JP5839446B2 - Manufacturing method of wound laminated iron core - Google Patents

Description

The present invention relates to a method for manufacturing a wound laminated core capable of manufacturing a high-quality and high-quality product without being affected by stepped portions on both end faces of a wound core body manufactured by winding a strip-shaped core piece.

As disclosed in Patent Document 1, in fixing a rotor of a permanent magnet type laminated iron core, a method of fixing a magnet by injecting molten resin into a gap between a magnet insertion hole and a magnet (commonly called “magnet mold”) It is called “construction method”). Generally, in this method, a mold structure is used in which a mold surface is brought into close contact with the upper and lower surfaces of a core body in which a plurality of core pieces are laminated, and resin can be injected via a predetermined resin injection path.
The core body disclosed in Patent Document 1 has a cylindrical shape in which the upper and lower surfaces are substantially flat by laminating core pieces punched out of a plate material in an annular shape to a predetermined thickness. The above-mentioned resin molding die used for fixing the magnet of the iron core body has a substantially flat shape except for the resin injection path on the surface in contact with the end face of the iron core body.

On the other hand, in Patent Document 2, as a method of suppressing the amount of material used to form the laminated iron core, arc-shaped segment core pieces having a predetermined number of slots are spirally wound in a concentric manner while bending a connecting portion, A wound core body formed by stacking in a cylindrical shape is disclosed. As a feature of the wound core body, as shown in FIGS. 7A and 7B, the wound core body 100 laminated in a spiral form has a segment thickness at the beginning and end of the winding of the segments. The steps 101 and 102 of the minute inevitably occur. Here, the wound core body refers to a body in which a permanent magnet is not resin-sealed in a magnet insertion hole.

Japanese Patent No. 4429258 WO2008 / 0444420

As described above, when a magnet is inserted into the magnet insertion hole of the wound core body having a step up and down and filled with resin, a step is also formed on the mold side so as to fit the stepped portion generated on the end surface of the wound core body. It is conceivable to provide a part.
However, the position of the stepped portion generated in the wound core body varies depending on the required thickness of the product and the thickness of the material used. Therefore, the position of the step of the wound core body and the position of the step formed on the mold may not match, and it may become impossible to perform permanent magnet resin sealing on the wound core body.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a method for manufacturing a wound laminated core in which a permanent magnet is rationally resin-sealed on a wound core body having steps on upper and lower surfaces.

In the manufacturing method of the wound laminated core according to the present invention that meets the above-described object, the core body is formed by bending the strip-shaped core pieces in which the segment core pieces are connected at the connecting portions and winding them in a spiral shape. A wound laminated core having a step at the beginning and end of winding of the strip-shaped core piece, and a permanent magnet is sealed with a resin in a magnet insertion hole formed vertically through each magnetic pole portion of the wound core body A manufacturing method of
Wherein the upper and lower of the winding core body, wherein the permanent magnet is inserted in each magnet insertion holes, and have a level difference that conforms to the step, placing each dummy plate abutting without any gap on the upper and lower surfaces of the wound core body A first step of disposing the wound core body between the resin discharge mold and the holding mold via the dummy plate;
A second step of extruding a resin from a resin pot formed in the resin discharge mold and filling the magnet insertion holes with the resin through the dummy plate in contact with the resin discharge mold;
And a third step of taking out the wound laminated iron core in which the permanent magnet is sealed with resin from the resin discharge mold and the holding mold.

In the present invention, the permanent magnet includes an unmagnetized one. In this case, the permanent magnet is magnetized after being sealed with the wound core body by resin. The wound core body refers to a permanent magnet not sealed with resin in the magnet insertion hole.
The resin discharge mold may be either an upper mold or a lower mold.
And the level | step difference of a dummy plate and the level | step difference of a wound iron core main body may be aligned manually, and may be aligned automatically using a motor.

In the method for manufacturing a wound laminated core according to the present invention, the end of the strip-shaped core piece is located at the end of the magnetic pole portion, and the magnet insertion hole is at a certain angular position with respect to the end of the strip-like core piece. Is preferred. As a result, the position of the step formed above and below the wound core body and the relative position of the magnet insertion hole are determined.

In the method for manufacturing a wound laminated core according to the present invention, it is preferable that each segment core piece has one or more magnetic pole pieces. When one segment core piece has a plurality of magnetic pole pieces, the wound core body can be manufactured more easily.

In the method for manufacturing a wound laminated iron core according to the present invention, the resin pot vertically penetrates the resin discharge mold and passes through a resin flow path formed in the dummy plate that is in contact with the resin discharge mold. The magnet insertion hole is preferably filled with the resin.
Here, the dummy plate in contact with the resin discharge mold is divided into two, the resin flow path is formed in the dummy plate A in direct contact with the resin discharge mold, and the dummy plate B in direct contact with the wound core body It is preferable that a resin injection hole for injecting the resin flowing through the resin flow path into the magnet insertion hole is provided.

In the method for manufacturing a wound laminated iron core according to the present invention, the resin pot may be located in an inner opening of the wound core body in plan view.

In the method for manufacturing a wound laminated core according to the present invention, one of the upper and lower dummy plates is also used as a transport jig, and the transport jig is an inner opening formed at the center of the wound core body. It is preferable to have an axis that coincides with the part.

And in the manufacturing method of the wound laminated iron core according to the present invention, each dummy plate has an inclined surface formed on one surface according to the surface inclination of the wound core body, and the other surface is a flat surface. Preferably it is.

Since the step is provided on the dummy plate to match the step of the wound core body, the wound core body is placed between the resin discharge mold and the holding mold via the dummy plate regardless of the phase of the step of the wound core body. Resin sealing becomes possible, and it becomes possible to manufacture a high-quality wound laminated core in which no resin residue adheres on the wound laminated core.
Since there are dummy plates on the top and bottom of the wound core body, a part of the mold is rotated to confront the stepped portion of the wound core body, so resin sealing can be performed without moving the entire mold, improving workability To do.
Furthermore, since the dummy plates are used at the top and bottom, it is not necessary to perform a step process on the mold, and the mold manufacturing cost can be reduced. In addition, the maintenance of the mold can be dealt with by cleaning the dummy plate and the like, and a reduction in running cost can be expected.

It is sectional drawing explaining the manufacturing method of the winding laminated iron core which concerns on the 1st Embodiment of this invention. It is a top view of the winding laminated iron core which applies the manufacturing method of the winding laminated iron core. It is sectional drawing explaining the manufacturing method of the winding laminated core which concerns on the 2nd Embodiment of this invention. It is a top view of the winding laminated iron core which applies the manufacturing method of the winding laminated iron core. It is a perspective view of the wound core main body to which the manufacturing method of the same laminated core is applied. It is sectional drawing explaining the manufacturing method of the winding laminated iron core which concerns on the 3rd Embodiment of this invention. (A), (B) is the front view and top view of a wound core body which concern on a prior art example, respectively.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, a wound laminated core 10 to which the method for manufacturing a wound laminated core according to the first embodiment of the present invention is applied has 1 (a plurality of magnetic pole pieces) forming the magnetic pole part 11. It may have a wound core body 15 in which a strip-shaped core piece 14 in which a segment core piece 12 having a segment core piece 12 connected by a connecting portion 13 is bent and spirally wound by the connecting portion 13 is provided. The wound core body 15 has steps 17 and 18 at the start and end of winding of the strip-shaped core piece 14, and a magnet insertion hole 20 formed vertically through each magnetic pole portion 11 of the wound core body 15 is formed. Finally, permanent magnets 21 (unmagnetized ones are used at this time) are resin-sealed in the magnet insertion holes 20 to form the wound laminated core 10. Hereinafter, a method for resin-sealing the permanent magnet 21 to the wound core body 15 will be described.

The steps 18 and 17 formed on the upper and lower sides of the wound core body 15 are formed at a fixed angular position with respect to each connecting portion 13. In this embodiment, the end of the strip-shaped iron core piece 14 is located at the center of the connecting portion 13. Therefore, the end portions of the magnetic pole portions 11 and the end portions of the strip-shaped core pieces 14 coincide with each other. Accordingly, the center position in the circumferential direction of the magnet insertion hole 20 at the center in the circumferential direction of the magnetic pole portion 11 is always at a constant angular position with respect to the steps 17 and 18.

Then, first and second dummy plates 25 and 26 having steps 23 and 24 respectively corresponding to the upper and lower steps 18 and 17 are prepared. The first and second dummy plates 25 and 26 are made of stainless steel or the like, and the upper surface of the first dummy plate 25 and the lower surface of the second dummy plate 26 are respectively an upper mold (an example of a resin discharge mold) 28. The bottom surface 29 and the upper surface 31 of the lower mold (an example of a holding mold) 30 are in contact with each other without a gap. The upper mold 28 and the lower mold 30 are provided with heaters that heat the internal resin (usually a thermosetting resin such as an epoxy resin). In addition, the material of the dummy plate is not limited to stainless steel, but may be aluminum or iron.

The above-described step 23 is provided on the bottom surface of the first dummy plate 25, and an annular inclined surface 33 having the step 23 as a reference height is provided. The top surface (that is, the ceiling) of the second dummy plate 26 is provided. On the surface), the above-described step 24 is provided, and an annular inclined surface 34 having the step 24 as a reference height is formed so as to be in contact with the upper and lower surfaces of the wound core body 15 without a gap. That is, the inclined surfaces 33 and 34 are respectively formed according to the upper and lower surface inclinations of the wound core body 15.

The first dummy plate 25 has a through hole 37 having the same inner diameter as the substantially circular inner opening 36 formed inside the wound core body 15, and the second dummy plate 26 has a wound core body. A shaft (shaft) 38 that penetrates the 15 inner openings 36 is provided. The shaft 38 is inserted through a through hole 37 formed in the first dummy plate 25, and its tip is inserted into a positioning hole 39 formed in the bottom surface of the upper mold 28. In this embodiment, the second dummy plate 26 having the shaft 38 is used as a conveying jig for the wound core body 15, but the conveying jig may be prepared separately from the second dummy plate. it can. In this case, a shaft is formed in the conveying jig and penetrates through the second dummy plate (forms a through hole for the second dummy plate).

A plurality of resin pots 40 having a circular cross section penetrating vertically are formed in the upper mold 28 on the same circumference, and each resin pot 40 is provided with a plunger 41 for pushing the resin inside from below. The plunger 41 is moved up and down by a hydraulic cylinder (not shown).
The first dummy plate 25 is formed with a through-hole 43 that communicates radially inward with each magnet insertion hole 20 of the wound core body 15 immediately below the first dummy plate 25. A resin flow path (runner) 44 for guiding the resin from the resin pot 40 to the through hole 43 is formed on the bottom surface 29 of the upper mold 28. The resin flow path 44 can also be formed on the upper surface of the first dummy plate 25.

In the first dummy plate 25, the circumferential angle between the position of the step 23 and the (center) position of the through-hole 43 is a circle at the center position in the circumferential direction of the step 18 on the upper side of the wound core body 15 and the magnet insertion hole 20. It corresponds to the circumferential angle. Thus, if the positions of the step 18 of the wound core body 15 and the step 23 of the first dummy plate 25 are matched, the through hole 43 becomes the center position in the circumferential direction of the magnet insertion hole 20.

Next, a method for resin-sealing the wound core body 15 using the mold apparatus 45 having such a structure will be described. The pre-manufactured wound core body 15 has steps 18 and 17 on the upper and lower sides as described above. The wound core body 15 is placed on a second dummy plate 26 that also serves as a conveying jig. In this case, the inner opening 36 of the wound core body 15 is mounted on a shaft 38 standing at the center of the second dummy plate 26.

In this state, the step 24 formed in the second dummy plate 26 and the step 17 formed in the lower part of the wound core body 15 do not coincide with each other. Therefore, the wound core body 15 is rotated to rotate the wound core body 15. The step 17 and the step 24 of the second dummy plate 26 are made to coincide (that is, contact). As a result, the wound core body 15 is placed on the second dummy plate 26 without a gap. Thereafter, a permanent magnet (including an unmagnetized one) 21 is placed in the magnet insertion hole 20 of the wound core body 15. In this state, the wound core body 15 is placed on the lower mold 30. Alternatively, the wound core body 15 with the permanent magnet 21 inserted may be preheated in a state where it is placed on the second dummy plate 26 and then placed on the lower mold 30.

Next, the first dummy plate 25 is placed on the wound core body 15. Also in this case, since the step 18 of the wound core body 15 and the step 23 of the first dummy plate 25 do not coincide with each other, the first dummy plate 25 is rotated to match the steps 18 and 23 (contact). Let Thus, the first dummy plate 25 can be placed on the wound core body 15 without generating a gap between the bottom surface of the first dummy plate 25 and the upper surface of the wound core body 15.

In this state, the upper die 28 is lowered by operating a hydraulic cylinder (not shown), and the wound core body 15 to which the first and second dummy plates 25 and 26 are attached is sandwiched up and down. Then, when each plunger 41 of the upper mold 28 is lowered, the molten resin in the resin pot 40 is pushed out, filled into the magnet insertion hole 20 from the through hole 43 through the resin flow path 44, and the permanent magnet 21. The resin is cured by pressing outward in the radial direction.

Thereafter, the upper die 28 is raised, the first and second dummy plates 25 and 26 are attached, and the wound core body 15 with the permanent magnet 21 sealed with resin is taken out from the mold device 45, and the first, When the second dummy plates 25 and 26 are removed, the manufacture of the wound laminated core 10 is completed.
The first and second dummy plates 25 and 26 can be used repeatedly by removing the adhering resin.

In this embodiment, as long as there is one step 18 and 17 formed above and below the wound core body 15, the angles of the steps 18 and 17 in plan view of the wound core body 15 may be arbitrary. When the wound core body is a multi-strand winding using a plurality of strip-shaped core pieces, the positions of the steps formed on the upper and lower sides need to be determined in advance, and the steps provided on the first and second dummy plates The position is also matched with the step of the wound core body (the same applies to the following embodiments).

Then, the manufacturing method of the winding laminated iron core which concerns on the 2nd Embodiment of this invention is demonstrated, referring FIGS. The wound core body 47 applied to the second embodiment for manufacturing the wound laminated core 46 differs from the wound core body 15 used in the first embodiment in that there are 2 points respectively above and below the wound core body 47. Two steps 48, 49 and steps 50, 51, and the inner opening 53 of the wound laminated core 47 has a large diameter. In addition, about the manufacturing method of this wound iron core main body 47, it describes in detail in WO2008 / 0444420A1, for example. The steps 50 and 51 are the start of winding of the strip-shaped core piece, and the steps 48 and 49 are the end of winding of the strip-shaped core piece.

The circumferential positions of the steps 48 to 51 are the same for the plurality of wound core bodies 47. In this embodiment, it exists in the center position of the connection part of the segment iron core pieces 55 and 56 which adjoin. Therefore, the circumferential angle of the steps 48 and 49 and the circumferential angle of the steps 50 and 51 are formed at the same angular position with respect to the wound core body 47 to be resin-sealed using the same device. .

The first and second dummy plates 58 and 59 are disposed above and below the wound core body 47, but the first dummy plate 58 disposed on the wound core body 47 is disposed above the wound core body 47. The second dummy plate 59 disposed on the bottom of the wound core body 47 has steps 60 and 61 that match the steps 48 and 49 formed on the lower side of the wound core body 47. Steps 62 and 63 that correspond to the steps 50 and 51 formed in FIG. The second dummy plate 59 has a shaft 64 that fits into the inner opening 53 of the wound core body 47. The shaft 64 has a reduced diameter shaft portion 65 having a reduced diameter at the top.

The lower half of the first dummy plate 58 has an opening hole 67 into which the shaft 64 fits as it is, and the upper half of the first dummy plate 58 has a through hole 68 through which the reduced diameter shaft portion 65 passes. Yes. The tip of the reduced diameter shaft portion 65 is mounted in a positioning hole 71 formed in the lower center of the upper die (an example of a resin discharge die) 70.

The upper mold 70 is formed with a plurality of circular resin pots 72 penetrating the upper mold 70 on the same circumference. The radial position of the resin pot 72 is in the inner opening 53 of the wound core body 47 in plan view. On the upper surface of the first dummy plate 58, there are resin flow paths 75 and 76 that receive the resin from the resin pot 72 and guide it to the two adjacent magnet insertion holes 73. Therefore, when the plunger 77 is pushed down by a hydraulic cylinder (not shown), the molten resin is pushed out from the resin pot 72 and the permanent magnet 78 is moved through the resin flow paths 75 and 76 formed on the upper side of the first dummy plate 58. The magnet insertion hole 73 inserted in advance is filled.

In this way, by forming the first dummy plate 58, the mold device 80 having the upper mold 70 and the lower mold (an example of a holding mold) 79 can be obtained even if the specifications of the wound core body 47 are slightly changed. Versatility increases and can be used widely.
On the other hand, as described above, the shaft 64 (an example of a guide member) is erected on the second dummy plate 59, but the center shaft 64 is not provided on the second dummy plate 59. You may provide in the conveyance jig arrange | positioned at the bottom part of the 2nd dummy plate 59. FIG. In this case, the second dummy plate 59 is provided with a through-hole through which the shaft 64 penetrates (the same applies to the method for manufacturing a wound laminated iron core according to the first embodiment).

The upper surface of the first dummy plate 58 and the bottom surface of the second dummy plate 59 have a horizontal surface and are in contact with the bottom surface of the upper mold 70 and the upper surface of the lower mold 79. The first dummy plate The lower surface of 58 and the upper surface of the second dummy plate 59 are inclined in accordance with the surface inclination of the upper surface and the bottom surface of the wound core body 47 and are in contact with the upper and lower sides of the wound core body 47 without any gap.

A method for manufacturing the wound laminated iron core according to the second embodiment will be described.
The manufactured wound core body 47 is placed on the second dummy plate 59 in advance. In this case, the shaft 64 is attached to the inner opening 53 of the wound core body 47, and the steps 50 and 51 provided on the bottom of the wound core body 47 and the step 62 formed on the upper surface of the second dummy plate 59, 63 is matched. Then, a permanent magnet 78 is inserted into each magnet insertion hole 73.

In this state, the mold apparatus 80 is positioned and placed on the lower mold 79. Then, the first dummy plate 58 is placed on the wound core body 47. As a result, the tip of the shaft 64 passes through the opening hole 67 and the through hole 68 of the first dummy plate 58 and fits into the positioning hole 71 of the upper mold 70. In this state, the steps 48 and 49 formed on the wound core body 47 and the steps 60 and 61 formed on the bottom (ie, the lower portion) of the first dummy plate 58 are matched.
Next, the upper die 70 is lowered and the wound core body 47 is pressed through the first and second dummy plates 58 and 59.

Next, when the plunger 77 is lowered by operating a hydraulic cylinder (not shown), the heated resin is pushed out from the resin pot 72 and filled into the magnet insertion hole 73 through the resin flow paths 75 and 76. The wound core body 47 is preheated in advance, and the upper mold 70 and the lower mold 79 are also heated by a heater or the like.
As a result, the resin sealing of the magnet insertion hole 73 is completed, so that the wound laminated iron core 46 is taken out from the mold apparatus 80 together with the first and second dummy plates 58 and 59, and the first and second dummy plates 58, 59 is removed, and a wound laminated iron core 46 to be a product is completed.

As shown in FIG. 5, the wound core body 47 is formed by using two strip core pieces, the upper and lower segment core pieces are connected by a caulking portion 83, and further, the radial direction of each magnetic pole portion 84. A through-hole 85 for weight reduction and positioning is formed inside.

Next, a method for manufacturing the wound laminated core according to the third embodiment of the present invention shown in FIG. 6 will be described. The method for manufacturing a wound laminated core according to this embodiment is the first dummy plate 58 in contact with the upper mold 70 that is a resin discharge mold in the method for producing a wound laminated core according to the second embodiment of the present invention. Are divided into two parts to form an upper dummy plate 87 (an example of dummy plate A) and a lower dummy plate 88 (an example of dummy plate B).

The upper dummy plate 87 is formed of a flat plate, and a resin flow path 89 that finally leads the resin from the resin pot 72 to the magnet insertion hole 73 is formed. The lower dummy plate 88 has a resin that passes through the resin flow path 89. Is formed with a resin injection hole 90 that leads to the magnet insertion hole 73 of the lower wound core body 47. The lower surface of the lower dummy plate 88 has steps 60 and 61 according to the upper shape of the wound core body 47, and the lower surface of the lower dummy plate 88 becomes a circumferentially inclined surface according to the surface shape of the wound core body 47. This is the same as the first dummy plate 58 according to the second embodiment. The separation surface of the upper dummy plate 87 and the lower dummy plate 88 is the bottom surface of the resin flow path 89.

Therefore, in this embodiment, the lower dummy plate 88 is placed on the wound core body 47, the positions of the steps 60 and 61 are aligned with the steps 48 and 49 of the wound core body 47, and the lower dummy plate 88 is moved to the wound core. The body 47 is tightly bonded. In this state, the upper dummy plate 87 is placed on the lower dummy plate 88. The upper dummy plate 87 and the lower dummy plate 88 are provided with positioning means (pins and holes) (not shown), and the upper dummy plate 88 is always located at a predetermined position of the lower dummy plate 88 (that is, a position where the resin flow path 89 and the resin injection hole 90 communicate). A plate 87 is placed thereon.

In this state, the plunger 77 is pushed down to push out the resin from the resin pot 72, and the resin is put into the magnet insertion hole 73 through the resin flow path 89 and the resin injection hole 90. After the resin sealing into the magnet insertion hole 73 is completed, the wound core body 47 sealed with resin from the upper mold 70 and the lower mold 79 is taken out together with the upper dummy plate 87 and the lower dummy plate 88. Then, the upper dummy plate 87 and the lower dummy plate 88 are removed. Although the resin adhering to the upper dummy plate 87 and the lower dummy plate 88 is removed, the resin flow path 89 and the resin injection hole 90 penetrate vertically so that the remaining resin can be easily cleaned. The second dummy plate 59 may be taken out together with the core body 47 sealed with resin.

The present invention is not limited to the above-described embodiment, and the configuration thereof can be changed without changing the gist of the present invention. For example, the present invention is also applied when the shape and size of the wound laminated iron core, the size of the inner opening, the number of steps, and the like are different.
Also, the resin flow path can be omitted by overlapping the same position or a part of the position of the resin pot and the position of the magnet insertion hole in plan view. Thereby, the resin residue in the first dummy plate can be easily removed.

10: wound laminated iron core, 11: magnetic pole portion, 12: segment core piece, 13: connecting portion, 14: strip-shaped iron core piece, 15: wound core body, 17, 18: step, 20: magnet insertion hole, 21: permanent magnet , 23, 24: steps, 25: first dummy plate, 26: second dummy plate, 28: upper mold, 29: bottom mold, 30: lower mold, 31: upper mold, 33, 34: inclined plane, 36: Inner opening, 37: through hole, 38: shaft, 39: positioning hole, 40: resin pot, 41: plunger, 43: through hole, 44: resin flow path, 45: mold device, 46: wound laminated iron core, 47: wound core body, 48-51: step, 53: inner opening, 55, 56: segment core piece, 58: first dummy plate, 59: second dummy plate, 60-63: step, 64: Shaft, 65: Reduced diameter shaft portion, 67 Opening hole, 68: Through hole, 70: Upper mold, 71: Positioning hole, 72: Resin pot, 73: Magnet insertion hole, 75, 76: Resin flow path, 77: Plunger, 78: Permanent magnet, 79: Lower mold 80: mold apparatus, 83: caulking part, 84: magnetic pole part, 85: through hole, 87: upper dummy plate, 88: lower dummy plate, 89: resin flow path, 90: resin injection hole

Claims (9)

The strip core pieces, in which each segment core piece is connected at the connecting portion, are bent at the connecting portion and spirally wound to form a wound core body, and there are steps at the winding start and end of the strip-like core pieces. The magnet insertion hole formed vertically through each magnetic pole part of the wound core body is a method for manufacturing a wound laminated core in which a permanent magnet is resin-sealed,
Wherein the upper and lower of the winding core body, wherein the permanent magnet is inserted in each magnet insertion holes, and have a level difference that conforms to the step, placing each dummy plate abutting without any gap on the upper and lower surfaces of the wound core body A first step of disposing the wound core body between the resin discharge mold and the holding mold via the dummy plate;
A second step of extruding a resin from a resin pot formed in the resin discharge mold and filling the magnet insertion holes with the resin through the dummy plate in contact with the resin discharge mold;
A method for producing a wound laminated core, comprising: a third step of taking out the wound laminated core in which the permanent magnet is sealed with resin from the resin discharge mold and the holding mold. 2. The method of manufacturing a wound laminated core according to claim 1, wherein an end portion of the belt-shaped core piece is positioned at an end portion of the magnetic pole portion, and the magnet insertion hole is positioned at a constant angle with respect to the end portion of the strip-shaped core piece. A method for producing a wound laminated iron core, comprising: 3. The method for manufacturing a wound laminated core according to claim 1, wherein each of the segment core pieces has one or more magnetic pole pieces. 4. The method for manufacturing a wound laminated iron core according to claim 1, wherein the resin pot is formed on the dummy plate that vertically penetrates the resin discharge mold and is in contact with the resin discharge mold. A method for manufacturing a wound laminated iron core, comprising filling the magnet insertion hole with the resin through a resin flow path. 5. The method for manufacturing a wound laminated core according to claim 4, wherein the resin pot is positioned in an inner opening of the wound core body in plan view. In the manufacturing method of the winding laminated iron core of any one of Claims 1-5, one of the said dummy plates arrange | positioned up and down is also used as a conveyance jig, and this conveyance jig is the center of the said winding iron core main body. A method for manufacturing a wound laminated iron core, comprising an axis coinciding with an inner opening formed on the inner surface. In the manufacturing method of the winding laminated iron core of any one of Claims 1-6, while each dummy plate is formed with the inclined surface according to the surface inclination of the said wound core main body on one surface, the other A method for manufacturing a wound laminated iron core, characterized in that the surface is a flat surface. 5. The method of manufacturing a wound laminated iron core according to claim 4, wherein the dummy plate contacting the resin discharge mold is divided into two, the resin flow path is formed in the dummy plate A directly contacting the resin discharge mold, and the winding A method for manufacturing a wound laminated core, wherein a resin injection hole for injecting resin flowing through the resin flow path into the magnet insertion hole is provided in a dummy plate B that is in direct contact with the iron core body. 9. The method of manufacturing a wound laminated iron core according to claim 8, wherein the positions of the dummy plate A and the dummy plate B are determined by the position of the resin injection hole with respect to the resin flow path by positioning means. A method for manufacturing a wound laminated iron core.

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