JP2003151843A - Cutting of transformer or core deassembling or scrapping method and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deassemble a core and to collect a PCB oil contained in it ideally regarding a deassembling method and a device for a transformer core. SOLUTION: A core 10 to be deassembled is mounted on a base 14 and a mandrel 18 is inserted to its central hole 10A. A press cutting blade 20 fitting the width of a thin plate constituting the core 10 is pressurized toward the core 10 from the outer diameter side thereof, and the core 10 is cut by the press cutting blade 20 one by one from an outer layer. A core segment after being cut and divided is subjected to scrapping repeatedly such as bending. Consequently, slippage occurs between thin plate segments constituting a winding layer, and adhesion between winding layers is released and separated to individual thin plate segments.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for disassembling a transformer iron core, and is particularly suitable for dismantling an iron core such as a pole transformer containing PCB oil.

[0002]

2. Description of the Related Art The disassembling process of an iron core of a transformer requires complete removal of PCB oil contained between winding layers. Conventionally, the hollow iron core after removing the winding wire is repeatedly pressed by a press or the like to squeeze and remove oil. However, in the conventional method, the restraint between the winding layers can be slightly relaxed, the permeation into the center of the cleaning liquid and the suction of the vaporized vaporized vapor cannot be sufficiently performed, and it is difficult to completely clean the PCB oil. . Furthermore, in the case where the iron core is spot welded between the windings or the side wall of the iron core is strong and varnished,
Removal of PCB was extremely difficult. Incidentally, in the past, the dismantling work was mainly carried out by manually using a hammer or a burl, and the efficiency was not very good. There was also a risk of PCB contamination.

The present invention has been made in view of the above problems, and dismantles an iron core of a transformer and a P included therein.
The purpose is to enable ideal recovery of CB oil.

[0004]

[Means for Solving the Problems]

According to the first aspect of the present invention, there is provided a method of cutting an iron core of a transformer having a laminated structure by winding thin plates, in which a push-cutting blade which is adapted to the width of the thin plate is held toward the iron core while holding the iron core. There is provided a method of pressurizing the core from the outer diameter side, thereby sequentially cutting the iron core from the outer layer.

The operation and effect of the invention of claim 1 will be described. By pressing from the outer diameter side of the iron core with a push-cut blade, the thin plates constituting the iron core are sequentially cut from the outer layer. Therefore, the iron core can be cut efficiently with low energy.

According to a second aspect of the present invention, there is provided a method of disassembling an iron core of a transformer having a laminated structure by winding thin plates, wherein a push-cut blade adapted to the width of the thin plates is directed toward the iron core to have an outer diameter thereof. A method for disassembling an iron core of a transformer is provided, in which pressure is applied from the side, whereby the iron core is sequentially cut from the outer layer, and the cut and divided iron core pieces are scattered into individual thin plate pieces.

The operation and effect of the invention of claim 2 will be described. Since the thin plates constituting the iron core are sequentially cut from the outer layer by pressing from the outer diameter side of the iron core by the push-cutting blade, the pressing force is small. . Usually, the core segment that is divided by cutting has a tight contact between the winding layers,
Since the thin plate pieces are separated by passing through the dispersion process, ideal dismantling process of the transformer can be realized.

According to the invention of claim 3, claim 1
Alternatively, in the invention described in 2, in the cutting,
There is provided a method for disassembling an iron core of a transformer, characterized in that the iron core is held at a portion of its central opening.

To explain the action and effect of the invention of claim 3, the cutting work can be efficiently carried out by holding the iron core at the center opening thereof by a mandrel or the like when cutting by the push cutting blade.

According to the invention of claim 4, claim 1
Alternatively, in the invention described in 2, in the cutting,
A method for disassembling an iron core of a transformer, which comprises simultaneously or sequentially driving a plurality of push-cutting blades arranged along the outer circumference of the iron core.

Explaining the operation and effect of the invention of claim 4, the iron core can be cut into a large number of small pieces by simultaneously or sequentially driving a plurality of push-cutting blades arranged along the outer periphery of the iron core. Therefore, the efficiency of the subsequent processing work can be improved.

According to the fifth aspect of the present invention, for the scattering treatment, a local unevenly distributed force is applied to the iron core pieces after cutting and division to induce mutual movement between the winding layers, and thereby the iron core pieces. A method for disassembling an iron core of a transformer is provided, which comprises:

The operation and effect of the invention of claim 5 will be described. The divided iron core pieces are subjected to a locally eccentric force such as bending or slippage, whereby the thin core pieces forming the iron core pieces are mutually connected. Of the cores, so that the core pieces can be separated into individual sheet sections.

According to a sixth aspect of the present invention, there is provided a cutting device for an iron core of a transformer having a laminated structure formed by winding thin plates, the pedestal of an iron core to be disassembled, and the iron core on the iron pedestal. A cored piece inserted into the central opening of the core, a push-cutting blade adapted to the width of a thin plate forming the iron core, and a pressurizing means for pressing the push-cutting blade from the outer diameter side of the iron core. An iron core cutting device is provided.

The operation and effect of the invention of claim 6 will be described. An iron core is placed on a pedestal, and the iron core is held at its central opening by a mandrel. In this state, the push-cutting blade contacts the outer circumference of the iron core. The thin plates forming the iron core are sequentially cut from the outer layer by the pressing means. Therefore, reliable cutting of the iron core is realized.

According to the invention of claim 7, claim 6
In the invention described in (1), a plurality of push-cutting blades are installed at intervals in the circumferential direction around the iron core, and the pressurizing means drives the plurality of push-cutting blades simultaneously or sequentially. A cutting device is provided.

The operation and effect of the invention of claim 7 will be described. Since the plurality of push-cutting blades are driven simultaneously or sequentially, the iron core can be efficiently cut and the processing efficiency can be improved. .

According to the invention described in claim 8, claim 6
Alternatively, in the invention described in 7, an iron core cutting device is provided, which is provided with a turning means for turning the iron core cradle so that the positional relationship between the iron core and the push cutting blade can be adjusted.

The operation and effect of the invention of claim 8 will be described. By rotating the iron core cradle, it is possible to avoid a difference in length of the strip-shaped slices after cutting in the superposition type iron core. That is, if the overlapping portion is cut, an extreme strip may be generated, or there may be a problem that it is difficult to grip the iron core segment due to the scattering process in the subsequent process,
By rotating the iron core cradle, the overlapping portion can be avoided, cutting can be performed after adjusting to an appropriate length, and the above problems can be solved.

According to a ninth aspect of the present invention, there is provided a disassembling treatment device for an iron core of a transformer having a laminated structure by winding thin plates, the pedestal of the iron core to be disassembled, and the iron cradle on the iron core pedestal. A mandrel inserted into the central opening of the iron core, a push-cutting blade that matches the width of the thin plates that form the iron core, a pressing means that presses the push-cutting blade from the outer diameter side of the iron core, and an iron core section after cutting. There is provided an iron core disassembling treatment apparatus, characterized in that the iron core disassembling treatment apparatus is provided with a sprinkling means for sprinkling each thin plate.

The operation and effect of the invention of claim 9 will be described. An iron core is placed on a pedestal, and the iron core is held at its central opening by a mandrel. In this state, the push-cutting blade contacts the outer circumference of the iron core. The thin plates that make up the iron core are sequentially cut from the outer layer by the pressurizing means so that the iron core can be surely cut, and at the same time, the core pieces after cutting are separated into individual thin plates by the sprinkling process, and the iron core is cut. The ideal dismantling process of is realized.

According to the invention of claim 10, in the invention of claim 9, the sprinkling means holds the iron core pieces by sandwiching them from both sides in the stacking direction, and by the sandwiching and holding means. An apparatus for disassembling an iron core is provided, comprising: a means for bending the formed iron core piece forward and backward on the opening side thereof.

The operation and effect of the invention of claim 10 will be described. By holding the core piece and bending the core piece at the opening side, slippage occurs between the winding layers, and the mutual adhesion state between the winding layers of the core piece is maintained. It can be reliably separated into individual thin plate sections.

According to the invention described in claim 11, in the invention described in claim 9, the scattering means is constituted by roller means for moving the core segment after cutting and dividing while pressing it from both sides. A featured iron core disassembly processing device is provided.

The operation and effect of the invention of claim 11 will be described. By pressing and moving the iron core piece by a roller, a displacement force is generated between the layers in the iron core piece by a method such as changing the surface speed of the roller. The iron core can be separated into individual thin plates.

According to the twelfth aspect of the present invention, in the method of scattering the iron core or the iron core segment disassembled from the transformer, by applying a force to a part of the iron core or the iron core segment, the iron core or the iron core segment is applied. There is provided a method for scattering iron cores, which comprises causing mutual displacement between the winding layers constituting the core and separating the iron core or the core pieces into individual thin plates by the displacement between the winding layers.

The operation and effect of the invention of claim 12 will be described. By applying bending or sliding to the iron core or the iron core piece, a locally eccentric force is applied to the iron core or the iron core piece to cause a displacement between winding layers, This makes it possible to separate the tightly wound core winding layers and to complete the cleaning of the insulating oil that may be present in the gaps between the winding layers.

According to the thirteenth aspect of the present invention, in a device for scattering an iron core or an iron core segment disassembled from a transformer, a means for holding the iron core or the iron core segment and a part of the iron core or the iron core segment are provided. And means for applying force,
Characteristic of causing a mutual displacement between winding layers constituting the iron core or the iron core segment by a force applied to a part of the iron core or the iron core segment, and separating the iron core or the iron core segment into individual thin plates by the displacement between the winding layers An iron core dispersal device is provided.

Explaining the action and effect of the invention of claim 13, a locally eccentric force is applied to the iron core or the iron core segment,
Displacement between the winding layers is caused, which is equivalent to claim 11.

According to a fourteenth aspect of the present invention, there is provided a device for scattering individual thin plates after dividing a transformer iron core into strip-shaped pieces, the iron core pieces being sandwiched and held from both sides in the stacking direction. And a means for bending the iron core piece held by the sandwiching and holding means forward and backward on the opening side thereof.

The operation and effect of the invention of claim 14 will be described. When the iron core piece is bent back and forth, a deviation occurs between the windings, so that the thin piece is surely separated as in the invention of claim 10. be able to.

According to a fifteenth aspect of the present invention, there is provided a device for scattering individual thin plates after the transformer iron core is divided into strip-shaped pieces, which are arranged so as to face each other with the cut and divided iron-core pieces sandwiched therebetween. An iron core dispersal device is provided, which comprises a plurality of pairs of rollers and a rotation driving means for rotating the rollers of each pair in opposite directions.

The operation and effect of the invention of claim 15 will be explained. By applying pressure to the iron core segment by a roller to change the surface speed of the roller, a displacement force is applied between the layers of the iron core segment, It is possible to perform reliable separation of the core piece into individual thin plates similar to the invention of Item 11.

[0035]

1 and 2 show a conceptual configuration of a cutting device according to a first embodiment of the present invention. The transformer has an inner iron type in which coils are wound on both sides of one iron core, an outer iron type in which one coil is wound across two iron cores, and one coil is extended across four cross-shaped iron cores. Although there are various variations such as a cross-shaped winding, the present invention can be used in any type of transformer. The iron core 10 is obtained by removing the coils from these transformers. If necessary, the method and apparatus for removing the winding wire from the iron core 10 will be described in Japanese Patent Application Laid-Open No. 2000-2000 by the same applicant as this application.
See the description of -82617. As the lap winding method of the iron core, (a) an endless type in which a long hoop material is wound endlessly, (b) a rectangular thin plate with a slightly different length depending on the difference in inner and outer diameters is curled and only the ends are polymerized. This is an end superposition type that is overlapped and wound with the superposition part being slightly shifted,
(C) A composite type in which the inner diameter side is configured as an endless type and the outer diameter side is configured as an end overlap type, and (D) a C-shaped laminate is formed and the end surface is machined to form two pieces. There is a C-shaped mating type that combines them into one iron core. The cross-sectional shape of the iron core is (a) a rectangular shape in which the sidewalls of the iron core are flush with the inner and outer diameter sides and the cross section is rectangular, and (b) an inner diameter step in which a step is formed to narrow the inner diameter side. Type, (c) an outer diameter step type in which a step is formed so that the width becomes narrower on the outer diameter side, and (d) an inner and outer diameter step type in which a step is formed so that the width becomes narrower on both the inner diameter side and the outer diameter side. . In the apparatus of the first embodiment, FIG.
As shown in FIG. 7, the iron core 10 is the endless type lap winding method of (a) and has an outer diameter step type cross-sectional shape in which the side surface has a step on the outer diameter side as shown in (c). The present invention can be used in any of the lap winding methods (a) to (d) and in any of the sectional shapes of (a) to (d). Further, as shown in FIG. 2, the iron core 10 is shown as having a band 11 for width tightening on the outermost periphery.

In FIG. 2, reference numeral 12 is a seat plate, and the seat plate 1
2 is provided with a receiving piece 14, and the iron core 10 is provided on the receiving piece 14.
Is placed. The seat plate 12 is provided on the revolving table 16, and by rotating the revolving table 16 as shown by an arrow a, the iron core 10 can be rotated and set at a desired angular position. A mandrel 18 is provided above the iron core 10, and the mandrel 18 is connected to a hydraulic cylinder mechanism (not shown). In a normal state, the mandrel 18 is retracted upward (in the direction of arrow b) as shown in the right half of FIG. However, when the iron core 10 is cut, the mandrel 18 is driven in the direction of arrow c as shown in the left half of FIG. 2 by driving the hydraulic cylinder mechanism, and the mandrel 18 is introduced into the central opening 10A of the iron core 10. The lower end 18-1 reaches the central opening 14A of the receiving piece 14, and the core 10 can be held by inserting the mandrel 18.

In the illustrated embodiment, a pair of push cutting blades 20.
Are provided in the diametrically opposed positions, and the push cutting blade 20 is
Has a width (a width that covers the widest part of the iron core in the case of a stepped iron core), and the cutting edge 20-1 at the tip faces the peripheral surface of the iron core 10. The push cutting blades 20 are connected to the piston rods 22 of the respective hydraulic cylinder mechanisms, and are normally retracted in the direction of the arrow d as shown in the lower half of FIG. Pushing blade 2 with piston rod 22
0 is advanced in the direction of arrow e, and the iron core 10 is sequentially cut from the outer layer. In the final stage of cutting, the cored bar 18 receives the push-cutting blade 20 to suppress the crushing deformation of the iron core 10 and to cut the iron core 10 evenly to the innermost periphery thereof.

The iron core 10 is divided into two parts by a single cutting operation by the push-cutting blades 20 located opposite to each other in diameter. And
The swivel table 16 is rotated at an appropriate angle, and the cutting position by the push cutting blade 20 can be adjusted. Such cutting position adjustment is also important for avoiding a difference in length of the strip-shaped slices after cutting in the case of a laminated core. That is,
The angular position of the iron core can be adjusted by the turning table 16 so that the cutting position is separated from the overlapping portion by an appropriate distance. By such a cutting operation, the section obtained by cutting the core becomes too short, and there is no problem that the core section is not gripped when the core layer is scattered in the subsequent step.

In FIG. 1, the push-cutting blade 20 can be provided as shown by a pair of imaginary lines, and in this case, the iron core 10 can be divided into four by one cutting operation.

FIGS. 3 and 4 show a cutting device according to a second embodiment of the present invention. In this embodiment, a mandrel-push cutting blade assembly 30 fixedly arranged above and a vertically movable table assembly. And a solid 32. The mandrel-push cutting blade assembly 30 includes a mandrel 118 and a push cutting blade 120. As shown in FIG. 3, eight push cutting blades 120 are arranged around the mandrel 118, and each push cutting blade 120 is connected to the piston rod 122. The piston rod 122 extends from the cylinder 124. 8 cylinders
The mandrel 11 is held between the upper and lower support plates 126 and 128 having a rectangular shape.
8 is an opening 12 from the upper support plate 128 to the lower support plate 126.
It projects toward the table assembly 32 through 6A.
In the table assembly 32, the table 116 is connected to a piston 142 extending from the cylinder 140. Therefore, the table assembly 32 is the mandrel-push cutting blade assembly 30.
On the other hand, it can be moved up and down as indicated by arrow f. The seat plate 112 is rotatably supported by the pin 144 with respect to the table 116, and in the normal state, the seat plate 112 is placed on the table 116 via the spacer 150. Iron core 1 on seat plate 112
A receiving piece 114 for 0 is placed. The seat plate 112 is connected to the hydraulic cylinder 152.

The carrier 162 of the iron core 10 is provided flush with the receiving piece 114 when the table assembly 32 is in the lowered position as shown in FIG. 4, and both sides of the carrier 162 have grippers of V section facing each other. A plurality of pairs of 164 are provided facing each other, and the gripper 164 is moved back and forth with respect to the iron core 10 as indicated by an arrow g. Therefore, the iron core 10 gripped by the gripper 164 can be placed on the receiving piece 114 with the central opening 10A facing upward. In this state, hydraulic pressure is supplied to the hydraulic cylinder 140, the piston rod 142 is raised, the table assembly 32 is moved toward the mandrel-push cutting blade assembly 30, and the central opening 10A of the iron core 10 on the receiving piece 114 is moved. Swallowed Shinkin 118,
This is referred to as the raised position of the table assembly 32. Then, the hydraulic pressure is introduced into the hydraulic cylinder 124, and the push-cutting blades 120 are moved radially inward at the same time or sequentially, whereby the iron core 10 is sequentially cut from the outer layer, and the iron core 10 is divided into eight pieces as iron core pieces at once. To be done. When the iron core 10 is divided into eight, the hydraulic pressure in the hydraulic cylinder 124 is released.
The push-cut blades 120 are simultaneously retracted, then the hydraulic pressure of the hydraulic cylinder 140 is released, and the table assembly 32 is lowered to the lowest position. Then, by introducing hydraulic pressure into the hydraulic cylinder 152, the seat plate 112 is rotated and tilted around the pin 144 in a counterclockwise direction as indicated by an imaginary line 112 ′,
The cut iron core pieces are discharged through the chute 160.

The cutting device of the first or second embodiment subdivides the iron core into strip-shaped pieces, but there is a spot weld between windings and the side wall of the iron core is strong and varnish is applied. In some cases, after cutting, each layer remains in a solidified state without being separated into individual layers, and it is difficult to completely clean the PCB oil between the winding layers. Therefore, a device for scattering the cut iron core pieces into individual thin plate pieces is required. FIG. 5 shows a first embodiment of such a device, in which the sprinkler device is similar to the embodiment of FIGS.
It is suitable when 0 is divided into two or four, and the iron core segment 10 'after cutting is long and the curve remains. In FIG. 5, the gripper 50 is composed of a first jaw 52 and a second jaw 54, and grips the core piece 10 'after cutting between the first jaw 52 and the second jaw 54 from both sides thereof. The gripper 50 is provided so as to be able to reciprocate back and forth by a drive mechanism (not shown). 3 pairs of baffle pins 56a,
56b and 56c are provided in parallel and spaced from each other, and the distance between the baffle pins 56 is sequentially changed so that they can hit different portions of the core piece 10 'after cutting. The distance between the pin pairs 56a, 56b, 56c is adjustable. The gripper 50 is provided so as to be movable back and forth as indicated by arrows A and B.

The state of FIG. 5A shows the state before the start of the scattering operation, and the core piece 10 'is in contact with the first pair of baffle pins 56a on the concave side. By moving the gripper 50 from this state in the direction of arrow A, the iron core segment 10
´ is bent. That is, in (b), it is bent in the direction opposite to the original direction and comes into contact with the second pair of baffle pins 56b,
In (c), the bending is released by passing through the third pair 56c of the baffle pins, and both ends are scattered. By appropriately changing the distance between the pair of pins 56a, 56b, 56c, the iron core segment 10 'comes into contact with the pair of pins 56a, 56b, 56c at different portions during the bending operation, and realizes a good dispersion. be able to. Then, by reversing the moving direction of the gripper from the state of (c), the gripper sequentially passes through the pair of pins 56c, 56b, 56a, and bending in the opposite direction is imparted. At this time, the third pin pair 56c can be widened in the arrow j direction as shown by the broken line 56c ', and the first pin pair 56a can be changed as shown by the broken line 56a' in the arrow k direction. it can. Due to such a change in the spacing, the pins are different from each other in the iron wire section 10
Since it comes into contact with ‘′, a better scattering effect can be obtained. In the case of the scattering means shown in FIG. 5, the central portion of the iron core segment 10 ′ held by the gripper 50 is not loosened. Therefore, the gripping portion of the iron core segment 10 'is slightly shifted, and the same scattering operation as in (a) to (c) is repeated to disperse the iron core segment 10' in a uniform manner. Can be separated into individual slices.

As a modification of the embodiment of FIG. 5, a gripper 50 is provided.
May be fixed and the baffle pin may be rotated back and forth. Also with this configuration, front and rear bending is applied to the iron core piece 10 ', and it is possible to promote the scattering. Further, by providing a means for adjusting the position of the baffle pin with respect to the iron core segment and allowing the baffle pin to contact the iron core segment at different positions, it is possible to realize a complete scattering operation over the entire iron core segment. .

FIG. 6 shows another embodiment of the sprinkling device. In the sprinkling device of this embodiment, like the cutting device of FIG. 3 and FIG. Suitable for those with inconspicuous curvature of section. In this embodiment, the sprinkler comprises a hopper 58 for the core segment 10 '.
, A plurality of roller pairs 60, 62, 64 arranged to face each other, and a carry-out chute 66. Each grooved roller pair 60, 62,
64 is separated by an appropriate gap, and is rotated at the same speed in opposite directions by a transmission mechanism 67, 68, 70 consisting of a gear and a pulley belt. Each roller pair 60, 62, 64
Is a spring float type, and at least one of the rollers is knurled on the peripheral surface to increase the contact resistance. Then, by making one roller diameter φD different from the other roller diameter φd in each roller pair 60, 62, 64, and changing the surface speed, the iron core segment 10 ′ is made into each pair 60, 6 and 6.
Different surface speed when passing between 2, 64 rollers,
It is intended to realize an efficient scattering operation by forcibly causing a slip. And the roller pair 60,
In 62 and 64, the distance between the rollers is gradually decreased, and the surface velocity is increased as the roller pair moves to 60, 62 and 64 toward the downstream side. This allows the roller pair 60, 62,
As it passes through between the 64 rollers, it is possible to make the scattering progress in sequence. That is, a pair of rollers 6 with a large interval
A slip at 0 passes results in a thick separation such as 10 ", a middle roller pair 62 separates a middle thickness such as 10"'by a slip, and a final roller pair 64 slips into individual sheets. The thin plate segment S is separated and carried out from the carry-out chute 66.

In the above embodiment, the sprinkling treatment is carried out after the iron core is cut, but the sprinkling treatment before cutting is also possible.
As a scattering treatment method before cutting, it is possible to press a tapered cored bar against the central opening of the iron core, thereby causing a slip between the core wound layers and destroying the close contact state between the core wound layers.

[Brief description of drawings]

FIG. 1 is a plan view of an iron core cutting device according to a first embodiment of the present invention.

FIG. 2 is a side view of the iron core cutting device of FIG. 1.

FIG. 3 is a plan view of an iron core cutting device according to a second embodiment of the present invention.

FIG. 4 is a side view of the iron core cutting device of FIG.

FIG. 5 is a schematic view showing an embodiment of an apparatus for scattering treatment after separating the iron core into strip-shaped sections.

FIG. 6 is a schematic view showing another embodiment of the scattering device.

[Explanation of symbols]

10 ... Iron core 12, 120 ... seat 14, 114 ... Received pieces 16, 116… Table 18, 118 ... 20, 120… Push cutting blade 22, 122 ... Piston rod 30 ... Mandrel-pushing blade assembly 32 ... Table assembly 50 ... Gripper 52 ... The first Joe 54 ... Second Joe 56a, 56b, 56c ... Disturbing pins 58 ... Hopper 60, 62, 64… Roller pair 66 ... Carry-out chute 67, 68, 70… Conduction mechanism

Claims (15)

[Claims] 1. A method of cutting an iron core of a transformer as a laminated structure by winding thin plates, wherein a push-cutting blade matching the width of the thin plate is pressed toward the iron core from the outer diameter side while holding the iron core, This is a method of sequentially cutting the iron core from the outer layer. 2. A method for disassembling an iron core of a transformer having a laminated structure by winding thin plates, wherein a push-cutting blade adapted to the width of the thin plates is pressed toward the iron core from its outer diameter side, whereby the iron core is A method for disassembling an iron core of a transformer, which comprises sequentially cutting from the outer layer, and disposing the cut iron core pieces into individual thin plate pieces. 3. The method for disassembling an iron core of a transformer according to claim 1 or 2, wherein the iron core is held at a central opening portion during the cutting. 4. The core of a transformer according to claim 1 or 2, wherein a plurality of push-cutting blades arranged along an outer periphery of the iron core are driven simultaneously or sequentially during the cutting. Dismantling treatment method. 5. The invention according to claim 2, wherein for the scattering treatment, a localized unevenly distributed force is applied to the iron core piece after cutting and division to cause mutual movement between the winding layers, and thereby the iron core piece. A method for disassembling an iron core of a transformer, characterized in that each of the thin plate pieces is scattered. 6. A device for cutting an iron core of a transformer having a laminated structure by winding thin plates, the pedestal of an iron core to be disassembled, and a core inserted into a central opening of the iron core on the iron cradle. An iron core cutting device comprising: gold, a push-cut blade that matches the width of a thin plate that forms the iron core, and a pressurizing unit that presses the push-cut blade from the outer diameter side of the iron core. 7. The invention according to claim 6, wherein a plurality of push cutting blades are installed around the iron core at intervals in the circumferential direction, and the pressurizing means simultaneously or sequentially connects the plurality of push cutting blades. Iron core cutting device characterized by being driven. 8. The iron core cutting according to claim 6 or 7, further comprising a turning means for turning the iron core cradle so that a positional relationship between the iron core and the push-cut blade can be adjusted. apparatus. 9. An iron core disassembling treatment device for a transformer having a laminated structure formed by winding thin plates, wherein the iron core is to be disassembled and is inserted into a center opening of the iron core on the iron cradle. Mandrel, push-cut blades that match the width of the thin plates that make up the iron core, pressurizing means that presses the push-cut blades from the outer diameter side of the iron core, and scatters the cut iron core pieces into individual thin plates. An iron core dismantling processing device, comprising: 10. The invention according to claim 9, wherein the sprinkling means sandwiches and holds the iron core pieces from both sides in the stacking direction, and the iron core slices held by the sandwiching and holding means on the opening side thereof. An iron core dismantling treatment device comprising: a means for bending back and forth. 11. The iron core disassembling apparatus according to claim 9, wherein the scattering means is constituted by roller means for moving the cut and divided iron core pieces while applying pressure from both sides. 12. A method for scattering an iron core or an iron core segment disassembled from a transformer, wherein a force is applied to a part of the iron core or the iron core segment to cause mutual displacement between winding layers constituting the iron core or the iron core segment. And separating the iron core or the iron core pieces into individual thin plates due to the displacement between the winding layers. 13. A device for scattering an iron core or an iron core segment disassembled from a transformer, comprising means for holding the iron core or the iron core segment, and means for applying a force to a part of the iron core or the iron core segment. Alternatively, it is characterized in that a force applied to a part of the core segment causes mutual displacement between the cores or winding layers constituting the core segment, and the cores or core segments are separated into individual thin plates by the displacement between the winding layers. Iron core scattering device. 14. A device for scattering individual thin plates after dividing a transformer core into strip-shaped pieces, means for holding and holding the core pieces from both sides in the stacking direction, and the holding means. And a means for bending the iron core piece held by the above-described method back and forth on the opening side thereof. 15. A device for scattering individual thin plates after dividing a transformer iron core into strip-shaped pieces, and a plurality of pairs of rollers arranged to face each other with the iron core pieces after cutting and dividing interposed therebetween.
An iron core dispersal device, comprising: a rotation driving means for rotating the respective pairs of rollers in opposite directions.