The invention discloses a needle knitting machine for producing knitted tubes and a production method of knitted tubes. The needle knitting machine for producing knitted tubes comprises a frame; a knitting unit arranged on the frame and capable of knitting knitting yarn into a knitted tube, the knitting unit having a first through hole for the knitting yarn or knitted tube to pass through; a feeding unit arranged at the front end of the knitting unit for conveying an external elastic tube into the knitted tube knitted by the knitting unit, and/or an outer tube forming machine arranged at the rear end of the knitting unit for forming an outer tube on the periphery of the knitted tube knitted by the knitting unit. Thus, double-layer or triple-layer tubes of any length can be directly prepared by the needle knitting machine, and the service life of the obtained double-layer or triple-layer tubes is longer than that of single-layer knitted tubes. Moreover, since the manual process of sleeving an inner tube and/or an outer tube is omitted and there is no need to connect two double-layer or triple-layer tubes with joints to obtain a required length, production efficiency is improved and production cost is reduced.
Area Code: CN
Application Number: CN201910926039.9
