| 摘要 |
A winding apparatus for newly formed strands of thermoplastic material, constituted by filaments issuing from a plurality of spinning nozzles of a spinneret containing said material in liquid form, such as molten glass, disposed below the latter. Two winding drums on fixed axes extend in parallel to each other in a plane inclined to the horizontal, onto which are adapted to be mounted empty spools, and with which cooperate strand traverse mechanisms which serve to lay up the strands on the spools in crossing relation while the rotary movement of the latter effects a drawing-out of the filaments. The specific disposition of the winding drums permits a convenient transfer of the strands issuing from the spinneret, from the filled bobbins on one drum to the empty bobbins on the other drum without interrupting the drawing-out of the filaments. This transfer may be executed in a non-automatic, semi-automatic, or fully automatic manner. In the last-mentioned case, the completion of a predetermined number of revolutions of the active winding drum, automatically positions an auxiliary rotary winding cage onto the end of the last-mentioned drum by means of a pivotal movement followed by an axial movement of the cage. A deflecting bar shifts the strands from the bobbins being wound on the winding drum onto the winding cage whereat the drawing out of the filaments continues. The rotary cage is then moved axially from the end of the active winding drum, rotated into coaxial position with the heretofore idle winding drum and axially shifted onto the end thereof, without any interruption of the drawing out of the filaments. When the last-mentioned drum reaches its proper rotary speed, the strands are moved back from the winding cage to their winding positions governed by the strand traverse device associated with the last-mentioned drum, for filling up the spools which had been mounted on the last-mentioned drum. The first drum is braked, unloaded and charged with empty spools in readiness for the next transfer of the strands thereto, during the winding operation on the second drum. |
