JPH11186081A - Division device of wound core - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a division device of a wound core which is capable of dividing a division core well without enlarging the overall device, when a wound core constituted is divided by a one-turn cut method. SOLUTION: A wound core 11 constituted of a single-turn cut method is tilted and held by a tilting holding mechanism 38 keeps this state, a plurality of band steel materials 12 are slid in a width direction of the wound core 11 from the inner circumferential part of the wound core 11 through movement of a division head 18 and are divided as division cores 55. In the division, dead weight acts in a laminating direction and a width direction which is vertical to a laminating direction in the wound core 11, and especially since suitable pressure acts between layers in a lamination direction, the division core 55 can be divided properly. Since it is not necessary to provide a special fixing holding mechanism for fixing and holding the wound core 11 in the process, the division device 14 is not enlarged as a whole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a wound iron core formed by laminating a plurality of steel strips by a one-turn cutting method.
The present invention relates to a winding core dividing device for sliding a predetermined number of steel strips from an inner peripheral portion of the winding core to divide it as a divided core.

[0002]

Conventionally, a wound iron core 1 constructed by a one-turn cut system as shown in FIG.
Is provided. In FIG. 18, a wound iron core 1 is, for example, a band steel material 2 made of a silicon steel plate having a thickness of 0.2 to 0.35 mm.
Is repeatedly laminated and cut to a predetermined thickness each time the coil is wound one turn on a rectangular winding form, and the both ends are joined to each other to form a predetermined thickness. It is formed by forming so as to be located substantially in the middle, and thereafter performing annealing.

[0003] The step of inserting the wound iron core 1 constituted by such a one-turn cut method into a transformer coil has been performed as follows. That is, as shown in FIG. 19, a predetermined number of strip steel materials 2a are taken out as divided cores 4 from the inner peripheral portion 1a of the wound core 1, and then the taken out divided cores 4 are inserted as shown in FIG. The guide coil 5 is used to assemble the transformer coil 6 and the above operation is repeated a predetermined number of times, so that the entire wound core 1 is incorporated into the transformer coil 6.

[0004] By the way, the operation of taking out the divided core 4 from the wound core 1 has been performed using the arm 7 as shown in FIG. Specifically, the arm 7 is lowered from above the wound core 1 so as to be inserted into the inner peripheral portion 1 a of the wound core 1, and the extraction claw 8 formed at the distal end of the arm 7 becomes the divided core 4. The predetermined number of strips 2a are taken out as the split cores 4 by hooking them on a predetermined number of strips 2a and pulling them upward.

However, in this case, since the wound core 1 is generally not fixedly held, the arm 7 and the wound core 1 are not fixed.
Depending on the positional relationship between the arm 7 and the iron core 1 as shown in FIG. Therefore, as shown in FIG. 23, the split core 4 cannot be reliably split, or the split core 4 falls while the arm 7 is being pulled upward, and the split core 4
In addition, there is a problem that the core 1 cannot be taken out and the wound iron core 1 is damaged.

In order to fix and hold the wound iron core 1, it is conceivable to separately provide a fixed holding mechanism. However, in this case, there is a problem that the entire splitting device becomes large, and this is realized. There is a situation of poor sex.

[0007] The present invention has been made in view of the above circumstances, and its object is to reduce the size of the entire apparatus without increasing the size of the apparatus.
It is an object of the present invention to provide a winding core dividing device that can divide a divided core satisfactorily.

[0008]

According to the present invention, there is provided a device for dividing a wound iron core, wherein a plurality of strips wound substantially in an annular shape are laminated by a one-turn cutting method so as to be inclined with respect to a horizontal direction. An inclination holding mechanism that holds the core in an inclined state such that the angle is less than 90 °, and, in a state where the core is inclined and held by the inclination holding mechanism, in a width direction perpendicular to a laminating direction of the core. The present invention is characterized in that there is provided a dividing means for sliding a predetermined number of steel strips in the width direction of the wound core from the inner peripheral portion of the wound core by moving, thereby dividing the strip as a divided iron core.

According to the winding core dividing device having the above-described structure, the winding core formed by the one-turn cut system is configured to be held inclining by the tilt holding mechanism. The own weight acts in the width direction perpendicular to the direction, and in particular, an appropriate pressure acts between the layers in the laminating direction. Then, in that state, by dividing the predetermined number of steel strips in the width direction of the wound core from the inner peripheral portion of the wound core by the dividing means,
Since it was configured to be divided as a split iron core, in this division, as described above, in the wound iron core, an appropriate pressure acts between the layers in the laminating direction, and the own weight acts in the width direction. Accordingly, the split core can be split well. At this time, there is no need to separately provide a fixed holding mechanism to fix and hold the wound core, so that the entire apparatus is not enlarged.

In this case, in the winding core dividing apparatus having the above structure, the tilt holding mechanism is configured to transfer the remaining cores by the predetermined number in the stacking direction of the cores after dividing the divided cores. (Claim 2). Further, in the wound iron core dividing device having the above-described configuration, the dividing means may include a storage holding portion that stores and holds the end of the split iron core in a bent state (claim 3).

In the above-described device for dividing a wound core, the dividing means may have a thin tip and a sharply-pointed claw. Further, in the winding core dividing device having the above configuration, the claw portion of the dividing means may be configured to be replaceable in accordance with the number of strips to be divided as the divided core.

[0012] In the above-described device for dividing a wound core, the dividing means may be configured to stop moving when the divided core is slid by a predetermined sliding amount. . Further, in the winding core dividing device having the above-described configuration, it may be configured to include an expansion mechanism that expands the split core in the stacking direction after the split core is split (claim 7).

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. First, as shown in FIG. 2, a wound iron core 11 is the same as the wound iron core 1 described in the conventional example, and for example, a strip steel material 12 made of a silicon steel sheet having a thickness of 0.2 to 0.35 mm is formed into a rectangular shape. Each time a turn is wound around the winding die, cutting and joining both ends are repeated to form a predetermined thickness, and the one-turn cut iron core is joined to a substantially intermediate portion of one of the yoke portions. It is formed by forming so as to be positioned and then performing annealing.

The wound iron core 11 constructed as described above
In the dividing step, as shown in FIG. 3, the joining portion 13 is placed on the receiving base 15 which constitutes a part of the dividing device 14 such that the joining portion 13 is on the left side in FIG. I have.
Hereinafter, the dividing device 14 will be described.

Referring to FIG. 3, a cradle 15 of the dividing device 14 is provided.
A split head operating cylinder 16 is provided at the tip of a rod 17 of the split head operating cylinder 16.
Is installed. In this case, when the split head operating cylinder 16 is driven so that the rod 17 projects in the direction of arrow A1 in FIG.
5 so as to penetrate through the inner peripheral portion 11 of the wound iron core 11 described above.
a is moved in the direction of arrow A1 in FIG.

The distal end of the rod 20 of the extended head slide cylinder 19 is attached to the receiving base 15. The extension head slide cylinder 19 is provided on a link mechanism support 21, and the link mechanism support 21 is provided with an extension head operating cylinder 22. And, this extended head working cylinder 2
An expansion head 25 is attached to the distal end of the second rod 23 via a link mechanism 24 described in detail later. Also, guides 27, 27 are provided on the link mechanism support base 21 so as to follow a rail 26 attached to the support base 15.
Is provided.

In this case, when the extension head slide cylinder 19 is driven so that the rod 20 is retracted, the extension head slide cylinder 19, the link mechanism support base 21, and the extension head operating cylinder 22 are integrated to form a link. The inner peripheral portion 11a of the wound iron core 11 in FIG. 3 is moved so that the extension head 25, the link mechanism 24, and the rod 23 pass through the receiving base 15 while the guides 27, 27 of the mechanism support base 21 are guided by the rail 26. It moves in the direction of arrow A1.

Further, on the right side of the receiving table 15 in FIG. 3, a wound iron core slide mechanism 28 as a transfer mechanism is provided. The wound iron core slide mechanism 28 includes a wound iron core support plate 29, a gear 30, and a motor 31. A gear 32 is mounted on the tip of the rotating shaft 31a of the motor 31, and the gear 32
Is screwed. The rotating shaft 29 a attached to the wound iron core supporting plate 29 is supported by a supporting portion 33 provided on the upright portion 33.
a and is screwed through the gear 30 so as to be located on the rotation axis of the gear 30.

When the motor 31 is driven,
The driving force is transmitted to the gear 30 via the rotating shaft 31a and the gear 32, and the gear 30 rotates.
Is transmitted to the rotation shaft 29a of the wound iron core supporting plate 29, and the wound iron core supporting plate 29 moves in the directions of arrows B1 and B2 in FIG.

A swivel arm 34 is attached to a predetermined portion of the receiving base 15 via a swivel support shaft 35, and the swivel arm 34 is connected to a rod 37 of a swivel cylinder 36. Then, the rod 37 is moved from the state in which the cradles 15 are in the horizontal position shown in FIG.
The turning operation cylinder 3 projects so as to protrude in the
6 is driven, the driving force is transmitted to the swing arm 34, and the receiving base 15, the split head operating cylinder 16, the extended head slide cylinder 19, and the link mechanism support base 2
In FIG. 3, the arrow C indicates the rotation support shaft 35 as the center of rotation.
Rotating in one direction, the pedestals 15 and the like come to the inclined position shown in FIG.

That is, in this case, these pedestals 15,
The winding core 11 is tilted and held at the tilted position shown in FIG. 4 by the winding core support 29, the turning arm 34 and the turning operation cylinder 36, that is, the receiving base 15, the winding core support 29, The tilt arm holding mechanism 38 is constituted by the turning arm 34 and the turning operation cylinder 36.

In the state in which the wound core 11 is tilted and held by the tilt holding mechanism 38 in this manner, the weight of the wound core 11 is determined according to the tilt angle (indicated by α in FIG. 4) in FIG. , And acts in the directions of arrow D1 and arrow E1. In this case, the inclination angle α
Is set to 20 ° or more and less than 90 °.

Next, the split head 18 will be described with reference to FIGS. Split head 1
8, a main body 39 is provided with a removing claw 40 serving as a claw portion and a screw 41.
The tip 40a of the extraction claw 40 is extremely thin and sharply pointed. In this case, the concave space formed between the extraction claw 40 and the main body 39 is the storage space 4
It is 2. In this case, the width (indicated by L in FIG. 5) of the storage holding portion 42 is determined by the shape of the extraction claw 40, and is substantially equal to the thickness of the divided iron core in the stacking direction described later. .

A hole 43 is formed in the upper portion of the main body 39, and a proximity sensor 44 is provided in the hole 43. The proximity sensor 44 is provided with a control circuit (not shown) including a microcomputer when a part of the core 11 comes into contact with the contact surface 39a on the upper part of the main body 39 (when the state shown in FIG. 5 is reached). The detection signal is output to the CPU.

Next, the link mechanism 24 and the expansion head 25 will be described with reference to FIGS. The link mechanism 24 and the extension head 25
Constitutes an extension mechanism 45.
Is attached to the distal end of the rod 23 of the extended head operating cylinder 22 via a connecting member 46.

The link mechanism 24 has a pair of linearly extending links 47, 47 and a pair of substantially "F" -shaped extending arms 48, 48. The connecting member 46 and the extending links 47, 47 Connected by a connecting shaft 49,
The extension links 47, 47 and the extension arms 48, 48 are connected by connection shafts 50, 50. The extension arms 48, 48 are connected to the connecting shafts 5 at predetermined portions thereof so as to form a substantially rhombus with the extension links 47, 47.
They are connected to each other by 1.

In this case, the connecting shaft 51 is fixed to the above-mentioned extended head slide cylinder 19 by a crank-shaped fixing member 52 as shown in FIG. 7 (the fixing member 52 is omitted in FIG. 8). However, when the extension head operating cylinder 22 is driven so that the rod 23 projects in the direction of arrow F1 in FIG.
8 rotates about the connecting shaft 51 as a rotation center, and accordingly, the expansion head 25 expands in the directions of arrows G1 and G2 in FIG.

As shown in FIG. 9, at the upper ends of the extension arms 48, 48, there are provided extension head storage portions 53 each formed in a hemispherical shape. A plurality of ball bearings 54 are housed along the peripheral surface. The expansion head 25 is rotatably housed in the expansion head housing 53 while being in contact with the ball bearings 54.

Next, the operation of the above configuration will be described with reference to FIG. 1 and FIGS. It should be noted that the above-described split head operating cylinder 16, the extended head slide cylinder 19, the extended head operating cylinder 22, the various cylinders of the turning operating cylinder 36, and the motor 31 of the wound iron core slide mechanism 28 are controlled by the above-described control circuit. I do.

First, the winding core 11 is transported by a transfer device (not shown).
When the control circuit drives the turning cylinder 36 so that the rod 37 protrudes in the direction of arrow A1 in FIG. It rotates from the horizontal position shown to the inclined position shown in FIG. 4 and holds it at the inclined position (see FIG. 10). As a result, the own weight of the wound iron core 11 is changed according to the inclination angle α in FIG.
The action is distributed in one direction and the direction of arrow E1. At this time, the rod 17 of the split head operating cylinder 16 is retracted, and the rod 20 of the extended head slide cylinder 19 is projected.

Next, the control circuit is as follows.
The split head operating cylinder 16 is driven so as to project in the direction of arrow E2,
(See FIG. 11).

Next, the control circuit drives the motor 31 of the winding core slide mechanism 28 to move the winding core support plate 29 to the position shown in FIG.
Middle, move in the direction of arrow D2. Along with this, the core 11 supported by the core support plate 29 also moves in the direction of arrow D2 in FIG. 4, and the inner peripheral portion 11a of the core 11 It comes into contact with the contact surface 39a (see FIG. 12).

At this time, as described above, the proximity sensor 4
A detection signal is output from 4 to the control circuit, and the control circuit to which the detection signal is applied stops driving the motor 31 and stops moving the wound core 11.

Next, the control circuit is as follows.
The divided head operating cylinder 16 is driven so as to protrude in the direction of arrow E2 in the middle, and the divided head 18 is moved in the direction of arrow E2
Move in the direction. At this time, the split head 18 is
When moved in the direction of arrow E2, the tip 40a of the extraction claw 40, which is extremely thin and sharp, pierces the wound core 11, and accordingly, the inner peripheral portion 1 of the wound core 11 is moved.
From FIG. 1a, the width L of the storage / holding section 42 described above (see FIG. 5)
A predetermined number of steel strips 12 according to the above-mentioned state are slid in the direction of arrow E2 (from downward to upward) in FIG. 4, and the predetermined number of slid steel strips 12 become the split core 55 (FIG. 13).
reference).

Now, as described above, the core 1
The self-weight of 1 acts in the directions of arrows D1 and E1 in FIG. 4 according to the inclination angle α. Therefore, in the wound iron core 11, its own weight acts in the laminating direction (the direction of arrows D 1 and D 2 in FIG. 4) and the width direction perpendicular to the laminating direction (the direction of arrows E 1 and E 2 in FIG. 4). In particular, since an appropriate pressure acts between the layers in the laminating direction, at this time, a predetermined number of the strips 12 serving as the split iron cores 55 smoothly slide in the direction of arrow E2 in FIG. Become like

Next, the control circuit determines that the split head 18 moves to a predetermined position, and the wrap portion between the split core 55 and the remaining core 11 is a predetermined ratio in the width direction of the core 11 (in this case, 5% to 50%). ), The driving of the split head operating cylinder 16 is stopped (see FIG. 1). At this time, the lower end of the split core 55 is
Are stored and held in the storage holding section 42 of the storage device, and thereby are prevented from falling off.

Next, after the split core 55 is removed by, for example, a predetermined operation by the operator, the control circuit determines that the rod 20 is retracted, that is, the extended head slide cylinder 21 is moved in the direction of arrow E2 in FIG. The extension head slide cylinder 21 is driven to move, and the extension mechanism 45 is moved in the direction of arrow E2 in FIG. The control circuit stops driving the extension head slide cylinder 21 when the extension head 25 at the distal end of the extension mechanism 45 reaches the substantially central portion in the width direction on the inner peripheral portion 11a of the wound core 11. (See FIG. 14).

Next, the control circuit is as follows.
The extension head operating cylinder 22 is driven to protrude in the middle and arrow E2 directions. At this time, along with this, in the expansion mechanism 45, the propulsive force of the rod 23 is
The transmission is transmitted to the extension arms 48, 48 via the link 7, 47, the extension arms 48, 48 rotate around the connecting shaft 51, and the extension head 25 expands in the directions of arrows G1, G2 in FIG. . As a result, the split core 55 receives pressure from the expansion head 25, and expands in the stacking direction (see FIG. 15). In this case, the split core 55 is
It is expanded in a range of 1.1 times or more and less than 3.0 times the original state.

Next, the control circuit is as follows.
During operation, the extension head operating cylinder 22 is driven so as to retreat in the direction of the arrow E1 to return the extension mechanism 45 to the original state, and the rod 20 is projected, that is, the extension head slide cylinder 21 is moved in FIG. The extension head slide cylinder 21 is driven to move in the direction of arrow E1, and the extension mechanism 45 is moved in the direction of arrow E1 in FIG.

At this time, the control circuit operates the rod 17
Drives the split head operating cylinder 16 so as to retreat in the direction of arrow E1 in FIG. 4, and moves the split head 18 in the direction of arrow E1 in FIG. 4 to the position shown in FIG. 11 (FIG. 16).
reference). At this time, a gap is created between the split head 18 and the wound iron core 11 by an amount corresponding to the removal of the split iron core 55.

Next, the control circuit drives the motor 31 of the wound core slide mechanism 28 again, moves the wound core support plate 29 in the direction of arrow D2 in FIG. 4, and the divided head 18 and the wound core 11 move relative to each other. The positional relationship shown in FIG.
The inner peripheral portion 11a of the wound iron core 11 and the split head 18 have a positional relationship of being in contact with the contact surface 39a of the main body portion 39 (see FIG. 17).

Thereafter, the control circuit repeats the above-described operation, whereby the divided cores 55 are sequentially taken out from the wound core 11.

As described above, according to the present embodiment, the wound iron core 11 formed by the one-turn cut method is used for the tilt holding mechanism 3.
8, a predetermined number of steel strips 12 are slid in the width direction of the wound core 11 from the inner peripheral portion 11a of the wound core 11 by movement of the split head 18 in this state, thereby forming the split iron core 55. In this division, the self-weight acts on the winding core 11 in the laminating direction and in the width direction perpendicular to the laminating direction. In particular, an appropriate pressure acts between the layers in the laminating direction. Accordingly, the division of the split core 55 can be performed favorably.

At this time, there is no need to provide a separate fixing and holding mechanism for fixing and holding the wound iron core 11, so that the dividing device 14 does not become large as a whole.

In particular, in the present embodiment, the winding core slide mechanism 28 is provided, and the winding core 11 can be moved in the laminating direction by the winding core slide mechanism 28. By moving the winding core 11, a continuous dividing operation can be performed.

Further, since the storage head 42 is provided on the divided head 18 and the lower end of the divided core 55 is stored and held in the storage holder 42 in a bent state, the divided iron core 55 is provided.
Can be prevented from dropping after division, and the drop can prevent the remaining core 11 from being damaged.

Further, since the splitting head 18 is provided with the extraction claw 40 and the split iron core 55 is divided by the extremely thin and sharply pointed tip portion 40a on the extraction claw 40, the division head 18 and wound iron core 11
Contact resistance between them can be reduced, and the division accuracy can be improved.

Also, in the split head 18, the extraction claw 40
Is configured to be detachable from the main body 39, so that the thickness of the split cores 55 in the stacking direction can be freely selected.

The split head 18 is configured to stop the movement of the split head 18 when the wrap portion between the split core 55 and the remaining core 11 has a predetermined ratio in the width direction of the core 11. In addition, the space above the dividing device 14 can be effectively utilized, and the entire dividing device 14 can be downsized.

Further, the split core 5 is extended by the expansion mechanism 45.
Since it is configured to be expanded after being divided and taken out, the work can be performed smoothly when the divided iron core 55 is inserted into, for example, a transformer coil.

The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The various cylinders of the split head operation cylinder 16, the extension head slide cylinder 19, the extension head operation cylinder 22, the turning operation cylinder 36, and the motor 31 of the wound iron core slide mechanism 28 are not limited to the configuration controlled by one control circuit. It is good also as a structure controlled by a separate control apparatus.

[0052]

As is apparent from the above description, according to the winding core dividing device of the first aspect, the winding core constituted by the one-turn cut system is tilted and held by the tilt holding mechanism 38. Then, by moving a predetermined number of steel strips in the width direction of the wound core from the inner peripheral portion of the wound core by moving the dividing means, the strip steel is configured to be divided as a divided iron core. In the iron core, its own weight acts in the lamination direction and the width direction perpendicular to the lamination direction. In particular, in the lamination direction, an appropriate pressure acts between the layers, so that the divided iron core can be divided well. Can be. At this time, there is no need to provide a separate fixed holding mechanism to fix and hold the wound core.
The device as a whole does not become large.

According to the winding core dividing device of the second aspect, the tilt holding mechanism is provided with a transfer mechanism for transferring the remaining cores by a predetermined number in the stacking direction of the winding cores after dividing the split cores. Therefore, by dividing the divided core and moving the remaining wound core, a continuous dividing operation can be performed.

According to the winding core dividing device of the third aspect, the storing means for storing and holding the end of the divided core in a bent state is provided in the dividing means, so that the divided core falls off after the division. This can prevent the remaining core from being damaged by the falling off.

According to the winding core dividing device of the fourth aspect, since the dividing means is provided with the claw portion having a thin tip and a sharp pointed shape, the dividing means and the winding core are used for the division. The contact resistance between them can be reduced, and the division accuracy can be improved.

According to the winding core dividing device of the fifth aspect, the claw portions of the dividing means are configured to be exchangeable according to the number of strips to be divided as the divided cores, so that the thickness of the divided cores in the stacking direction is increased. Can be freely selected.

According to the winding core dividing device of the sixth aspect, the dividing means is configured to stop moving when the divided core is slid by the predetermined sliding amount, so that the upper space can be effectively used. It can be used, and the size of the entire device can be reduced.

According to the winding core dividing device of the seventh aspect, since the splitting core is split, the expanding mechanism for expanding the split core in the stacking direction is provided.
Can be smoothly carried out when inserting, for example, into a transformer coil.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of one embodiment of the present invention in a partial cross section.

FIG. 2 is an external perspective view of a wound iron core.

FIG. 3 is an overall configuration diagram showing a state in a horizontal position.

FIG. 4 is a view corresponding to FIG.

FIG. 5 is a side view showing the split head in partial cross section.

FIG. 6 is a front view of a split head.

FIG. 7 is a side view of the expansion mechanism.

FIG. 8 is a front view of an expansion mechanism.

FIG. 9 is a side view showing the distal end portion of the extension arm in a partial cross section.

FIG. 10 is a diagram corresponding to FIG.

FIG. 11 is a view showing an operation, which is equivalent to FIG. 1 (part 2);

FIG. 12 is a view (part 3) corresponding to FIG. 1 showing an operation.

FIG. 13 is a diagram (part 4) corresponding to FIG. 1 showing an operation.

FIG. 14 is a view corresponding to FIG. 1 showing an operation (part 5).

FIG. 15 is a plan view showing a state where the wound iron core is expanded;

FIG. 16 is a view (part 6) corresponding to FIG. 1 showing the operation.

FIG. 17 is a view corresponding to FIG. 1 showing an operation (part 7).

FIG. 18 is a diagram corresponding to FIG. 2 showing a conventional example.

FIG. 19 is a diagram showing a state in which a split core is taken out.

FIG. 20 is a diagram showing a state in which a split core is inserted into a transformer coil.

FIG. 21 is a diagram showing a state where the arm is inserted into the inner peripheral portion of the wound iron core.

FIG. 22 is a diagram corresponding to FIG. 21;

FIG. 23 is a diagram showing a state in which a split core is split;

DESCRIPTION OF THE SYMBOLS In the drawings, 11 is a wound iron core, 12 is a strip steel material, 14 is a dividing device, 18 is a dividing head (dividing means), 28 is a wound iron core slide mechanism (transfer mechanism), 38 is an inclined holding mechanism, 40 Is a removal claw (claw portion), 42 is a storage holding portion, 45 is an expansion mechanism, 5
5 is a split iron core.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Mikio Awa, Inventor Mie Prefecture, Mie-gun

Claims (7)

[Claims] 1. A rolled iron core formed by laminating a plurality of steel strips wound in a substantially annular shape by a one-turn cutting method in a state where the core is inclined so that an inclination angle with respect to a horizontal direction is less than 90 °. A tilt holding mechanism for holding, and in a state where the core is tilted and held by the tilt holding mechanism, a predetermined number of sheets are moved from an inner peripheral portion of the core by moving in a width direction perpendicular to a laminating direction of the core. And a dividing means for sliding the strip steel material in the width direction of the wound core to divide the strip as a divided iron core. 2. The apparatus according to claim 1, wherein the tilt holding mechanism includes a transfer mechanism configured to transfer the remaining cores by the predetermined number in the stacking direction of the cores after dividing the split core. 2. The device for dividing a core according to claim 1. 3. The winding core dividing apparatus according to claim 1, wherein said dividing means includes a storage holding portion for storing and holding an end of the split core in a bent state. 4. The dividing means has a thin tip portion and
4. The winding core dividing device according to claim 1, further comprising a sharply-pointed claw portion. 5. The wound iron core dividing device according to claim 4, wherein the claw portion of the dividing means is configured to be exchangeable according to the number of strips to be divided as the divided iron core. 6. The winding according to claim 1, wherein said dividing means is configured to stop moving when the divided core is slid by a predetermined sliding amount. Iron core splitting device. 7. The winding core splitting device according to claim 1, further comprising an expansion mechanism for expanding the split core in the stacking direction after splitting the split core.