JP2997450B1 - Stripping device and coil for coil insulation coating - Google Patents

Abstract

An object of the present invention is to provide an apparatus and a coil for stripping a coil insulating film, which can perform stripping work easily and at low cost. A nozzle (9) for guiding a wire (6) to a coil bobbin (5).
The wire 6 is sandwiched from both sides by a pair of horn members 22A, 22B at the tip of a pair of horn members 22A, 22B to which vibration is applied from the ultrasonic vibration device 21, and the ultrasonic waves of the contact portions 23A, 23B are provided. Wire 6 with vibration
Is peeled off. In the section-wound bobbin, the wire 6 is wound around a plurality of flanges 31 provided on the coil bobbin 30 for a predetermined turn, and the insulating film of the wire wound around the flange 31 is movable in a three-dimensional direction. The exfoliation was performed by a horn member 42 to which vibration was applied by an ultrasonic vibration device 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a peeling device provided in a winding device for peeling off an insulating film at a predetermined position on a wire.

[0002]

2. Description of the Related Art In a winding apparatus for manufacturing a coil by winding a wire on a coil bobbin, an end of the coil is wrapped around a terminal of the coil bobbin after a wire insulating coating is peeled off. The coil is electrically connected at this terminal.

[0003] In such a stripping operation of the wire insulating film,
Conventionally, a mechanical method of shaving an insulating film with a file or a cutter, a method of melting the insulating film by heating with a heater or a laser, a chemical method of removing the insulating film with a solvent, and the like have been used.

[0004]

However, such conventional methods for stripping a wire insulating film have the following problems.

First, it is difficult to adjust the pressure applied to a file or a cutter by a mechanical peeling method using a file or a cutter. For this reason, when the pressure is too strong, the peeling work is performed too deeply, and the wire is easily broken.
Conversely, when the pressure is too weak, the insulating coating may not be sufficiently peeled off. Also, the pressure applied to the file or cutter needs to be changed according to the diameter of the wire,
It was troublesome.

Further, in the peeling method by heating, if a heater is used, the heater is likely to be disconnected, which requires labor and cost for replacement. In addition, it is necessary to remove the resin of the insulating coating on the heater surface. If it is removed afterwards, the maintenance will take too much time. On the other hand, if a laser is used, the laser device is expensive and costly.

In addition, the chemical stripping method requires complicated operations such as ensuring the safety of handling the solvent and preventing corrosion of the stripped portion due to a chemical change. Would.

[0008]

[0009]

The present invention has been made in view of such a problem, and an object of the present invention is to provide a coil insulating film peeling apparatus and a coil capable of performing a peeling operation easily and at low cost.

[0011]

According to a first aspect of the present invention, there is provided a winding device for manufacturing a coil by winding a wire around a core,
In a coil insulating film peeling device for peeling off an insulating film at a predetermined position of a wire constituting a coil, a vibration generating means for generating vibration of a frequency in an ultrasonic region, and a wire peeling operation
And a pair of vibrating members to which a position to be performed is sandwiched from both sides and vibration is applied from the vibration generating means.
The peeling operation is performed on each of these vibrating members.
Positions of wires that are to be deviated from each other
To form a contact portion to contact .

[0012]

[0013]

In the second invention, a wire is wound around the core and the core is wound.
Provided in the winding device that manufactures the coil, constitutes the coil
Coil insulating coating that peels off the insulating coating in place on the wire
Generation of vibration in the ultrasonic range in the peeling device
Vibration generating means, and vibration is generated from the vibration generating means.
A vibration member to be provided, and the vibration member
A contact that contacts a predetermined position where the wire stripping operation is to be performed.
When the contact part, the rotating member, and the rotating member rotate integrally,
Both circles can move in the direction perpendicular to the rotation axis of the rotating member
Disc member and formed at a position eccentric from the center of this disc member
Eccentric hole, and the eccentric hole on the rotation axis of the rotating member
Urging means for urging the disc member to be located at
And the wire rod passes through the eccentric hole to the vibrating member.
It was led to the opening formed as the contact portion.

In the third invention, the wire is wound around the core and the core is wound.
Provided in the winding device that manufactures the coil, constitutes the coil
Coil insulating coating that peels off the insulating coating in place on the wire
Generation of vibration in the ultrasonic range in the peeling device
Vibration generating means, and vibration is generated from the vibration generating means.
A vibration member to be provided, and the vibration member
A contact that contacts a predetermined position where the wire stripping operation is to be performed.
A contact portion and a tension for applying a predetermined tension to the wire rod;
And the vibration frequency and amplitude of the contact portion and the tension
Tension from the tensioning device to the wire
And control means for controlling the amount of wire stripping.

In a fourth aspect, the vibrating member is a wire rod.
Moving means for moving to a position that does not interfere with the movement.

In the fifth aspect, the winding core rotates around an axis.
Coaxially mounted on a free spindle,
Is provided between the wire source and the spindle, and
Control the stripping width of wire based on the amount of spindle winding
Control means were provided.

[0018]

[0019]

[0020]

In the first to fifth aspects of the present invention , the vibration applied by the vibration generating member causes the contact portion of the vibration member to vibrate at a frequency in the ultrasonic range, thereby making contact with the contact portion of the wire. The portion is locally heated, the insulating coating of this portion is peeled off, and the peeled insulating coating is dropped and removed by the fine vibration of the contact portion. Since the wire stripping operation is performed by the ultrasonic vibration of the contact portion in this manner, the amount of peeling can be appropriately adjusted by changing the frequency and amplitude of the ultrasonic vibration of the contact portion. It can easily respond to changes in diameter. Further, since the contact portion can be configured to be small and can be accurately applied only to the position to be peeled, the positional accuracy of the peeling operation can be increased. Further, since the heated portion of the wire is limited to a narrow area in contact with the contact portion, no adverse effect is caused on other portions of the wire. In addition, since the heating by the contact portion is temporary and is not always in a heating state, maintenance work such as removal of an insulating film adhered to the contact portion can be extremely easily performed, and the peeling device is always kept clean. The winding work can be performed in a favorable working environment. Further, since the peeling device can be constituted by the vibration generating means and the vibration member, it is inexpensive, can be reduced in size, and the cost and space of the device can be reduced.

In the first aspect, the wire is peeled from both sides by the pair of vibrating members, so that a wide range of peeling work can be efficiently performed.

Further , in the first aspect, the contact portions of the vibrating member come into contact with the wire at a position deviated from the back, so that the vibrations of the pair of contact portions do not interfere with each other and are appropriately applied from both sides. Peeling is possible.

In the second invention , when the rotating member rotates,
The disc member moves so that the center is on the rotation axis of the rotating member against the urging means, the wire inserted into the eccentric hole is inclined obliquely, and the outer circumference of the wire is the inner circumference of the opening formed in the vibration member. The surface comes into contact sequentially over the entire circumference. Therefore, the stripping operation of the insulating film on the entire circumference of the wire is automatically performed with a simple configuration.

[0025] In the third aspect, the amount of peeling of the wire is reduced by the amount of contact.
In addition to frequency and amplitude, from tensioning device to wire
Peeling is controlled based on the applied tension
The quantity can be controlled precisely.

In the fourth invention, if the peeling operation is not performed,
(For example, during winding work)
To move the contact part of the vibrating member and the wire.
Contact can be reliably broken, and the vibrating member and wire
You can not.

In the fifth aspect, the strip width of the wire is a
Is controlled based on the amount of wire wound around the wire.
Peeling can be performed with a precise width, and for peeling of a small width
Can be easily handled.

[0028]

[0029]

[0030]

[0031]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a first embodiment of the present invention.

As shown, in the winding device 1,
The spindle support 3 installed on the base 2 is provided with a plurality of spindles 4 (only two spindles 4 are shown in FIG. 1). These spindles 4 are driven to rotate around their axes. By this rotation, the coil bobbins 5 coaxially mounted on the respective spindles 4 rotate, and the wire 6 is wound around the outer periphery of the coil bobbins 5. ing.

A rail 13 extending in the left-right direction is fixed on the upper part of the spindle support 3. This rail 13
A peeling device support 14 is provided on the upper side, and is movable along the rail 13 by driving a cylinder (actuator) 15. The peeling device support table 14 is provided with a peeling device 20.

The same number of wires 6 as the spindles 4 are unreeled from a wire source (not shown), are given a predetermined tension by a tension device 7, and are then provided with pulleys 8 provided on the base 2 via a relay member. Peeling device 2
After passing through 0, it is guided to the nozzle 9. The peeling device 20 will be described later in detail.

The same number of nozzles 9 as the spindles 4 and the wire rods 6 are mounted on a nozzle support shaft 10 extending in the horizontal direction, and are arranged substantially above each spindle 4. The nozzle support shaft 10 is supported on a support pillar 11 that is vertically expandable and contractable and movable in the front-rear and left-right directions. Thereby, the nozzle 9
Is movable in a three-dimensional direction together with the expansion and contraction and longitudinal movement of the nozzle support shaft 10 and the lateral movement of the nozzle support shaft 10.

The tip of the wire 6 fed from the nozzle 9 is hanged on a discarding pin 12 in front of the spindle 4. In this state, the nozzle 6 is moved in a three-dimensional direction so that the wire 6 is 5A. After the predetermined portion of the wire 6 (the winding start end of the coil) is wrapped around the terminal 5A, the nozzle 9 is moved in the axial direction (front-back direction) of the spindle 4 while rotating the spindle 4.
, The wire 6 is wound around the coil bobbin 5 in an aligned state. After the completion of the winding on the coil bobbin 5, the winding end end is wrapped around the terminal 5A different from the winding start end.

The peeling device 20 is a device for peeling off the insulating coating on the portion of the wire 6 wrapped around the terminal 5A as shown in FIG. 2. As shown in FIG. 2, the wire 6 penetrates through the hollow portion on the central axis. A cylindrical ultrasonic vibration device 21 is provided. A sufficient size is ensured in a hollow portion of the ultrasonic vibration device 21 so that the ultrasonic vibration device 21 does not touch the wire 6 even when the ultrasonic vibration device 21 vibrates.

On the side of the ultrasonic vibration device 21, there is formed a clearance groove 24 for cutting the ultrasonic vibration device 21 in the vertical direction. Thus, when the peeling device support 14 is moved by driving the cylinder 15, the wire 6 housed in the hollow portion of the ultrasonic vibration device 21 comes out of the escape groove 24, and the peeling device 20 is moved from above the nozzle 9. It can be retracted, and when the peeling operation is not performed (for example, during the winding operation on the coil bobbin 5), the contact portions 23A, 23
Interference between B and the wire 6 can be reliably prevented.

Below the ultrasonic vibration device 21, a pair of horn members 22A and 22B are provided. These horn members 22A and 22B extend from a common root portion attached to the lower end surface of the ultrasonic vibration device 21 so as to sandwich the wire 6 hanging from the ultrasonic vibration device 21 from both left and right sides. . Further, these horn members 22
The tips of A and 22B are claw-shaped contact portions 23A and 23B bent toward the wire 6 side, respectively.
It is in contact with the wire 6.

The ultrasonic vibration device 21 is provided with a horn member 22A, an ultrasonic oscillator (not shown) provided therein.
The vibration of the frequency in the ultrasonic range is applied to 2B. Due to this vibration, the contact portions 23A and 23B peel off the insulating coating on the outer periphery of the wire 6. Here, the horn members 22A and 22B amplify the amplitude of the vibration from the ultrasonic vibration device 21 at a predetermined ratio and transmit the amplified amplitude to the contact portions 23A and 23B.

As described above, the pair of horn members 22A, 22A
By peeling the wire 6 from both sides using 2B, a wide range of peeling work can be efficiently performed.

Further, by rotating the coil bobbin 5 (spindle 4) at an appropriate angle while the horn members 22A and 22B are vibrated to wind the wire 6 into a predetermined length, the wire 6 is stretched over the width of the predetermined length. Can be peeled.

The lengths of the left and right horn members 22A, 22B are slightly different, and the contact portions 23A, 23B
Are in contact with the wire 6 when they are displaced from each other. Accordingly, the vibrations of the contact portions 23A and 23B can be appropriately separated from both sides without interfering with each other. The displacement of the contact portions 23A and 23B is set to a minimum necessary so that a large displacement does not occur at the peeling positions on both sides of the wire 6.

In this embodiment, the horn member 22
A and 22B are integrated at the root and vibrate integrally. However, the present invention is not limited to such a form, and the horn members 22A and 22B are configured as left and right separate bodies, It may be possible to vibrate in a different manner.

Although the peeling device 20 is provided above and separated from the nozzle 9, it may be formed integrally with the nozzle 9.

Next, the operation will be described.

In the winding device, the wire 6 fed from the wire source is guided to the peeling device 20 via the tension device 7 and the pulley 8, and is provided in the peeling device 20 at a predetermined position (for example, at the winding start end of the coil and at the predetermined position). At the position corresponding to the winding end), the insulating coating on the outer periphery is peeled off. The wire 6 after the stripping operation is guided from the nozzle 9 to the coil bobbin 5 and wound around the coil bobbin 5.

In this case, in the peeling device 20 of the present invention, the horn member 22 that vibrates at a frequency in the ultrasonic range is used.
At the portions of the tips A and 22B that come into contact with the contact portions 23A and 23B, the insulating film is peeled off by being locally heated, and at the same time, the peeled insulating film is dropped and removed by the fine vibration of the contact portions 23A and 23B. You. Such a stripping operation is performed simultaneously with the winding of the wire 6 around the coil bobbin 5, and the wire 6 is stripped over a width corresponding to the winding length.

As described above, according to the present invention, since the stripping operation of the wire 6 is performed by the ultrasonic vibration of the contact portions 23A and 23B, the vibration of the contact portions 23A and 23B is not only reduced with the tension applied by the tension device 7. By changing the frequency and amplitude, the amount of peeling can be freely adjusted, and an appropriate peeling operation can always be performed. Further, even if the diameter of the wire 6 changes, it can be easily handled.

Further, since the contact portions 23A and 23B can be configured to be small and can be accurately applied only to the position to be peeled, the positional accuracy of the peeling operation is high. Therefore, in conjunction with the control of the winding amount of the wire 6 on the coil bobbin 5, the wire 6 can be peeled at an accurate position and with an accurate width, and can easily cope with, for example, a slight width. it can.

The heated portion of the wire 6 is the contact portion 2
Since it is limited to a narrow range in contact with 3A and 23B, there is no adverse effect on other portions of the wire 6.

Since the heating by the contact portions 23A and 23B is temporary and is not always in a heating state, maintenance work such as removal of the insulating film adhered to the contact portions 23A and 23B can be performed very easily. In addition, since the peeling device 20 is always kept clean, the winding operation can be performed in a favorable working environment.

The peeling device 20 including the ultrasonic vibrating device 21 and the horn members 22A and 22B is inexpensive.
The size can be reduced. Therefore, cost reduction and space saving of the peeling device 20 can be achieved.

FIGS. 3 to 5 show a second embodiment of the present invention.

The winding device 1 according to this embodiment has substantially the same basic configuration as the winding device 1 according to the first embodiment shown in FIG. Is provided with a peeling device 50. That is,
In the winding device 1 of the present embodiment, the wire 6 fed from the wire source 16 is guided from the tension device 7 and the pulley 8 to the nozzle 9 via the peeling device 50, and is wound around the coil bobbin 5 supported by the spindle 4. It is wound.

The peeling device 50 includes a rotating member 51 through which the wire 6 guided from the pulley 8 penetrates. Rotating member 5
1 is a support portion 5 extending horizontally from the peeling device support base 15.
2 and is rotatably supported, connected to a drive motor 53 via a belt 54, and driven to rotate.

The peeling device support 15 is provided with a vibration generator 70. The vibration generator 70 includes an ultrasonic vibration member 71 that can vibrate at a frequency in the ultrasonic range. An opening 72 having a threaded groove formed in the inner peripheral surface is formed at a tip end of the ultrasonic vibration member 71 extending below the rotating member 51. The wire 6 that has passed through the rotating member 51 is inserted into the opening 72 and is further guided to the nozzle 9. In addition, as described later, the inner peripheral surface of the opening 72 (the surface on which the thread-shaped groove is cut) serves as a contact portion with the wire 6.

As shown in FIG. 4, a disk member 56 is accommodated in the hollow portion of the rotating member 51. An eccentric hole 57 is formed at a position eccentric from the center of the disk member 56, and the wire 6 is inserted through the eccentric hole 57.

A pair of pins 58A, 58B penetrating the disk member 56 from the back surface to the surface is fixed to the disk member 56 on both sides of the center and the eccentric hole 57. Further, guide grooves 59A and 59B are formed in the hollow portion of the rotating member 51 so as to be located above the disk member 56.
The guide grooves 60A and 60B are respectively formed so as to be located below the guide grooves 59A and 59B.
0A, 60B. Thereby, the disk member 56
Are guided and moved in a direction along these guide grooves (a direction orthogonal to the rotation axis of the rotating member).

A spring 61 is accommodated in the hollow portion of the rotating member 51, and the disk member 56 is guided to the guide grooves 59A and 60A.
It is urged to the A side. Thus, when the rotating member 51 is not rotating, the eccentric hole 57 of the disk member 56 is located exactly on the rotation axis of the rotating member 51, and the wire 6 is straight toward the opening 72 of the ultrasonic vibration member 71. Is to be drooped.

On the other hand, as shown in FIG. 5, when the rotating member 51 rotates, the disk member 56 rotates together with the rotating member 51, and the disk member 56 has a spring 61 so that the center thereof is located on the rotation axis of the rotating member 51. Move against. As a result, the eccentric hole 57 deviates from the rotation axis of the rotation member 51 and revolves around the rotation axis. As a result, the wire 6 going from the eccentric hole 57 to the opening 55a revolves around the rotation axis in a state of being inclined obliquely, and the outer circumference of the wire 6 contacts the inner circumferential surface of the ultrasonic vibration member opening 72 over the entire circumference. To go. in this case,
Since the ultrasonic vibration member 72 vibrates at a frequency in the ultrasonic range, the insulating film on the outer periphery of the wire 6 is automatically peeled off over the entire periphery by the groove on the inner periphery of the opening 72.

In order to avoid interference between the wire 6 and the ultrasonic vibration member 71 during the winding operation, the ultrasonic vibration member 71 may be configured to be movable. In this case, a part of the opening 72 of the ultrasonic vibration member 17 is cut off,
Can be opened and closed, or the like, so that the wire 6 escapes outside the opening 72.

[0064]

[0065]

[0066]

[0067]

[0068]

[0069]

[0070]

[Brief description of the drawings]

FIG. 1 is a perspective view of a winding device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a side view of a winding device according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing the peeling device.

FIG. 5 is a sectional view showing the peeling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding device 3 Spindle support 4 Spindle 5 Coil bobbin 6 Wire 7 Tension device 9 Nozzle 13 Rail 14 Peeling device support 15 Cylinder 20 Peeling device 21 Ultrasonic vibration device 22A Horn member 22B Horn member 23A Contact part 23B Contact part 24 Escape Groove 30 Coil bobbin 31 Flange 41 Ultrasonic vibration device 42 Horn member 50 Peeling device 51 Rotating member 53 Drive motor 56 Disk member 57 Eccentric hole

Claims (5)

(57) [Claims] 1. A coil insulating film peeling device provided in a winding device for winding a wire around a core to produce a coil, wherein the insulating film is peeled off a predetermined position of a wire constituting the coil. Between both sides of the vibration generating means for generating vibration of the frequency and the position where the wire stripping work is to be performed
And a pair of vibrating members to which vibration is applied from the vibration generating means, and the peeling operation is performed on each of these vibrating members.
To the wire at the predetermined position to be shifted
An apparatus for stripping a coil insulating film, wherein a contact portion to be touched is formed . 2. A winding for manufacturing a coil by winding a wire around a winding core.
A wire device that is provided in a wire device and peels off an insulating coating at a predetermined position of a wire material constituting a coil.
The separation unit that coil insulation coating, the vibration member a vibration generating means for generating a vibration of a frequency in the ultrasonic range, which is the vibration from the said vibration generation means is applied
Then, the exfoliation work of the wire formed on the vibrating member is performed.
A contact portion that contacts a predetermined position to be rotated , a rotating member, and a rotation of the rotating member while rotating integrally with the rotating member.
A disk member movable in a direction perpendicular to the axis, and an eccentric formed at a position eccentric from the center of the disk member
Hole and this eccentric hole is positioned on the rotation axis of the rotating member.
A biasing means for biasing the disk member, wherein the wire rod contacts the vibrating member through the eccentric hole.
That it is guided to the opening formed as a part.
Characteristic coil insulation film peeling device. 3. A winding for manufacturing a coil by winding a wire around a winding core.
Line equipment, Peel off the insulation coating at the specified position of the wire constituting the coil
In the coil insulation film stripping device, Vibration generating means for generating vibrations at a frequency in the ultrasonic range, A vibration member to which vibration is applied from the vibration generating means
When, The wire is peeled off from the vibrating member.
A contact portion for contacting a predetermined position to be provided; A tension device for applying a predetermined tension to the wire rod
When, The frequency and amplitude of the contact portion and the tension device
Of the wire based on the tension applied to the wire
Characterized by comprising control means for controlling the amount.
Stripping device for insulating film. 4. claims, characterized in that it includes moving means for moving the said vibration member to a position that does not interfere with the wire
The peeling device for a coil insulating film according to any one of claims 1 to 3 . Wherein said core is coaxially attached to the shaft around a rotatable spindle, the peeling device is provided between the spindle and the wire supply source, the wire on the basis of the winding amount of the spindle The apparatus for stripping a coil insulating film according to any one of claims 1 to 4 , further comprising control means for controlling a strip width.