JP2008078346A - Manufacturing method and manufacturing apparatus for laminated core - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method and a manufacturing apparatus for laminated core that dispense with caulking, when laminating a core member, absorb accumulation errors due to the deviation in the thickness of the core member, and that can attain high-accuracy shape. <P>SOLUTION: A string-like thermoplastic resin 2, delivered from a resin roll 20, is arranged on a magnetic plate 1 delivered from a flat roll 10; the magnetic plate 1, where the string-like thermoplastic resin 2 is arranged is punched and laminated into a plurality of core members by an upper die 5 and a lower die 6; and the laminated core members are bonded by the heating of a heating element, or the like that is installed in the lower die 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method and apparatus for manufacturing a laminated core in which magnetic plate materials used for motors, generators, transformers, and the like are laminated.

  In a conventional method for manufacturing a laminated core, the core member is caulked and laminated at the time of punching. That is, by forming, for example, a convex portion on the front side and a concave portion on the back side in the thickness direction of the core member to be punched, the concave and convex portions are press-fitted and the core members are fixed to each other by stacking. (For example, refer to Patent Document 1).

  In addition, a method is shown in which an insulating adhesive is applied to the core member and laminated, and the core members are bonded together by applying varnish as an adhesive or immersing the laminated core member in the adhesive. (For example, refer to Patent Document 2).

JP-A-6-165447 ([0007] to [0009], FIG. 5) JP 2003-324869 ([0017], [0018], FIG. 1)

  In a method of caulking a core member that has been conventionally used as a method for manufacturing a laminated core, it is necessary to provide irregularities on the core member. However, in order to ensure the positional accuracy of the irregularities between the laminated core members, A pressing process is required. For this reason, there exists a problem that a metal mold | die becomes large, a press machine itself becomes large, a some metal mold | die is needed, and an installation becomes expensive.

  In addition, there is a problem in that, by forming an uneven portion on a thin core member or caulking, processing distortion occurs in the core member and the magnetic characteristics are deteriorated. As the product becomes smaller, the influence of the processing strain due to caulking on the magnetic characteristics becomes larger, which makes it difficult to reduce the size.

  In addition, there is a method of suppressing eddy current by laminating a thin core member in order to improve magnetic characteristics, but there is a problem that it becomes difficult to form unevenness when the plate thickness is reduced.

  Since the caulking portion is only fixed by press fitting, not all the core members to be laminated are completely fixed, and there is a portion where a gap is generated between the irregularities. For this reason, there was a problem that the core members slip relative to each other during use and generate noise.

  As a method for suppressing the deterioration of magnetic characteristics due to processing strain, there is a method of fixing the core member with an adhesive, but there is a problem that the dimensional accuracy is deteriorated because the coating thickness of the adhesive varies.

  There are also methods to immerse the laminated core member in the adhesive or to infiltrate the adhesive between the punched core members, but it is difficult to allow the adhesive to penetrate into the air in the atmosphere. Are often impregnated in a vacuum.

  In addition, when an adhesive is used, the adhesive may leak between the laminated core members, and there is a problem that the manufacturing cost becomes high, such as a step of removing the protruding adhesive.

  The present invention has been made in order to solve the above-described conventional problems, and does not require caulking when the core members are laminated, and has a highly accurate shape that absorbs accumulated errors due to thickness deviation of the core members. A method and apparatus for manufacturing a laminated core are provided.

  The method for producing a laminated core according to the present invention includes a step of arranging a thermoplastic resin on a magnetic plate material, stamping and laminating the magnetic plate material on a plurality of core members, and a step of fixing the laminated core members to each other with a thermoplastic resin. Consists of.

  In particular, the thermoplastic resin is a thread-shaped resin, and the thread-shaped resin is partially arranged rather than the entire surface of the core member.

  According to the method for manufacturing a laminated core according to the present invention, since the core member is fixed by the thermoplastic resin, caulking is not required, and the laminated core can be produced at low cost by reducing the mold cost.

  Further, since caulking is not necessary, it is possible to reduce processing strain generated in the core member and obtain a laminated core having good magnetic properties.

  In addition, by fixing the core member with a thermoplastic resin, the adhesive strength is improved and the core members do not slide relative to each other, and even if an external force is applied during winding of the coil, the shape is not easily collapsed, and the accuracy is high. A high laminated core can be obtained.

  Furthermore, when the laminated core is disassembled, by heating, the thermoplastic resin is melted again, the core member is disassembled, and the recycling cost can be reduced.

  In particular, since each core member is fixed by melting the thermoplastic resin that is partially arranged rather than the entire surface of each core member, the heated thermoplastic resin is thinly formed between the core members, and the eddy current loss is reduced. By reducing the iron loss, the accumulated error due to the thickness deviation of the core member can be absorbed and a highly accurate shape can be obtained. For this reason, it is possible to reduce noises such as a beat sound emitted from the laminated core, and to obtain a motor having high energy conversion efficiency and less electromagnetic noise and vibration.

Embodiment 1 FIG.
1 is a cross-sectional view of a principal part showing a laminated core manufacturing apparatus and manufacturing method according to Embodiment 1 of the present invention. The magnetic plate material 1 is fed out from a plate material roll 10 around which a magnetic plate material 1 such as an iron plate or an electromagnetic steel plate having a thickness of 1 mm or less is wound, and a pair of thermoplastic resin rolls 20 that are also wound in a roll shape are used as a mold mechanism (upper die). 3. Arranged in the vicinity of the lower mold 4), the thread-like resin 2 having a diameter of about 200 μm is fed from the resin roll 20 and arranged on the magnetic plate material 1. Then, the magnetic plate material 1 and the thread-like resin 2 are conveyed between the upper die 3 and the lower die 4 and are punched by the upper die 3 and the lower die 4. In this manner, the magnetic plate material 1 on which the thread-like resin 2 is arranged is laminated by sequentially repeating the conveyance of the magnetic plate material 1 and punching with a mold. FIG. 2A is a perspective view showing how the magnetic plate 1 is punched in this case. In the example of FIG. 2A, the magnetic plate 1 has a substantially T-shaped core comprising a yoke part 1a, a tooth part 1b protruding from the yoke part 1a, and a tooth tip part 1c located at the tip of the tooth part 1b. Punched into member 1A. Moreover, as the thermoplastic thread-like resin 2, thermoplastic materials such as nylon, vinyl chloride, polypropylene, polystyrene, and polyethylene can be used.

  As described above, the punched and laminated magnetic plate material 1 and the thread-like resin 2 are arranged on a positioning jig 5 provided with positioning pins 5a as shown in FIG. As shown in (b), the magnetic plate material 1 laminated by the pressing jig 6 is pressed and pressurized, and in this state, the filamentous resin 2 is melted by being left in a heating furnace for a predetermined time. Then, the magnetic plate material 1 and the positioning jig 5 are taken out from the heating furnace and cooled, and the laminated magnetic plate material 1 is fixed by the thread-like resin 2. FIG. 2B is a perspective view showing a state in which the laminated core 100 is manufactured by fixing the laminated magnetic plate materials 1 with the thread-like resin 2.

  In the example shown in FIG. 3, the laminated magnetic plate 1 is left and fixed in a heating furnace. However, as shown in FIG. May be. In addition, there are heating methods such as induction heating and laser irradiation. Further, as shown in FIG. 4B, the ultrasonic vibrator 8 is provided in the pressing jig 6 and the magnetic plate material 1 is ultrasonically vibrated, thereby melting the filamentous resin 2 and fixing the magnetic plate material 1. You can also. In the example shown in FIG. 4B, the ultrasonic vibrator 8 is attached to the pressing jig 6. However, it may be attached to the positioning jig 5, and the magnetic resin 1 is fixed by melting the filamentous resin 2. be able to.

  Further, in the example shown in FIG. 1, only one pair of roll-shaped thread-like resins 2 is arranged. However, as shown in FIG. By disposing a plurality of resins 2 on the magnetic plate material 1, the adhesive strength between the magnetic plate materials 1 can be increased and the reliability can be improved. Further, only one thread-like resin 2 may be arranged.

  Next, in the present embodiment, by disposing the filamentous resin 2 partially rather than between the magnetic plates 1, the thickness deviation of the magnetic plate 1 is absorbed and a constant laminated height is obtained over the entire laminated core. The effect to be obtained will be described. As shown in FIG. 6, the filamentous resin 2 is partially arranged on the magnetic plate 1 rather than the entire surface (in two rows in the example of FIG. 6), and the upper and lower magnetic members 1-1 and 1-4 are in a parallel state. Pressurize to maintain. At this time, even if a magnetic plate material having a plate thickness deviation (plate plate 1-3 in FIG. 6) exists, the thread-like resin 2 is divided into a thin resin portion and a thick portion as shown in the figure, and the above plate thickness deviation. By melting so as to absorb, the height of the laminated core 100 is maintained at a predetermined laminated height H over the entire surface of the magnetic plate 1 (core member 1A).

  Here, a suitable arrangement of the thread-like resin 2 on the magnetic plate material 1 will be considered. FIG. 7 shows an example in which two thermoplastic thread-like resins 2 are arranged on the core member 1A from which the magnetic plate material 1 is punched. The areas of the thermoplastic resin are S1 and S2, respectively, and the centroids are G1 and G2. The distances from the centroid O of the core member 1A to the centroids G1 and G2 of the thermoplastic resins are r1 and r2, the density of the thermoplastic resin is ρ, and the main axis passes through the centroid O (the paper plane passing through the centroid O in FIG. 7). ) And the centroids G1 and G2, the sum of the moments of the thermoplastic resin in the principal axis direction is almost zero, that is, ρ · r1 · S1 · sinθ1 + ρ · r2 · S2. When satisfying sin θ2 = 0, the arrangement balance of the thermoplastic resin is improved, and the plate thickness deviation of the magnetic plate 1 can be further absorbed to obtain a constant stacking height over the entire surface of the stacked core.

  Here, when the above equation is generalized, the area of the thermoplastic resin is S1, S2,..., Sn, and the centroids are G1, G2,. The distance from the centroid O of the core member 1A to the centroids G1, G2,..., Gn of each thermoplastic resin is r1, r2,..., Rn, the density of the thermoplastic resin is ρ, and the centroid O is When the angles θ1, θ2,..., Θn formed by the main axis passing through and the centroids G1, G2,..., Gn are substantially zero, the sum of the moments of the thermoplastic resin in the main axis direction is substantially zero. When Expression (1) is satisfied, the arrangement balance of the thermoplastic resin is improved.

  In addition, according to the present embodiment, by bonding the magnetic plate material 1 with the thermoplastic thread-like resin 2, caulking is unnecessary, and the die cost for punching the magnetic plate material 1 is reduced, and the laminated core can be manufactured at low cost. Can be manufactured. In the conventional laminated core bonded by caulking, not all the magnetic plate 1 is fixed at the press-fitting portion of the uneven portion, and a gap is partially generated at the uneven portion due to the dimensional error of the magnetic plate 1. There is also. However, in the present embodiment, by fixing the magnetic plate 1 with the thermoplastic thread-like resin 2, there can be obtained a laminated core with good dimensional accuracy without deviation between the magnetic plates 1.

  In addition, when the magnetic plate 1 is caulked, the magnetic plate 1 is warped, the gaps between the magnetic plates 1 become non-uniform, eddy current loss increases, and dimensional accuracy deteriorates. However, when the magnetic plate material 1 is partially bonded, a thin and uniform gap is formed, and a laminated core with good dimensional accuracy can be obtained.

  Further, when the laminated core 100 is discarded, by heating, the filamentous resin 2 can be melted again and the laminated core 100 can be decomposed, and the recycling cost can be reduced.

  In addition, according to the present embodiment, the arrangement of the thread-like resin 2 and the punching, lamination, and fixing of the magnetic plate material 1 can be performed almost simultaneously, so the time spent for manufacturing can be shortened, and the laminated core with good performance at low cost. Can be obtained.

  When applying an adhesive to a magnetic plate, the adhesive leaks, so if the adhesive is applied, the magnetic plate is punched out, and laminated almost simultaneously, the leaked adhesive will adhere to the mold and the accuracy of the laminated core May deteriorate or maintenance may take time, but as in this embodiment, by using the filamentous resin 2 as an adhesive, the resin does not adhere to the mold, and the laminated core can be manufactured at low cost. can do.

Embodiment 2. FIG.
In the first embodiment, the thread-like resin 2 is made into a roll shape and is arranged on the magnetic plate 1 while rotating the resin roll 20. However, as shown in FIG. 8, the thread-like resin 2 is installed on the shuttle 12. The shuttle 12 can be reciprocated along the guide 13 and disposed on the magnetic plate 1. For example, as shown in FIG. 8B, the shuttle 12 is reciprocated by a method of forming a hole shape that supports both sides of the shuttle 12 in the guide 13 and inserting the shuttle 12 and flying with air. Can do.

  In the example shown in FIG. 8, the guide 13 is arranged in the same direction as the conveyance direction of the magnetic plate material 1 so that the shuttle 12 reciprocates in the conveyance direction of the magnetic plate material 1. In this way, by arranging the guide 13 with a right angle or an inclination in the conveying direction of the magnetic plate 1, the filamentous resin 2 is arranged obliquely with respect to the magnetic plate 1 as shown in FIG. By disposing the thread-like resin 2 diagonally, the adhesion area per resin thread is increased, the adhesive force of the magnetic plate material 1 is increased, and the reliability can be improved.

  According to the present embodiment, the thermoplastic resin can be arranged on the magnetic plate 1 in a short time by reciprocating the shuttle 12 on which the thread-like resin 2 is installed. Moreover, since the amount of the thermoplastic resin arranged on the magnetic plate 1 can be freely adjusted by adjusting the reciprocating speed of the shuttle 12, the manufacturing cost can be reduced.

  The shuttle 12 can also be installed in the lower mold 4 as shown in FIG. An insertion hole 13a is provided in the lower mold 4 and the shuttle 12 is disposed in the insertion hole 13a. By reciprocating the shuttle 12 in the lower mold 4, there is an effect that the equipment can be made compact.

  As another arrangement method of the filamentous resin 2 on the magnetic plate material 1, there is a method shown in FIG. The thread-like resin 2 from the resin roll 20 is passed through the nozzle 14, the nozzle 14 is placed in the vicinity of the molds 3 and 4, and the resin roll 20 is rotated, whereby the thread-like resin 2 can be arranged on the magnetic plate 1. it can. By feeding the filamentous resin 2 using the nozzle 14, even if the number of filamentous resins 2 increases, the filamentous resin 2 can be arranged on the magnetic plate 1 with high accuracy so that the interval between the filamentous resins 2 does not shift. It is possible to improve the adhesion of the magnetic plate 1 and improve the reliability of the device.

  In the method shown in FIG. 11, it may take time to pass the thread-like resin 2 through the nozzle 14 for maintenance such as the breakage of the thread-like resin 2 or replacement of the thread-like resin 2. As a method of avoiding such a problem, it is also possible to send the filamentous resin 2 by air. As shown in FIG. 12, air is supplied from the air source 15 to the nozzle 14 through the air supply pipe 16. Even if thread breakage occurs by blowing the filamentous resin 2 with air, the filamentous resin 2 can be passed by negative pressure just by bringing the filamentous resin 2 to the inlet of the nozzle 14, and the stop time and setup of the device Time can be shortened. Further, even if the thin thread-like resin 2 is used, the thread-like resin 2 can be easily inserted into the nozzle 14.

  Further, as shown in FIG. 13, the nozzle 14 can be easily embedded in the lower mold 4, and there is an effect that the apparatus can be made compact.

  As a method for conveying the filamentous resin 2 without using air, for example, there is a method shown in FIG. As the nozzle, the vibrating nozzle 17 is used, and the vibrating nozzle 17 can be ultrasonically vibrated to feed the filamentous resin 2. As the vibration type nozzle 17, as shown in FIG. 14B, it can be formed of a laminated piezoelectric element. As described above, by sending the filamentous resin 2 with ultrasonic waves, even a thin thread can be easily passed through the nozzle, and by using the piezoelectric element, power consumption for feeding the thread can be saved. .

Embodiment 3 FIG.
In the above embodiment, the manufacturing method in which the thread-like resin 2 is arranged on the magnetic plate 1 as it is has been described. However, as shown in FIG. 15, the powder-like thread-like resin 18 obtained by finely chopping the thread-like resin 2 is added to the mixing container 17. It is also possible to blow the powdery resin 18 by air supplied from the air source 20.

  By providing the outlet 4a in the lower mold 4 and putting the powdery thread-shaped resin 18 on the air and sprinkling the air from the outlet 4a onto the magnetic plate 1 and laminating the magnetic plate 1, the powder between the magnetic plates 1 is obtained. A thread-like resin 18 can be disposed. With the configuration of the apparatus shown in FIG. 15, a large number of laminated cores can be manufactured stably without causing yarn breakage. Moreover, since the filamentous resin 2 can be uniformly disposed on the magnetic plate material 1, a device having high adhesive strength and high reliability can be obtained.

Embodiment 4 FIG.
In the above embodiment, the magnetic plate material 1 on which the thread-like resin 2 is arranged is punched out, and after laminating the magnetic plate material 1, the heating is performed to melt the thread-like resin 2, and the magnetic plate materials 1 are fixed to each other. As shown in FIG. 16, the lower die 4 may be kept at a predetermined temperature at all times by embedding a heater 26 in the lower die 4. The magnetic plate material 1 punched into the lower die 4 is heated by heat transfer from the lower die 4, and the magnetic plate material 1 is punched, and at the same time, the filamentous resin 2 is melted to bond the magnetic plate material 1. In addition, what is necessary is just to embed the heater 26 so that the circumference | surroundings of the magnetic board | plate material 1 (core member 1A) may be enclosed, as shown in FIG.16 (b).

  Thus, by providing the lower die 4 with a heating element, the magnetic plate 1 is fixed with the thread-like resin 2 at the same time as punching, and a laminated core can be manufactured in a short time, and an inexpensive laminated core can be obtained. .

  In the above example, the heater 26 is used in the lower mold 4. However, instead of the heater 26, a heating coil 27 is embedded as in FIG. 16, and the heating coil 27 is energized. By doing so, an eddy current may be generated in the lower mold 4 to heat the lower mold 6.

  In the example shown in FIG. 16, the heating source such as the heater 26 and the heating coil 27 is embedded in the lower mold 4. However, when the start-up time until the facility operation may be slightly longer, As shown in FIG. 17, the same effect can be obtained simply by disposing the heater 26 and the heating coil 27 below the lower mold 4. In this case, since it is not necessary to provide a heating body in the lower mold 4, the manufacturing cost of the lower mold 4 can be saved.

  In the example shown in FIGS. 16 and 17, the heating body is provided for the lower mold 4, but the heating body is not necessarily arranged on the lower mold 4. As shown in FIG. 18A, the heater 26 and the heating coil 27 can be embedded in the upper mold 5. Further, as shown in FIG. 18B, the same effect can be obtained even if the heater 26 and the heating coil 27 are arranged on the upper part of the upper mold 5.

  Further, as shown in FIG. 19, by introducing the laser beam from the laser beam emitter 24 between the upper mold 3 and the lower mold 4, the magnetic plate material 1 is locally heated to melt the filamentous resin 2. The magnetic plate 1 can be fixed simultaneously with the punching of the magnetic plate 1. By using laser light, heating can be performed in a short time without contact, and thus there is an effect that a large number of laminated cores can be manufactured. Further, since the magnetic plate 1 is locally heated, the thermoplastic resin does not adhere to the mold, and the mold maintenance cost can be reduced.

  As a method of locally heating the magnetic plate 1, a discharge phenomenon can be used. As shown in FIG. 20, a spark is generated between the electrodes 32 by applying a high voltage to a pair of electrodes 32 connected to the coil 31. When the magnetic plate 1 is punched, the electrode 32 is moved instantaneously so as not to interfere with the mold. When the upper die 3 moves upward, the operation of moving the electrode 32 between the upper die 3 and the lower die 4 to generate a spark is repeated. Thus, while punching out the magnetic plate 1 with a mold, a spark is generated to locally heat the magnetic plate 1 to melt the filamentous resin 2 and fix the magnetic plate 1. As described above, since the magnetic plate material 1 is locally heated, the thermoplastic resin does not adhere to the mold, and the maintenance cost of the mold can be reduced. Moreover, compared with the case where a laser beam is used, an installation cost can be saved and a laminated core can be manufactured at low cost.

  In the example shown in FIG. 20, a spark is generated by applying a high voltage. However, a spark may be generated by installing a piezoelectric element instead of a high-voltage power supply and applying a load to the piezoelectric element.

Embodiment 5. FIG.
In the fourth embodiment, the method of melting the filamentous resin 2 by heating the magnetic plate 1 or the mold is shown, but the magnetic plate 1 can be fixed using ultrasonic vibration. As shown in FIG. 21, a built-in type vibrator 43 including an indenter 41 and a vibrator 42 is arranged below the lower mold 4 so as to press the punched magnetic plate material 1. The filamentous resin 2 is fixed to the magnetic plate 1 by vibrating and rubbing the magnetic plate 1 and the filamentous resin 2 with the built-in vibrator 43. Since it is not necessary to heat the magnetic plate material 1 or the mold, it is possible to shorten the mold maintenance and setup time required to remove the attached thermoplastic resin.

  Further, as shown in FIG. 22, the built-in vibrator 43 may be disposed on the side surface of the lower mold 4 to vibrate the magnetic plate 1 from the side surface. By arranging on the side instead of the lower side of the magnetic plate 1, there is no need to move the built-in vibrator 23 according to the change in the number of magnetic plates 1, and a small and inexpensive facility can be obtained. Manufacturing cost can be reduced.

It is principal part sectional drawing which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 1 of this invention. It is a perspective view which shows the mode of the punching and lamination | stacking of the magnetic board | plate material by Embodiment 1 of this invention. It is a figure which shows the mode of the positioning of the magnetic board | plate material by Embodiment 1 of this invention. It is a figure which shows the mode of the adhering of the laminated magnetic board material by Embodiment 1 of this invention. It is a figure which shows the manufacturing method of the laminated core of the other example by Embodiment 1 of this invention. It is sectional drawing which shows the state of lamination | stacking of the magnetic board | plate material by Embodiment 1 of this invention. It is a top view which shows the mode of arrangement | positioning of the filamentous resin by Embodiment 1 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of the laminated core by Embodiment 2 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 3 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 4 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 4 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 4 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 4 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 4 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 5 of this invention. It is a figure which shows the manufacturing apparatus and manufacturing method of a laminated core by Embodiment 5 of this invention.

Explanation of symbols

1 magnetic plate material, 1A core member, 2 thread resin, 3 upper mold, 4 lower mold,
5 Positioning jig, 6 Pressing jig, 7 Heater, 8 Ultrasonic vibrator, 10 Resin roll, 12 Shuttle, 13 Guide, 14 Nozzle, 15 Air source, 16 Air supply pipe, 17 Vibrating nozzle, 18 Powdery Threaded resin, 19 mixed container, 20 air source,
26 heaters, 27 heating coils, 24 laser emitters, 31 coils,
32 electrodes, 43 built-in vibrator, 100 laminated core.

Claims (18)

A method for producing a laminated core comprising a step of arranging a thermoplastic resin on a magnetic plate material, punching and laminating the magnetic plate material on a plurality of core members, and a step of fixing the laminated core members together with the thermoplastic resin . The method for manufacturing a laminated core according to claim 1, wherein the thermoplastic resin is a thread-like resin, and the thread-like resin is partially arranged instead of the entire surface of the core member. An apparatus for manufacturing a laminated core comprising a mechanism for arranging a thermoplastic resin on a magnetic plate material, and a mold mechanism comprising an upper die and a lower die for punching and laminating the magnetic plate material having the thermoplastic resin arranged thereon to a plurality of core members. 4. The laminated core according to claim 3, wherein the thermoplastic resin is a thread-shaped resin, and is sent out from the resin roll around which the thread-shaped resin is wound onto the magnetic plate material and disposed on the magnetic plate material. Manufacturing equipment. 4. The laminated core according to claim 3, wherein the thermoplastic resin is a thread resin, and the shuttle resin in which the thread resin is disposed is reciprocated to dispose the thread resin on the magnetic plate material. apparatus. 4. The thermoplastic resin according to claim 3, wherein the thermoplastic resin is a thread-like resin, is passed through a nozzle from a resin roll around which the thread-like resin is wound, and the thread-like resin is disposed on the magnetic plate through the nozzle. Laminate core manufacturing equipment. The apparatus for producing a laminated core according to claim 6, wherein the thread resin is blown on an air flow introduced into the nozzle, and the thread resin is disposed on the magnetic plate through the nozzle. 4. The thermoplastic resin according to claim 3, wherein the thermoplastic resin is a thread-like resin, the thread-like resin is introduced into a nozzle, and the thread-like resin is arranged on the magnetic plate member by ultrasonically vibrating the nozzle. Laminate core manufacturing equipment. 9. The laminated core manufacturing apparatus according to claim 8, wherein the nozzle is laminated with a piezoelectric material. The said shuttle or the said nozzle is arrange | positioned in the said lower mold | type, The manufacturing apparatus of the laminated core of any one of Claims 5-9 characterized by the above-mentioned. The apparatus for producing a laminated core according to claim 3, wherein the thermoplastic resin is a powdery thread-like resin, and the powdery thread-like resin is placed on the magnetic plate member in an air stream. A method for producing a laminated core comprising a step of arranging a thermoplastic resin on a magnetic plate material, stamping and laminating the magnetic plate material on a plurality of core members, and simultaneously welding the thermoplastic resin to fix the magnetic plate materials together. The method for manufacturing a laminated core according to claim 12, wherein the thermoplastic resin is a thread-shaped resin, and the thread-shaped resin is partially disposed not on the entire surface of the core member. A resin arrangement mechanism that arranges a thermoplastic resin on a magnetic plate material, and the magnetic plate material on which the thermoplastic resin is arranged are punched and laminated on a plurality of core members, and at the same time, the thermoplastic resin is welded to fix the magnetic plate materials to each other. An apparatus for manufacturing a laminated core comprising a mold mechanism comprising an upper mold and a lower mold. The laminated body according to claim 14, wherein a heating body for heating the magnetic plate material punched and laminated on a plurality of core members is disposed on either the upper mold or the lower mold. Core manufacturing equipment. 15. The thermoplastic resin is melted and the magnetic plate material is fixed in the mold mechanism by irradiating and heating a laser beam immediately after being punched and laminated on a plurality of core members. The manufacturing apparatus of the lamination | stacking core of description. 15. The method according to claim 14, wherein the thermoplastic resin is melted and the magnetic plate material is fixed in the mold mechanism by generating a spark due to a discharge phenomenon immediately after being punched and laminated on a plurality of core members. The manufacturing apparatus of the laminated core of description. An oscillator is disposed in the lower mold, and the magnetic plate material punched and laminated on a plurality of core members is ultrasonically vibrated to adhere to the magnetic plate material in the mold mechanism. Item 15. A laminated core manufacturing apparatus according to Item 14.

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