COIL MANUFACTURING APPARATUS

• US 20160049239A1
• Filed: 03/19/2014
• Published: 02/18/2016
• Est. Priority Date: 04/12/2013
• Status: Active Grant

• Current Assignee: Nittoku Engineering Co., Ltd
• Original Assignee: Nittoku Engineering Co., Ltd
• Inventors: SUGIMOTO, Shinji
• Granted Patent: US 9,704,645 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01F 41/04 for manufacturing coils coils for transformer or inductances H01F27/28
• CPC Class Codes: H01F 41/064 Winding non-flat conductive wires, e.g. rods, cables or cords
• CPC Class Codes: H01F 41/082 Devices for guiding or positioning the winding material on the former

Abstract

A coil manufacturing apparatus 10 includes: a nozzle configured to feed a wire; a take-up jig configured to take up, through rotation, the wire fed from the nozzle; a cylindrical inner cutter tube that is provided coaxially with the take-up jig and is configured to rotate together with the take-up jig, the cylindrical inner cutter tube comprising a first slit that is formed so as to extend in an axial direction, the first slit being configured that the wire is inserted through; and an immovable outer cutter tube that is provided so as to be superimposed on an outside of the cylindrical inner cutter tube, the immovable outer cutter tube comprising a second slit that is formed so as to extend in the axial direction, the second slit being configured that the wire is inserted through.

Claims

1. A coil manufacturing apparatus, comprising:

a nozzle configured to feed a wire;

a take-up jig configured to take up, through rotation, the wire fed from the nozzle;

a cylindrical inner cutter tube that is provided coaxially with the take-up jig and is configured to rotate together with the take-up jig, the cylindrical inner cutter tube comprising a first slit that is formed so as to extend in an axial direction, the first slit being configured that the wire is inserted through; and

an immovable outer cutter tube that is provided so as to be superimposed on an outside of the cylindrical inner cutter tube, the immovable outer cutter tube comprising a second slit that is formed so as to extend in the axial direction, the second slit being configured that the wire is inserted through.

2. The coil manufacturing apparatus according to claim 1, further comprising:

a wire retaining mechanism configured to draw and retain the wire from the nozzle by a length corresponding to a predetermined number of turns; and

a rotary mechanism configured to rotate the nozzle or the wire retaining mechanism around the take-up jig,

wherein the rotary mechanism is configured to rotate the nozzle or the wire retaining mechanism in a direction that is the same as a rotational direction of the take-up jig at a speed higher than a rotational speed of the take-up jig so that both the wire fed from the nozzle and the wire retained by the wire retaining mechanism are taken up around the take-up jig.