Drawing-unit drive for spinning machines with a toothed change gear for changing the draft

摘要

The invention relates to a drawing-unit drive for spinning machines with a toothed change gear for changing the draft, which contains at least one shiftable wheel arrangement of constant centre distance and a manually exchangeable wheel arrangement. The object on which it is based is to reduce the outlay for changing the draft. This object is achieved in that the shiftable wheel arrangement consists of a sliding wheel (10) and of at least two mating wheels (11; 12) with profile displacement. The invention achieves the technical effect that the toothed change gear for changing the draft is designed without a transmission wheel and without a stay. <IMAGE>