Apparatus for winding a yarn round a bobbin
AssigneeTeijin Limited
InventorsYosio Matuura, Shoichi Murakami, Norihisa Yamaguchi, Takashi Kishida, Sadao Kadokura, Kiyoshi Imai
Life of this patent
Estimating the term…
Abstract
A guide roller is traversed substantially in parallel to the axis of an uprightly supported bobbin at a speed slow enough not to form appreciable twilled angles of a wound yarn. The yarn continuously extruded from a spinning apparatus at a speed higher than 2000 m/min is introduced substantially in parallel to the axis of the bobbin and changes its direction to right angles with respect to the axis of the bobbin while travelling through the guide roller. The guide roller traverses with shorter traverse strokes as the diameter of the wound yarn becomes larger.
Claims6
An apparatus for winding a yarn round a bobbin without twisting, which comprises:
- an uprightly supported bobbin;
- means for driving said bobbin to wind the yarn extruded from a spinning apparatus at a speed higher than 2000 m/min.;
- a guide roller rotatably mounted to a supporting arm;
- means for introducing the yarn to said guide roller substantially in parallel to the axis of said bobbin;
- means for slowly traversing said guide roller supporting arm substantially in parallel to the axis of said bobbin;
- and
- means for traversing said guide roller supporting arm with traverse strokes which gradually become shorter as the diameter of the wound yarn becomes larger;
- said supporting arm comprising a bearing frame to which said guide roller is rotatably supported;
- a frame member to which said bearing frame is swingably pivoted;
- and
- a tension spring disposed between said frame member and bearing frame.
An apparatus for winding a yarn round a bobbin without twisting, which comprises:
- an uprightly supported bobbin;
- means for driving said bobbin to wind the yarn extruded from a spinning apparatus at a speed higher than 2000 m/min.;
- a guide roller rotatably mounted to a supporting arm;
- means for introducing the yarn to said guide roller substantially in parallel to the axis of said bobbin;
- means for slowly traversing said guide roller supporting arm substantially in parallel to the axis of said bobbin;
- means for traversing said guide roller supporting arm with traverse strokes which gradually become shorter as the diameter of the wound yarn becomes larger;
- an aspirator provided with a cutter at the upper end thereof, said aspirator being disposed between said bobbin and said guide roller;
- and
- means for moving said aspirator vertically up and down in parallel to the bobbin axis, said aspirator being normally located at a place below said traveling yarn between said guide roller and said bobbin, said aspirator being moved up when said bobbin is fully wound up to cut the traveling yarn and to pull the successively traveling yarn therein, and said aspirator being moved down after said yarn is pulled therein.
Dependencies are inferred from the claim text.