Bobbin supplying system in spinning winder

A spinning winder, comprising:

• a spinning machine having a first machine bed and a second machine bed, for producing spinning bobbins;
• a first transport band and a second transport band disposed adjacent said first and said second machine beds, respectively, said first and second transport bands having pegs for supporting bobbins thereon;
• a winder having a plurality of winding units, operable for winding spinning bobbins and for discharging empty bobbins;
• a bobbin transporting passage, provided adjacent the winding units, for transporting and supplying spinning bobbins to said winding units, said bobbin transporting passage having a portion thereof connected with said transport bands;
• at least one bobbin supplying station disposed adjacent said portion of the bobbin transporting passage which is connected with the transport bands, and operable for supplying spinning bobbins to said bobbin transporting passage;
• an empty bobbin feeding device for supplying empty bobbins discharged from the winding units onto the pegs of the transport bands;
• and
• a bobbin supplying system having a sensor disposed adjacent said at least one bobbin supplying station, for detecting the absence of a bobbin thereat and, in response thereto, for providing a spinning bobbin demand signal to the spinning machine, said bobbin supplying system further having drive means for driving said first and said second transport bands in response to the spinning bobbin demand signal so as to supply spinning bobbins from said transport bands to said at least one bobbin supplying station.

A method for supplying spinning bobbins doffed from first an second machine beds of a spinning machine to a winder, comprising the steps of:

• providing a first spinning bobbin demand signal;
• supplying a spinning bobbin doffed from said first machine bed to said winder, in response to said first spinning bobbin demand signal;
• providing a second spinning bobbin demand signal;
• supplying a spinning bobbin doffed from said second machine bed to said winder, in response to said second spinning bobbin demand signal.

A spinning winder, comprising:

• a spinning machine for producing spinning bobbins;
• a winder having at least one winding unit operable for winding spinning bobbins;
• a bobbin supplying station for supplying spinning bobbins produced by said spinning machine to said winder;
• a sensor for detecting the absence of a bobbin at said bobbin supplying station;
• and
• supplying means for supplying a bobbin produced by said spinning machine to said bobbin supplying station in response to the absence of a bobbin at said bobbin supplying station.

A spinning winder, comprising:

• a spinning machine having first and second machine beds for producing spinning bobbins from empty bobbins;
• a winder having at least one winding unit operable for winding spinning bobbins and for discharging empty bobbins;
• a first bobbin transport system operable for alternatingly transporting a spinning bobbin produced by said first machine bed with a spinning bobbin produced by said second machine bed to said winder
• a second bobbin transport system operable for alternating transporting of an empty bobbin discharged from said winder to said second machine bed with transporting of an empty bobbin discharged from said winder to said first machine bed.