TEXTILE

Drafting zone of draw frame spinning machine: Introduction: A long bar or shaft from one end of the draw frame machine to the other, with the drawing head being separately footed i.e. designed for gripping the fibers. The drafting roller is the part that performs the work for drafting or fiber gripping. The top roller …

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Draw frame introduction definition purposes function: Introduction: The draw frame is the third stage or step machine in the successive stages of yarn production. Usually, the ‘draw’ frame is used after the blow room and carding machine. In the sliver obtained from the carding machine, the fibers are cross-sectional, hook-shaped, draw-curved and sliver coarse-thin, etc. …

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Working process of building motion in simplex machine: Definition of building motion: The building is the process of wrapping the product in a simplex or any other machine in a specific manner on a bare bobbin in the correct shape. The motion with the help of which the manufactured product is wrapped in the empty …

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Flyer leading and bobbin leading principle in roving: 1. Flyer leading principle in roving: Flyer leading is the process of winding the roving bobbin through a spindle or flyer while keeping the speed of the bobbin constant. But the condition here is that as the roving is added to the bobbin, the diameter of the …

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How does winding occur in roving frame: Introduction: The thin and light fiber wave roving continues to emerge from the front roller surface of the frame. This delivered wave is converted into a specific package with a slight twist, which is easily used in subsequent machines. In a roving frame, the spindle and bobbin both …

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System of imparting twist in roving: Introduction: Cross-sectioning of yarn will reveal many fibers. The fibers in the yarn lie side by side. Similarly, in roving, the fibers lie side by side. If the roving is not given a twist, the fibers will come loose from the roving. So the fibers are held in the …

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Importance and factors of twist in roving frame: Introduction: A slight twist is imparted from the front roller of the roving frame to hold the light thin parallel fiber weave. By imparting a twist to the parallel fibers the fibers hold each other. Moreover, the roving does not tear easily from the bobbin, is easy …

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Roller setting and drafting in the roving frame: Roller setting in the roving frame: Roller setting is the process of positioning the machine’s rollers depending on the fiber length and the distance between the centers of the pair of rollers. The roller setting of the drafting zone in any machine usually depends on the staple …

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Description and working principles of simplex machine: Description of simplex machine: A simplex machine usually consists of the following parts: 1. Creel zone. 2. Drafting zone. 3. Delivery zone. 4. Spindle driving mechanism. 5. Bobbin’s driving mechanism. 6. Headstock & tail stock. 7. Others. 1. Creel zone: Sliver cans from the drawing frame are located …

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