JP2003309955A - Winding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify replacement of the wire guide for a winding apparatus. <P>SOLUTION: A flier 5, provided rotatably about a fixed shaft 3 fixed to a fixing stand, is rotated by a toothed belt. An inner shaft 4 is provided rotatably within the fixed shaft and is coupled with a flier, using a U-shaped plate, at the axial end face on the side of its motor core. A wire guide 8 is supported relatively rotatably on the inner shaft, and it is put in a stationary state to the fixed shaft, being magnetically attracted by magnets 16 and 17. Since the wire guide is put in a stationary state by magnetic attraction force, the wire guide can be removed and new one can be attached at replacement, so that this coil winder is satisfactory in exchange work efficiency. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device.

[0002]

2. Description of the Related Art For example, in Japanese Unexamined Patent Application Publication No. 2002-27714, a flyer shaft is rotatably supported by a main body of the apparatus, a wire insertion passage is provided at an axis of the flyer shaft, and an end portion in an axial direction of the flyer shaft is provided. A winding device with an integrated flyer is shown. Further, the wire guide holding member is rotatably supported by the main body of the apparatus, and the flyer shaft and the wire guide holding member are separately belt-driven and rotated in synchronization, and the wire guide holding member makes the wire guide freely rotatable. By supporting it, the wire guide is kept stationary.

[0003]

Further, for example, Japanese Patent Laid-Open No. Sho 5
In the winding device disclosed in Japanese Laid-Open Patent Publication No. 6-166748, the spindle is integrally supported in order to keep the spindle and the wire guide in a stationary state (immovable state) so that the spindle and the wire guide do not rotate together during winding. A first rotary shaft and a second rotary shaft that integrally supports the wire guide are provided, and a wire guide stationary mechanism having a gear structure is provided between the two so that the wire guide is stationary.

However, in the above winding device,
Not only is there a large number of parts such as gears of the wire guide stationary mechanism for stationary wire guide, but also when replacing the wire guide due to model change etc., it is necessary to replace it by reattaching it after removing the wire guide stationary mechanism. There was a problem that it took a lot of time.

[0005]

In order to solve the above problems and to realize a winding device in which the wire guide can be replaced easily, in the present invention, the rotation about the fixed axis is performed. And a wire guide for guiding the wire fed from the flyer with the rotation of the flyer into the core slot of the motor core fixedly supported by the motor support means. In the winding device, the magnetic attraction means is provided between the axial end faces of the wire guide and the fixed shaft, which face each other, in order to keep the wire guide stationary.

According to this, when the wire guide is exchanged for a motor core having a different shape due to a model change or the like, it suffices to remove the wire guide against the magnetic attraction force. The wire guide can be removed, and the exchange time of the wire guide can be shortened.

[0007] In particular, according to the fact that the wire guide and the fixed shaft are provided with a gap between the axial end faces of the wire guide and the fixed shaft which face each other, the wire guide and the fixed shaft are passed through the flyer. Even if a gap is provided between the axial end faces of the wire facing each other, the magnetic attraction force acts between them, so there is no inconvenience in keeping the wire guide stationary, and the wire rotation axis When it is passed through, the flyer can be easily passed through the gap.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail based on specific examples shown in the accompanying drawings.

FIG. 1 is a fragmentary front view of a winding device to which the present invention is applied, and FIG. 2 is a fragmentary plan view of the winding device. A block-shaped fixed stand 1 is erected on a fixed base (not shown), and a motor core 2 to be wound is located at a predetermined position on the side of the fixed stand 1. The motor core 2 has a motor shaft 2a.
Is held by a motor shaft support device (not shown) in a fixed state. Although only one side of the motor core 2 is shown in the figure, it is possible to arrange the same structure on the opposite side to perform winding at the same time, and illustration and description thereof will be omitted.

On the side surface of the fixed stand 1, a fixed shaft 3 whose axis is directed to the motor core 2 side is fixed by a screw in a protruding state. The fixed shaft 3 is formed in a cylindrical shape having an axial through hole at its axis. Inside the through hole of the fixed shaft 3, an inner shaft 4 is supported coaxially and rotatably at a proper position by a bearing.

On the outer periphery of the fixed shaft 3, a flyer body 5a is rotatably provided at a proper position by a bearing. The flyer body 5a is integrally provided with a flyer arm 5b that extends obliquely outward so as to face the motor core 2 from a part of its outer peripheral surface. In this way, the flyer 5 is constructed. A toothed pulley 5c is formed on the fixed stand 1 side of the flyer main body 5a, and a toothed belt 6 for connecting to a drive pulley of a drive motor (not shown) is wound around the toothed pulley 5c. There is.

The inner shaft 4 is coaxially formed with a protrusion 4a which protrudes from the end surface of the fixed shaft 3 on the motor core 2 side toward the motor core 2 side by a predetermined amount. The protrusion 4a is provided with, for example, a bearing portion 7 in which a plurality of bearings are aligned and assembled, and the body portion of the wire guide 8 is fitted to the bearing portion 7. Therefore, the wire guide 8 is rotatably supported relative to the inner shaft 4.

Further, an axial hole is formed coaxially in the axial center of the inner shaft 4 so as to open to the fixed stand 1 side and reach a position corresponding to the end surface of the fixed shaft 3 on the motor core 2 side. There is. A wire guide pipe 9 as a wire insertion passage is coaxially inserted into the axial hole on the fixed stand 1 side, and a guide pulley 10 is rotatably provided on the motor core 2 side in the axial hole. Further, the wire guide pipe 11 is also mounted on the fixed stand 1 so as to be coaxially located corresponding to the wire guide pipe 9.

The wire W to be wound around the motor core 2 is drawn out from a wire storage portion (not shown) and guided by the wire guide pipes 11 to guide the wire guide pulley 1.
It reaches 0. The wire W runs substantially coaxially with the axis of the inner shaft 4 until reaching the wire guide pulley 10, and is directed by the wire guide pulley 10 toward the outer side in the substantially radial direction of the inner shaft 4. The wire W whose direction is changed by the wire guide pulley 10
Is guided by a plurality of wire guide pulleys 5d and 5e provided on the flyer arm 5b, and reaches the motor core 2.

In this winding device, the flyer 5 provided on the outer periphery of the fixed shaft 3 is rotated, and the wire W inserted through the inner shaft 4 provided in the through hole of the fixed shaft 3 is flyered. Since the wire guide pulley 10 guides the flyer 5 and the inner shaft 4, the flyer 5 and the inner shaft 4 are connected and synchronized by the connecting means.

In this illustrated example, as shown in FIG. 3 as well, a U-shaped groove 13 is formed in the inner shaft 4 so as to surround the axis thereof, and a portion having a shape complementary to the U-shaped groove 13 is formed. The U-shaped plate 14 is used as a bridging member having. As a result, in the mounting state shown by the solid line in the figure, the bottom surfaces of the pair of linear grooves of the U-shaped groove 13 and the linear portions of both arm portions of the U-shaped plate 14 are engaged with each other around the axis of the inner shaft 4. Can be combined. In this way, the rotation direction engaging means is configured.

The U-shaped plate 14 has a U-shaped groove 1
3 is attached so as to be inserted in a direction orthogonal to the axis of the inner shaft 4 as shown by an arrow A in FIG. In the mounted state, the lengths of both arm portions in the U shape of the U-shaped plate 14 reach the flyer main body portion 5a, and the free ends of both arm portions are attached to the flyer main body portion 5a by screws 15. It is fixed. Therefore, when the flyer main body 5a rotates, for example, as shown by the arrow B in FIG. 3, the U-shaped plate 14 is integrally formed.
Rotates about the axis of the inner shaft 4, and the rotational force of the flyer body 5a is transmitted to the inner shaft 4 by the above engagement of the U-shaped plate 14 and the U-shaped groove 13.

As described above, the inner shaft 4
The body portion of the wire guide 8 is fitted to the bearing portion 7 mounted on the protruding portion 4a. As shown by the arrow in FIG. 4, the wire guide 8 is set in the bearing portion 7 in the axial direction to set the wire guide 8. The inner diameter D1 of the bearing hole 8a of the wire guide 8 is set to be slightly larger than the outer diameter D2 of the bearing portion 7 (D1> D2), and the bearing hole 8a has a play enough to be inserted into and removed from the bearing portion 7. It is fitted.

The fixed shaft 3 and the wire guide 8 are arranged so as to face each other with a gap between the respective axial end faces. The gap is the wire guide 8
In the set state, the contact position between the axial bottom surface of the bearing hole 8a and the axial end surface of the protrusion 4a is set.
Further, as shown in FIG. 3, a plurality of magnets 16 forming a magnetic attraction means are arranged at intervals in the circumferential direction on the axial end surface of the fixed shaft 3. The axial end surface of the fixed shaft 3 and the axial end surface of the flyer body 5a are located on the same plane.

In the axial end face of the wire guide 8 facing the fixed shaft 3, in the illustrated example, the magnets 16 corresponding to the magnets 16 are circumferentially spaced at the same intervals in use. A plurality of magnets 17 constituting the attraction means are arranged. The facing magnets 16 and 17 are a combination of magnetic poles that are magnetically attracted to each other. As a result, the wire guide 8 is magnetically attracted to the fixed shaft 3 and held in a stationary state. Further, either one may be made of a magnetic material.

Then, the toothed belt 6 is driven by the drive motor.
Winding the motor core 2 by combining the step of rotating the flyer 5 via the wire to hang the wire W on the tongue of the commutator 2b using the tongue cover 12 and the step of winding the wire W in the core slot of the motor core 2. I do.

At this time, the wire W is pulled out from the inner shaft 4 to the flyer 5 through the gap between the axial end faces of the fixed shaft 3 and the wire guide 8. Even if such a gap is provided, no problem occurs because the wire guide 8 and the fixed shaft 3 are magnetically attracted.

Further, as described above, the inner shaft 4
The flyer 5 and the flyer 5 are connected by using the U-shaped plate 14, and the inner shaft 4 is engaged with the linear groove portion of the U-shaped groove 13 thereof, and the flyer 5 is screw-coupled to each other, so that the rotation direction is changed. Is engaged with. Therefore,
Easy attachment / detachment of the flyer 5 and good maintainability.

Further, the wire guide 8 is connected to the fixed shaft 3 by a magnetic attraction force, so that when the wire guide 8 is replaced with another wire guide by changing the model of the motor core, the wire guide 8 resists the magnetic attraction force. It suffices to remove the guide 8 and not to loosen or tighten the screws.
The replacement work is easy. The wire guide 8 is supported by the protrusion 4a of the inner shaft 4 via the bearing portion 7, but as described above, the fitted state may be loose fitting, and the mounting / removing work is easy. Is.

Further, in the case where the wire guide is stationary by using a gear mechanism as in the conventional example, there is eccentricity due to rattling of the gear structure, and the wire guide is highly accurate with respect to the core slot. There was a problem that it could not be positioned. On the other hand, according to the present invention, since the wire guide 8 is held stationary with respect to the fixed shaft 3, the wire guide 8 can be positioned with high accuracy, and thus the slot opening width is small. Winding of the motor core can be easily performed.

[0026]

As described above, according to the present invention, since the wire guide is made stationary by the magnetic attraction force,
When replacing the wire guide, it can be easily removed and installed, so replacement work is easy. Furthermore, since the gear mechanism is not used for the stationary mechanism of the wire guide,
The installation space is not required, and the axial length can be made significantly shorter than that of the conventional device, so runout during rotation is suppressed and the moment of inertia is also reduced, enabling high-speed start-up and high-speed rotation. The winding work time can be shortened and productivity can be improved.

[Brief description of drawings]

FIG. 1 is a fragmentary front view of a winding device to which the present invention is applied.

FIG. 2 is a fragmentary plan view of the winding device of FIG.

FIG. 3 is an end view of the fixed shaft and the flyer taken along the line III-III in FIG.

FIG. 4 is a fragmentary partial fragmentary view showing a mounting procedure of a wire guide.

[Explanation of symbols]

1 Fixed stand 2 motor core 3 fixed axis 4 Inner shaft 5 flyers 6 toothed belt 7 Bearing 8 wire guide 9 Wire guide pipe 10 Guide pulley 13 U-shaped groove 14 U-shaped plate 16 ・ 17 Magnet

Claims (2)

[Claims] 1. A core of a motor core fixedly supported by a motor supporting means, the flyer being provided so as to pay out a wire while rotating around a fixed axis, and the wire being paid out from the flyer as the flyer rotates. A wire winding device having a wire guide for guiding into the slot, wherein at least one of axial end faces of the wire guide and the fixed shaft facing each other is magnetic in order to make the wire guide stationary. A winding device characterized in that suction means is provided. 2. The gap for passing the wire through the flyer is provided between the axial end faces of the wire guide and the fixed shaft which face each other. Winding device.