Shamim Shihab

  Weaving Technology – I Weaving : Weaving is a method of textile production in which two distinct sets of yarns warp & weft are interlaced at right angles to form a fabric or cloth. Winding : The creation of large yarn packages that can be easily unwound, is called winding. This makes using the yarn on subsequent machines both easier and more economical. Winding is more than just transferring yarn from one package to another.   Object of Winding: ·        For weaving processes, this can be used to transfer yarn from one package to another. ·        To remove yarns faults like hairiness, neps, slubs, of foreign matter. ·        To clean yarn. ·        To increase the quality of yarn. ·        To get a suitable package. ·        To sore the yarn.  Types of Winding Precision Winding. Non-Precision Winding. Precision Winding By precision winding successive coils of yarn are laid close together in a parallel or near parallel manner. By this process

  Experiment Name:   Study on side lever under picking mechanism. Theory:  Picking is the second of the primary motion of weaving. The object of picking is to insert the weft yarn through the warp shred during weaving. It consists in passing a pick of weft between the upper and lower lines of a divided warp. In side lever under picking mechanism,  a circular disk carrying a bowl is driven by the bottom shaft and the picking stick is held in position outside the loom frame. The term under pick mechanism means the picking stick moves from the bottom of the box and pivot of the stick is placed below the box. Objective: 1) To learn about side lever under picking mechanism. 2) To learn about different parts used in this mechanism. Figure: Fig: Side Lever Under Pick Mechanism Related Machine parts: Bottom shaft Circular Disk Picking Bowl Picking Shoe Side Lever Pivot Guide Elbow Picking Stick Returning Spring Rocking Shaft Buffer Picker Shuttle Box Construction: 1) the circular disk received