縫(feng)紉(ren)(ren)機(ji)(ji)一(yi)般是由機(ji)(ji)頭(tou)、機(ji)(ji)座、傳動和(he)附件四部分(fen)組成(cheng),能(neng)縫(feng)制棉、麻(ma)、絲、毛(mao)、人造纖維(wei)等(deng)織(zhi)物(wu)和(he)皮革、塑料(liao)、紙張等(deng)制品,縫(feng)出的線(xian)(xian)(xian)跡(ji)(ji)整齊美觀(guan)、平整牢固,縫(feng)紉(ren)(ren)速度(du)快、使用簡便(bian)。通常(chang)分(fen)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)(ren)機(ji)(ji)兩類,鎖式線(xian)(xian)(xian)縫(feng)紉(ren)(ren)機(ji)(ji)線(xian)(xian)(xian)跡(ji)(ji)分(fen)布密實,縫(feng)紉(ren)(ren)的牢度(du)一(yi)般超(chao)過手工縫(feng)紉(ren)(ren),鏈式線(xian)(xian)(xian)跡(ji)(ji)富有彈(dan)性(xing),能(neng)隨縫(feng)料(liao)一(yi)起伸(shen)縮而不會崩(beng)斷縫(feng)線(xian)(xian)(xian),適用于彈(dan)性(xing)織(zhi)物(wu)的服裝。【詳細(xi)>>】