Browsing tag
Weaving looms can range from quite simple to very complex. Looms have been used to produce cloth for thousands of years, and while technology has improved the loom, the basic strategies and practices remain much the same. Understanding the parts of the loom can help you learn to weave or simply learn a bit more about how weaving works.
Special equipments to improve efficiency and accuracy of weaving machines, reducing manual work are required. With a view to increase the efficiency and the flexibility of the weaving machines, the manufacturers have made considerable efforts to find solutions capable of simplifying and speeding up the operations and the machine settings at style changing and to permit coping better with particular production requirements.
The angle which is formed by the raising threads with the threads remaining in low position is called shed. The shed must be as wide open as to permit the easy passage of the weft insertion element. The shed can be obtained by either moving the heald frames or by directly moving the heald frames through. The machines used to form the shed are cam machines, dobbies, and Jacquard machines.
Warp let-off system has a frequency converter, which is intended for letting off from warp beam or feeding unit. The drive is mounted either on the weaving machine or on a frame positioned behind the weaving machine. The let-off starts with a machine running signal; the speed of the let-off motor is controlled by a proximity switch mounted on the whip roller system and an internal speed memory. An alarm signal switches the weaving machine off in case of over tightened warp or any other error.
The projectile weaving machine made its appearance in the market at the beginning of the 50?s and is today still used in the whole world. In this weaving machine, the weft insertion is carried out by small clamp projectiles, which number depends on the weaving width and which with their grippers take out the weft yarn from big cross-wound bobbins and insert it into the shed always in the same direction.
Rapier weaving machine delivers excellent fabric quality at the right price. Its flexibility, high level of user-friendliness and versatility make it an ideal means of production for weavers of fabrics. It is a shuttleless weaving loom in which the filling yarn is carried through the shed of warp yarns to the other side of the loom by finger-like carriers called rapiers. These machines are used for weaving textile articles such as shirting, dress material, furnishing.