(57) Disclosed is a roving-piecing method in which, when the wound diameter of a roving
bobbin suspended from a bobbin hanger, from which a roving is withdrawn, is reduced,
and roving exchange becomes necessary, the end of a roving on a full bobbin to be
exchanged with the small bobbin is taken out, the end of the roving is held and guided
above a trumpet, the end of the roving is piled on the roving of the small bobbin
during spinning, holding of the end of the roving of the full bobbin is released,
and then, the roving of the small bobbin is cut to effect roving piecing. According
to this roving-piecing method, roving piecing can be accomplished in a short time
during the operation of a spinning frame, and automation of the roving-piecing operation
can be attained.
A roving-piecing head for use in carrying out this roving-piecing method comprises
a body having a roving guide groove formed in a top end portion thereof, a roving
holding lever mounted on the body, which is capable of reciprocating across the guide
groove, and a roving holding member arranged on the body on both sides of the guide
groove to co-operate with the roving holding lever for holding a roving.
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