Double twist spindle apparatus
AssigneeKabushiki Kaisha Ishikawa Seisakusho, Ltd.
InventorsYukio Takeuchi, Akio Nakahashi, Shingo Kubota
Life of this patent
Estimating the term…
Abstract
A double twist spindle apparatus is arranged to wind two lines of first-twisted component yarns after arranging them in order and performing second twisting operation. A take-up bobbin which winds the first-twisted component yarns is rotated by skin frictional drive of a driving roller wherein a yarn winding speed is kept constant even if winding diameter is increased. A hollow spindle and a driving roller are independently driven by separate driving sources. Accordingly, the relation between rotating speed of the hollow spindle and winding speed of the take-up bobbin can be simply changed by regulating the rotational ratio of the two driving sources.
Claims1
A double twist spindle apparatus, comprising:
- a hollow spindle rotatably supported by a bolster fixed to the main frame of machine;
- a bowl-shaped rotating disc unitarily arranged in the hollow spindle;
- a stationary member supported at an end portion of the hollow spindle and being kept under non-rotation state;
- hollow tubular portion unitarily arranged on the stationary member at a coaxial position with the hollow spindle in series;
- a bobbin holder positioned at outer periphery of the hollow tubular portion and being rotatably supported on the hollow tubular portion;
- a take-up bobbin fitted on the bobbin holder and supported thereat;
- a driving roller supported by the stationary member;
- pressing mechanism which always brings the driving roller in contact with outer preiphery of the take-up bobbin;
- a traverse guide supported by the stationary member and performs straight reciprocating motion in the direction parallel to the take-up bobbin;
- yarn inserting holes arranged in the hollow spindle and hollow tubular portion;
- yarn guiding means for guiding two lines of yarns to the yarn inserting holes and traverse guide;
- first driving force inputting means for rotatively driving the hollow spindle directly;
- second driving force inputting means for rotatively driving the driving roller;
- transmission means for transmitting driving force of the second driving force inputting means to the driving roller;
- a driver wheel which is rotatively driven by the second driving force inputting means and being rotatably supported by the bolster;
- a driven wheel which stands opposite to the driver wheel with the rotating disc therebetween and being rotatably supported by the hollow spindle;
- magnetic transmission means for transmitting driving torque of the driver wheel to the driven wheel by magnetic attracting force;
- a driving shaft supported by the stationary member and being arranged in parallel with the take-up bobbin;
- transmission means for transmitting the rotation of the driven wheel to the driving shaft;
- transmission means for transmitting the rotation of the driving shaft to the driving roller;
- a tube rotatably fitted on the driving shaft;
- an arm unitarily mounted on the tube and supporting the driving roller;
- and
- a spring means connected with the tube and energizing the tube in the direction the driving roller presses in contact with the take-up bobbin.
Dependencies are inferred from the claim text.