Roving is a process of weaving. The cooked sliver can be processed into rovings of different counts and different twists for use in the spinning process.
1. The task of the roving process
1. Drafting: The sliver is drawn and thinned into a roving.
2. Twisting: Add a certain twist to the roving to increase the strength of the roving. In order to avoid accidental elongation during winding and unwinding, and to prepare for yarn drafting.
3. Winding: Wind the twisted roving on the bobbin. A package of a certain shape and size can be made to store, transport and adapt to the feeding on the spinning frame.
Second, the technological process of the roving frame
1. Feeding mechanism: can, guide roller, bell mouth.
2. Drafting device: The drafting roller, the drafting roller, and the pressure device are graded.
3. Twisting and winding mechanism: spindle, flyer, bobbin, upper and lower ribs.
