Three methods for edge adjustment in a shuttleless locomotive

A shuttle loom is a traditional loom that uses a shuttle (stainless steel shuttle) to insert the weft. The shuttle is large and heavy, and the repeated back-and-forth motion causes significant machine vibration. A shuttleless loom, however, is a new type of loom that emerged after the shuttle loom. With its advantages of light weight, low vibration, low noise, high speed, and high efficiency, the shuttleless loom quickly captured the loom market. Below, we'll look at the edge adjustment method for a shuttleless loom:

1. Hooking the edge: As the needle moves forward, the weft hook passes between the needle tip and the needle cover. When the needle's forward movement ends, the needle retracts and hooks the weft yarn.

2. Single-lock edge: When the weft hook enters the opening to the right, the needle enters from above the weft yarn and below the weft hook. At this point, the bobbin thread has risen from the right side of the needle and contacted the weft hook. When these three movements reach their end, a reversal occurs: the weft hook retracts, the needle also retracts and hooks the bottom thread, and the bobbin thread hook descends. Throughout the entire process, careful adjustments are necessary to ensure the three parts do not collide.

Single-lock stitches can be divided into inner and outer locks. Inner locks mean that when the weft hook enters the opening to the far right, the bobbin hook enters from inside the weft hook. Outer locks mean the bobbin hook enters from outside the weft hook. (Inner locks can be considered when the bobbin is prone to fraying or breaking.)

3. Double-lock stitches: When the weft hook enters the opening to the right, the knitting needle enters from below the weft. At this point, the bobbin has risen from the right side of the knitting needle and contacted the weft hook. When all three actions reach their endpoint, a reversal action follows: the weft hook retracts, the knitting needle also retracts and simultaneously hooks the bobbin and weft, the bobbin hook descends, and the weft hook also retracts simultaneously. Throughout this process, careful adjustments are necessary to ensure the three parts do not collide.