Weaving loom instructions and Motion

The machine used for weaving is called loom. Weaving loom instructions is the most important for a weavers. The warp yarns after sizing is wound on a beam called warp beam is set in the feed side of a loom. Then the warp yarn passes over the back rail & then through the heald eyes of the heald wires. For each warp yarn one heald eye is needed. Heald wires are arranged in the heald frame. Generally 2 to 8 heald frames are used in a loom. If 2 heald frames is used, then the warp yarn are divided into two groups & passes the yarns through heald eves of the two heald frames & alternate yams passes through the same heald frame. Then the warp yarns passes through the dents of the reed through each dent two warp yarns are passed. The reed is situated on the movable slev. Then the warp yarns passes over the front rail, & cloth take-up roller. The primary function of a loom is discussed below:

Weaving loom instructions

Weaving loom instructions weaving machine

Shedding: Weaving loom instructions are the shedding motion. During weaving, the total warps yarns are divided into two groups called Shedding. Two groups of warp yarns are made in the loom by raising & lowering of heald frames by the use of a Tappet. The tappets may be plain or twill that is according to fabric structure to be made. Besides tappet shedding, there are some other shedding mechanisms also available. Dobby shedding & Jacquard shedding is also well known to the weavers.

Picking: Weaving loom instructions are the picking motion.  As the shed is formed in the loom, the west yarns are passed through the shed by picking mechanisms. Generally a shuttle with a weft yarn package called pirn, passes through the shed & leaves a weft yarn in the shed. There are various types of picking mechanism available in the loom, to pass the west yarn through the shed. Rapier, projectile, water jet, air-jet etc. weft insertion mechanism is popular all over the world.

Beating: Weaving loom instructions are the beating motion. When the west yarns are laid in the shed, this weft yarn is smoothly placed to the fell off the cloth in a regular way by the movement of the reed, which is secured in the sley. The sley moves to & fro by gearing connections.

The above mentioned three primary motions of a loom i.e. shedding, picking, & beating is performed in a cyclic order & the fabric is produced. Then the fabric is passed over the front rail & wound on the cloth roller.

There are many additional mechanisms available in a modern loom. Some of them are mentioned below for Weaving loom instructions:

  1. Warp stop motion.
  2. Weft stop motion.
  3. Warp protector mechanisms.
  4. Pirn changing mechanisms.
  5. Shuttle changing mechanisms.
  6. Selvedge cutting mechanisms.
  7. Selvedge forming mechanisms.
  8. Warp let-off motion.
  9. Fabrics take-off mechanisms.