To provide a regulatory drawing frame capable of improving the guide of a sliver, enabling a smooth operation, corresponding to the change of the kinds and/or number of slivers, and improving the access to a sliver guide at the time of cleaning.
A sliver guide 2 is arranged at the inlet of a drafting device and at the upstream position of a roller pair 4, 5. Slivers are collected at the guide 2 on a plane, and separated again at the back side of the roller pair 4, 5. A touch sensor element 22 is attached to the guide 2, and defines a contracted part with an immobile counter face 34 for the fiber bundle. When the fiber bundle touches the touch sensor element 22 and the position of the touch sensor element 22 is changed, the touch sensor element acts on a measuring member 33 to generate a control pulse. The counterelement 34 can be turned, and the guide 2 has an inlet inner diameter and an outlet inner diameter. A controllable preload is added to the touch sensor element 22. The touch sensor element 22 is turnable in the outside.
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