JPH0647434B2 - Winding device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for automatically winding a toroidal core or the like.

2. Description of the Related Art In recent years, technological advances in electronic devices have been remarkable, and their fields of use have been expanding steadily.

Above all, the toroidal core is widely used as various inductance components and the like.

However, since the toroidal core itself has an annular shape and forms a closed magnetic circuit, winding cannot be inserted, winding is difficult, and winding work is troublesome.

II Object of the Invention The present invention is to provide a winding device that enables winding of a conductor wire around a more compact toroidal core, and that can perform automatic winding at a uniform and high speed.

III DISCLOSURE OF THE INVENTION Such an object is achieved by the present invention described below.

That is, according to the present invention, since one end portion of the conductive wire arranged on one surface side of the core is pierced through the core inner hole portion to the other surface side of the core, the reciprocating motion is performed through the inner hole portion of the core. The knitting rod to be performed and one end of the conductor wire pierced on the other surface side are moved to one surface side of the core by rotating the outer peripheral surface of the core, and the conductor wire is wound around the core. A hook having an inner gripping locking surface having a width substantially equal to the diameter of the conductor wire and a curvature substantially equal to the curvature of the conductor wire, and the opening and closing of the open end of the hook. A winding device having a tongue for guiding the conducting wire to the hook when the conducting wire is gripped, and the receiving rod having a clip for clamping the conducting wire by a spring force.

IV Specific Structure of the Invention Hereinafter, the specific structure of the present invention will be described in detail.

As shown in FIGS. 1 to 6, the winding device 1 of the present invention includes a knitting rod 2 as a piercing means and a receiving rod 3 as a winding means.

In this winding device, the knitting rod 2 is hooked on a conducting wire 5 arranged on one surface side of the toroidal core 4 to make the toroidal core 4
Of the toroidal core through the inner hole of the toroidal side and pierce to the other surface side, and the receiving rod 3 grabs this and rotates to the outer peripheral side of the toroidal core. Thus, the conductor wire 5 is wound.

As shown in FIGS. 1 to 6, the knitting rod 2 is installed perpendicular to the magnetic path of the toroidal core 4 and normally moves up and down.

The tip of the knitting rod 2 has a hook 21 as a gripping and locking portion, and the conducting wire 5 can be gripped and locked and pulled up.

The hook 21 is integrated with or fixed to the main body of the knitting rod 2.

The width of the inside of the hook 21 is preferably made substantially equal to the diameter φw of the conducting wire 5, as shown in FIG. 7.

In addition, the curvature inside the tip of the curved portion is made substantially equal to the curvature of the conducting wire 5. As a result, the number of accidents in which the conductor 5 is dropped becomes extremely small. In addition, the open end of the hook 21 has a conductive wire 5
Is so sized that it can enter the inside of the hook 21.

This ensures that the conducting wire 5 is gripped or locked.

Further, in combination with the hook 21, a tongue 23 is provided at the tip of the knitting rod 2 to provide an opening / closing mechanism for the grip portion. Due to this opening / closing mechanism, the accidental disconnection of the conducting wire 5 is further reduced. Further, since it also functions as a guide when gripping the conducting wire, accidents of failing to grip when using the conducting wire 5 having a small diameter are reduced.

In the example shown in FIG. 7, the tongue 23 is attached to the base of the hook 21 so as to be rotatable, and is further locked to the stopper 25 provided at the base of the hook 21.

The tongue 23 is locked by the stopper 25 at a position where the hook 21 is closed, and at this time, the tip portion has a diameter φw of the conductor wire 5.
It is configured to project from the open end of the hook 21 by the above distance.

Therefore, when the knitting rod 2 passes through the inner hole portion of the toroidal core 4 and the hook 21 comes into contact with the conductor wire 5 arranged on the lower surface side of the toroidal core 4, the conductor wire 5 pushes up the tongue 23 and from the open end of the hook 21. It enters the inside of the hook and is gripped or locked there.

FIG. 8 shows another structural example of the knitting rod.

The example shown in FIG. 8 differs from the example shown in FIG. 7 in that the rotatable tongue 23 as an opening / closing mechanism is
The tongue 23 is made of a leaf spring, and the stopper 25 is omitted by utilizing the restoring function of the spring.

As described above, the knitting rod 2 preferably has the hook 21 as a grip locking portion for gripping or locking the conducting wire 5, and more preferably has the tongue 23 as an opening / closing mechanism thereof. The knitting rod 2 itself reciprocates so as to penetrate the inner hole of the toroidal core 4, for example, moves up and down.

As described above, the knitting rod 2 passes through the inner hole portion of the core and descends, for example, where the conducting wire is locked to the hook 21, and then the knitting rod 2 ascends and returns to its original position and stops.

The vertical movement of such a knitting rod is performed by a known driving method.

Next, as shown in FIG. 5, the conducting wire 5 pierced through the toroidal core inner hole portion and standing still above the toroidal core portion is sandwiched by a clip 31 attached to the tip of the receiving rod 3 and grasped or pinched. The position where the clip 31 sandwiches the conductive wire is determined by the length of the conductive wire that remains unwound.

The receiving rod 3 is a winding means for winding one end of the conducting wire 5 pierced through the inner hole around the outer peripheral surface of the core and winding it around the original core surface side.

Then, as the grip portion, FIGS. 1 to 6, FIG. 9,
It has a clip 31 as shown in FIG.

The clip 31 shown in FIGS. 1 to 6 is formed by bending a leaf spring, and the elasticity of the clip 31 allows the conductor wire 5 to be bent.
It is a clip for holding.

The clip 31 shown in FIG. 9 is composed of a clip half body 311 provided on the receiving rod main body and a movable clip half body 315 which is rotatable relative to the clip half body 311 and is attached to the base of the clip half body 311. Both clip halves 311, 31
5 has a guide portion 317 for introducing a conducting wire at the tip in a closed state, and the movable clip half body 3 is provided from this guide portion 317.
The lead wire 5 is introduced by unfolding the lead wire 15, and the lead wire 5 is gripped at the base of the clip.

Further, the clip 31 shown in FIG. 10 is configured by attaching two leaf springs to each other, and has a guide portion at the tip as in the example shown in FIG. 9, and holds the conducting wire 5 at the base portion. It is a thing.

In addition, in these clips 31, the size of the base portion that holds the conductor wire 5 is substantially the same as the diameter φw of the conductor wire 5. Further, the guide portion 317 has a shape that substantially matches the conducting wire 5.

Various structures can be used as the gripping structure of the receiving rod 3, but the gripping reliability cannot be obtained without these clip types.

The clip 3 of the receiving rod 3 as such winding means
1 After grasping the wire 5 of the wire, the outer periphery is rotated so as to unwind the wire to the outside of the toroidal core, and the wire moves to the lower surface side of the toroidal core in the figure and stands still.

In this way, from the state as shown in FIG. 1, the conducting wire is hooked and held by the knitting rod 2 that has descended, penetrates through the toroidal core 4, and then is wound once by the receiving rod 3 until it stands still. Assuming that the series of operations of 1 is one step, the winding around the toroidal coil is completed by repeating this several steps. Here, the number of steps is equal to the number of turns of the coil, and by increasing the number of steps, it is possible to wind the toroidal core in any number of layers.

In the present invention, it is necessary to change the winding position of the conductive wire around the toroidal core for each process. For that purpose, for example, the following method is used.

1) As shown in FIG. 11, when the knitting rod 2 moves in the vertical direction and the rotational movement surface of the receiving rod 3 slightly rotates about the vertical direction.

2) As shown in FIG. 12, when the toroidal core 4 slightly rotates in the horizontal plane, the knitting rod 2 moves in the vertical direction, and the receiving rod 3 rotates in the vertical plane.

In any case of 1), 2), etc., the winding interval is determined by the correlation between the rotation speed and the speed of one step. The winding device of the present invention is provided with the number of rotations 1) and 2) above,
It is possible to select the process speed and the number of processes,
These can be appropriately determined according to the application of the toroidal coil.

Such rotation of the receiving rod 3 and rotation of the toroidal core are driven by a known method.

The toroidal core 4 shown in FIG. 1 to FIG. 6 serves as a magnetic core of inductance such as a coil, and its shape is
It has a ring shape.

In this case, although it has a circular ring shape in the drawing, it may have an oval shape, a rectangular shape, or the like, and may have a gap. Further, the cross-sectional shape of the core is a rectangle in the illustrated one, but it may be another circle, an ellipse, or the like.

The size of the toroidal core applied to the present invention is usually about 0.5 mm to 2.0 mm in outer diameter and 0.3 mm to 1.5 mm in inner diameter.
The height is about 0.1 mm to 1.0 mm.

Ferromagnetic materials such as ferrite, permalloy, sendust, and amorphous metal are used as the material of the toroidal core.

The conducting wire 5 shown in FIGS. 1 to 6 is usually an annealed copper single wire. For insulation and protection, a polyurethane resin,
The coating may be made of a resin such as polyester resin.

The length of the conductor wire 5 is determined by the number of turns of the conductor wire. The diameter φw of the conducting wire 5 is usually about 0.02 mm to 0.2 mm.

IV Specific Action of the Invention In the present invention, first, the conductor 5 is arranged on one surface side of the toroidal core 4 while being held by the receiving rod 3, and the knitting rod 2 is installed on the other surface side of the toroidal core 4. (First
Figure).

Then, the knitting rod 2 gradually descends, penetrates through the inner hole of the toroidal core 4, and the tongue 23 of the hook 21 at the tip of the knitting rod 2 contacts the conducting wire 5 (Fig. 2).

Further, when the lead wire pushes up the tongue 23 and is gripped and locked by the hook 21 (Fig. 3), the knitting rod 2 rises to pull up the lead wire, and is pierced through the toroidal core inner hole (Fig. 4). ), And then stands still above (Fig. 5).

Then, the receiving rod 3 advances from the lateral direction toward the conducting wire 5 gripped and locked above the toroidal core (FIG. 5). Then, the clip 31 of the receiving rod 3 grips the conducting wire 5 (FIG. 5).

Further, the receiving rod 3 rotates so as to unwind the conducting wire to the outside of the toroidal core, moves to the lower surface side of the toroidal core, and stands still. In this state, the conducting wire is wound around the toroidal core once. The clip holds the conductive wire until the hook 21 hooks the conductive wire 5 next time.

After one winding is completed, the position where the conductive wire 5 is wound around the toroidal core 4 is usually changed. This is to rotate the toroidal core 4 minutely (Fig. 11),
This is performed by slightly rotating the rotating surface of the receiving rod 3 (Fig. 12).

Such a series of operations are sequentially repeated, and when the target number of turns is reached, the winding of the toroidal coil is completed.

V. Specific Effect of the Invention According to the winding device of the present invention, it is possible to cope with winding around toroidal cores of various sizes over a wide range of applications, and it is possible to wind around a particularly small toroidal core type coil.

Further, the manufacturing of the toroidal coil is automated, and accurate and uniform winding can be performed at high speed.

Furthermore, the winding interval and the number of windings can be freely determined and selected, which is convenient depending on the application of the coil.

In addition, according to the winding device of the present invention, the conductor wire can be wound without damage.

[Brief description of drawings]

1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6 are perspective views showing the operation steps of the winding device of the present invention. FIG. 7 and FIG. 8 are partial front views showing an example of the structure of the knitting rod. 9 and 10 are partial front views showing a structural example of the receiving rod. 11 and 12 are perspective views showing the operation of the winding device of the present invention. Explanation of symbols 1 ... Winding device, 2 ... Knitting rod, 21 ... Hook, 23 ... Tongue, 3 ... Receiving rod, 31 ... Clip, 4 ... Toroidal core, 5 ... Conductor wire

Claims (1)

[Claims] 1. In an apparatus for winding a core, one end of a conductor wire arranged on one surface side of the core is pierced through the core inner hole portion to the other surface side of the core, so that the inner hole of the core is formed. And a knitting rod that reciprocates through the portion and one end of the conductor wire pierced on the other surface side is moved around the outer peripheral surface of the core to one surface side of the core, and the conductor wire is wound around the core. Therefore, it has a receiving rod that rotates around the outer periphery of the core, the knitting rod, a hook having an inner grip locking surface having a width substantially equal to the diameter of the conductor wire, and a curvature substantially equal to the curvature of the conductor wire, A winding device having a tongue that opens and closes the open end of the hook and guides the conducting wire to the hook when gripping the conducting wire, and the receiving rod has a clip that clamps the conducting wire by a spring force.