Filament winding apparatus

Patent metadata

Field	Value
Publication number	US-11931974-B2
Application number	US-201917293069-A
Country	US
Kind code	B2
Filing date	Nov 12, 2019
Priority date	Nov 15, 2018
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

A filament winding apparatus includes a rail extending in a first direction, a core material support device that supports a core material, and a winding device that winds a fiber bundle onto an outer peripheral surface of the core material, the winding device including: a guide unit having an opening through which the core material passes, and guiding the fiber bundle; and a main frame on which the guide unit is mounted; wherein the main frame is movable relative to the core material in the first direction, the main frame is movable in a second direction orthogonal to the first direction, and the main frame is rotatable around a first rotational axis extending in a third direction orthogonal to each of the first direction and the second direction.

First claim

The invention claimed is:

1. A filament winding apparatus comprising a rail extending in a first direction, a core material support device that supports a core material, and a winding device that winds a fiber bundle onto an outer peripheral surface of the core material, the winding device comprising:
a guide unit having an opening through which the core material passes, and guiding the fiber bundle; and
a main frame on which the guide unit is mounted; wherein
the main frame is movable relative to the core material in the first direction,
the main frame is movable in a second direction orthogonal to the first direction, and
the main frame is rotatable around a first rotational axis extending in a third direction orthogonal to each of the first direction and the second direction.

2. The filament winding apparatus according to claim 1 , further comprising:
a first drive source that moves at least any of the core material support device and the winding device in the first direction;
a second drive source that moves the main frame in the second direction;
a third drive source that rotates the main frame around the first rotational axis; and
a control device that controls the first drive source, the second drive source, and the third drive source, wherein
the control device controls operations of the first drive source, the second drive source, and the third drive source to adjust a posture of the guide unit such that a center of the opening always coincides with a center of the core material.

3. The filament winding apparatus according to claim 1 , wherein
the main frame comprises a sub frame that is mounted to be movable in the third direction, and
the guide unit is rotatably supported around a second rotational axis extending in the second direction by the sub frame.

4. The filament winding apparatus according to claim 3 , comprising:
a fourth drive source that moves the sub frame in the third direction;
a fifth drive source that rotates the guide unit around the second rotational axis; and
a control device that controls the fourth drive source and the fifth drive source; wherein
the control device controls operations of the fourth drive source and the fifth drive source to adjust a posture of the guide unit such that a center of the opening always coincides with a center of the core material.

5. The filament winding apparatus according to claim 1 , wherein
the core material support device supports the core material rotatably around a third rotational axis being parallel to the first direction, and
the core material support device comprises a sixth drive source that rotates the core material around the third rotational axis.

6. The filament winding apparatus according to claim 1 , wherein
the guide unit comprises:
a plurality of bobbin mounting parts for mounting bobbins on which the fiber bundles are wound; and
a fiber bundle guiding part that simultaneously guides the fiber bundles from the bobbins mounted respectively by the plurality of bobbin support parts to the core material.

7. The filament winding apparatus according to claim 1 , wherein
the guide unit comprises:
a tightening part that rotates around a center of the opening;
a unit frame that rotatably supports the tightening part; and
a fixed fiber bundle guiding part fixed on the unit frame,
the tightening part comprises:
a bobbin supporting part that supports a tightening material bobbin on which a tightening material is wound; and
a tightening material guiding part that guides the tightening material to the core material, and
the fixed fiber bundle guiding part simultaneously guides the plurality of fiber bundles to the core material.

8. The filament winding apparatus according to claim 7 , further comprising:
a creel stand that supports each of bobbins on which the fiber bundles are wound, the fiber bundles being guided by the fixed fiber bundle guiding part.

9. The filament winding apparatus according to claim 1 , further comprising:
a base frame movable in the first direction relative to the core material, and
the base frame supports the main frame from below.

Assignees

• Murata Machinery Ltd

Inventors

• Ikezaki Shu
• Tanigawa Motohiro
• Uozumi Tadashi
• Wada Hirotaka
• Goyude Masatsugu
• Miyaji Shota
• Miura Takahiro
• Tanaka Makoto
• Nakamura Daigoro
• Matsuura Tetsuya

Classifications

• B29C70/32 Primary

  on a rotating mould, former or core · CPC title

• B29C70/16 Primary

  using fibres of substantial or continuous length {(non-woven fabrics per se D04H3/00)} · CPC title

• B65H54/10

  for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers · CPC title

• B65H81/06

  Covering or wrapping elongated cores · CPC title

• B29C53/821

  Mandrels especially adapted for winding and joining · CPC title