Loom accessories are the components and parts that assist the loom in functioning properly and play a crucial role in the fabric - making process. Here are some common ones:
Warping Equipment: It includes warping beams, which are large cylindrical rollers that hold the warp threads. They provide a stable and organized supply of warp threads for the weaving process.
Weft Insertion Devices: Shuttles are the most traditional weft - insertion tools. As mentioned before, they carry the weft thread through the warp threads. In modern looms, there are also shuttle - less weft - insertion devices, such as projectiles, rapiers, air - jets, and water - jets. Projectiles use small projectiles to carry the weft thread; rapiers use a rapier - like mechanism to insert the weft; air - jets and water - jets use air or water pressure to shoot the weft thread through the warp.
Heddles and Reed: Heddles are thin, wire - like devices that hold the warp threads and are used to create the shed by raising and lowering the warp threads. The reed is a comb - like structure with evenly spaced teeth. It is used to beat the weft thread into place and also controls the width and density of the fabric.
Take - up and Let - off Mechanisms: The take - up mechanism winds the woven fabric onto a cloth roll at a constant speed, while the let - off mechanism releases the warp threads from the warp beam at a controlled rate to ensure a continuous and even supply of warp during weaving.
Tension Devices: These are used to maintain a consistent tension on the warp and weft threads. Tension control is essential for producing high - quality fabric with a uniform weave and preventing thread breakage.
Loom Frame and Supports: The loom frame provides the structural support for all the other components. It must be sturdy and stable to withstand the mechanical forces generated during the weaving process.
Drive and Transmission Systems: These include motors, belts, gears, and shafts that provide the power and transmit it to the various moving parts of the loom to ensure smooth and coordinated operation.
Stop - Motion Devices: These are safety - related accessories. They detect any abnormalities during the weaving process, such as thread breakage or improper weft insertion, and automatically stop the loom to prevent defects in the fabric and damage to the equipment.
Bobbin and Quill: Bobbins are small, cylindrical spools that hold the weft yarn. Quills are similar to bobbins but are often used in specific types of looms or for certain yarn - handling purposes.
Auxiliary Tools: This category includes various small tools and accessories, such as thread cutters, which are used to trim the threads; pickers, which are used to propel the shuttle in traditional looms; and measuring devices for checking fabric width and length.