Improvement of the sewing machine needle mechanism

In scientific work ways of increase of reliability and durability of the mechanism of a needle from elastic communication in sewing-machines for the purpose of maintenance of reliable and durable work of the mechanism of a needle dynamic loadings in support of links are considered hardenings of a working surface of a needle and details a choice of a material of needles and also modes of hardenings and technological schemes processing by a laser beam are recommended laser.On the basis of teoretiko-experimental researches ways increase of service life of a needle to20 are foundand is reached productivity of sewing-machines 2254 coupler/minute.