Wire winding method and wire winding apparatus

Patent metadata

Field	Value
Publication number	US-9842691-B2
Application number	US-201615184707-A
Country	US
Kind code	B2
Filing date	Jun 16, 2016
Priority date	Jun 23, 2015
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A wire winding method which can prevent twisting tendency of a wire and the occurrence of damage on the wire. The wire winding method includes: a first step of making a plurality of wires pass through a tensioner and a nozzle sequentially and fixing distal ends of the plurality of wires to a core side; and a second step of winding the plurality of wires on the core while twisting the plurality of wires by making the nozzle revolve around the core such that a mutual positional relationship between a plurality of wire insertion holes formed in the nozzle through which the plurality of wires are made to pass respectively with respect to the tensioner is set to a fixed value.

First claim

What is claimed is:

1. A wire winding method for winding a plurality of wires around a core of a coil component, the wire winding method comprising:
a first step of making the plurality of wires pass through a tensioner and a nozzle sequentially and fixing distal ends of the plurality of wires to the core; and
a second step of winding the plurality of wires on the core while twisting the plurality of wires by making the nozzle revolve around the core such that a mutual positional relationship of a plurality of wire insertion holes provided in the nozzle with respect to the tensioner is set to be constant, the plurality of wires being made to pass through the plurality of wire insertion holes respectively.

2. The wire winding method according to claim 1 , wherein in the second step, the core is made to rotate in the same direction as a rotational direction of the nozzle while the nozzle is made to revolve around the core.

3. The wire winding method according to claim 2 , wherein a rotational speed of the nozzle is set larger than a rotational speed of the core.

4. The wire winding method according to claim 1 , wherein in the second step, the core is made to rotate in a direction opposite to the rotational direction of the nozzle while the nozzle is made to revolve around the core.

5. A method of manufacturing a coil component where the coil component is manufactured by winding the wire on the core using the wire winding method according to claim 1 .

6. A wire winding apparatus for winding a plurality of wires around a core of a coil component, the wire winding apparatus comprising:
a tensioner which imparts tension to the plurality of wires;
a nozzle which has a plurality of wire insertion holes through which the plurality of wires are made to pass respectively, the tension being applied to the plurality of wires by the tensioner; and
a nozzle drive section which is configured to wind the plurality of wires on the core while twisting the plurality of wires by making the nozzle revolve around the core such that a mutual positional relationship of the plurality of wire insertion holes provided in the nozzle with respect to the tensioner is set to be constant.

7. The wire winding apparatus according to claim 6 , further comprising a core drive section which is configured to make the core rotate in the same direction as a rotational direction of the nozzle.

8. The wire winding apparatus according to claim 7 , wherein the core drive section is configured to set a rotational speed of the nozzle larger than a rotational speed of the core.

9. The wire winding apparatus according to claim 6 , further comprising a core drive section which is configured to make the core rotate in a direction opposite to the rotational direction of the nozzle.

Assignees

• Murata Manufacturing Co

Inventors

• Yamakita Takayuki

Classifications

• H01F41/082 Primary

  Devices for guiding or positioning the winding material on the former · CPC title

• B65H2701/36

  Wires · CPC title

• B65H54/026

  Doubling winders, i.e. for winding two or more parallel yarns on a bobbin, e.g. in preparation for twisting or weaving · CPC title

• H01F41/07

  Twisting · CPC title

• H01F41/069

  Winding two or more wires, e.g. bifilar winding · CPC title