Apparatus for controlling the bobbin drive of a flyer roving frame
AssigneeSchubert & Salzer
InventorsHermann Adolf, Bernhard Grupp
Life of this patent
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Abstract
A device for controlling the bobbin drive of a flyer roving frame which has a bobbin, a flyer and drive roll thereon that are utilized for building a bobbin with yarn. A drive for the frame incorporating a differential gear and controls are provided for adjusting the driving speed of the flyer and drive roll stepwise to different rotational speed stages during the building of the bobbin. An additional speed adjusting device is provided for automatically varying the driving speed of the bobbin within each rotational speed stage. A switching device is provided for automatically switching the rotational speed stages.
Claims8
An apparatus for controlling the bobbin drive of a flyer roving frame, a flyer associated with said bobbin;
- a drive roll supplying roving to said flyer;
- drive means for driving said flyer, supply roll and said bobbin;
- a differential gear interposed between said drive means and said bobbin;
- adjustment means connected to said differential gear for varying the speed of rotation of said bobbin, and means for controlling said drive means for adjusting the driving speed of said flyer and drive roll stepwise to different rotation speed stages during building of said bobbin, the improvement comprising:
- means for stepwise varying said adjustment means a different degree within said respective rotation speed stages so as to vary the driving speed of said bobbin within said rotation speed stages.
An apparatus for controlling the bobbin drive of a flyer roving frame, a flyer associated with said bobbin, a drive roll supplying roving to said flyer, and drive means for driving said flyer, supply roll and said bobbin;
- and means for controlling said drive means for driving said flyer and drive roll stepwise at different rotational speed stages during building of said bobbin, the improvement comprising:
- means for varying said driving speed of said bobbin to different degree during the different rotational speed stages while building said bobbin.
Dependencies are inferred from the claim text.