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AssigneeRieter Machine Works, Ltd.
InventorsEmil Briner, Peter Novak, Hermann Gasser
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The invention concerns an apparatus for controlling the rotational speed of the spindles of a spinning preparatory machine equipped with spindles and flyers. The proposed control arrangement comprises an infinitely variable variator, which is adapted or adjusted by using a control shaft which is rotatably indexed or stepped. The control or adjustment shaft is moved by a control motor which received its control or switching impulses from a motor control device comprising a programmable indicator or set value transmitter for the desired or set value and a correction element. According to a particularly advantageous design the correction element is of the form of a crossbar distributor arrangement. The apparatus is comfortable and easy to use by the operating personnel and permits, among other advantages, extremely accurate adaptation or adjustment of the spindle rotational speed. The adaption operations can be effected while the machine is running.
An apparatus for controlling the rotational speed of spindles of a spinning preparatory machine as a function of the increasing bobbin diameter of bobbins carried by the spindles and upon each of which bobbins there is formed a bobbin package, wherein flyers are operatively associated with the spindles carried by a spindle rail performing traversing movements, comprising:
Dependencies are inferred from the claim text.