JP2001093767A - Winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly form a connection between the coils, when forming two continuous coils. SOLUTION: This winder is provided with a first bobbin 11 and a second bobbin 12, symmetrically across a driven gear 13. A motor 26 rotates the driven gear 13. First, an element wire is wound on the first bobbin 11, thus the first coil is made. Next, an element wire is wound on the second bobbin 12, thus the second coil is made. The lead wire in the section of the connection between the two coils is led along a specified course by the guide groove 25 as a connection section guide meas. The length of the section of connection becomes constant, and also the start and finish positions of the connection section become constant. A situation where the coil cannot be mounted because the connection section is short can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine capable of winding a plurality of coils without cutting wires between the coils.

[0002]

2. Description of the Related Art A winding machine for forming a coil typically has a winding frame (core metal) corresponding to a desired coil shape. A coil is formed by winding a conductive wire as a wire around this winding frame.

In a coil such as a motor, it is desirable to increase the number of turns in order to increase the output. In order to meet this demand, it is effective to arrange the conductors, and the number of turns increases even if the coils have the same size. It is effective to use a rectangular wire to increase the output of a motor or the like. A rectangular wire is a conductive wire having a square cross section. By using a rectangular conductor, a gap between conductors can be reduced as compared to using a conductor having a circular cross section.

Japanese Unexamined Patent Publication No. Hei 8-317610 discloses a winding machine capable of continuously forming two coils. One coil is formed by winding the conductive wire around the bobbin. A second coil is formed by winding a conductive wire next to it. The advantage is that the connection between the coils is not required.

[0005]

The above-mentioned conventional apparatus is an apparatus for producing two coils which are used by being superposed in the axial direction. To make such a coil, two coils that touch each other are formed on a single bobbin. The two coils are directly connected by a crank-shaped step, that is, there is no connection section between the two coils.

On the other hand, it is sometimes necessary to provide a connection section of a certain length between a plurality of coils. In this case, variation in the positional relationship between the both ends of the connection section and the coil (from which part on the circumference of the coil the connection section starts, or whether the conductor deviates from the coil and branches) and variation in the connection section length occur. It is required to prevent. This is to prevent a plurality of coils from being unable to be arranged at appropriate positions.

For example, consider a motor in which six pairs of coils are mounted on twelve magnetic poles. One pair of coils is two adjacent
Attached to each of the two magnetic poles. Therefore, a connection section of an appropriate length is required between the two coils forming one pair. If this connection section is too long, the coil wire will sag. If the conductor in the connection section is too short, the coil cannot be mounted. Even when the connection section starts from an inappropriate position of the coil, it is difficult to properly mount the coil.

[0008] As described above, two continuous data are connected via the connection section.
When winding one coil, it is required that the position and length of the connection section be constant. However, the prior art has not been able to adequately meet such demands. For example, in the above-mentioned Japanese Patent Application Laid-Open No. 8-317610,
Since the coils are in close contact with each other and there is no connection section between them,
Such a problem did not occur.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a winding machine in which a connection section is appropriately formed when a plurality of continuous coils are formed.

[0010]

(1) In order to achieve the above object, the present invention relates to a winding machine capable of winding a plurality of coils without cutting wires between the coils. It is characterized by including a connection section guide means for guiding the element wire of the section along a predetermined path from one coil to another coil. According to the present invention, since the strands of the connection section are guided along the predetermined path, the positional relationship between both ends of the connection section and the coil can be kept constant, and the length of the connection section can be kept constant. This makes it possible to ensure that the plurality of coils are arranged at appropriate positions.

[0011] Preferably, a plurality of winding frames respectively corresponding to the plurality of coils are provided, and each coil is formed by winding an element wire around an independent winding frame. The connection section guide means guides the element wire from one bobbin to another bobbin along the predetermined path.

(2) In one aspect of the present invention, the plurality of winding frames are arranged side by side on the same rotation axis. In this aspect, the plurality of winding frames are driven by a mechanism having a simple structure.

Preferably, a first wire supply unit corresponding to the first winding frame, a second wire supply unit corresponding to the second winding frame, and first and second wire supply units And joining means for joining the ends of the strands supplied from, and the joined strands are guided by the connection section guide means.

According to this aspect, the first and second wires are joined in a state where the joined wires are guided by the connection section guide means.
Are supplied simultaneously to the first and second bobbins from the wire supplying section. Therefore, two continuous coils can be formed simultaneously. The coil forming time can be shortened, and the productivity can be improved.

(3) In another aspect of the present invention, the plurality of reels are arranged side by side in the radial direction of the reel rotation. According to this winding frame arrangement, the winding shaft rotating shaft can be shortened, and the overall length of the device can be shortened.

[0016] Preferably, a sun gear, a planetary gear rotating around the sun gear, and a carrier supporting the planetary gear, wherein one reel rotates with the sun gear and another reel rotates with the planetary gear. Rotate.

First, in a state where the planetary gear can rotate and cannot revolve, an element wire is wound around a winding frame that rotates together with the planetary gear to form a first coil. Next, in a state where the planetary gears can revolve and cannot rotate, a wire is wound around a winding frame that rotates together with the sun gear to form a second coil. Preferably, the planetary gear mechanism is controlled by a suitable controller.

As described above, according to the present invention, two coils can be formed continuously without twisting of the connection section between the coils by a device having a relatively simple configuration including the planetary gears.

(4) According to one aspect of the present invention, the same number of wire supply sections as the plurality of coils, and joining means for joining the ends of the wires supplied from these wire supply sections before forming the coil. Are provided, and the winding of the wire is started after the joined wire is guided by the connection section guide means. According to this aspect, the wire is guided to the guide before the wire is wound. That is, the wires in the connection section are not guided after the stage of shifting from one coil to another coil. Therefore, there is obtained an advantage that the wire is less likely to come off the guide.

(5) In one aspect of the present invention, a plurality of the connection section guide means are formed, and can be selectively used according to the length of the strand of the connection section. According to this aspect, it is possible to separate the coils having different element wire lengths in the connection section between the coils.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention (hereinafter, referred to as embodiments) will be described below with reference to the drawings. In the present embodiment, the present invention is applied to a winding machine that forms a coil for a motor.

<Embodiment 1. FIG. 1 is a perspective view of a winding machine according to the present embodiment. The winding machine is partially exploded and shown schematically. This winding machine includes a wire supply roll 10 around which a wire is wound, and a wound driven gear 13.
And a first winding frame 11 and a second winding frame 12 mounted on both sides of the driven gear 13, and a driving mechanism 14 for rotating the driven gear 13.

The wire supply roll 10 can be reciprocated in the axial direction (arrow 16) by a roll actuator 15. A flat wire as an element wire is wound around the roll 10. A rectangular wire is a conductive wire having a square cross section. By using a rectangular wire, the gap between the conductors can be reduced as compared with using a conductor having a circular cross section. When the bobbin is rotated, the wire is pulled and pulled out of the roll 10. Hereinafter, the case where the element wire is a rectangular wire will be described, but the present invention can be applied even if the element wire has a round cross section.

A winding frame pedestal 17 is provided on a side surface of the driven driven gear 13. A pedestal having the same shape is provided symmetrically on the opposite side surface of the driven gear 13. The first winding frame (core bar) 11 has a winding portion (core portion) 11a and a flange portion 11b. Similarly, the second winding frame (core bar) 12 has a winding portion (core portion, not shown) and a flange portion 12b. The flange portions 11b and 12b have the same shape as the reel base 17 on the gear side.

The first reel 11 is driven by a slide-type first reel actuator 21 and is driven by a driven gear 13.
In the direction of the rotation axis (arrow 23). When the coil is formed, the first winding frame 11 is arranged so as to be in close contact with the pedestal of the driven gear 13. At this time, the winding frame is positioned such that the center of the first winding frame 11 is positioned on the rotation axis of the driven gear 13 and the pedestal and the flange face each other at the same angular position.

The same applies to the second winding frame 12. That is, the second winding frame 12 is driven by the slide-type second winding frame actuator 22 and is movable in the rotation axis direction of the driven gear 13 (arrow 24). When forming the coil, the winding frame 12 is brought into close contact with the driven gear 13. Thus, the first winding frame 11 and the second winding frame 12 are symmetrically arranged on both sides of the driven gear 13.

As shown in FIG. 1, a connection section guide groove 25 is provided on the outer peripheral surface of the driven driven gear 13. This guide groove 25 functions as the connection section guide means of the present invention. The guide groove 25 guides the conductive wire in the connection section between the coils from the first winding frame 11 to the second winding frame 12 along a predetermined path (a path passing through the groove bottom). Guide groove 25
Are provided obliquely with respect to the gear rotation axis.

Next, the drive mechanism 14 for rotating the driven gear 13 includes a take-up drive motor 26 and three drive gears 27 rotated by the output of the take-up drive motor 26.
The three drive gears 27 surround the driven gear 13, are arranged at equal intervals, and mesh with the driven gear 13, respectively. These three drive gears 27
Are connected via a gear mechanism (not shown) and rotate synchronously.

Here, the teeth of the driven gear 13 and the driving gear 27 are omitted in FIG. 1, but any appropriate type of teeth can be applied to each gear. For example, a spur gear or a helical gear can be applied.

The plurality of actuators described above, that is, the roll actuator 15, the first reel actuator 21,
Second reel actuator 22 and winding drive motor 2
6 is controlled by the control unit 28. Control unit 28
Operate these actuators synchronously. The control unit 28 also controls the entire winding machine.

Next, referring to FIGS. 2A to 2D,
The operation of the winding machine according to the present embodiment will be described. In FIG. 2, FIG.
Are partially omitted for the sake of simplicity.

First, as shown in FIG. 2A, the first winding frame 11 and the second winding frame 12 are brought into close contact with both side surfaces of the driven gear 13 to be wound. Then, the leading end of the wire drawn from the wire supply roll is fixed to a predetermined position of the first winding frame 11 using a fixing device (not shown). Next, as shown in FIG. 2B, the rotation of the drive motor is started, and
It is wound around the winding frame 11.

At this time, the supply roll 10 reciprocates at an appropriate timing synchronized with the rotation of the winding frame 11. The roll 10 moves by one conductor once per one rotation of the winding frame 11. As a result, the conductors are wound one by one without gaps between the adjacent conductors. When the entire length of the winding frame (the entire length of the coil) has been wound, the first layer is completed. Then the layer above it is wound up as well. The same winding is repeated,
A predetermined number of layers are formed. In this way, when the necessary number of turns have been wound, the first coil is completed.

In the above-described winding operation, the element wires are aligned and wound. Since the wires are arranged without gaps, the number of turns of the wires is increased even for the same size. Thereby, the space factor at the time of assembling the motor increases. The space factor is the distance between the magnetic poles of the rotating electrical machine.
It is the ratio of the total cross-sectional area of the conductor forming the coil to the cross-sectional area of the slot that houses the coil. In the present embodiment, the space factor is also increased by adopting the rectangular wire.
By increasing the space factor, it is possible to increase the output of the motor.

Returning to FIG. 2, FIG. 2 (c) shows the operation when shifting from the first coil to the second coil. Here, as described below, the drive motor, the roll actuator, and the guide actuator operate in synchronization.

A guide groove 25 is formed on the outer peripheral surface of the driven gear 13.
Is provided. By the rotation of the motor, the guide groove 25 reaches a predetermined angle facing the roller 10. At this time, the supply roll 10 is moved to the second position by the roll actuator.
It is moved to the reel 12 side. Further, a guide actuator 29 (not shown in FIG. 1) urges the strand toward the second winding frame 12. The element wire is pushed by the arm of the actuator 29 and passes through the guide groove 25. Considering the inclination of the groove,
While the gear 13 rotates by an angle corresponding to the circumferential distance d at both ends of the groove (see FIG. 2D), the element wire becomes the guide groove 25.
The actuator is controlled to pass through.

Next, as shown in FIG. 2D, a wire is wound around the second winding frame 12 to form a second coil. The winding operation at this time is the same as the first coil winding. By winding a predetermined number of turns, an aligned coil having a predetermined number of rows and a predetermined number of layers is formed. When the second coil is completed, the cutting device 30 (not shown in FIG. 1)
As a result, the strand is cut at a predetermined position.

Next, as shown in FIG. 3, the driven gear 13 stops in a state where the guide groove 25 is located on the lower side. Then, the first winding frame 11 and the second winding frame 12 are respectively
The driven gear 13 is separated from the driven gear 13 by a first winding frame actuator 21 and a second winding frame actuator 22, and is carried to a predetermined standby position. As a result, the two completed coils 31 and 32 fall downward by their own weight and are taken out while being connected via the wires of the connection section 33.

Thereafter, the two winding frames 11 and 12 are again set in the gear 13
Adhered to. Returning to FIG. 2A, the winding of the next coil is started.

The preferred embodiment of the present invention has been described above. As described above, in the present embodiment, two coils can be continuously wound. Automatic winding of a continuous coil is possible. Compared with a case where two coils are separately formed and then connected, a connection processing operation is unnecessary, and a material for the connection processing is not required, so that a reduction in material cost and manufacturing cost can be achieved. In addition, the quality variation is reduced by eliminating the connection portion. As described above, the productivity can be improved.

In particular, according to the present invention, the wire in the connection section between the coils is guided along a predetermined path by the guide means. That is, in the present embodiment, the element wire is guided by the guide groove along a predetermined path passing through the groove bottom. Therefore, the positional relationship between both ends of the connection section and the coil is constant,
The length of the connection section is constant.

As described above, in this embodiment, a coil for a motor is formed. The two coils are respectively mounted on two magnetic poles of a motor stator, for example. At this time, the conducting wire of the connection section is a portion passing from one coil to another coil through the end face of the motor stator. If the length of the crossover portion is too long, the coil wire will be slack. Conversely, if the crossover part is too short, the coil may not be able to be mounted.
Also, when the crossover portion starts from an inappropriate position of the coil, it is difficult to properly mount the coil. According to the present invention, such a situation can be prevented from occurring.

In this embodiment, two winding frames are arranged side by side on the same rotation axis. Therefore, an advantage is obtained in that the structure of the drive mechanism for these two winding frames may be relatively simple.

In this embodiment, a guide groove is provided on the driven gear 13 which is an intermediate member between the two winding frames.
With this configuration, it is easy to take out the completed coil. In the present embodiment, as described above, the coil can be taken out using the weight of the completed coil.

In this embodiment, the two coils are automatically and continuously wound by the interlocking of the actuators. This automation improves productivity and stabilizes quality.

In this embodiment, the two winding frames 11 and 12 are detached from the driven gear 13 as shown in FIG. On the other hand, one or both winding frames are
May be provided integrally on the side surface of the vehicle, or may be always attached. In this case, only the flange portion is detached. In addition, a configuration in which the winding frame is appropriately divided may be employed.

In this embodiment, three drive gears are provided. On the other hand, some gears may be deleted or function as an idler. However, even in this case, the configuration is such that the necessary function for the drive gear to pass over the guide groove is ensured.

The guide actuator 29 shown in FIG. 2C may not be provided. The strand is guided to the guide groove by the synchronization between the rotation of the motor and the axial movement of the supply roll.

When the coil is wound as described above, it may be difficult to secure the required number of turns in the first layer of the coil. FIGS. 11A and 11B are explanatory diagrams of such a problem. That is, FIG.
In (a), when the coil starts to be wound from the A side of the winding frame, the position of the element wire in the first corner portion of the first turn is the alignment position of the winding in the first turn. Is the second
The windings can be aligned while being maintained at the corner portion and the third corner portion. The coil is wound as it is to the surface D of the bobbin, and the circumference is changed from the first to the second on this surface. Therefore, at the end point of the D surface, that is, at the fourth corner portion, as indicated by the circle,
The last part of the first cycle comes to the winding alignment position of the second cycle. When winding the coil in such a state,
As indicated by the circles in FIG. 11B, the fourth layer at the final circumference of the first layer interferes with the wire wound as one round before the final circumference, and As a result, the required number of turns cannot be secured for one lap.

FIGS. 12A and 12B show an example for solving the above-mentioned inconvenience. That is, in FIG. 12A, the place where the circumference of the wire changes is changed to the A plane instead of the D plane. For this reason, as shown by a circle in FIG. 12A, a groove 100 is formed at a portion corresponding to the beginning of winding of the wire of the bobbin pedestal 17. This groove 100
Is configured such that the depth of the wire gradually decreases in the plane A so that the circumference of the wire is changed. For this reason,
The element wire enters the groove 100, and the circle of FIG.
At the fourth corner portion of the first turn indicated by the mark, that is, at the place where the wire at the start of winding of the first turn and the wire at the end of winding at the fourth corner portion interfere with each other, The winding alignment position at the end of the eye winding can be ensured.
As a result, from the first corner portion of the first turn of the coil to the fourth turn
In any of the corner portions, the wires can be aligned at the wire alignment position in the first round. Therefore, FIG.
As shown by the circles in (b), the required number of turns of the first layer can be reduced without interfering with the wire wound one round before the last round already wound on the last circumference of the first layer. Can be secured.

FIG. 13 shows a modification of the first embodiment. The same members as those in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. In two continuous cassette coils for motors and the like, there are two types, that is, a short wire and a long wire in a connection section between two coils. For this reason, it is desirable that the winding machine according to the present embodiment shown in FIG. 1 also has a configuration in which the length of the element wire in the connection section between the coils can be appropriately changed. The modification shown in FIG. 13 is for accommodating two continuous cassette coils having different connection section lengths.

A characteristic point in FIG. 13 is that two guide grooves provided in one place in FIG. 1 are provided. The guide groove 25b corresponds to a short connection section,
The guide groove 25c corresponds to a long connection section. Also,
At a predetermined position on the side surface of the driven gear 13, a pin 102 for adjusting the length of the wire in the connection section is formed. When a coil having a long connection section is formed, after the winding of one coil is completed, the element wire passes through the guide groove 25c, and the winding of the other coil is started via the length adjusting pin 102. Thereby, a predetermined distance can be secured as the length of the element wire in the connection section between the coils.

The position for forming the length adjusting pin 102 is as follows.
For example, when a strand is laid here, FIG.
It is preferable that the position is such that the element wire can enter the groove 100 shown in (a) and (b). As a result, FIG.
As described in (a) and (b), a predetermined number of turns in the first layer of the coil can be secured.

FIGS. 14 to 19 show operation explanatory diagrams of the modified example shown in FIG. 14 to FIG.
9 describes a case of a long connection section.

In FIG. 14, one of the coils (the first coil) has completed the required number of turns.

From this state, the driven gear 13 is further rotated in the direction of the arrow 103 in FIG. 14 and, as shown in FIG. 15, the guide groove 25c for the long connection section and the element 10 from the element supply roll 10 are supplied. Driven gear 1 until the line coincides
Turn 3 extra.

Next, the roll 10 is moved to the second coil side by the roll actuator 15 shown in FIG.
The strand is moved in the direction of arrow 104 in FIG. Thus, as shown in FIG. 16, the element wire is passed through the guide groove 25c, and the driven gear 13 is rotated in the direction indicated by the arrow 105, that is, in the direction opposite to the direction in which the coil is wound. At the same time, the second reel 12 is separated from the reel pedestal 17, and a gap is formed between the second reel 12 and the reel pedestal 17, so that the element wire can be passed through the gap.

In this state, as shown in FIG. 17, the reverse rotation is further continued in the direction of the arrow 105, and when the wire comes to an angle near the length adjusting pin 102, the roll 1 is rotated.
0 is returned to the first coil side, and the arrow 106 shown in FIG.
The wire is moved in the direction of and is applied to the length adjusting pin 102.

Next, as shown in FIG. 18, the driven gear 13 is further reversely rotated in the direction of the arrow 105, and when it reaches the winding start position of the second coil, the reverse rotation is stopped. In this state, the second winding frame 12 is pressed against the driven gear 13, and the driven gear 13 is rotated forward to start the winding operation of the second coil (FIG. 19). The height of the length adjusting pin 102 is configured to be lower than the height of the bobbin pedestal 17. Thus, it is possible to prevent interference when winding the wire into the second coil. It is also preferable to provide a configuration in which a flange is provided at the tip of the length adjusting pin 102 so that the strand does not come off the length adjusting pin 102.

According to the above-described configuration, the length of the connection section can be divided and wound without requiring a complicated device configuration, and the connection section of a required length can be secured.

<Embodiment 2. > Next, a second embodiment of the present invention will be described. FIG. 4 shows a winding machine of the present embodiment. This winding machine differs from the winding machine of FIG. 1 in that it has two strand supply rolls 10 a and 10 b and a joining machine 40 arranged between both rolls and the driven gear 13. Also,
The connection section guide groove of the driven gear 13 is provided (not inclined) in parallel with the gear rotation axis unlike the winding machine of FIG. Other configurations are almost the same as those of the winding machine of FIG. 1, and the same reference numerals are given to each configuration.

The two supply rolls 10a and 10b are arranged on the same axis side by side in the axial direction. A flat wire as an element wire is wound around each of the supply rolls 10a and 10b. The two supply rolls 10a and 10b are respectively moved in the axial direction (arrow 16) by a first roll actuator 15a and a second roll actuator 15b.
a, 16b). Both actuators 15
a and 15b are both rolls 10 under the control of the control unit 28.
a and 10b are moved symmetrically in the axial direction.

The joining machine 40 is a device for joining the ends of the wires drawn from the two rolls 10a and 10b (FIG. 5).
Is controlled by the control unit 28. As a joining method, for example, any one of soldering, brazing, welding, caulking, and the like is appropriate, but is not limited thereto.

Next, referring to FIGS. 6A to 6D,
The operation of the winding machine according to the present embodiment will be described. In FIG. 6, FIG.
Are partially omitted for the sake of simplicity.

First, as preparatory work, a wire is drawn from the two supply rolls 10a and 10b, and both ends of the two wires are joined by the joining machine 40. And FIG. 6 (a)
As shown in (1), the joined portion of the wires is inserted into the connection section guide groove 25a of the driven gear 13. As shown, the first
The take-up driven gear 13 and the second take-up frame 12
On both sides. Note that a portion other than the joining portion on the strand may be arranged in the guide groove.

Next, as shown in FIG. 6B, the rotation of the drive motor is started. The driven gear 13, the first winding frame 11, and the second winding frame 12 rotate with the rotation of the motor. By this rotation, a wire extending from one end of the guide groove is wound around the first winding frame 11, and at the same time, a wire extending from the other end of the guide groove is wound around the second winding frame 12. The strand is positioned at the bottom of the guide groove 25a by the tension acting on the strand.

Here, similarly to the above-described embodiment, the wire is wound so that the wires are aligned. That is, in each layer, the rotation of the motor and the reciprocating movement of the wire supply roll are synchronized so that the wires in adjacent rows are in close contact with each other. Particularly in the present embodiment,
The two supply rolls 10a and 10b operate symmetrically about the driven gear 13. Thereby, two coils having a symmetrical shape are formed at the same time.

Next, as shown in FIG. 6C, the wires extending from both coils are cut at predetermined positions by cutting devices 30a and 30b (not shown in FIG. 4). Further, FIG.
As shown in (d), the coil is taken out in the same manner as in the first embodiment. That is, the guide groove 25a is arranged on the lower side, and the first winding frame 11 and the second winding frame 12 are retracted. As a result, the two connected coils fall down by their own weight and are taken out. FIG. 7 shows a completed product, in which two coils are connected via a connection section. Thereafter, the two winding frames 11 and 12 are brought into close contact with the gear 13 again. FIG. 6 (a)
And the winding of the next coil is started.

The preferred second embodiment of the present invention has been described above. According to the present embodiment, the same effects as those of the first embodiment can be obtained. That is, since the element wire of the connection section is guided along the predetermined route by the guide groove,
The position and length of the connection section become constant.

Further, according to the present embodiment, the wires are simultaneously supplied from the first and second wire supply units to the first and second winding frames. Therefore, two continuous coils can be formed simultaneously. The coil formation time can be reduced to about half and productivity can be improved.

Further, according to the present embodiment, there is obtained an advantage that the parts for connecting the individual coils and the connection work therefor can be reduced by half.

Further, according to the present embodiment, a plurality of wire supply units are provided, and the wires are arranged on the guide means before the winding operation. That is, the wire is not guided when moving from one coil to another coil. Therefore, there is obtained an advantage that the wire is less likely to come off the guide.

According to the present embodiment, the guide groove functions as a winding hook. A wire is hooked on this hook. Therefore, a configuration for fixing the end of the wire to the winding frame is unnecessary. Further, there is an advantage that complicated control for synchronously operating the motor and the actuator for guiding the element wire into the guide groove is not required. Although the guide grooves 25, 25a in the first and second embodiments described above show cases where the guide grooves are inclined with respect to the rotation axis and parallel to the rotation axis, in the first embodiment, the guide grooves 25 and 25a In the second embodiment, the guide groove can be formed to be inclined with respect to the rotation axis. In this case, the width and shape of the groove and the method of synchronizing the actuators can be adjusted. Need to consider.

<Embodiment 3>> Next, a third preferred embodiment of the present invention will be described. This winding machine includes a wire supply roll 10 and a first winding frame 11 similarly to the first embodiment.
And a second reel 12 and a drive mechanism 50 for driving these reels. Unlike the first embodiment, the two reels are arranged side by side in the radial direction of the reel rotation. The driving mechanism 50 is significantly different from that of the first embodiment, and has a structure using a planetary gear as described below.

In the drive mechanism 50, a sun gear 54 is connected to the output shaft of the winding drive motor 52. Two planetary gears 56 and 58 are arranged with the sun gear 54 interposed therebetween, and these are meshed with the sun gear 54. Here, as in the first embodiment, the teeth of each gear are omitted from the figure.

The planetary gears 56 and 58 are supported by a disk-ring type carrier 60. Carrier 6
0 is engageable with the planetary gears 56, 58. In the engaged state, the rotation of the planetary gears 56 and 58 is restricted. In the disengaged state, the planetary gears 56, 58 rotate freely. Further, the carrier 60 can be locked, and in the locked state, the carrier 60 does not rotate, so that the planetary gears 56, 58 do not revolve. In the unlocked state, the carrier 60 rotates together with the sun gear 54. These operations of the carrier 60 are realized by a carrier actuator 62.

The first winding frame 11 has one planetary gear 5
6 protrudes from the side surface. The first winding frame 11 has a winding frame pedestal 64 and a winding portion 66 on the pedestal. Winding part 6
The cross-sectional shape of No. 6 matches the coil shape of the forming target. The center of the winding part 66 is located on the rotation axis of the planetary gear 56. The first reel flange 68 has the same shape as the reel base 64. The first reel flange 68 is moved by the first reel actuator 70 and attached to and detached from the first reel 11, as in the first embodiment.

The second winding frame 12 protrudes from the side surface of the sun gear 54. Similarly to the first winding frame 11, the second winding frame 12 has a winding frame pedestal 74 and a winding portion 76. The center of the winding portion 76 is located on the rotation axis of the sun gear 54. The second reel flange 78 has the same shape as the reel base 74, is moved by the second reel actuator 80, and is attached to and detached from the second reel 12.

The difference between the first reel 11 and the second reel 12 is that the pedestal 74 of the second reel 12 is higher than the pedestal 64 of the first reel. Although hidden behind the pedestal 74 in FIG. 8, the pedestal 74 is provided with a groove for guiding element wires in the connection section as described later.

The winding drive motor 52, the carrier actuator 62, the first winding frame actuator 70, the second
The reel actuator 80 is controlled by the control unit 82. The control unit 82 also controls the roll actuator 84 that reciprocates the wire supply roll 10 in the axial direction. The control unit 82 operates these actuators in synchronization. The control unit 82 also controls the entire winding machine.

Next, the operation of the winding machine of the present embodiment will be described. First, the reel flanges 68 and 78 are moved and brought into close contact with the reels 11 and 12, respectively. The carrier actuator 62 operates, the carrier 60 is locked,
That is, it is restrained from rotating. Further, the engagement between the carrier 60 and the planetary gears 56 and 58 is released. Thus, the planetary gears 56 and 58 do not revolve around the sun gear 54, but are in a state where they can rotate.

In this state, the wire is pulled out from the supply roll 10, and the tip of the wire is fixed to the first reel 11. Then, the rotation of the winding drive motor 52 and the sun gear 54 starts. As described above, the planetary gears 56 and 58 can rotate, but cannot revolve. Therefore, the planetary gears 56 and 58 rotate at a fixed position as the sun gear 54 rotates.

The first reel 11 together with the planetary gear 56
Rotates, and the element wire is wound around the winding frame 11. even here,
As in the above-described embodiment, the wires are wound so as to be aligned. That is, in each layer, the rotation of the motor 52 and the reciprocal movement of the wire supply roll 10 are synchronously controlled such that the wires in adjacent rows are in close contact with each other. By winding a predetermined number of turns, the first coil is completed. At this point, the motor 52
Is temporarily stopped.

Next, the carrier actuator 62 engages the planetary gears 56 and 58 with the carrier 60. Further, the actuator 62 releases the lock of the carrier 60. As a result, the planetary gears 56 and 58 can revolve and cannot rotate. Then, the winding drive motor 52 is rotated in the opposite direction. As shown in FIG. 9, the planetary gear 56 revolves with the rotation of the sun gear 54.

Here, referring to FIG. 9 and FIG.
In the first half rotation after the start of revolution, the element wire is guided to the connection section guide groove 86 provided in the pedestal portion of the second winding frame 12. That is, the planetary gear 56 and the first reel 1
Immediately before the 1 makes a half turn, the wire supply roll 10 moves in the axial direction to a position corresponding to the second winding frame 12. By the synchronous control of the motor 52 and the roll 10, the element wire fits into the connection section guide groove 86. Preferably, similarly to the first embodiment, a guide actuator (not shown) for securely guiding the element wire to the guide groove 86 is provided.

As shown in FIG. 10, the connection section guide groove 8
6 crosses the bobbin seat 74 of the second bobbin 12 obliquely. The guide groove 86 guides the element wire of the connection section between the coils from the first winding frame 11 to the second winding frame 12 along a predetermined path (a path passing through the groove bottom).

When the rotation of the motor is further continued, the element wire is wound around the second winding frame 12. Also in this case, the wire is wound so that the wires are aligned by the control of linking the motor and the roll.

In this winding operation, the first winding frame 11 revolves around the second winding frame 12 without rotating. Therefore, twisting does not occur in the element wire in the connection section between the first coil and the second coil. Also, the first winding frame 11 is
It is at a position sufficiently lower than the winding frame 12. Therefore, no interference between the first winding frame 11 and the element wire occurs.

When the predetermined number of turns have been wound around the second winding frame 12, the motor 52 stops. Then, the strand is cut at a predetermined position by the cutting device 88 of FIG. First
The bobbin flange 68 and the second bobbin flange 78 are separated from the corresponding bobbins 11, 12 by the first bobbin actuator 70 and the second bobbin actuator 80, respectively, and are carried to a predetermined standby position. And finished 2
Two coils are removed. After this, the reel flange 6
8, 78 are mounted again on the winding frames 11, 12, and the winding of the next coil is started.

As a modification of this embodiment, the winding portions 66 and 76 of the winding frame may be provided on the winding frame flanges 68 and 78 side. In this case, similar to the other embodiments described above,
The advantage is that the coil can be taken out using its own weight.

In the present embodiment, a ring gear is not provided outside the planetary gears. However, it is preferable to provide a ring gear. By rotating the sun gear and the ring gear, the planetary gear can perform a desired operation, and the above-described rotation and revolution can be appropriately performed as necessary. The carrier actuator can be omitted.

The third preferred embodiment of the present invention has been described above. According to the present embodiment, the same effects as those of the first embodiment can be obtained. That is, since the element wire of the connection section is guided along the predetermined route by the guide groove,
The position and length of the connection section become constant.

Further, according to the present embodiment, a plurality of winding frames are
They are arranged side by side in the radial direction of the reel rotation. According to this winding frame arrangement, the winding shaft rotating shaft can be shortened, and the overall length of the device can be shortened.

Further, according to the present embodiment, the first winding frame 11 revolves around the second winding frame by using the planetary gear, thereby preventing twisting of the wires in the connection section between the coils.

Here, in a winding machine in which a plurality of coils are continuously formed, it is important to provide a structure for preventing the connection section from being twisted as described above. Without the torsion prevention mechanism, the torsion increases each time the bobbin rotates, and the conductor may eventually be twisted. According to the present invention, this torsion prevention mechanism is realized by a relatively simple configuration using planetary gears. There is an advantage that a complicated configuration is not required, and the apparatus can be simplified and downsized. In the other embodiments 1 and 2 described above, by arranging a plurality of winding frames in the rotation axis direction, twisting of the connection section is easily prevented.

FIGS. 20A and 20B show the third embodiment.
Is shown. This modification is shown in FIG.
The present invention relates to a winding machine capable of winding a long wire and a short wire in a connection section between coils in a manner similar to that shown in FIG. In FIGS. 20A and 20B, as described above, after the required number of turns has been wound by the first coil by the rotation of the planetary gear 56, the winding operation is stopped, and the two coils are rotated by the rotation of the carrier 60. The operation shifts to the eye winding operation. At this time, the sun gear 54
The length of the connection section between the two coils can be adjusted by appropriately adjusting the phase between the two coils. That is, when the winding operation of the second coil is to be started at the winding section 76 by the rotation of the sun gear 54, if the phases of the sun gear 54 and the planetary gear 56 are set as shown in FIG. The distance L1 between the winding end point 110 of the eye and the winding start point 112 of the second coil is the length of the connection section between the two coils.

The sun gear 54 and the planetary gear 56
20B, the distance between the winding end point 110 of the first coil and the winding start point 112 of the second coil is L2 + L3 + L4. Therefore, the length of the connection section between the two coils is as shown in FIG.
20 is short, and the case of FIG. 20B is long. In this way, winding of a coil having two types of connection sections, long and short, can be performed.

In the modification shown in FIGS. 20 (a) and 20 (b), not only the two kinds of windings, but also the phases of the sun gear 54 and the planetary gear 56 are appropriately controlled, so that the two The length of the connection section between the coils can be arbitrary. Thereby, the applicable range of the coil can be widened.

Although the three preferred embodiments of the present invention have been described above, it is needless to say that the present invention is not limited to these embodiments. That is, this embodiment can be modified by those skilled in the art within the scope of the present invention. For example, in the above embodiment, the number of winding frames is two, but the number of winding frames may be three or more. Then, three or more continuous coils may be formed. Further, in the above-described embodiment, the connection section guide unit is configured by the guide groove, but the guide unit may have another configuration. For example, guide pins may be used.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a winding machine according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an operation of the winding machine of FIG. 1;

FIG. 3 is a view showing a coil take-out method of the winding machine of FIG. 1;

FIG. 4 is a diagram illustrating a winding machine according to a second embodiment.

FIG. 5 is a diagram showing joining of wires supplied from two wire supply rolls in the winding machine of FIG. 4;

FIG. 6 is a diagram illustrating the operation of the winding machine of FIG. 4;

FIG. 7 is a diagram showing a pair coil formed by the winding machine of FIG. 4;

FIG. 8 is a diagram illustrating a winding machine according to a third embodiment.

FIG. 9 is a diagram illustrating a winding machine according to a third embodiment.

FIG. 10 is a partially enlarged view of a second winding frame of the winding machine according to the third embodiment.

FIG. 11 is an explanatory diagram of a state of winding a first layer of a coil.

FIG. 12 is a view showing a state in which the first layer of the coil is wound up;
It is explanatory drawing of the improvement method of a lap.

FIG. 13 is a diagram showing a modification of the winding machine of the first embodiment shown in FIG. 1;

FIG. 14 is an operation explanatory view of the winding machine shown in FIG. 13;

FIG. 15 is an operation explanatory view of the winding machine shown in FIG. 13;

FIG. 16 is an operation explanatory view of the winding machine shown in FIG. 13;

FIG. 17 is an operation explanatory view of the winding machine shown in FIG. 13;

FIG. 18 is an operation explanatory view of the winding machine shown in FIG. 13;

FIG. 19 is an operation explanatory view of the winding machine shown in FIG. 13;

FIG. 20 is a view showing a modification of the winding machine of Embodiment 3 shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Element wire supply roll, 11 1st winding frame, 12 2nd winding frame, 13 Driven gear, 14 Drive mechanism, 25, 25
a, 25b, 25c Connection section guide grooves, 26, 52
Winding drive motor, 27 drive gear, 28 control unit, 2
9 guide actuator, 30 cutting device, 40 joining machine, 54 sun gear, 56, 58 planetary gear,
60 carrier, 62 carrier actuator 10
0 groove, 103, 104, 105, 106 arrow, 10
2 Length adjustment pin, 110 Winding end point of 1st coil, 112 Winding start point of 2nd coil.

Claims (9)

[Claims] 1. A winding machine capable of winding a plurality of coils without cutting wires between the coils, wherein a wire in a connection section between the coils is connected to a predetermined coil extending from one coil to another coil. A winding machine comprising connection section guide means for guiding along a path. 2. The winding machine according to claim 1, wherein a plurality of winding frames respectively corresponding to the plurality of coils are provided, and each coil is formed by winding an element wire on an independent winding frame. The winding machine, wherein the connection section guide means guides the element wire from one reel to another reel along the predetermined path. 3. The winding machine according to claim 2, wherein the plurality of winding frames are arranged side by side on the same rotation axis. 4. The winding machine according to claim 3, wherein a first wire supply unit corresponding to the first winding frame, a second wire supply unit corresponding to the second winding frame, And a joining means for joining ends of the wires supplied from the first and second wire supply units, and the joined wires are guided by the connection section guide means. Wire machine. 5. The winding machine according to claim 2, wherein the plurality of winding frames are arranged side by side in a radial direction of the rotation of the winding frame. 6. The winding machine according to claim 5, further comprising: a sun gear, a planetary gear rotating around the sun gear, and a carrier supporting the planetary gear.
A winding machine wherein one reel rotates with the sun gear and another reel rotates with the planetary gear. 7. The winding machine according to claim 1, wherein the same number of wire supply units as the plurality of coils, and ends of the wires supplied from these wire supply units are joined before forming the coil. And a winding means for winding the wire after the connection section guide means guides the bonded wire. 8. The winding machine according to claim 3, wherein a plurality of the connection section guide means are formed, and can be selectively used according to the length of a wire in the connection section. Winding machine. 9. The winding machine according to claim 5, wherein a plurality of said connection section guide means are formed, and can be selectively used according to the length of a wire of said connection section. Winding machine.