JPH11238643A - Toroidal coil winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive coil winding machine capable of easily, orderly and quickly winding up a coil, even for a toroidal coil which uses an especially thick wire material and allowed to be applied to various dimensions. SOLUTION: A toroidal coil winding machine for forming a toroidal coil by winding up a wire material 3 around a toroidal core 2 is provided with a grasping jig 4, having at least three core pressing catches 5 or more for grasping the core 2 horizontally from an outer peripheral side face direction almost at equal angular intervals and is constituted, so that the leg of at least one core pressing catch 5 is slidable in the diametrical direction of the core 2, and the jig 4 is fitted rotatobly around the center axis of the toroidal core 2 as a rotational axis.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a toroidal coil winding machine for manufacturing a toroidal coil by winding a wire around a toroidal core.

[0002]

2. Description of the Related Art Conventional toroidal coil winding machines are roughly divided into the following two methods depending on the method of winding a wire around a toroidal core.

First, a first method is to penetrate a storage ring called a shuttle into a central hole of a toroidal core, and in that state, store and wind a wire in advance in the storage ring. This is a method in which a wire is wound around a toroidal core while a wire is pulled out from the coil to produce a coil.

In this case, the toroidal core has an angle of 120 degrees.
The structure is such that the roller is rotated at the same time as being suppressed by the driving roller from each direction, and is often used in automatic winding machines, but the equipment becomes expensive.

Another method is used for winding a wire around a toroidal core having a large diameter with a thick wire. A wire having a required length is cut in advance and one end of the wire is prepared. Is wound by hand while penetrating through the central hole of the toroidal core.

[0006]

In the above-described procedure of the conventional toroidal coil winding machine, first, in the winding machine using the storage ring, the storage ring and the toroidal core are rotated. A complicated structure is required, and furthermore, it is necessary to store the required amount of wire in the wire storage ring in advance, assuming the required length of the wire, which is troublesome and wastes wire. In particular, in the case of a thick wire, the storage ring for storing the wire is structurally large, the driving mechanism is complicated, and the device is expensive.

[0007] When winding a thick wire, a hook similar to a knitting hook is passed through the center hole of the toroidal core, and the thick wire is hooked on the hook at the upper part, and the wire is manually wound down. Since it is difficult to wind the wire around the toroidal core evenly,
Skill was required, such as rotating the toroidal core horizontally at a constant speed. Further, in manufacturing a toroidal coil using a thick wire, it is necessary to smoothly hold and rotate the toroidal core, and a complicated and expensive mechanism is required for automation.

[0008] That is, an object of the present invention is to provide an inexpensive winding machine that can easily and orderly wind even a toroidal coil using a particularly thick wire and can be applied to various dimensions.

[0009]

According to the present invention, the following means have been obtained in order to solve the above-mentioned problems.

That is, the present invention relates to a toroidal coil winding machine which forms a toroidal coil by winding a wire around a toroidal core, wherein the toroidal core is gripped horizontally at substantially equal angular intervals from the outer peripheral side direction.
A holding jig having at least one core holding claw and being slidable at least at one or more locations in the diametrical direction of the toroidal core, wherein the holding jig has a central axis of the toroidal core. This is a toroidal coil winding machine that is rotatably mounted as a rotating shaft.

Further, the present invention provides a gripping jig provided with a plurality of core holding claws, wherein the center rotating shaft portion is a pipe-shaped hollow shaft, and a hook-shaped guide rod is passed through the hollow portion of the hollow shaft. And hook the wire on the notch of the hook-shaped guide bar,
The toroidal coil winding machine is configured to be slidable from one direction of the central axis of the toroidal core to the opposite side.

Further, the present invention provides a structure in which the core holding claw for gripping the toroidal core from the outer peripheral side surface has a U-shape, and the U-shaped portion of the core holding claw is replaced depending on the size of the toroidal core. A toroidal coil winding machine according to any one of the above.

[0013]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an external perspective view of the vicinity of a gripping jig of a toroidal winding machine according to an embodiment of the present invention. FIG.
1 is an external perspective view of a toroidal coil used in an embodiment of the present invention. FIG. 3 is an external perspective view of a core holding claw used in the winding machine according to the embodiment of the present invention. FIG. 4 is an external perspective view illustrating another example of the core pressing claw used in the winding machine according to the embodiment of the present invention.

As shown in FIGS. 1 to 4, in the toroidal coil winding machine of the present invention, when the wire 3 is wound around the toroidal core 2 to form a toroidal coil, the toroidal core 2 is moved from the outer peripheral side direction. Hold at least three or more core holding claws 5 that are held horizontally and at substantially equal angular intervals, and
The holding jigs 4 having three or more core holding claws 5 are mounted so as to be able to slide in the diametrical direction of the toroidal core 2, and the holding jig 4 having three or more core holding claws 5 is rotated about the center thereof as a rotation axis. It is configured to be possible.

Further, the rotating shaft portion of the gripping jig 4 having the plurality of core holding claws 5 is a hollow shaft 9 having a pipe shape, and a hook-shaped guide rod 10 is passed through the hollow portion of the hollow shaft 9. The hook-shaped guide rod 10 is moved from the upper surface of the toroidal core 2 to
It was configured to slide down.

The tip of the core holding claw 5 for gripping the toroidal core 2 from the outer peripheral side surface is formed in a U-shape, and the core holding claw portion having the U-shaped portion is formed according to the size of the toroidal core.
This is a toroidal coil winding machine with a replaceable structure.

The toroidal core 2 is horizontally held and provided with a rotatable gripping jig 4 having a hook-like guide rod 10 at the center thereof.
, The wire 3 is hooked and wound around the toroidal core 2, so that the working efficiency can be improved with a simple mechanism.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 is an external perspective view of a gripping jig of a main part of the toroidal coil winding machine as described above. FIG.
1 is an external perspective view showing a toroidal coil used in an embodiment of the present invention.

As shown in FIG. 2, the toroidal coil 1
The wire 3 is wound around the toroidal core 2 at substantially equal angular intervals. Although only one winding is shown in FIG. 2, the present invention can be similarly applied to a toroidal coil having a plurality of windings.

As shown in FIG. 1, the main part of the toroidal coil winding machine of the present invention is such that three core holding claws 5 are formed on a rotating disk 7 at every circumferential angle of 120 °, and a toroidal core winding machine is provided. 2 is gripped from the outer peripheral side direction. Of the three columns 6 of the core holding claw 5, only one column 61 is slidable in the diameter direction of the toroidal core 2.

A square hole 12 is formed in the turntable 7, and the square hole 12 serves as a guide for sliding the column 61, and a spring 13 is connected between the column 61 and the central shaft 9. . In FIG. 1, the support 61 is always pulled toward the center by the spring 13 although it is located behind the turntable 7. The tensile force of the spring 13 also contributes to gripping the toroidal core 2.

A hole is formed at the center of the rotating disk 7, and a pipe-shaped hollow shaft 9 is vertically fixed to the hole. The turntable 7 is rotatable about the hollow shaft 9. Further, a hook-shaped guide bar 10 can be slid vertically in the hollow portion of the hollow shaft 9.

That is, the notch-shaped guide rod 10 has a cutout portion 11 formed therein.
However, when the wire 3 is slid to the uppermost end, the wire 3 is hooked on the notch 11 and slid downward. When the wire 3 arrives at the lower end of the toroidal core 2, the wire 3 is removed from the notch 11, and the wire 3 is removed. Wrap it along the side.

The work of winding so as to attach this side surface is a manual operation. During this time, the turntable 7 rotates around the hollow shaft 9 by a predetermined angle. Thereby, the coil is wound uniformly over the entire circumference of the toroidal core 2.

In addition to the method in which the hook-shaped guide bar 10 is slid in the hollow portion of the hollow shaft 9, the hook-shaped guide bar 10 is inserted obliquely into the space above the rotary plate 7, and the wire rod is inserted into the cutout portion 11. 3 can be hooked and wound around the toroidal coil 2.

FIG. 3 shows a core holding claw 5 used in the holding jig 4 of the toroidal coil winding machine of the present invention shown in FIG.
It is an external appearance perspective view of. The core holding claw 5 requires a certain strength in terms of material, and glass epoxy or the like is suitable.

The core holding claw 5 has a U-shaped portion 8.
However, in order to grip the toroidal core, they are prepared according to the dimensional specifications of the toroidal core, and are configured to be exchanged according to the dimensions of the core.

FIG. 4 shows another example of a core holding claw 14 suitable for a large toroidal core. Core holding claw 1 on pillar 18
4 are formed, and the claw portion 15 at the tip is
A can be separated at the position of A and the coupling portion 16B, and the claw portion 15 can be replaced according to the dimensional specification of the toroidal core 2. The retaining pin 17 is for fixing the claw portion 15. The plurality of columns 18 are screwed to the turntable 7, but at least one of the columns is movable because of the set of the toroidal core 2.

[0031]

As described above, since the wire is wound while holding and rotating the toroidal core by using a plurality of core holding claws, the winding operation is efficient. In addition, since the core holding claw can be replaced according to the dimensional specification of the toroidal core, it can be easily applied to many types of toroidal cores, it can also be applied to winding large wires on large cores, simple structure Therefore, it can be supplied at low cost.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a periphery of a gripping jig of a toroidal winding machine according to an embodiment of the present invention.

FIG. 2 is an external perspective view of a toroidal coil used in the embodiment of the present invention.

FIG. 3 is an external perspective view of a core holding claw used in the winding machine according to the embodiment of the present invention.

FIG. 4 is an external perspective view showing another example of the core holding claw used in the winding machine according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 toroidal coil 2 toroidal core 3 wire 4 gripping jig 5, 14 core holding claw 6, 18 column 7 turntable 8 U-shaped portion 9 hollow shaft 10 hooked guide bar 11 cutout portion 12 square hole 13 spring 15 claw portion 16A, 16B Coupling part 17 Fastening pin 19 Center axis 20 Center hole

Claims (3)

[Claims] 1. A toroidal coil winding machine for forming a toroidal coil by winding a wire around a toroidal core, wherein the toroidal core is disposed horizontally from an outer peripheral side direction.
It has at least three or more core holding claws gripped at substantially equal angular intervals, and at least one or more core holding claws,
A toroidal coil winding machine, comprising: a gripping jig configured to be slidable in the diameter direction of the toroidal core, wherein the gripping jig is rotatably mounted around a central axis of the toroidal core as a rotation axis. . 2. A hollow jig provided with a plurality of core holding claws, wherein a center rotating shaft portion is a hollow shaft having a pipe shape, and a hook-shaped guide rod is passed through the hollow portion of the hollow shaft. 2. The toroidal coil winding machine according to claim 1, wherein the wire rod is hooked on the notch portion of the guide rod, and is slidable from one direction of the central axis of the toroidal core to the opposite side. 3. A structure in which a core holding claw for gripping a toroidal core from an outer peripheral side surface has a U-shape, and the U-shaped portion of the core holding claw is exchanged according to the size of the toroidal core. A toroidal coil winding machine according to claim 2.