JPH0653066A - Winding machine for ring core - Google Patents

Abstract

PURPOSE:To make possible a winding of a ring core at high speed and on a constant tension by a method wherein a winding machine for the ring core is provided with a plurality of traverse rollers, which are made to abut on the outer peripheral surface of the ring core and are rotatably driven, and the winding machine is provided with work tables, which are respectively capable of adjusting properly the positions of these traverse rollers. CONSTITUTION:Three pieces of traverse rollers 2 abutting on the outer peripheral surface of a ring core 1 are respectively provided rotatably on three pieces of work tables 3. These rollers 2 are coupled with an AC servo motor 6 for traverse roller rotation use via intermediate gears 4 and 5 and the rollers 2 are rotated by the driving force of the motor 6. A slide shaft 7 is screwed into the tables 3 in such a way that the tables 3, which are respectively provided with each traverse roller 2, can be moved in the horizontal direction and this slide shaft 7 is rotated by a stepping motor. This stepping motor is moved and the core 1 is moved by a control device in such a way that a winding part of the core 1 is arranged in the centers of ring gear head devices 10a, 10b, 10c and 10d.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a toroidal transformer,
The present invention relates to a winding device for a ring core used for a noise filter, a motor coil or the like.

[0002]

2. Description of the Related Art Conventionally, a winding device for a ring core is
As disclosed in Japanese Patent Laid-Open No. 1-278710 filed by the present applicant, a traverse roller device for rotationally driving a ring core, a wound winding wheel having a notch, and a rotation having a notch on the outer circumference of the winding wheel. And a winding guide roller attached to the winding wheel, and an electric wire attached to the winding wheel at a position projecting from the side surface of the winding wheel beyond the outer peripheral surface of the winding wheel and being drawn out from the winding wheel to the winding guide roller. The ring gear head device is composed of a storage line guide roller for guiding the coil, and as shown in FIGS. 1 and 6 of the prior application, the winding portion of the ring core is slightly closer to the winding wheel and the storage ring. It is arranged inside and the electric wire is wound in this state.

As for the winding of the electric wire, as shown in FIG. 6 of the prior application, when the winding wheel and the storage wheel are rotated, the electric wire inside the winding guide roller is wound around the ring core and the excess electric wire is removed. It is stored in the circumferential groove of the storage wheel. In addition to fluctuations in the rotation speed of the winding wheel, the electric wire is pulled during the process in which the winding guide roller moves away from the ring core, so the storage wheel rotates faster than the winding wheel. To keep the tension of the wire constant by promoting the supply of
Also, in the process in which the winding guide roller approaches the ring core,
Since the electric wire is loosened, the storage wheel is rotated at a lower speed than the winding wheel, and the storage wheel is rotated faster than the winding wheel by the amount of winding to the ring core, so that the tension of the electric wire is constant.

[0004]

In the example of this prior application, the winding ring and the storage ring have the same size, and the ring core is mounted at a fixed position near the ring side surface of the winding ring and the storage ring cutout. Therefore, when the ring core is set and wound, a step of moving the winding guide roller away from the ring core and a step of moving the winding guide roller away from the ring core occur. For this,
Depending on the size of the ring core, the distance between the winding guide roller and the apple core will change from a maximum 20 times difference to a difference of about 1.5 times. Therefore, large-scale tension control is applied to give a certain amount of tension to the winding wire. I had to do it.

This tension control detects the change in the tension of the wire acting on the electric wire during winding, and detects the tension rotation angle by the rotation angle of the winding wheel guide roller. The tension rotation angle determines the rotation speed of the storage wheel. The rotation speed is controlled to a high speed or a low speed to make it constant, and the rotation of the storage wheel is instantaneously changed with respect to the rotation speed of the winding wheel by the tension rotation angle and the size of the ring core. The speed was changed 6 times from low speed to high speed during one rotation (360 °) of the winding wheel. For this reason, in the tension detection and tension control, the rotation speed control of the servo motor must be instantaneously performed with high accuracy with respect to the tension rotation angle detected by the tension detection.

Therefore, the present invention has been made in view of the above reasons.
In order that the center of the ring core winding portion is located at the center of the winding wheel and the payout wheel, even if the size of the ring core changes, the ring gear head device can be wound to the ring core in accordance with the size of the ring core as small as possible. A is automatically replaced, and the feeding wheel is driven according to the speed of the winding wheel by the distance between the ring core and the winding guide pulley during winding. To provide a highly accurate ring core winding machine that enables winding at a constant tension at a higher speed by operating the C servo motor by length control and pattern control, and solves the problems of tension detection and tension control. is there.

[0007]

SUMMARY OF THE INVENTION The ring core winding machine according to the present invention has a turret device rotatably provided with a plurality of ring gear head devices at appropriate positions. A winding wheel that is freely provided, a feeding wheel that is rotatably provided on the outer peripheral surface of the winding wheel, and an inner ring gear that is formed on the inner peripheral surface of the winding wheel meshes with each other. The winding wheel drive gear rotated by the C servo motor and the outer ring gear formed on the outer peripheral surface of the feeding wheel mesh with each other. A feeding wheel drive gear that is rotationally driven by a C servo motor, a winding guide pulley that is provided on a side surface of the winding wheel and that winds an electric wire, and a position that is protruded from a side surface of the winding wheel beyond an outer peripheral surface of the feeding wheel. A feeding guide pulley for guiding the electric wire drawn from the feeding wheel to the winding guide pulley is provided, and the feeding guide pulley is in contact with the outer peripheral surface of the ring core. It is to have a plurality of traverse rollers that are driven to rotate by a C servo motor, and to have a work table that can appropriately adjust the position of each traverse roller.

[0008]

Therefore, an appropriate one is selected from a plurality of ring gear head devices according to the size of the ring core around which the electric wire is wound, and a work table provided with a traverse roller for abutting the ring core is driven, The winding portion of the ring core is arranged at the center of the ring gear head device,
The length variation between the guide pulley and the ring core and the tension fluctuation of the wound electric wire can be suppressed to a small extent, and the above problems can be achieved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 5, three traverse rollers 2 contacting the outer peripheral surface of the ring core 1 are rotatably provided on the three work tables 3. The traverse roller 2 is connected to an AC servomotor 6 for rotating the traverse roller via intermediate gears 4 and 5, and the driving force of the servomotor 6 rotates the traverse roller 2.

The work table 3 provided with the traverse rollers 2 has a slide shaft 7 screwed onto the work table 3 so as to be movable in the horizontal direction, and the slide shaft 7 is rotated by a stepping motor 8. The stepping motor 8 is moved so that the winding portion of the ring core 1 has the following ring gear head devices 10a, 10b, 10c, 10d.
It is operated by a pre-programmed control device (not shown) so as to be arranged at the center of.

The turret device 11 having the ring gear head devices 10a, 10b, 10c and 10d shown in FIGS. 1 and 5 is rotatably attached to a body (not shown) by a central shaft 13, and the size of the ring core 1 is appropriately adjusted. When input, it is selectively operated by a control device (not shown).

The ring gear head device 10a, 10b, 10c, 10d shown in FIGS. 1, 2 and 3 is provided with a winding wheel 15 which is rotated through the inner space of the ring core 1 at the tip of the gear head body 14. A feeding wheel 16 is rotatably provided on the outer peripheral surface of the winding wheel 15. The winding wheel 15 and the payout wheel 16 are made as small as possible in accordance with the winding portion of the ring core 1.

The delivery wheel 16 is also rotated through the inner space of the ring core. As shown in FIGS. 1 and 2, an inner ring gear 17 is formed on the inner peripheral surface of the winding wheel 15, and three winding wheel drive gears 18 are meshed with the inner ring gear 17 to form the winding wheel drive gear. A rotating shaft 19 is not shown in FIG.
It is driven to rotate by a servo motor.

An outer ring gear 20 is formed on the outer peripheral surface of the feeding wheel 16, and the feeding wheel drive gear 2 of the outer ring gear 20 is formed.
1 is meshed, and the rotation shaft 22 of the feed wheel drive gear 21 is also rotationally controlled by an AC servomotor (not shown).
The winding wheel 15 and the feeding wheel 16 have a cutout portion 2 in a part thereof.
4 is provided, and the winding wheel 15 and the feeding wheel 16 are inserted into the inner space of the ring core 1 from the notch 24.

As shown in FIGS. 1 and 2, a winding guide pulley 2 for engaging the electric wire connected to the ring core 1 and winding the electric wire on the ring core 1 on the side surface of the winding wheel 15.
5 is rotatably supported by a screw 26, and as shown in FIGS. 1 and 3, the base end portion of a mounting plate 28 is fixed to the side surface of the feeding wheel 16 by a screw 27, and the tip of the mounting plate 28 is fixed. A feeding guide pulley 30 is rotatably fitted to the portion by a screw 29.

The flange portion 31 of the feeding wheel 16 is attached to a position projecting from the outer peripheral surface of the flange portion 31, and the circumferential groove 3 of the feeding wheel 16 is attached.
The electric wire fed from 2 to the feeding guide pulley 30 and then to the winding guide pulley 25 is guided.

The electric wire fed to the winding guide pulley 25 reaches the circumferential groove 32 of the feeding wheel 16 from the winding wire input side guide pulley 34 through the guide nozzle 35 and the guide pulley 36 with the reverse movement prevention.

Next, the operation of this embodiment will be described. First, when mounting the ring core 1, when the size of the ring core 1 is input to a control device (not shown), the turret device 11 rotates in the ring core 1 and the ring gear head devices 10a, 10b, 10c, 10d are selected. . After that, the traverse work table 3 mounted on the ring core 1 is moved by the rotation of the stepping motor 8 and set at an appropriate position.

When the setting is completed, the AC servo motor controls the traverse roller 2 in close contact with the winding, including the winding thickness. The traverse roller 2 rotationally drives the ring core 1, and the AC servo motor drives the winding wheel drive gear 18. Also, the winding wheel 15 and the feeding wheel 16 are independently controlled in rotation through the gears 17 and 20 meshing with the feeding wheel drive gear 21. In this way, the winding wheel 15 on the inner peripheral side and the feeding wheel 16 on the outer peripheral side, which are inserted into the inner space of the ring core 1 in the winding, can control the length by the size of each ring core and the speed of the winding wheel. It is controlled by the program of interlocking control of pattern control.

Then, as shown in FIG.
Is supplied from the reel 41 having a taper to the circumferential groove 32 of the delivery wheel 16 via a guide pulley 42 rotatably supported by a tension arm, and from the delivery guide pulley 30 provided on the winding wheel 15. It is clamped to the winding clip 43 from below the ring core 1 via the winding guide pulley 25.

Since the winding wheel 15 and the payout wheel 16 are small in size in accordance with the ring core 1, when the winding wheel 15 and the payout wheel 16 operate to wind,
The electric wire 40 inside the winding guide pulley 25 is wound around the ring core 1 as indicated by the alternate long and short dash line. The electric wire that is slightly left near the end of winding is the circumferential groove 32 of the feeding wheel 16.
Is stored in. The peripheral groove 32 of the feeding wheel 16 is provided by the feeding guide pulley 30 protruding from the outer peripheral surface of the feeding wheel 16.
The operation of supplying the electric wire 40 from the electric wire 40 to the winding guide pulley 25 is smoothly performed.

When the winding wheel 15 is wound at a constant rotation speed, the winding guide pulley 25 causes the ring core 1 to rotate.
The winding wheel 15 is driven so that the supply speed of the electric wire can follow the length and speed of the electric wire 40 wound around the winding A. C. Servo motor and feeding wheel 16 are driven. C. Servo motor is interlocked with control, and drive of feed wheel 16 is performed. The C servomotor is controlled by an angle and a speed, and thereby the payout speed of the payout wheel 16 is controlled by variable speed rotation by both length control and pattern control.

Specifically, the electric wire 40 is always wound at the center of the winding portion of the ring core 1, but the lengths of the four corner portions and side surface portions of the ring core 1 in one turn winding are long. 16 so that it can respond to changes in
Of the ring core 1 by feeding out the electric wire 40 by controlling the feeding motor of
On the other hand, the winding can be performed with constant tension control.

Regarding the rotational speed of the traverse roller 2, as the inner diameter of the ring core 1 becomes smaller due to the progress of winding, the ring core 1 rotates at a gradually increasing speed,
Further, the AC servo motor is controlled so that the inside / outside diameter overweight control traverse is performed. The control of the winding wheel 15 and the payout wheel 16 is executed by program-inputting the length control and the pattern control, and changes the speed control of the traverse roller 2 with respect to the winding and the winding with a constant tension on the ring core 1. In case of winding speed, ring core 1
The winding specifications such as the size, the number of turns, the winding pitch, etc. are input to the microcomputer and calculated by the microcomputer.
A control signal is output to the C servo motor, and A. The C servo motor is operated by length, pattern control and traverse roll weight control.

[0025]

According to the present invention, which ring gear head device is used is determined by the size of the ring core. Therefore, unlike the conventional case, winding is not performed at a position deviated from the ring gear center, and winding work can be performed easily and smoothly. Further, the winding portion of the ring core is arranged at the center of the ring gear head device, so that the tension fluctuation rate of the electric wire at the time of winding can be made small, and thus the stress applied at the time of winding can be made small.

[Brief description of drawings]

FIG. 1 is a front view of a winding machine of the present invention.

FIG. 2 is an enlarged cross-sectional view near the winding guide pulley of the same.

FIG. 3 is an enlarged cross-sectional view of the vicinity of the above-mentioned delivery guide pulley.

FIG. 4 is an explanatory diagram illustrating a winding operation of the above.

FIG. 5 is a plan view showing the vicinity of a traverse position of the above winding machine.

[Explanation of symbols]

 1 Ring Core 2 Traverse Roller 3 Work Table 10 Ring Gear Rod 11 Turret Device 15 Winding Ring 16 Feeding Wheel 25 Winding Guide Pulley 30 Feeding Guide Pulley 40 Electric Wire

Claims (1)

[Claims] 1. A rotatably provided turret device having a plurality of ring gear head devices at appropriate positions,
This ring gear head device meshes with a winding wheel rotatably provided, a feeding wheel rotatably provided on the outer peripheral surface of the winding wheel, and an inner ring gear formed on the inner peripheral surface of the winding wheel. A. The winding wheel drive gear rotated by the C servo motor and the outer ring gear formed on the outer peripheral surface of the feeding wheel mesh with each other. A feeding wheel drive gear that is rotationally driven by a C servo motor, a winding guide pulley that is provided on a side surface of the winding wheel and that winds an electric wire, and a position that is protruded from a side surface of the winding wheel beyond an outer peripheral surface of the feeding wheel. A feeding guide pulley that guides the electric wire drawn from the feeding wheel to the winding guide pulley is provided, and the feeding guide pulley contacts the outer peripheral surface of the ring core. A ring core winding machine comprising a plurality of traverse rollers which are rotationally driven by a C servo motor and having a work table capable of appropriately adjusting the positions of the traverse rollers.