some parts will always be worn or damaged by fatigue. Common parts of the rapier loom are damaged such as guide hook wear. , spring failure or breakage, clutch friction plate wear, belt synchronous belt wear, sword head sword belt wear, transmission parts damage, etc. Good maintenance work can greatly reduce the wear or damage of parts, thereby reducing the number of shutdowns due to component failure. In addition, poor cleaning of the loom can cause flying flowers and adhesion of the spinning yarn, which will directly lead to broken warp and weft and stop the machine. The production efficiency of rapier looms has a lot to do with the quality of maintenance and cleaning work. Enterprises should develop maintenance, refueling, cleaning, and overhaul cycles to keep rapier looms in good working order. 3. Quality of mechanical parts and electronic components The rapier loom should further improve the quality of mechanical parts and electronic components, thereby improving the quality reliability of the loom, further improving the early trouble-free working time of the rapier loom, and reducing Downtime due to component failure. 4. Spinning yarn quality Spinning yarn quality includes raw yarn quality, warping quality and sizing quality. This is particularly important in cotton weaving production. In cotton weaving production, due to thick yarns, small yarns, cotton balls, uneven evenness, large knots, knot loss, brittle breakage, inversion, adhesion, twisting, etc. The proportion of stoppage caused by broken warp and weft is very large. In order to improve the production efficiency of the rapier loom, the spinning line of the rapier loom should be better, so that there are less yarn defects, and the winding should be automatic. The winding machine and air cleaner should have uniform tension during warping, the spinning yarn should be evenly arranged, and the warp beam should be flat. Reasonable sizing formula and sizing technology should be adopted to ensure good sizing beam quality. 5. Adopt a reasonable operating speed. Under normal circumstances, increasing the operating speed will lead to increased breakage of warp and weft yarns and increased material loss. Sometimes after increasing the operating speed, the start-up efficiency of the finished pipe is reduced, but the production efficiency can still be improved. Therefore, a speed with better technical and economic efficiency should be selected to improve the production efficiency of the rapier loom.
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