Roving frame with bobbin changing device

A roving machine comprising:

• a flyer rail provided with two rows of flyers;
• a bobbin rail below said flyer rail and having bobbin carriers for receiving bobbin sleeves receivable within respective flyers and upon which bobbins are wound;
• and
• a bobbin change device for automatic replacement of full bobbins with empty sleeves, said bobbin change device comprising:
• a guide track extending along each of said rows of flyers on said flyer rail at a level substantially of heads of said flyers outside of said flyers and laterally spaced from the respective row of flyers so that said tracks alternate with said rows of flyers at said level,
• a suspension carriage train displaceable along said track and having spaced apart hangers for receiving full bobbins and supplying said empty sleeves,
• means for relatively transversely shifting said bobbin rail and said guide track to align said hangers and said bobbin carriers in a common vertical plane, and
• means for relatively vertically shifting said bobbin rail and said guide track to suspend full bobbins from said bobbin rail on said hangers and transfer empty sleeves from said hangers to said bobbin carriers.