編成応力によるよこ編機の編目形成過程の解析
第2報 給糸張力とカム形状の影響
1968 年 24 巻 2 号 p. 76-81
詳細
1968 年 24 巻 2 号 p. 76-81
In this paper, the effects of input yarn tension and shape of stitch cam on the loop formation process by latch needles, are analyzed by the knitting force. Experiments were performed using 5 kinds of stitch cam shown in Fig.1, changing the input yarn tension from 2 to 16g. Results obtained are as follows:
1) The length of yarn knitted into the loop depends upon the robbing back and upon the yarn elongation in the knitting zone. The yarn elongation must not be ignored even in the cam system where the cam system where the robbing back occurs.
2) The robbing back occurs in the region of loops which are held by one or two needles just passed the knitting point. The region differes depending upon the properties of the yarn used.
3) The wider the region and the larger the knitting force (the input yarn tension), the greater is the amount of yarn robbed by one needle from another.
4) The robbing back is affected by the variation of the frictional behavior of needles, which causes the vertical streaks in the knitted fabric.
