Working principle of ring frame process

WORKING PROCEDURE OF RING FRAME MACHINE:

The working procedure of the ring frame machine can be understood in the following steps:

CREELING:

The roving bobbins obtained from the simplex process is used as feed material in the ring frame. These roving bobbins are mounted on the bobbin holders of the creel. The creel is mounted on the top of the ring frame machine. The roving now passes through the guide bar which guides it toward the drafting system. The creel is equipped with automatic roving break stop motion. When a roving break occurs in any spindle during the process, the stop motion actuates immediately and stops the working of that particular spindle.

DRAFTING:

When the roving gets entered into the drafting zone, it is drafted according to the desired count of yarn to be spun. The drafting system is inclined at 45-50 degrees in the ring frame machine. The working performance of a drafting system of ring frame greatly affects the yarn quality.

The amount of draft to be employed in the ring frame depends upon the material to be processed. It normally ranges between 35 - 40 in the processing of cotton fibres and up to 50 in the processing of synthetic material. The drafting system plays a very important role in the performance of the ring frame process. The higher draft range of the ring frame machine helps to reduce the yarn cost because coarser roving can be used. Thus operation cost in simplex gets reduced. The drafting rollers are loaded with spring pressure to maintain the regular gripping of rollers.
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