To uniquely arrange a sliver can in the center and to prevent an impact load on supporting rollers in relation to a device for the sliver can on a rotary can plate such as a drawing frame or a card.

Supporting rollers 8a, 8b and 9 are fixed for affording unique centering of the sliver can and preventing the impact load on the supporting rollers 8a, 8b and 9. The two supporting rollers 8a and 8b can be rotated inward and outward. The central point of the can plate 13 is superimposed on that of the supporting rollers 8a, 8b and 9 at a position where the two supporting rollers are rotated inward.