縫(feng)紉(ren)機一(yi)(yi)般是由機頭(tou)、機座、傳動和(he)附(fu)件四部分組成(cheng)，能縫(feng)制棉、麻(ma)、絲、毛、人造纖維等織(zhi)物(wu)(wu)和(he)皮革、塑(su)料、紙張等制品，縫(feng)出(chu)的(de)線(xian)(xian)(xian)跡(ji)(ji)整(zheng)齊美觀、平整(zheng)牢(lao)固，縫(feng)紉(ren)速(su)度(du)(du)快(kuai)、使用(yong)(yong)簡(jian)便。通(tong)常分為鎖式線(xian)(xian)(xian)跡(ji)(ji)和(he)鏈式線(xian)(xian)(xian)跡(ji)(ji)縫(feng)紉(ren)機兩(liang)類(lei)，鎖式線(xian)(xian)(xian)縫(feng)紉(ren)機線(xian)(xian)(xian)跡(ji)(ji)分布密實，縫(feng)紉(ren)的(de)牢(lao)度(du)(du)一(yi)(yi)般超過(guo)手工縫(feng)紉(ren)，鏈式線(xian)(xian)(xian)跡(ji)(ji)富有彈性，能隨縫(feng)料一(yi)(yi)起伸縮(suo)而(er)不會崩斷縫(feng)線(xian)(xian)(xian)，適(shi)用(yong)(yong)于彈性織(zhi)物(wu)(wu)的(de)服(fu)裝。【詳細>>】