JP2001229833A - Coil separating device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil separating device and method capable of simply separating coils from the core without fail. SOLUTION: The coil separating device separating conductors from the deflection yoke for the cathode-ray tube comprises a retention part 12 retaining the core 20A and the cutting structure 14 cutting the coil 24 of the core retained at the retention part. The cutting structure 14 is equipped with the cutter 16 and the transfer part 18 serving in transferring and positioning the cutter to the coil side of the core and in further transferring the cutter along the shape of the core in order for the cutter 16 to cut the coil 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deflection yoke in which a conductor wire coil is wound around a core. The deflection yoke deflects an electron beam to form an image on the surface of a cathode ray tube. The present invention relates to a coil separating device and a coil separating method for separating wires.

[0002]

2. Description of the Related Art A monitor device of a television receiver or a computer device is a cathode ray tube (CRT ... Cathod).
e Rey Tube). In this type of equipment provided with a cathode ray tube, a deflection yoke is attached to the neck of the cathode ray tube. The deflection yoke includes a vertical deflection coil and a horizontal deflection coil formed of a ferrite core, a copper wire, or the like. The deflection yoke deflects an electron beam to form an image on a tube surface.

[0003] The problem of disposing of this type of cathode ray tube has been discussed, and recycling of ferrite cores, deflection coils, and the like has become a major issue. A television receiver or a monitor device has many mounting substrates, a casing made of plastic, a cathode ray tube (cathode tube) made of glass in a casing, a deflection yoke wound with a copper wire, and the like. When these materials and parts are recycled, it is necessary to separate and collect the parts and materials having different materials. The deflection coil of the deflection yoke has a weight ratio of 40 at the deflection yoke.
% Is copper, which is a resource that can be used effectively.

[0004]

The deflection yoke is a composite part of a copper wire, ferrite (iron) and plastic, and cannot be reused by itself, but it takes time for workers to recycle it. Has been dismantled. There is a method of processing at the copper mine base without dismantling, but ferrite is an impurity at the time of copper recovery, and processing costs are required. For example, a method of disassembling a toroidal winding deflection coil after disassembling the deflection yoke has been an issue. In the toroidal winding deflection coil, a copper wire is wound around a ferrite core, and the winding is fixed with resin so as not to be displaced.

[0005] It is possible to crush the ferrite core of the deflection coil with a pulverizer and then separate it into ferrite (iron) and copper wire with a magnetic separator. However, because the ferrite is hard,
The blade of the crusher will be damaged. In addition, since the copper wire is wound around the ferrite, the ferrite remains in the copper winding unless the ferrite is pulverized into very fine pieces and the copper wire is not cut short. Further, the copper wire that cannot be cut short is wound around the rotating shaft of the crusher, which causes a failure of the crusher.
It is possible to grind the ferrite core of the deflection coil with a press or the like. Similarly, ferrite fragments remain in the copper winding. Since the ferrite and copper wire of the deflection coil are fixed by resin, when the copper wire and ferrite (iron) are separated by a magnetic separator after grinding, the part where the copper wire and ferrite are fixed with resin. Can not be sorted well, and the copper wire is mixed into the ferrite side or the ferrite enters the copper wire side, so that the separating effect is reduced.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a coil separating apparatus and a coil separating method capable of simply and reliably separating a coil from a core.

[0007]

According to a first aspect of the present invention, there is provided a deflection yoke in which a coil of a conductor wire is wound around a core for deflecting an electron beam to form an image on the surface of a cathode ray tube. A coil separating device for separating the conductor wire from the deflection yoke, comprising: a holding unit that holds the core; and a cutting mechanism unit that cuts the coil of the core held by the holding unit. The cutting mechanism is configured to move the cutter and the cutter to the coil side of the core to position the cutter, and to move the cutter along the shape of the core to cut the coil by the cutter. And a moving unit.

According to the first aspect, the holding portion holds the core.
The cutting mechanism cuts the coil of the held core. The moving section of the cutting mechanism moves the cutter to the coil side of the core, positions the cutter, and moves the cutter along the shape of the core to cut the coil by the cutter. Thus, the coil can be reliably cut and removed from the core simply by moving the cutter along the shape of the core.

According to a second aspect of the present invention, in the coil separating device according to the first aspect, the core is a ferrite core, and the holding portion has a clamper for detachably holding the skirt portion of the core. According to the second aspect, the clamper of the holding portion removably sandwiches the skirt portion of the core.

According to a third aspect of the present invention, in the coil separating apparatus according to the first aspect, the moving unit moves the cutter to the coil side of the core, and a driving unit for driving the cutter to rotate. And a rotation operation unit that moves the cutter along the shape of the core about the center axis of the core. In claim 3, the driving unit of the moving unit drives the cutter to rotate. The rotation operating unit moves the cutter toward the coil side of the core to position the cutter, and moves the cutter along the shape of the core about the center axis of the core.

According to a fourth aspect of the present invention, in the coil separating device according to the third aspect, the cutter is a rotary drive type wheel cutter.

According to a fifth aspect of the present invention, in the coil separating device according to the third aspect, the rotating operation section is configured to move the cutter toward the coil side of the core to position the cutter. It has a movement preventing portion for preventing contact with the moving member. According to the fifth aspect, when the cutter is positioned on the coil side of the core, the movement preventing section prevents the cutter from contacting the core. Thereby, the cutter and the core can be prevented from being damaged, and the coil can be smoothly separated by the cutter.

According to a sixth aspect of the present invention, in the coil separating device according to the fifth aspect, the rotary operation section moves the cutter toward the coil side of the core to position the cutter.
An operating mechanism, and a second operating mechanism for moving the cutter along the shape of the core about a center axis of the core. According to the sixth aspect, the first operating mechanism moves the cutter toward the coil side of the core to prepare the cutter. The second operating mechanism moves the cutter along the shape of the core about the center axis of the core.

According to a seventh aspect of the present invention, in the coil separating device according to the first aspect, the coil is a toroidal vertical deflection coil made of copper wire.

According to an eighth aspect of the present invention, in the coil separating device according to the first aspect, a heating unit is provided for heating a resin holding the coil so as not to be displaced by the core. In the eighth aspect, since the heating unit heats the resin, the coil can be easily removed from the core by heating the resin when the coil is separated by the cutter.

According to a ninth aspect of the present invention, there is provided a deflection yoke in which a coil of a conductor wire is wound around a core. A coil separating method for separating a conductor wire, wherein when the coil of the core held by a holding unit is cut by a cutting mechanism, the cutter of the cutting mechanism is moved to the coil side of the core for positioning. And a cutting step of cutting the coil by the cutter by moving the cutter along the shape of the core.

According to the ninth aspect, the holding portion holds the core.
The cutting mechanism cuts the coil of the held core. The moving section of the cutting mechanism moves the cutter to the coil side of the core, positions the cutter, and moves the cutter along the shape of the core to cut the coil by the cutter. Thus, the coil can be cut and removed from the core by moving the cutter along the shape of the core.

According to a tenth aspect of the present invention, in the coil separating method according to the ninth aspect, the core is a ferrite core, and the clamper of the holding portion removably sandwiches the skirt portion of the core. According to the tenth aspect, the clamper of the holding portion removably sandwiches the skirt portion of the core.

According to an eleventh aspect of the present invention, in the coil separating method according to the ninth aspect, the cutter of the moving part is rotationally driven to move the cutter to the coil side of the core for positioning. The cutter is moved along the shape of the core about the center axis of the cutter.

According to a twelfth aspect of the present invention, in the coil separating method according to the eleventh aspect, when the cutter is moved to the coil side of the core and positioned, the cutter is brought into contact with the core by a movement preventing portion. Prevent you from doing so.

According to a thirteenth aspect of the present invention, in the coil separating method according to the ninth aspect, the coil of the conductor wire is a toroidal vertical deflection coil and is a copper wire.

According to a fourteenth aspect of the present invention, in the coil separating method according to the ninth aspect, the resin holding the coil so as not to be displaced by the core is heated.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limits are given, the scope of the present invention is not limited to these modes unless otherwise specified in the following description.

FIG. 1 shows a preferred embodiment of the coil separating apparatus of the present invention. This coil separation device 10
Has a holding part 12 and a cutting mechanism part 14 roughly. The cutting mechanism 14 includes a cutter 16 and a moving unit 18.
have. The holding portion 12 is a core half 2 of the deflection yoke.
This is a portion that detachably holds 0A. Cutting mechanism 14
The moving portion 18 is a mechanism portion that moves the cutter 16 to the coil 24 side of the core half body 20A and causes the cutter 16 to cut the coil 24.

Before explaining the coil separating apparatus 10, the core half 20A and the coil 24 will be described first. FIG. 4 shows an example of a television receiver as an example of an electronic apparatus having a cathode ray tube. A television receiver 240 has a front cabinet 250 and a rear cabinet 260, and the front cabinet 250 and the rear cabinet A cathode ray tube C is arranged in the cabinet 260. This cathode ray tube C is connected to the circuit board 2
80, an electron gun 270, and a deflection yoke 300. The deflection yoke 300 deflects the electron beam to form an image on the tube surface 290 of the cathode ray tube C. As the deflection yoke 300, one having a structural example as shown in FIG. 5 can be employed. The deflection yoke 300 shown in FIG.
4, a neck pipe stopper 26 and the like. The coil 24
For example, a vertical deflection coil uses, for example, a copper wire. The surface of this copper wire is provided with an insulating coating.

The core 20 in FIG. 5 is integrally fixed by combining two half-core core halves 20A as shown in FIGS. 6 and 7, and stopping with a steel clasp 20B. . The core 20 has, for example, a substantially mortar shape or a funnel shape as shown in FIGS. 2. Description of the Related Art A deflection yoke is used in a television receiver or a computer display device that currently uses a cathode ray tube. The winding method of the deflection coil in the deflection yoke includes
There are saddle winding, section winding, and toroidal winding. In this toroidal winding, a coil 24 made of a copper wire is wound around a ferrite core 20.

As shown in FIGS. 6 and 7, the core 20 has a neck portion 20C and a skirt portion 20D. The neck portion 20C is a portion having a small diameter, and the skirt portion 20D
Has a larger diameter than the neck 20C.
The skirt portion 20D is also called a ferrite opening or the like, and a coil 24 is wound around the core 20 in a toroidal winding format as shown in FIGS. To prevent the coil 24 from shifting with respect to the core 20,
As shown in FIG. 5, the coil 24 is fixed to the core 20 by the thermoplastic resin portion 30. Resin part 30
Is, for example, a hot melt resin.

Returning to FIG. 1, the coil separating apparatus 10 shown in FIG.
4 is a device for cutting and separating the same. Holder 2
Has a clamper 34 as shown in FIGS. The clamper 34 includes two plate-shaped members 34A.
have. As shown in FIGS. 1 and 2, the two plate-shaped members 34 are mechanical parts for substantially detachably holding the skirt portion 20D of the core half 20A. Member 3 of clamper 34
For example, the skirt portion 20D may be automatically inserted by an activator, or the skirt portion 2 may be manually moved by moving the members 34, 34.
OD may be detachably inserted.

When the core half 20A is sandwiched by the clamper 34 of the holding portion 12, as shown in FIG.
The tilted intermediate portion 20E of 0A is held at a predetermined angle θ while being tilted with respect to the base member 40. In this holding state, the neck portion 20C of the core half 20A is oriented substantially in the vertical direction Z. Of course, the clamper 34 of the holding unit 12 may clamp any position in the vicinity of the skirt portion 20D and the vicinity thereof.

As shown in FIGS. 1 and 2, the neck portion 20C is held along the Z direction (vertical direction) so that the outer peripheral surface of the neck portion 20C and the operation of the cutter 16 are parallel. . As the cutter 16, a rotary drive type wheel cutter in which many normal blades are formed in the circumferential direction can be used. However, the cutter is not limited to this, and a cutting grindstone can be used.

Next, the moving section 18 of the cutting mechanism section 14 shown in FIGS. 1 and 2 will be described. The moving unit 18 is a device for positioning and guiding the cutter 16 to cut the coil 24 of the core half 20A. Moving part 18
Has a motor 40 as a drive unit for driving the cutter 16 to rotate, and a rotation operation unit 46. The rotation operation unit 46 moves and positions the motor 40 and the cutter 16 in the X direction, and moves the motor 40 and the cutter 16 along the R direction and the center axis CL as shown in FIGS. 1 and 3. It is designed to rotate and move.

The first operation mechanism section 50 of the rotation operation section 46 includes:
The motor 40 and the cutter 16 are moved and positioned in the X direction. The second operation mechanism section 60 of the rotation operation section 46 rotates the motor 40 and the cutter 16 in the R direction about the center axis CL as described above. First, the first operation mechanism 50 will be described. The first operating mechanism 50 has a slider 51, a guide 52, a motor 53, and a feed screw 54. The slider 51 is movable in the X direction along a guide 52, and a nut 55 of the slider 51 has a feed screw 5 of a motor 53.
4 are engaged.

When the motor 53 is operated, the slider 51 moves along the guide 52 and can be positioned. The slider 51 is provided with a stopper 56 as a movement preventing portion of the slider 51. The stopper 56 is provided with a sensor 57. When the stopper 56 collides with the neck portion 20C of the core half body 20A as shown in FIGS.
The detection signal S is sent to the control unit 100. When the detection signal S is sent to the control unit 100, the control unit 100 stops the operation of the motor 53. Thereby, the slide 51 stops moving along the X1 direction, and the cutter 16 can be positioned. In this positioning state, as shown in FIG. 2, the cutter 16 is located at a position for cutting the coil 24 near the neck portion 20C, but as shown in FIG. 2 and FIG. e.

The motor 40 is fixed on the slider 51, and the cutter 16 is detachably fixed to the output shaft 40A of the motor 40. Guide 52 shown in FIG.
The central axis CL passes through the hole 52H of the fixing bolt 5.
By loosening 2K, the guide 52 can manually position the center axis CL in the Z direction. The guide 52 and the central axis CL can be integrated by tightening a fixing bolt 52K.

Next, the second operating mechanism 6 shown in FIGS.
0 will be described. The second mechanism operation unit 60 is provided with a central axis C
By rotating L in the T direction by a predetermined angle, the cutter 16 is rotated.
Can be rotated in the direction R in FIG. The second operation mechanism section 60 includes a motor 61, a speed reducer 62, and a bearing 59. The rotation of the motor 61 is reduced by the speed reducer 62 to rotate the center axis CL in the T direction by a predetermined angle.
The setting of the predetermined angle can be set by, for example, the number of pulses given to the motor 61 by the control unit 100.
The central axis CL is located at the center of the core half 20A of the deflection yoke.

The coil separating apparatus 10 shown in FIG. 1 further has a heating section 70 for blowing hot air. This heating unit 70
Has a hot air outlet 72 and a hot air supply source 74. When hot air is supplied from the hot air supply source 74, the hot air outlet 72
By supplying the hot air to the resin portion 30 from above, the resin portion 30 can be melted.

Next, using the above-described coil separation device,
A method of separating the coil 24 from the core half 20A will be described with reference to FIG. In step ST1 of FIG. 10, first, the core half 20A of the deflection yoke in the state shown in FIG. 8 is manually or automatically clamped by the clamper 34 of the holding unit 12 as shown in FIGS.
In this case, the skirt portion 20D of the core half 20A and the vicinity thereof are sandwiched by the clamper 34. As a result, the core half 20A is held at an angle of the predetermined angle θ with respect to the base member 40, and the neck portion 20C is oriented in the Z direction (vertical direction).

Next, in step ST2 of FIG.
As shown in FIGS. 1 and 2, the cutter 16 is connected to the neck 20C.
The cutter 16 is positioned close to the coil 24 near the neck 20C of the core half body 20A in order to cut the coil 24 near the center. In this case, the slider 53 moves in the X1 direction by driving the motor 53 of the first operation mechanism unit 50 shown in FIG. This movement causes the stopper 56 to move the core half 2
The sensor 57 sends the detection signal S to the control unit 100 as shown in FIG. Thus, the control unit 100 stops driving the motor 53. In this manner, the cutter 16 is positioned proximately to cut the coil 24 near the neck 20C as shown in FIGS.

Next, moving to step ST3 in FIG.
The control unit 100 drives the motor 40 to control the cutter 1
6 rotates. When the control unit 100 drives the motor 61, the guide 52 causes the motor 40 and the cutter 16 to move along the R direction around the center axis CL, thereby causing the neck 2 to move.
It moves concentrically corresponding to the outer peripheral surface of 0C. Thereby, the portion 24A of the coil 24 near the neck portion 20C is formed.
Is being cut off. The state after the coil 24 has been cut is shown in FIG. 9, and a cut portion 24M of the coil 24 is formed near the coil 24A along the R direction.

Then, as shown in step ST3 of FIG. 10, at the same time as this cutting, or before or after the cutting, the control unit 100 operates the hot air supply source 74 of FIG. Thereby, hot air is blown from the hot air supply source 74 to the resin portion 30 through the hot air outlet 72. Thereby, the resin portion 30 is melted.

Next, moving to step ST4 in FIG.
Since the resin portion 30 is melted and the coil 24 is cut in this manner, as shown in FIG. 7, the coil 24 can be easily removed by hand or by machine from the core half 20A.

As described above, blowing the hot air to the resin portion 30 softens the resin portion 30 for fixing the coil half 20A. Easy to remove from 20A. The hot air supply source 74 is like a commonly used dryer, and a fan can be used to send out hot air.

As described above, since the central axis CL of FIG. 1 is located at the central axis of the held core half 20A, the cutter 16 does not contact the neck portion 20C about the central axis CL, and the coil 24A Only can be cut off.

Next, another embodiment of the coil separating device of the present invention will be described with reference to FIGS.
The coil separating device 110 shown in FIG. 11 and FIG.
Is different from the coil separating device 10 shown in FIG. 1 in that the moving operation in the X direction in the first operating mechanism 150 is manual, and the rotation in the R direction of the second operating mechanism 160 is also manual. The other points of the coil separating device 110 of FIGS. 11 and 12 are almost the same as those of the coil separating device 10 of FIGS. 1 and 2, and the description thereof will be applied.

In the first operating mechanism 150, a guide 152
, A slider 151 is provided. The slider 151 can be moved and positioned in the X direction along the guide 152 by loosening the fixing bolt 153.

The second operating mechanism 160 is fixed to the central axis CL by bolts 161 for fixing,
The guide 152 can be positioned in the Z direction. The slider 151 has a stopper 56 and a motor 40,
The cutter 16 is detachably attached to the output shaft 40A of the motor 40. From the core half 20A to the coil 24
When cutting the clamper 3
4 holds the skirt portion 20D of the core half body 20A. Then, when the worker loosens the fixing bolt 153 and moves the slider 151 along the guide 152, the stopper 56 hits the neck portion 20C. In this state, the operator tightens the bolt 153. Thus, the slider 151 can be fixed to the guide 152.

By loosening the bolt 161 of the second operating mechanism 160, the guide 152 has already been positioned in the Z direction.

Next, the operator rotates the motor 40 and the cutter 16 by a predetermined angle in the R direction via the bearing 159 integrally with the center axis CL with the guide portion 152.
This allows the rotating cutter 16 to cut the portion 24A of the coil 24 near the neck portion 20C as shown in FIG. In this case, since the cutter 16 has the stopper 156, the cutter 1
A space e is left between the neck 6 and the neck 20C. Also in this case, the control unit 100 operates the hot air supply unit 74 so that the hot air supply
The hot air is supplied to the resin section 30 via the. Thereby, the resin portion 30 is softened, and the cut coil 24 and the core half 20A are easily separated as shown in FIG.

In the above-described embodiment, the cut coil is used to cut the core half 20A using a tool such as a hand or pliers.
Is preferred. In the embodiment described above,
A motor is used for positioning and rotational movement.
However, the invention is not limited to this.
For example, a hydraulic cylinder or a pneumatic cylinder may be used.

In the embodiment of the present invention, the following effects can be obtained by dismantling the deflection coil of the toroidal winding system from the core. That is, the coil and ferrite of the copper wire can be disassembled in a short time and safely, and even if a thermoplastic resin is used, separation of the copper wire and iron (ferrite) is ensured, and resources can be reused. Also, since the cutter used does not contact the core, the life of the cutter is long,
Running costs are reduced. The copper coil and ferrite can be disassembled in a short time and safely by a toroidal winding type deflection coil in which a copper wire is wound around a core. By fixing a toroidal winding deflection coil in which a copper wire is wound around a core, the copper wire can be cut without crushing the core, and the ferrite core and the copper wire can be reliably separated.

The coil can be easily removed from the core by applying heat to the applied thermoplastic resin from the outside so that the coil of the copper wire does not deviate from the core of the ferrite due to transportation or vibration. The position of the cutter can be adjusted according to the size of the core and the coil can be cut, so that the coil can be cut according to various sizes of the core.

[0052]

As described above, according to the present invention,
The coil can be easily and reliably separated from the core.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a coil separation device of the present invention.

FIG. 2 is a side view having a cross section showing the structure of the coil separation device.

FIG. 3 is a plan view of the coil separating device.

FIG. 4 is an exploded view showing an example of a television receiver provided with a cathode ray tube having a deflection yoke.

FIG. 5 is a perspective view showing an example of a deflection yoke.

FIG. 6 is a perspective view showing an example of a core half of a deflection yoke.

FIG. 7 is a diagram showing an example of a core half and a cut coil.

FIG. 8 is a perspective view showing a core half and a coil before being cut.

FIG. 9 is a diagram showing a coil and a core half after being cut.

FIG. 10 is a flowchart showing an example of a coil separating method.

FIG. 11 is a perspective view showing another embodiment of the coil separation device of the present invention.

FIG. 12 is a side view having a cross section showing the coil separating device of FIG. 11;

[Explanation of symbols]

10 ... Coil separation device, 12 ... Holding unit, 14.
..Cutting mechanism section, 16 cutter, 18 moving section, 20 deflection yoke, 20A core half, 2
0C: Neck, 20D: Skirt, 24
..Coil, 34 ... clamper, 50 ... first operating mechanism, 60 ... second operating mechanism, 70 ... heating unit, 72 ... hot air outlet, 74 ... hot air Source, C
L: Central axis

Claims (14)

[Claims] 1. A deflection yoke in which a coil of a conductor wire is wound around a core, wherein the conductor wire is separated from a deflection yoke for a cathode ray tube for deflecting an electron beam to form an image on a tube surface of the cathode ray tube. A coil separation device, comprising: a holding unit that holds the core; and a cutting mechanism unit that cuts the coil of the core held by the holding unit. The cutting mechanism unit includes a cutter, A moving section for moving the cutter along the shape of the core by moving a cutter toward the coil side of the core, and cutting the coil by the cutter. Coil separation device. 2. The coil separation device according to claim 1, wherein the core is a ferrite core, and the holding portion has a clamper that detachably sandwiches a skirt portion of the core. 3. The moving unit includes: a driving unit configured to rotationally drive the cutter; and a moving unit configured to move the cutter to the coil side of the core to position the cutter, and the shape of the core about a central axis of the core. The coil separating device according to claim 1, further comprising: a rotary operation unit that moves the cutter along the axis. 4. The coil separation device according to claim 3, wherein the cutter is a rotary drive type wheel cutter. 5. The rotation operation section includes a movement preventing section for preventing the cutter from contacting the core when the cutter is moved to the coil side of the core and positioned. 4. The coil separation device according to 3. 6. The rotation operation section, wherein: a first operation mechanism section for moving and positioning the cutter toward the coil of the core; and the cutter along a shape of the core about a center axis of the core. The coil separation device according to claim 5, further comprising: a second operation mechanism that moves the coil. 7. The coil separation device according to claim 1, wherein the coil is a toroidal vertical deflection coil and is a copper wire. 8. The coil separation device according to claim 1, further comprising a heating unit for heating a resin holding the coil so that the coil is not shifted by the core. 9. A deflection yoke in which a coil of a conductor wire is wound around a core, wherein the conductor wire is separated from a deflection yoke for a cathode ray tube for deflecting an electron beam to form an image on a tube surface of the cathode ray tube. A coil separating method, wherein when the coil of the core held by the holding unit is cut by a cutting mechanism, a positioning step of moving the cutter of the cutting mechanism to the coil side of the core and positioning the cutter; A cutting step of cutting the coil by the cutter by moving the cutter along the shape of the core. 10. The coil separating method according to claim 9, wherein the core is a ferrite core, and the clamper of the holding portion detachably sandwiches the skirt portion of the core. 11. The cutter of the moving unit is rotationally driven to move the cutter toward the coil side of the core to position the cutter, and to move the cutter along the shape of the core about a center axis of the core. The coil separating method according to claim 9, which moves. 12. The coil separating method according to claim 11, wherein when the cutter is moved to the coil side of the core for positioning, the movement preventing portion prevents the cutter from contacting the core. 13. The method according to claim 9, wherein the coil of the conductor wire is a toroidal vertical deflection coil and is a copper wire. 14. The coil separating method according to claim 9, wherein a resin holding the coil so as not to be displaced by the core is heated.