STRUCTURE AND WORKING PROCEDURE OF SIMPLEX OR ROVING FRAME MACHINE:
The separators are used to keep slivers away from each other in the creel. The guide rollers help to assure the movement of slivers toward the drafting system. The creel is equipped with sliver break stop motion. The stop motion acts immediately and stops the machine in case of a sliver break in the operation of a simplex machine. A very little amount of draft gets employed between creel and drafting system to maintain the tension of sliver fed and to avoid the slackening of sliver during operation. Group creel loading and changing result in the form of improved yarn quality. Since every piecing of sliver causes a thick or thin place in the yarn so that 30 – 60 cans are changed together to minimise the effect of sliver piecing in the roving.
Bobbin lead system: