縫(feng)(feng)(feng)紉(ren)機(ji)一般是(shi)由機(ji)頭(tou)、機(ji)座、傳動和附件四部分組成，能(neng)縫(feng)(feng)(feng)制棉、麻、絲、毛、人造纖(xian)維等織物和皮(pi)革、塑料(liao)、紙張等制品，縫(feng)(feng)(feng)出的線(xian)跡(ji)整(zheng)齊美觀、平整(zheng)牢固，縫(feng)(feng)(feng)紉(ren)速度快(kuai)、使(shi)用(yong)簡便。通常分為鎖式線(xian)跡(ji)和鏈式線(xian)跡(ji)縫(feng)(feng)(feng)紉(ren)機(ji)兩類，鎖式線(xian)縫(feng)(feng)(feng)紉(ren)機(ji)線(xian)跡(ji)分布密(mi)實，縫(feng)(feng)(feng)紉(ren)的牢度一般超過手(shou)工縫(feng)(feng)(feng)紉(ren)，鏈式線(xian)跡(ji)富有彈性，能(neng)隨(sui)縫(feng)(feng)(feng)料(liao)一起伸縮而不會(hui)崩斷縫(feng)(feng)(feng)線(xian)，適用(yong)于彈性織物的服(fu)裝。【詳細>>】