JPH06151222A - Toroidal coil winding method and winding machine - Google Patents

Abstract

PURPOSE:To obtain a polyphase toroidal coil with which a lead wire can be formed easily. CONSTITUTION:After a split coil 4-1 has been formed by winding a wire material 9 in the prescribed number of turn by rotating an annular core 1 to the winding position where it matches to the split coil 4-1, the procedure to form the other split coil 4-2, which constitutes the same phase by winding in the direction reverse to the unidirection in the prescribed number of turn by rotating the annual core 1 to the winding position which matches to the above-mentioned split coil 4-1, is conducted simultaneously on a plurality of phases. As a result, the wire material is cut after it has been wound in excess of one turn for the purpose of securing a lead-out wire and the length of the wire-end part of the wire material necessary for the after-treatment, and as a result, the man- hours for the work required for unwinding can be saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toroidal coil winding method and a winding machine for manufacturing a split winding toroidal coil in which a wire is split and wound around an annular core.

[0002]

2. Description of the Related Art As a winding machine for manufacturing a toroidal coil in which a wire is wound around an annular core, a winding mechanism for rotating the circumference of the annular core while supplying the wire and rotating the annular core in its circumferential direction. It is known that an annular core drive mechanism and a control means for controlling the drive speed of the annular core by the annular core drive mechanism are known.

When a wire rod is uniformly wound around an annular core by such a winding machine, both the rotation speed of the winding mechanism and the driving speed of the annular core may be made constant. In order to manufacture a so-called split-winding toroidal coil, which differs in the circumferential direction of the annular core, it is necessary to control either or both of the rotation speed of the winding mechanism and the driving speed of the annular core.

FIG. 6 is an explanatory view of a split winding toroidal coil winding machine according to the prior art, in which 1 is an annular core for winding a split winding toroidal coil, 2 is a shuttle ring, and 3 is a shuttle ring.
Is a core feed roller, 3'is a core pressing roller, 5 is a storage wire ring for holding a wire to be wound, 6 is a core feed motor for rotationally driving the annular core 1, and 7 is a storage wire for rotationally driving the storage wire ring 5. A ring drive motor, 8 is a shuttle ring drive motor that rotationally drives the shuttle ring 2, 10 is an electromagnetic clutch that changes the drive force transmission between the storage line ring drive motor 7 and the storage line ring 5, 11 and 15 are drive gears, 80 Is a rotary encoder for detecting the rotation angle of the shuttle ring drive motor 8, and 20 is a control circuit.

The annular core 1 rotates the core feed roller 3 by means of the drive gear 61 fixed to the core feed motor 6 and the driven gear 62 of the core feed roller 3, and the core feed roller 3 and the core pressing roller 3'are made to rotate. It is driven to rotate by contact.
The control circuit 20 includes a microcomputer 21 and a storage unit 2.
2, an interface 23, an encoder interface 24, a motor drive circuit 25, and a core motor drive circuit 26.

7 and 8 are explanatory views of a toroidal coil wound by the toroidal winding machine of FIG. In FIG. 6, prior to winding the wire around the annular core 1, the wire storage ring 5 stores and holds the wire. To store this wire rod, first, the wire rod is wound around a wire rod hooking jig (not shown) to turn on the electromagnetic clutch 10, and the rotational drive force from the storage ring drive motor 7 is transmitted to the control circuit 20. The storage wire ring 5 is rotated by a predetermined amount in response to a command, and the amount of wire required for coil winding is stored in the storage wire ring 5.

Next, the wire rod extending to a wire rod supply source (not shown) is cut, the wire rod is hung on the wire rod guide 5a, and the cut end is fixed to the stud 1a of the annular core 1 to give an appropriate tension to the winding of the wire rod. A current value is set in the electromagnetic clutch 10.
Then, the shuttle ring 2 is rotated by the shuttle ring drive motor 8 while rotating the annular core 1 by the core feed motor 6. Since the shuttle ring 2 intersects the annular core 1, the wire rod is wound around the annular core 1 once (one turn) when the shuttle ring 2 makes one revolution.

At this time, if the rotational speed of the annular core 1 and the rotational speed of the shuttle ring 2 are kept constant, a toroidal coil having a uniform winding density can be manufactured as shown in FIG. However, in order to manufacture the split winding toroidal coil in which the winding density of the wire material is alternately dense and dense as shown in FIG. 8, the shuttle ring drive motor 8 and the core feed motor 6
It is necessary to periodically change the rotation speed ratio (synchronization ratio) of the wire rod during the winding of the wire.

Therefore, the control circuit 20 is provided with a motor drive circuit 25 for driving the storage ring drive motor 7 and the shuttle ring drive motor 8 and a core motor drive circuit 26 for driving the core feed motor 6 which is a pulse motor. Also,
A rotary encoder 8 that extracts a speed detection pulse train corresponding to the rotation speed of the shuttle ring drive motor 8.
0 is set.

The pulse train output from the rotary encoder 80 is input to the microcomputer 21 via the encoder interface 24 and the microcomputer interface 23, and the rotation speed ratio (synchronization ratio) between the shuttle ring drive motor 8 and the core feed motor 6 is input.
Is periodically changed during the winding of the wire. The storage unit 2
2 stores a winding program of a coil pattern according to the specifications of the toroidal coil. In this program, the command value of the speed and the number of turns (the number of turns) that are output at each fixed sampling cycle are described.

This command value is given to the motor drive circuit 25 via the interface 23 to control the rotation of the shuttle ring drive motor 8. On the other hand, as the shuttle ring drive motor 8 rotates, a pulse train corresponding to the rotation speed is output from the rotary encoder 80 installed on the shaft, and this pulse train is input to the microcomputer 21. The encoder interface 24 has a counter function and temporarily holds the input pulse train.

The microcomputer 21 refers to the value held in the encoder interface 24 every sampling period, and calculates the difference from the previous reference value. A value proportional to the calculated difference value is given to the motor drive circuit 25 via the interface 23 as a new output value. A value obtained by accumulating the values held in the encoder interface 24 (shuttle ring position counter value) corresponds to the current rotation angle of the shuttle ring.

Therefore, when the accumulated value and the reference value corresponding to the number of turns match, the output value becomes zero and the shuttle ring drive motor 8 stops. As a result, the microcomputer 21 can control the rotation angle of the shuttle ring 2. On the other hand, in the storage unit 22, the number of drive pulses of the core motor corresponding to the rotation amount of the core motor 6 that drives the annular core 1 is described in advance in accordance with the value of the shuttle ring position counter. It should be noted that, here, not all the values of the position counter of the shuttle ring 2 corresponding to the output of one drive pulse of the core feed motor 6 are described, but the method of setting the period of the drive pulse of the core feed motor 6 is set. Then, the value of the position counter of the shuttle ring 2 when the change of the cycle occurs and the new set value of the cycle are described.

With the above construction, the speed of the core motor can be changed at any position of winding the wire, and the toroidal coil wound at any position can be manufactured. The prior art relating to this type of split winding toroidal coil winding machine and its control method is disclosed in Japanese Patent Laid-Open No. 3-2.
08319, JP-A-3-104717, JP-A-54-29045, JP-A-55-11967.
No. 2 and Japanese Patent Laid-Open No. 58-23728.

Further, as a toroidal coil winding machine for winding a wire on a toroidal core in both forward and reverse directions, the wire rod is stored in advance when the shuttle ring rotates forward and reversely. A structure which cannot be unraveled is disclosed in Japanese Patent Publication No. 62-7105.

[0016]

In the conventional winding machine described above, when a toroidal coil of a so-called star connection of split winding as shown in FIG. 9 is wound, the wire is once wound as shown in FIG. After that, the wire rods at the boundaries of the windings are cut and then unwound, and the lead-out terminal wires 19-1, 19-2 to 19-5 and 19-6 as shown in FIG.
And these lead lines 9-1, 9-2 to 9-5,
It was necessary to connect 9-6 in a predetermined pattern to form the star connection coil shown in FIG.

However, it is necessary to secure a length of the cut end of the wire rod for a post-treatment such as the predetermined connection, and in consideration of the length, one extra turn is wound. After that, I cut it and took measures such as unwinding it. Therefore, there is a problem that extra man-hours are required, the annular core 1 is damaged when the wire rod is cut, and the characteristics of the motor are deteriorated when the annular core 1 is incorporated into a motor.

Further, although FIG. 9 shows the case where the number of divided coils is 6, when the number of divided coils is as large as 12, for example, the wire is further wound on the wire to be cut, and There has been a problem that the work of unwinding the drawn out terminal line becomes more difficult. In the conventional winding machine, for example, it is necessary to rotate the annular core twice in order to wind a coil of three phases (U, V, and W phases), and the structure of the winding machine and its control are complicated. There was also the problem of being.

The object of the present invention is to solve the above-mentioned problems of the prior art, to facilitate the formation of a lead wire, and to minimize the amount of rotation of the annular core, and to minimize the amount of rotation of the annular core. It is an object of the present invention to provide a toroidal coil winding method and a winding machine that enable simultaneous winding of wires.

[0020]

In order to solve the above problems, according to the present invention, a number of shuttle rings corresponding to the number of phases to be wound are installed on an annular core, and windings of coils forming each phase are provided. It is characterized in that control is performed to reverse the winding direction of the wire material corresponding to the switching so that the split coils of each phase are wound at the same time.

That is, in the toroidal coil winding method according to the first aspect of the present invention, as shown in FIG. 1, the toroidal coil winding is formed by winding the wire 9 around the annular core 1 to form a multi-phase toroidal coil. In the method, while rotating the annular core 1 at a predetermined moving speed according to the winding density, the wire rod 9 is wound in one direction by a specified number of turns to form one split coil 4-1 which constitutes the same phase. After forming
The wire rod 9 is rotated while rotating the annular core 1 to a winding position of the other split coil that is paired with the one split coil 4-1 to rotate the annular core 1 at a predetermined moving speed according to the winding density. Is wound in a direction opposite to the one direction for a prescribed number of turns to form the other split coil 4-2 which forms the same phase, and is simultaneously executed for a plurality of phases.

The toroidal coil winding machine according to the second aspect of the present invention, as shown in FIG.
Wire for winding multi-phase toroidal coil 9-
A plurality of shuttle rings 2-1 corresponding to the number of phases arranged so as to rotate while intersecting with the positions of the respective phases of the multiphase of the annular core 1 by guiding 1,9-2,9-3. -2
2-3, shuttle ring drive motors 8-1, 8-2, 8-3 in which the plurality of shuttle rings are rotatable in one direction and in a direction opposite to the one direction, and the annular core 1
A core feed motor 6 for driving a core feed roller 3-1 for rotating the wire rod to a wire winding speed and a coil winding position,
The rotation of the core feed motor 6 is controlled to the wire rod winding speed, and after winding of one split coil constituting the same phase of the toroidal coil, it is paired with the one split coil of the annular core 1. The position is moved to a position of a predetermined shuttle ring around which the split coils forming the same phase are wound, and the shuttle ring drive motors 8-1, 8-2,
And a control circuit 20 for controlling so as to wind 8-3 in a direction opposite to the wire winding direction of the one split coil to wind the other split coil constituting the same phase of the toroidal coil around the annular core 1. It is characterized by having.

Further, in the toroidal coil winding machine according to the present invention as defined in claim 3, as shown in FIG. 5, the annular core is wound around the annular core 1 to guide a wire material forming a multiphase toroidal coil, and the annular core is guided. A plurality of shuttle rings 2-1, 2-2, 2-3 corresponding to the number of phases and arranged so as to intersect and rotate at the positions of the respective ones of the above polyphases, and the plurality of shuttle rings. Shuttle ring drive motors 8-1, 8 rotatable in one direction and in the opposite direction
-2, 8-3 and the core feed roller 3-1 for rotating the annular core 1 to the wire winding speed and the coil winding position.
A core feed motor 6 for driving the same, and the same number of storage ring rings 5-as the shuttle rings that rotate in synchronization with the plurality of shuttle rings 2-1, 2-2, 2-3 when the wire is wound.
1, 5-2, 5-3 and storage line ring drive motors 7-1, 7-2, 7- for simultaneously driving the plurality of storage line rings.
3 and the plurality of storage ring 5-1, 5-2, 5-3
Drive gears 12-1, 12-2, 1 that mesh with the inner circumference of the
2-3, electromagnetic clutches 10-1, 10-2, 10- for connecting the drive gear and the storage ring drive motor.
3, and the rotation of the core feed motor 6 is controlled to the wire winding speed, and after one split coil constituting the same phase of the toroidal coil is wound, the split coil of the annular core 1 The paired positions are moved to a predetermined shuttle ring position around which the split coils forming the same phase are wound, and the shuttle ring drive motors 8-1, 8 are moved.
-2, 8-3 is rotated in a direction opposite to the wire winding direction of the one split coil to wind the other split coil constituting the same phase of the toroidal coil around the annular core 1 so as to wind the shuttle ring. Drive motors 8-1, 8-2, 8--
3, core feed motor 6, accumulator ring drive motor 7-1,
7-2, 7-3 and the electromagnetic clutches 10-1, 10
-2, 10-3 and a control circuit 20 for controlling.

The number of split coils of each phase constituting the toroidal coil is arbitrary, and the same toroidal coil as described above is wound by setting the rotational movement amount of the annular core according to the number of the coils. be able to.

[0025]

According to the structure of the invention described in claim 1, the length of the end wire portion of the wire rod required for securing the lead wire and the post-treatment such as the winding, which has been conventionally generated, is secured. For this reason, it is possible to eliminate the man-hours for the work of cutting the wire rod after winding it one turn many times and unwinding it. Further, since it is not necessary to cut the wire on the annular core, there is no possibility of damaging the annular core.

Further, according to the structure of the invention of claim 2, when the star connection is automatically wound around the toroidal coil, one turn is added to secure the end wire portion necessary for the post-treatment. The steps of cutting the wire and unwinding the wire are not required, and the annular core is not damaged when the wire is cut, and the reliability of the annular core is improved. Further, in the production of a three-phase six-divided coil, in the conventional apparatus, it was necessary to rotate the annular core two times before the winding was completed, whereas in the present invention, two-thirds of the rotation was required, and the winding time was increased. Shortened.

Further, according to the structure of the invention of claim 3, in order to wind the three-phase six-divided coil, it was necessary to repeat dense → coarse six times in the conventional winding device. According to the invention, it suffices to wind densely → closely → densely. In addition, in the conventional device, the rotary encoder that detects the rotation of the shuttle ring drive motor in the middle of winding according to the surface state of the outer periphery of the annular core while winding the wire. However, according to the present invention, the annular core completes the winding in one-third of the conventional rotation, while the relationship between the number of pulses and the actual position of the core is incorrect. In addition, the winding time is reduced to one third, and the accuracy deviation is reduced, and the winding accuracy is improved.

[0028]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an explanatory view of one embodiment of a toroidal coil winding method according to the present invention, showing an embodiment applied to winding of a three-phase six-division coil type toroidal coil, (a) (b) (c) Indicates the winding order of the wire in this order.

In the figure, 1 is an annular coil, 1a to 1
f is a stud set in the annular coil 1, 4-1 and 4-
2 is a wound split coil, 9 is a wire rod, a large arrow is a rotation or rotational movement direction of the annular core 1, a small arrow is a winding direction of the wire rod 9, A, B and C are first phase, second The position of each phase shuttle ring that winds each phase and third phase coil is shown. Here, the winding operation of the wire rod by the shuttle ring for the first phase winding at the position A will be described, but the shuttle rod for the second phase and the third phase winding at the positions B and C will be described. The winding operation is similar.

First, FIG. 1 (a) shows the winding start of the wire on the annular core 1. At this time, the annular core 1 rotates in the direction of the large arrow at a predetermined moving speed according to the winding density and is not shown. The first-phase shuttle ring rotates at the position of the wire rod 9 so as to wind the wire rod 9 in the front-to-back direction at the center of the annular core 1 perpendicular to the plane of the drawing. After winding the specified number of turns, the shuttle ring is stopped, and while the wire rod 9 is being fed along the stud, the annular core 1 is rotationally moved in the direction of the large arrow to move to the position shown in FIG. When it reaches the split coil winding position paired with, the rotational speed changes from the rotational movement to a predetermined moving speed according to the winding density, and the shuttle ring rotates in the direction opposite to the above-described rotation direction to wind the wire. When the split coil 4-2 finishes winding with a specified number of turns, the first
, The shuttle ring stops, and the state shown in FIG.

At this time, the shuttle rings for the second-phase and third-phase windings are located at positions B and C in the figure, and perform the same operation as described above. Therefore, in the conventional winding machine, the winding is completed in two-thirds of the rotation, while the annular core 1 is rotated three times. The shuttle ring for winding each phase and the rotation and rotational movement of the annular core 1 are synchronously controlled in a predetermined relationship.

Thus, in order to secure the lead wire and the length of the end wire portion of the wire material necessary for the post-treatment such as the winding, which has been conventionally generated, after winding one turn many times. It is possible to eliminate the man-hours for cutting the wire and unraveling it. Further, since it is not necessary to cut the wire on the annular core, there is no possibility of damaging the annular core. Figure 2
Is an explanatory view of one embodiment in which the toroidal coil winding device according to the present invention is applied to a winding machine of a three-phase six-division coil type toroidal core, in which 1 is an annular core, 1a to 1f are studs, 2-1, 2-2 and 2-3 are shuttle rings and 3-1
Is a core feeding roller, 3-2 and 3-3 are core pressing rollers,
4-1, 4-2, 4-3 are storage line frames, 6 is a core feed motor, 8-1, 8-2, 8-3 are shuttle ring drive motors, 9-1, 9-2, 9-3. Is a wire rod, 11-1, 11-
2, 11-3 are shuttle ring drive gears, 14-1, 1
4-2 and 14-3 are drive shafts of a shuttle ring motor for driving the shuttle ring drive gear, and 20 is a control circuit.

Each of the above three constituent parts constitutes a winding mechanism of each phase of three phases, and since they are the same,
Here, only the one-phase winding mechanism will be described. In the figure, the shuttle ring 2-1 is provided with teeth that mesh with the shuttle ring drive gear 11-1 on the outer peripheral portion. Therefore, when the shuttle ring drive motor 8-1 that drives the shuttle ring rotates, the rotational force is generated by the drive shaft 14-1.
→ shuttle ring drive gear 11-1 → shuttle ring 2
-1, and shuttle ring 2-1 rotates.

FIG. 3 is a side view for explaining the construction of the storage line piece to which the shuttle ring is attached.
Has a bearing 41-1 fitted therein, and is freely rotatable about a shaft 40-1 fixed to the shuttle ring 2-1. The wire rod 9-
A wire rod storage groove 13-1 for storing 1 is provided, and a wire rod 9-
1 is wound on the storage wire piece 4-1 in the pre-winding step of the winding.

Returning to FIG. 2, the shuttle ring 2-1 is arranged so as to intersect with the annular core 1. For this crossover, a part of the circumference of the shuttle ring (not shown) is removed, the circumference of the annular core 1 is inserted from there, and the part of the circumference of the removed shuttle ring is united as it is. The shuttle ring is provided with a notch in advance, and the annular core 1 is inserted from there.

The annular core 1 is supported by a core feeding roller 3-1 and is pressed by core pressing rollers 3-2 and 3-3, and is fixed at a right angle to the shuttle ring 2-1. The core feed roller 3-1 is rotated by the core drive motor 6, and the core pressing rollers 3-2 and 3
-3 is free to rotate because it has a structure in which a bearing is fitted inside.

A wire rod 9-drawn from the storage line piece 4-1
The tip of 1 is fixed to a stud or the like of the annular core 1.
When the shuttle ring 2-1 is rotated so as to cross the annular core 1, the wire rod 9-1 is sequentially drawn out from the storage wire piece 4-1 and wound around the annular core 1. At this time, the control circuit 2
With 0, the circular core 1 can be tightly wound by rotating the annular core 1 by the amount of one turn of the wire 9-1 while the shuttle ring 2-1 makes one rotation. This operation is performed by shuttle rings 2-2 and 2-3 corresponding to each phase.
A toroidal coil in which the required coil is wound is formed by repeating the above procedure.

That is, as described with reference to FIG. 1, the control circuit 20 controls the rotation of the core feed motor 6 to the wire rod winding speed, and at the same time, one of the split coils 4 constituting the same phase of the toroidal coil. After winding -1, the position of the annular core 1 paired with the one split coil is moved to the position of the shuttle ring 2-1 around which the split coil forming the same phase is wound, and the shuttle ring is driven. The motor 8-1 is rotated in a direction opposite to the wire winding direction of the one split coil so as to wind the other split coil 4-2 constituting the same phase of the toroidal coil around the annular core 1. .

The structure and operation of this control circuit 20 are shown in FIG.
Since it is almost the same as that described in the above, further description will be omitted. FIG. 4 is a perspective view of a toroidal coil wound by the winding machine of the above embodiment, which is 90-1 to 90-
Reference numeral 6 indicates a lead wire of the divided winding of each phase. According to this embodiment, when the star connection coil winding is automatically performed on the toroidal coil, the wire material is cut and unwound by winding one turn more to secure the end wire portion necessary for the post-treatment. Process is unnecessary, the annular core is not damaged when the wire rod is cut, and the reliability of the annular core is improved. Further, in the production of a three-phase six-divided coil, in the conventional device, it was necessary to rotate the annular core three times before the end of the winding, whereas in the present invention, two-thirds of the rotation is required and the winding time is increased. Shortened.

FIG. 5 is an explanatory view of another embodiment in which the toroidal coil winding device according to the present invention is applied to a winding machine of a three-phase six-division coil type toroidal core, and the same symbols as in FIG. Correspondingly, 5a, 5b, 5c are wire rod drawing tools,
5-1, 5-2, 5-3 are storage ring, 7-1, 7-
2, 7-3 are storage ring motors, 10-1, 10-2,
10-3 is an electromagnetic clutch, 12-1, 12-2, 12-
3 is a drive gear, and 15-1, 15-2 and 15-3 are wire rod storage grooves. Note that the shuttle ring, the storage ring, and the like have the same configuration for the windings of each phase, and their operations are also the same. Therefore, only the configuration portion in charge of the winding of one phase will be described below.

In the figure, prior to winding the wire around the annular core 1, the wire is stored in the storage ring 5-1. To store the wire rods in the storage line 5-1 first store the storage ring 5-
The tip of the wire rod is hooked and fixed to the wire rod hooking portion (not shown) of No. 1 and the electromagnetic clutch 10-1 is turned on so that the power generated by the storage ring drive motor 7-1 is transmitted, and the control is performed. The storage ring 5-1 rotates by a predetermined amount according to a command from the circuit 20. As a result, the wire rod required for winding the coil of the predetermined number of turns of the one-divided coil is wound up and stored in the wire rod storage groove 15-1 from the wire rod supply source (not shown).

Next, the wire rod is cut between the wire rod supply source and the cut tip is fixed to an appropriate portion of the annular core 1 (for example, one of the studs), and the electromagnetic clutch 10-1 is connected to the coil. The electromagnetic clutch 10-1 is supplied with a predetermined current value that gives the wire a tension suitable for winding. Then, the shuttle ring drive motor 5 rotates the shuttle ring 2-1 while rotating the annular core 1 by the core feed motor 6.

Since the shuttle ring 2-1 intersects with the annular core 1, when the shuttle ring 2-1 makes one revolution,
The wire is wound around the annular core 1 for one turn. At this time, the ratio of the rotational speeds of the shuttle ring drive motor 8-1 and the core feed motor 6 (synchronization ratio) can be changed during the winding of the wire rod to wind the wire rod densely. Since the configuration and operation of the control circuit 20 are substantially the same as those described in FIG. 6, further description will be omitted.

Conventionally, in order to wind a split coil as shown in FIG. 4, it has been necessary to repeat dense → six times six times.
According to the present embodiment, it is only necessary to wind dense → ancestor → dense. Also,
The position of the annular core 1 is managed by a rotary encoder (see FIG. 6) attached to the core feed motor 6 and controlled by the control circuit 20, but the surface of the outer periphery of the annular core 1 is wound while the wire is being wound. Depending on the state, the relationship between the number of pulses of the rotary encoder and the actual position of the core is changed during winding, and it is difficult to control the position accuracy. On the other hand, according to the winding machine of the present embodiment, since the rotation of the annular core 1 is completed by one-third of the conventional rotation, the coil winding time is ⅓.
In addition, the winding accuracy can be improved by reducing the deviation of the accuracy.

In this embodiment, the case where the number of shuttle rings is three has been described, but the same effect can be obtained by using two or four or more shuttle rings.

[0046]

As described above, according to the present invention,
In order to secure the lead wire and to secure the length of the end wire portion of the wire material required for post-processing such as winding, cut the wire material after winding one turn, and then remove it. Can be eliminated. Further, since it is not necessary to cut the wire on the annular core, there is no possibility of damaging the annular core.

Further, for example, in the manufacture of a three-phase six-division coil,
In the conventional device, it was necessary to rotate the annular core twice before the end of winding, whereas in the present invention, two-thirds of the rotation is sufficient, and the winding time is shortened. Furthermore, in order to wind a three-phase six-divided coil, for example, in the conventional winding machine, it was necessary to repeat the dense → coarse winding operation six times, but in the present invention, the dense → coarse → dense winding is performed. In addition, the relationship between the number of pulses of the rotary encoder that detects the rotation of the shuttle ring drive motor in the middle of winding and the actual position of the core is incorrect due to the surface condition of the outer circumference of the annular core during the winding of the wire. While it was difficult to control the position accuracy, according to the present invention, since the annular core completes the winding in one-third round of the conventional one, the winding time becomes one-third, and It is possible to provide a toroidal coil winding machine that solves the drawbacks of the prior art, such as accuracy deviation being reduced and winding accuracy being improved.

[Brief description of drawings]

FIG. 1 is a method 1 of winding a toroidal coil according to the present invention.
It is explanatory drawing of an Example.

FIG. 2 shows a toroidal coil winding device according to the present invention.
Applied to a winding machine of phase 6 split coil type toroidal core 1
It is explanatory drawing of an Example.

FIG. 3 is a side view illustrating the configuration of a storage wire piece to which a shuttle ring is attached.

FIG. 4 is a perspective view of a toroidal coil wound by a winding machine according to an embodiment of the present invention.

FIG. 5 shows a toroidal coil winding device according to the present invention.
It is explanatory drawing of the other Example applied to the winding machine of the phase 6 split coil type toroidal core.

FIG. 6 is an explanatory view of a split winding toroidal coil winding machine according to a conventional technique.

FIG. 7 is an explanatory diagram of a toroidal coil wound by a conventional toroidal winding machine.

FIG. 8 is an explanatory view of another toroidal coil wound by a conventional toroidal winding machine.

FIG. 9 is an explanatory diagram of a so-called star-connection toroidal coil that is divided and wound.

FIG. 10 is an explanatory view of an intermediate step of a so-called star connection toroidal coil of split winding.

FIG. 11 is an explanatory diagram of a lead wire forming process of a toroidal coil having a so-called star connection for split winding.

[Explanation of symbols]

1 ... Annular core, 1a-1f ... Stud, 2
-1, 2, 2, 2-3 ... Shuttle ring, 3-1
.... Core feeding roller, 3-2, 3-3 ... Core pressing roller, 4-1, 4-2, 4-3 ... 5-3 ・ ・ ・ ・ Storage line ring, 6 ・
... Core feed motors, 7-1, 7-2, 7-3 ...
· Storage ring drive motor, 8-1, 8-2, 8-3
..Shuttle ring drive motors 9-1, 9-2, 9-
3 ... Wire material, 10-1, 10-2, 10-3 ...
・ Electromagnetic clutch, 11-1, 11-2, 11-3 ...
・ Shuttle ring drive gear, 12-1, 12-2, 12
-3 ... Drive gear, 13-1, 13-2, 13
-3 ... Wire material accommodating groove of storage line piece, 14-1, 14-
2, 14-3 ...- Drive shaft of shuttle ring drive motor, 15-1, 15-2, 15-3 ...- Wire rod accommodating groove of storage ring, 20 ... Control circuit.

Claims (3)

[Claims] 1. A toroidal coil winding method in which a wire is wound around an annular core to form a multi-phase toroidal coil, wherein the wire is wound while rotating the annular core at a predetermined moving speed according to the winding density. After forming one split coil forming the same phase by winding a predetermined number of turns in the direction, the annular core is rotated to the other split coil winding position that is paired with the one split coil, and the annular coil is rotated. A plurality of procedures for forming the other split coil forming the same phase by winding the wire rod in a direction opposite to the one direction by a specified number of turns while rotating the core at a predetermined moving speed according to the winding density A method of winding a toroidal coil, which is performed simultaneously for the phases. 2. A wire rod forming a multi-phase toroidal coil wound around an annular core is guided to correspond to the number of phases arranged so as to rotate while intersecting with the positions of the respective phases of the multi-phase of the annular core. A plurality of shuttle rings; a shuttle ring drive motor capable of rotating the plurality of shuttle rings in one direction and a direction opposite to the one direction; rotating the annular core to a wire winding speed and a coil winding position. A core feed motor for driving a core feed roller to be moved, and the rotation of the core feed motor is controlled to the wire rod winding speed, and after winding one of the split coils constituting the same phase of the toroidal coil, the annular The position where the core is paired with the one split coil is moved to a position of a predetermined shuttle ring around which the split coil forming the same phase is wound, and the shuttle ring drive is performed. And a control circuit for controlling the rotating motor to rotate in a direction opposite to the wire winding direction of the one split coil to wind the other split coil constituting the same phase of the toroidal coil around the annular core. A toroidal coil winding machine characterized in that 3. A wire rod forming a multi-phase toroidal coil wound around an annular core is guided to correspond to the number of phases arranged so as to rotate while intersecting with the position of each phase of the multi-phase of the annular core. A plurality of shuttle rings; a shuttle ring drive motor capable of rotating the plurality of shuttle rings in one direction and a direction opposite to the one direction; rotating the annular core to a wire winding speed and a coil winding position. The core feed motor that drives the core feed roller to be moved, the same number of storage line rings as the shuttle ring that rotates in synchronization with the plurality of shuttle rings when the wire is wound, and the plurality of storage line rings at the same time. An accumulator ring drive motor to be driven, an idler gear that meshes with the inner circumferences of the plurality of accumulator rings, and the idler gear and the accumulator ring drive motor are connected to each other. The magnetic clutch and the rotation of the core feed motor are controlled to the wire rod winding speed, and after winding one split coil constituting the same phase of the toroidal coil, the one split coil of the annular core 1 The paired position is moved to a position of a predetermined shuttle ring around which the split coils forming the same phase are wound, and the shuttle ring drive motor is rotated in a direction opposite to the wire winding direction of the one split coil. The shuttle ring drive motor so that the other split coil forming the same phase of the toroidal coil is wound around the annular core,
A toroidal coil winding machine comprising a core feed motor, a storage ring drive motor, and a control circuit for controlling the electromagnetic clutch.