SPINNING MACHINE AND METHOD FOR CONTROLLING SPINNING MACHINE

A spinning machine (1) includes a roving-supply stop device (3) that includes a roving-supply stop member (30, 32) shifted between a first position for allowing the supply of a roving (9) to a drafting device (2) and a second position for stopping the supply of the roving (9) to the drafting device (2), and a holding member (38) for holding the roving-supply stop member (30, 32) in the first position against an urging force of an urging member (34). The spinning machine (1) further includes a return mechanism (41, 71) including a moving member (42, 72), a drive part (43, 73a, 73b, 74), and a return member (44, 44a-44e, 75). The return mechanism (41, 71) engages the return member (44, 44a-44e, 75) with two or more roving-supply stop members (30, 32) in the second position when the drive part (43, 73a, 73b, 74) moves the moving member (42, 72) together with the return member (44, 44a-44e, 75) in a base longitudinal direction (X), and returns the two or more roving-supply stop members (30, 32) from the second position to the first position through the engagement of the return member (44, 44a-44e, 75).