JPH1146469A - Coil forming equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil forming equipment which requires no works by hands at high places, and which can form a coil of a desired shape easily without any increase in the installation area. SOLUTION: Each element wire drum 4 is provided with a tension applicator which applies a given tension to an element wire 1. A caterpillar-like carrier device 8 of a coil carrier equipment 7 can be opened and closed. The taping pitch of a taping device 9 can be changed by changing the rotating speed of a rotary stand 9a. An element wire holding device 17 slidably or non-slidably holds the taped element wire 1 from up and down. To one side of the element wire holding device 17, a coil winding machine 15 wherein a rotary' shaft of a shuttle coil former 3 can be moved up and down is located. At both ends of both linear sections of the shuttle coil former 3, that is, at four points of the shuttle coil former 3, there are clamps 16a, 16b, 16c, 16d, whose movements toward or against the shuttle coil former 3 and in the axis direction of the shuttle coil former 3 can be individually driven. The operation of each device of this equipment is controlled, based on control signals from a controlling section 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil forming apparatus for converging element wires, winding an insulating tape, and then winding the same to obtain a shuttle-shaped coil.

[0002]

2. Description of the Related Art FIG. 9 is a schematic front view showing a conventional molding apparatus. In the figure, reference numeral 1 denotes a wire which is a semi-rigid rectangular copper wire, and each wire 1 is wound around a wire drum 4.
The plurality of strand drums 4 are rotatably supported by a drum base 5 installed on the inclined table 13a, and a brake device (not shown) is attached. As a result, the wire 1 is drawn out in a state where a predetermined tension is applied.

[0003] An inclined table 13b is installed on the upper side of the inclined table 13a so that the lower side thereof is opposed to the inclined table 13b. On the inclined table 13b, the strands 1 drawn from the strand drum 4 are stacked. A focusing unit 6 for focusing into a predetermined square, a coil feeding device 7 in which a caterpillar-shaped feeding device 8 driven by a predetermined driving device (not shown) is disposed vertically, and a coil feeding device 7 Taping device 9 for winding insulating tape 10 around sent strand 1
Are arranged in this order from the lower side.

[0004] The caterpillar feeder 8 is provided with two drive rollers 81 provided in the transport direction of the wire 1, two guide rollers 82 provided between the two drive rollers 81 and having a larger diameter than the drive roller 81, And a belt 83 wound around the two rollers. The taping device 9 has a wire 1 at the center.
And a turntable that rotates around the hole is provided around the hole.
Is mounted.

[0005] A winding machine 11 for winding the element wire 1 in a shuttle winding form 3 having a semicircular corner portion 3a in a front view at both ends is provided on the upper side of the inclined table 13b. The shuttle winding 3 is supported at its center by an axis 11a which is perpendicular to the front face and horizontal to the installation surface.
11a is rotatably driven by a variable speed drive having an electromagnetic clutch (not shown). In front of the winding machine 11, a work table 12 on which an operator rides for performing various operations on the coil wound on the shuttle winding form 3 is installed.

The operation of the coil forming apparatus configured as described above will be described. The wires 1 pulled out from the respective wire drums 4 are stacked in a plurality of stages at a converging section 6, formed into a rectangular shape in a longitudinal sectional view, and sent to a coil feeder 7.
Here, as the drive roller 81 of the caterpillar-shaped feeding device 8 rotates, the element wire 1 is pressed by a guide roller 82 from above and below at a predetermined pressure, is made into a coil shape, and is sent to the taping device 9 side. Coiled wire 1
When passing through a hole provided in the center of the taping device 9, the insulating tape 10 is wound around its outer periphery at a winding pitch of, for example, a half-lap winding.

After fixing the tip of the taped strand 1 to one side of the upper side of the shuttle winding 3 in the horizontal state,
The strand 1 is wound in a shuttle shape conforming to the shape of the shuttle winding 3 by rotating the shuttle winding 3 at a constant speed around the shaft 11a in the direction in which the other side (the taping device 9 side) rises. .

At this time, the angle of the element wire 1 from the taping device 9 to the winding position by the shuttle winding 3 when the shuttle winding 3 is in the horizontal state as shown in FIG. The angle between the end of the shuttle winding 3 and the end of the shuttle winding 3 when the shuttle winding 3 is in the upright state changes from the angle formed by the end of the shuttle winding 3 on the taping device 9 side. Therefore, in order to reduce this angle and reduce its change, the tilting tables 13a, 1
3b is provided.

[0009]

However, when the winding machine 11 having the above-described configuration is used, the shuttle winding 3
When the wire rotates from the horizontal state to the upright state and when it rotates from the upright state to the horizontal state, the winding speed of the insulating tape 10 in the taping device 9 changes because the transfer speed of the strand 1 changes. Becomes irregular. Therefore, by keeping the drive roller 81 in the caterpillar-shaped feeding device 8 of the coil feeding device 7 in a braking state and putting the electromagnetic clutch of the winding machine 11 in a slipping state, the transfer speed of the strand 1 is kept substantially constant. Has been adjusted.

Further, when the shuttle winding form 3 is in the upright state, that is, when the angle of the strand 1 at the exit side of the taping device 9 is raised to the maximum, plastic deformation occurs at the exit side of the taping device 9 and bending occurs. When the angle of the wire 1 becomes small, the bent portion may not return to the original position due to the rotation of the shuttle winding form 3 after that. In this case, the operator stops the operation of all devices once and
It is necessary to climb on 12 and hit the bend with a hammer, for example, to correct it.

In order to suppress the occurrence of the bent portion, it is conceivable to increase the distance between the taping device 9 and the winding machine 11, but this increases the installation area of the device.

Furthermore, since the strand 1 is a copper wire, it has rigidity, and is wound at a semicircular corner portion 3a of the shuttle winding 3 when it is wound along the shape of the shuttle winding 3. In this case, the worker may temporarily stop operating all devices and
The shape of the shuttle winding 3 is corrected by climbing on the top 12 and hitting it with a hammer, for example.

In the corner portion 3a, since the bending length of the wire 1 is longer toward the outer circumference, the insulating tape 10 wound around the wire 1 is shifted at the outer circumference to expose the wire 1. Therefore, it is necessary for the operator to stop the operation of the apparatus and perform the winding and repair work of the insulating tape 10.

Further, in the case where the drawing speed from each wire drum 4 is the same, as shown in FIG. 11, the bending length of the wire 1 at the corner 3a is different from that in the transport direction of the wire 1, On the upstream side, for example, the coil feeder 7
The wire 1 hitting the inner peripheral side between the wire and the taping device 9 is loosened. In order to remove this slack, the operator also stops the operation of the apparatus, opens the caterpillar-shaped feeder 8 of the coil feeder 7 and opens the inner circumference on the element wire drum 4 side from the coil feeder 7. It is necessary to pull the element wire 1 on the side into a straight line.

However, the manual operation by the above-mentioned operator requires skill, and the length of the shuttle winding 3 is usually 4 mm.
To reach up to 5 m, the user must go up to the high work table 12 to perform various operations, and strict attention must be paid to work at high places.

The present applicant has disclosed in Japanese Patent Application Laid-Open No. 5-304747 that the shuttle winding is rotated and moved in accordance with the winding state of the wire so that the winding position can be continuously changed without swinging up and down. A device that can be wound is disclosed. In addition, in this device, a reverse strain roller that applies reverse strain to suppress springback of the strand is provided,
It is intended to bend along the shuttle winding with precise curvature.

However, when a plurality of strands are bundled and wound, there is a problem that the difference in the winding length of each strand is not corrected. Further, the problem that it is still difficult to accurately conform to the shape of the corner portion of the shuttle winding has not been completely solved.

The present invention has been made in view of the above circumstances, and eliminates the need for manual work by an operator at a high place, and allows a coil having a desired shape to be easily formed without increasing the device area. An object of the present invention is to provide a coil forming device capable of forming.

[0019]

According to the first aspect of the present invention,
The winding type, which winds the bundled wire with the insulating tape taped, keeps the winding position of the wire constant, and rotates at a variable speed to keep the wire moving speed at the time of winding.
It is characterized by being moved.

According to a second aspect of the present invention, in the first aspect, there is provided means for automatically pressing the wound wire into the winding form according to the rotation angle of the winding form. And

According to a third aspect of the present invention, in the first or second aspect, a plurality of element drums each having a plurality of element wires wound thereon are provided on each element drum. Is provided with an anti-rotational force applying device for applying a predetermined counter-rotational force in the reverse direction.

According to a fourth aspect of the present invention, in the third aspect, when the winding form rotates to a predetermined angle, the rotating means and the moving means are stopped, and the holding device is set to a non-slidable closed state, and the transfer is performed. A control unit for setting the device in an open state in which the device cannot be clamped, wherein when the clamping device is closed and the transfer device is open, the wire is wound by the anti-rotation of the wire drum by the anti-rotational force applying device. It is characterized by returning.

According to a fifth aspect of the present invention, in each of the third and fourth aspects, each of the anti-rotational force applying devices is configured such that a tension applied to a wire wound on an inner peripheral side during winding on a winding form is increased on an outer peripheral side. It is characterized in that it is set to a value larger than the tension for the strand to be taken.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the taping device automatically changes the revolution speed of the roller on which the insulating tape is wound according to the rotation angle of the winding form. Means.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments. Embodiment 1 FIG. FIG. 1 is a schematic perspective view, partially broken away, showing a coil forming apparatus according to the present invention. 1 in the figure
Denotes a wire which is a semi-rigid rectangular copper wire, and each wire 1 is wound around a wire drum 4. Multiple wire drums 4
Is rotatably supported by the drum base 5, and each wire drum 4 has a tension device 18 that applies a predetermined tension to the wire 1 by a rotational force in a direction opposite to the drawing direction of the wire 1. Installed. Here, the tension of each strand 1 is
The force of each tension device 18 is set so that the wire 1 on the inner peripheral side at the time of winding is larger and smaller on the outer peripheral side.

On the side of the drum base 5, a converging unit 6 for laminating the wires 1 drawn from the wire drum 4 and converging the wires into a predetermined square is driven by a predetermined driving device (not shown). An openable and closable coil feeder 7 in which a caterpillar-shaped feeder 8 is vertically arranged, and a taping device 9 for winding an insulating tape 10 around the strand 1 sent by the coil feeder 7 are arranged in this order. ing.

The caterpillar feeder 8 has two drive rollers 81 provided in the transport direction of the wire 1, two upper and lower drive rollers 81 provided therebetween, and a guide roller 84 having a smaller diameter than the drive roller 81. And a belt 83 wound around the six rollers. The interval between the upper and lower caterpillar-shaped feeding devices 8 can be changed so as to obtain a state in which the strand 1 is clamped (closed state) and a state in which the strand 1 is not clamped (open state).

The taping device 9 has a hole 9b at the center thereof through which the wire 1 passes, and a turntable 9a which rotates at a variable speed around the hole 9b is mounted around the hole 9b. A roller 10a around which the insulating tape 10 is wound is rotatably mounted about an axis parallel to the direction in which the strand 1 is transported.

At the side of the taping device 9, there is provided a wire holding device 17 for holding the taped wire 1 slidably / impossibly from above and below. A winding machine 15 capable of moving the rotating shaft up and down is provided. A rotating unit 15a, which is horizontal to the installation surface and perpendicular to the front surface and rotationally drives a rotating shaft that supports the shuttle winding 3 at the center thereof, is configured to move up and down by a moving device 15b. It is. The moving device 15b is a winding machine
A base 152 having vertically extending rails 152 attached to both sides of the front surface of the 15 case 151 and engaging portions 153 that hold the rotating portion 15a at the center thereof and engage with the rails 152 at both ends of the back surface. 154 and a driving device 155 provided in the case 151.

Both straight portions 3b of the shuttle winding 3 (see FIG. 2)
Clamps 16a, 16b, 16c, and 16d are provided at four positions at the end of the shaft. The movement of the shuttle winding 3 toward and away from the shuttle winding 3 and the movement of the shuttle winding 3 in the axial direction are performed by, for example, a hydraulic device. And are individually driven. Rotating part 15
a, the shuttle winding 3 is rotationally driven by a variable speed driving device having an electromagnetic clutch (not shown) as in the conventional case.

The open / closed state of the caterpillar-shaped feeder 8 of the coil feeder 7, the rotation speed of the rotary table 9a of the taping device 9, the opened / closed state of the strand holding device 17, and the clamps 16a, 16b,
Operation of 16c, 16d, rotation speed of rotating unit 15a, and moving device 1
The vertical movement of the shuttle winding 3 by 5b is controlled based on a control signal from the control unit 19.

The operation of the apparatus of the present invention configured as described above will be described. The strand 1 drawn out from each strand drum 4 has a lower layer side corresponding to the outer peripheral side at the time of winding by the shuttle winding 3 and an upper layer side corresponding to the inner peripheral side.
At the converging section 6, they are stacked in a rectangular shape in a vertical cross section, and sent to the coil feeder 7. Here, as the drive roller 81 of the caterpillar-shaped feeding device 8 rotates, the element wire 1 is pressed by a guide roller 84 from above and below with a predetermined pressure, is made into a coil shape, and is sent to the taping device 9 side.
When the coiled wire 1 passes through a hole 9b provided at the center of the taping device 9, an insulating tape 10 is wound around its outer periphery at a predetermined winding pitch based on the rotation speed of the turntable 9a. Is done. The taped strand 1 passes through the strand holding device 17 and is sent to the winding machine 15.

After fixing the tip of the wire 1 sent to the winding machine 15 to one side of the lower side of the shuttle winding 3 in a horizontal state, the other side of the shuttle winding 3 (the taping device 9 side) descends. In the direction of rotation. At this time, as shown in FIG. 2, the driving device 155 adjusts the height of the base 154 holding the rotating portion 15a in accordance with the state of the shuttle winding 3 by a rail.
Move along 152. That is, when the shuttle winding 3 is in the horizontal state, the rotating portion 15a is at the lowest position. At this time, the focusing unit 6, the coil feeder 7, the taping device 9,
The lower side of the shuttle winding 3 is substantially horizontal.

The rotating part 15a rotates the rotary shaft at a preset shift speed, thereby rotating the shuttle winding 3 and, at the same time, the moving device 15b synchronized with this operation.
By the operation described above, the rotating portion 15a is raised at a predetermined speed. As a result, the wire 1 after leaving the wire holding device 17
Is maintained substantially horizontal. Further, when the shuttle winding 3 rotates and becomes upright, the rotating portion 15a is moved so as to be at the uppermost position. Then, as the shuttle winding 3 rotates from the upright state to the horizontal state,
15a descends to the lowest point at a predetermined shift speed.

The initial lowermost position of the shuttle winding 3 is higher than the exit position of the strand holding device 17 by half the length of the shuttle winding 3 in the transverse direction. The uppermost position is a position that is higher than the exit side position of the strand holding device 17 by 1/2 of the longitudinal length of the shuttle winding 3. Then, the lowermost position and the uppermost position are set so as to move upward by the winding thickness, that is, the thickness dimension of the strand 1 for each winding. Thereby, it is possible to operate the wire 1 while keeping the winding position constant.

The rotating unit is controlled by the N / C device so that the transfer speed of the wire 1 sent to the wire holding device 17 is constant.
The rotational speed of the moving device 15a and the moving speed of the moving device 15b are both changed and synchronized.

The operation of the clamps 16a, 16b, 16c, 16d will be described with reference to FIGS. First, when the shuttle winding 3 is in the horizontal state (FIG. 3A), the shuttle winding 3
The clamps 16c and 16d located below are open, that is, separated from the surface of the shuttle winding 3 and located deeper than the winding surface of the strand 1. On the other hand, the clamps 16a and 16b located above the shuttle winding 3 are in the closed state, that is, the strand 1
And applies a force to the strand 1 in a direction in contact with the surface of the shuttle winding 3. Then, when the shuttle winding 3 starts to rotate and turns a predetermined angle, for example, 4 ° (FIG. 3)
(b)), the clamp 16c provided at the rising end of the shuttle winding 3 operates to press and fix the strand 1 toward the surface of the shuttle winding 3.

Further, when the shuttle winding 3 rotates and turns at a different predetermined angle, for example, 6 ° (FIG. 4 (a)), the other clamp 16d in the open state closes and presses the element wire 1.
Thereafter, when the shuttle winding form 3 stands upright, the clamp provided on the surface of the strand 1 facing the straight transfer area.
16a and 16b are opened, that is, they move in a direction away from the surface of the shuttle winding 3 and further retreat backward from the winding surface of the strand 1. This state is maintained until the horizontal state is reached.

Further, the wire releasing operation by the opening and closing operation of the wire holding device 17 interlocked with the coil feeder 7 is shown in FIG.
This will be described with reference to FIG. FIG. 5A shows a state in which the shuttle winding 3 is in a horizontal state, in which the caterpillar-shaped feeding device 8 of the coil feeding device 7 is in a closed state, and the strand holding device 17 is in an open state. At this time, the shuttle winding 3 is in a horizontal state, and the strand 1 is wound horizontally by the straight portion 3b of the shuttle winding 3. When the shuttle winding 3 starts to incline due to the rotation, the wire 1 starts to be wound along the corner 3a of the shuttle winding 3, and the winding length of the plurality of wires 1 on the outer peripheral side and the inner peripheral side. Due to the difference in elasticity, elastic deformation occurs in the wire 1 on the inner peripheral side, and loosening starts to occur gradually (FIG. 5).
(b)).

When the shuttle winding 3 reaches a predetermined turning angle, for example, 15 °, the rotating part of the winding machine 15 is rotated.
Since the rotation of 15a is stopped, the rotation of the shuttle winding 3 is stopped, and the vertical movement by the moving device 15b is also stopped (FIG. 5 (c)). Then, after the strand holding device 17 is closed (FIG. 5D), the caterpillar-shaped feeding device 8 is opened (FIG. 5E). Then, the loosened wire 1 is rewound by the elastic return action of the wire 1 and the pulling force of the tension device 18 provided on the wire drum 4, and gradually returns to a linear shape (FIG. 5 (f)). ). After the strand 1 recovers to a linear shape, the caterpillar feeder 8 is returned to the closed state, the strand holding device 17 is returned to the open state, and the winding by the shuttle winding 3 is resumed.

The slack removing operation is automatically performed every time the strand 1 is wound around the corner 3a of the shuttle winding 3, that is, every half rotation of the shuttle winding 3. In addition, the turning angle when stopping the rotation of the shuttle winding 3 is the wire 1
Is set in advance in accordance with the lamination thickness of the wire 1. The difference between the inner and outer circumferences of the wire 1 is calculated and set at a predetermined value, for example, a turning angle of 4 mm.

Further, the taping operation of the taping device 9 will be described with reference to FIGS. In the taping device 9, when the speed of the wire 1 passing through the hole 9b is constant, the taping pitch can be changed by changing the rotation speed of the turntable 9a. Therefore, as shown in FIG. 6, a wide taping pitch portion 20 and a narrow taping pitch portion 21 each having a predetermined length can be formed by alternately changing the taping pitch for each predetermined length.

For example, when taping a portion of the strand 1 wound around the straight portion 3b of the shuttle winding 3, the turntable 9a is rotated at a rotation speed at which the taping pitch becomes 1/2 (wide taping pitch portion 20). Shuttle winding 3 corner
When taping the portion of the wire 1 wound around 3a, the turntable 9a is rotated at a rotation speed at which the taping pitch is 3/4 (the narrow taping pitch portion 21). As a result, as shown in FIG. 7, a state is obtained in which the corner portions 3a of the shuttle winding form 3 are taped at a narrow pitch.

By repeating the above operation continuously a predetermined number of times, a shuttle-shaped coil is formed.

In the forming operation of the shuttle coil in the apparatus of the present invention, the transfer position of the strand 1 and the shuttle winding 3
Since the winding position of the reel 1 is kept substantially constant, the bent portion formed in the wire 1 when the shuttle winding form 3 is erected by the apparatus shown in FIG. 9 is hardly seen, and the bent portion is repaired. Even in this case, the work can be performed at the lowest position in the rotation range of the shuttle winding form 3, which is safe. In the apparatus according to the present invention, the inclined tables 13a and 13b and the work table 12 shown in FIG. 9 are unnecessary.

The rotational speed of the rotating unit 15a and the moving speed of the moving device 15b are both changed and synchronized by the N / C device so that the moving speed of the wire 1 sent to the winding machine 15 is constant. In particular, the coil feeder 7
In addition, the operation can be performed without causing excessive force between the winding machines 15, so that the maintenance of the device can be simplified and the number of repairs can be reduced.

Further, by individually operating the clamps 16a, 16b, 16c and 16d to press the strand 1 against the surface of the shuttle winding 3, the strand 1 is brought into close contact with the shuttle winding 3 and is wound. Looseness of the strand 1 can be reduced. Therefore, the repair work by the manual work of the worker is reduced.

The wire drum 4 is provided with a tension device 18,
Interlocking with the turning angle of the shuttle winding 3, the strand holding device 17
In addition, since the coil feeder 7 is operated, coil forming can be performed while automatically removing slack of the strand 1 on the inner peripheral side during winding. Thereby, it is possible to eliminate the necessity of the slack removal work by the operator manually.

In the taping device 9, since the taping pitch in the corner portion 3a can be narrowed, the interval between the insulating tapes 10 is increased because the winding length of the outer periphery of the strand 1 is longer than that of the inner periphery. Even if it is shifted, strand 1
Can be prevented from being exposed. Therefore, a predetermined insulation property can be reliably obtained, and an operator does not need to perform taping repair work.

In the above-described embodiment, the taping device 9 has a structure in which the taping pitch varies depending on the winding position of the shuttle winding form 3. However, the taping device 9 has a narrower portion than the portion that contacts the high-voltage portion when the coil is used. The configuration may be such that the taping pitch portions 21 correspond to each other. In this case, a coil having particularly excellent insulation properties can be obtained.

Embodiment 2 FIG. 8 is a partial front view showing the coil forming apparatus according to the second embodiment. In the present embodiment, the clamps 16a, 16b, 16c,
A strand correction device 22 is provided instead of 16d. Wire straightening device
The shuttle winding 3 includes a correction table 22a below the shuttle winding 3 along the transfer direction of the strand 1 and a drive mechanism 22b including a hydraulic device for moving the correction table 22a up and down. It is possible to press the strand 1 upward, that is, toward the shuttle winding 3 with a predetermined pressure smaller than the rotational force. Other configurations are the same as those of the first embodiment, and illustration and description are omitted.

The strand 1 which has been taped in the same manner as in the first embodiment and has exited the strand holding device 17 is always wound up by a predetermined upward force when it is wound up by the shuttle winding form 3. Pressed to 3. Therefore, since the wire 1 is wound while abutting on the surface of the shuttle winding 3 without being lifted from the surface thereof, it is possible to eliminate the correction work by the hammering work of the operator.

[0053]

As described above, in the coil forming apparatus according to the first and third aspects, the winding position of the wire into the winding form and the transfer speed of the wire are kept substantially constant. It can be operated without causing excessive bending between the transfer device and the winding machine that rotates the winding form, simplifying maintenance of the device and reducing the number of repairs. Is obtained.

In the coil forming apparatus according to the second aspect, the wire can be closely attached to the winding form to reduce the looseness of the wire at the time of winding. Therefore, the repair work by the manual work of the worker is reduced.

In the coil forming apparatus according to the fourth aspect, the coil can be formed while automatically removing the slack of the wire on the inner peripheral side during winding. Thereby, it is possible to eliminate the necessity of the slack removal work by the operator manually.

In the coil forming apparatus according to the fifth aspect, the slack removing operation according to the third aspect is reliably performed, and the element wire can be returned to a straight line.

In the coil forming apparatus according to the sixth aspect, taping can be performed at a desired taping pitch in accordance with the rotation angle of the winding form. Thus, the present invention has excellent effects, such as preventing the exposure of the resin, ensuring the predetermined insulation, and eliminating the need for the operator to perform taping repair work.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a coil forming apparatus according to a first embodiment.

FIG. 2 is a front view showing the operation of the shuttle winding type shown in FIG.

FIG. 3 is a front view showing the operation of the clamp shown in FIG. 1;

FIG. 4 is a front view showing the operation of the clamp shown in FIG. 1;

FIG. 5 is a schematic diagram illustrating the operation of the coil feeder and the wire holding device shown in FIG.

FIG. 6 is a schematic diagram showing a taping state by the taping device shown in FIG. 1;

FIG. 7 is a view showing a state in which an element wire taped by the taping device shown in FIG. 1 is wound up.

FIG. 8 is a schematic front view showing a main part of the coil forming apparatus according to the second embodiment.

FIG. 9 is a schematic front view showing a conventional coil forming apparatus.

FIG. 10 is a view showing a winding operation by the shuttle winding form shown in FIG. 9;

FIG. 11 is a diagram illustrating slackening of a wire in a conventional device.

[Explanation of symbols]

1 strand, 3 shuttle winding type, 4 strand drum, 6 focusing unit, 7 coil feeding device (transfer device), 9 taping device, 9a rotary table, 10 insulating tape, 15 winding machine, 15
a Rotating unit, 15b moving device, 16a, 16b, 16c, 16d clamp, 17 strand holding device, 18 tension device (anti-rotational force applying device), 19 control unit, 22 strand straightening device, 155 drive unit.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masago Yamashita 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Corporation (72) Inventor Osamu Tanaka 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation

Claims (6)

[Claims] 1. A converging section for converging a plurality of strands, a transfer device for transferring the condensed strands in the longitudinal direction of the strands while sandwiching the plurality of strands, and a plurality of strands sent by the transfer device. A taping device for taping an insulating tape in a lump on a wire, a winding form for winding the element wire taped by the taping device, rotating means for rotating the winding form in a predetermined plane, and Moving means for moving the winding form, wherein the rotating means and the moving means cooperate to keep the winding position of the wire constant, and to make the transfer speed of the wire constant during winding. A coil forming apparatus wherein the winding form is rotated and moved at a variable speed. 2. The coil forming apparatus according to claim 1, further comprising means for automatically pressing the wire wound into a winding form onto the winding form according to the rotation angle of the winding form. 3. A plurality of element drums each having a plurality of element wires wound thereon, and a plurality of element drums provided on each element drum, and a counter-rotating force for applying a predetermined anti-rotational force in a direction opposite to a direction in which the elements are drawn out. The coil forming apparatus according to claim 1, further comprising a rotational force applying device. 4. A means for opening / closing a holding state of a transfer device, a holding device for holding the taped wire slidably / impossibly during transfer of the wire into a winding form, A control unit for stopping the rotating means and the moving means when the winding is rotated to a predetermined angle, setting the holding device to a non-slidable closed state, and setting the transfer device to an unclampable open state. ,
4. A structure in which, when the holding device is in a closed state and the transfer device is in an open state, the wire is rewound by the anti-rotation of the wire drum by the anti-rotational force applying device. The coil forming apparatus as described in the above. 5. Each of the anti-rotational force applying devices is configured such that the tension applied to the wire wound on the inner peripheral side during winding into a winding form is greater than the tension applied to the wire wound on the outer peripheral side. The setting is set.
The coil forming apparatus as described in the above. 6. A taping device has a hole for passing a wire transferred by a transfer device and an insulating tape wound thereon, and rotates on an axis substantially parallel to a passing direction of the wire,
And a roller for revolving around the hole and means for automatically changing the revolving speed of the roller according to the rotation angle of the winding. Coil forming equipment.