Filament winding device

Abstract

A filament winding device includes a supporting section adapted to rotatably support a liner and be movable in an axial direction of the liner, and a helical winding unit adapted to helical wind a plurality of fiber bundles (F) on the liner moving in the axial direction while rotating. The helical winding unit includes a plurality of guides arrayed in a peripheral direction of a liner, and adaptedto guide each of a plurality of fiber bundles (F) supplied to the helical winding unit to the liner, and an opening member arranged downstream of the plurality of guides in a travelling direction ofthe fiber bundle (F), and including an inner peripheral surface for forming a hole, through which the plurality of fiber bundles (F) are inserted from one side to the other side in the axial direction. A plurality of opening surfaces on which the plurality of fiber bundles (F) travel while making contact are formed on the inner peripheral surface of the opening member, and a cross-sectional shapeorthogonal to the axial direction of each opening surface is linear.

Description

technical field [0001] The present invention relates to a single fiber winding device for winding a fiber bundle onto a sleeve (Japanese: ライナー; English: liner). Background technique [0002] Japanese Patent Laid-Open No. 2004-314550 discloses a single-fiber winding device that winds a plurality of fiber bundles around a sleeve. The monofilament winding device includes a support portion that rotatably supports the sleeve and is movable in the axial direction of the sleeve, and a helix that spirally winds the sleeve (winds the fiber bundle in a direction substantially parallel to the axial direction of the sleeve). head. [0003] The screw head has a plurality of fiber bundle guides for respectively guiding the plurality of fiber bundles to the sleeve, and has an inner peripheral surface for expanding the width of the plurality of fiber bundles guided by the plurality of fiber bundle guides (that is, fiber opening). expansion guide. The inner peripheral surface of the expan...

AI Technical Summary

Problems solved by technology

[0004] As described in Japanese Patent Application Laid-Open No. 2004-314550, if the inner peripheral surface of the dilation guide is circular (that is, the entire circumference continues to be in a curved shape), since the fiber bundle is in contact with the arc-shaped part, even if it is It is difficult to flatten even if the fiber is opened by pulling, and it is difficult to widen in the width direction (circumferential direction of the inner peripheral surface)

Therefore, when a plurality of fiber bundles are wound on the sleeve, circumferential gaps are likely to be generated between the fiber bundles, and there is a risk that the strength of the sleeve will be lowered.

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