JP5576460B2 - Laminate core manufacturing equipment - Google Patents

Laminate core manufacturing equipment Download PDF

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JP5576460B2
JP5576460B2 JP2012256769A JP2012256769A JP5576460B2 JP 5576460 B2 JP5576460 B2 JP 5576460B2 JP 2012256769 A JP2012256769 A JP 2012256769A JP 2012256769 A JP2012256769 A JP 2012256769A JP 5576460 B2 JP5576460 B2 JP 5576460B2
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adhesive
mold
iron core
strip
discharge
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JP2013048555A (en
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好伸 浦
進也 米山
修一 矢口
友和 佐藤
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黒田精工株式会社
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本発明は、回転電機の固定子や回転子に用いられる積層鉄心の製造装置に関し、特に、帯状薄鋼板から所定の形状に打抜き形成された鉄心薄板を積層接着してなる積層鉄心の製造装置に関する。   The present invention relates to an apparatus for manufacturing a laminated core used for a stator or a rotor of a rotating electric machine, and more particularly to an apparatus for manufacturing a laminated core obtained by laminating and bonding an iron core sheet formed by punching a strip-shaped sheet steel plate into a predetermined shape. .

回転電機用の積層鉄心は一般に、電磁鋼板のフープ材(帯状薄鋼板)を素材として、順送り金型装置により製造される。順送り金型装置では、フープ材に対してパイロット穴やスロット部、内径ティース等の打抜き加工が順次行われて鉄心薄板が連続的にかたちづくられ、外形打抜き後の鉄心薄板を所定の枚数積層して固着させることにより積層鉄心が製造される。鉄心薄板の固着には、各鉄心薄板にかしめ用の凹凸を形成しておき、積層時に圧着させてかしめ結合させる積層かしめ法や、積層後にレーザ溶接等によって鉄心薄板を結合する積層溶接法も存在するが、結合部位の磁気特性の劣化等が生じ難いことから、順送り金型装置内でフープ材の表面に接着剤を塗布し、外形打抜きと同時に鉄心薄板を積層して接着させる積層接着法(特許文献1,2参照)が広く採用されている。   A laminated iron core for a rotating electrical machine is generally manufactured by a progressive die apparatus using a hoop material (strip-shaped thin steel plate) of an electromagnetic steel plate as a raw material. In the progressive die device, punch holes such as pilot holes, slots, and inner diameter teeth are sequentially punched into the hoop material to continuously form the core thin plates, and a predetermined number of core thin plates after outer punching are stacked. A laminated iron core is manufactured by fixing them. There are also the laminating caulking methods in which corrugation for caulking is formed on each iron thin plate and crimped and bonded together during lamination, and the laminating welding method in which the core thin plates are joined by laser welding etc. after lamination. However, since it is difficult to cause deterioration of the magnetic characteristics of the bonding site, an adhesive is applied to the surface of the hoop material in the progressive die apparatus, and the core sheet is laminated and bonded simultaneously with the outer punching ( Patent Documents 1 and 2) are widely adopted.

積層接着法に用いる接着剤供給装置としては、例えば、プレス成形ラインの下金型内において上下に摺動自在に保持されたシリンダと、シリンダの先端部に設けられた複数の接着剤転写用ノズルと、シリンダの先端側内部に画成されて、接着液供給通路から所定圧で供給された接着液を貯留する貯留室と、シリンダ内に摺動自在に設けられ、貯留室内の接着液を転写用ノズル方向へ押し出すピストンとを備え、プレス成形機の上金型を下降させてシリンダ先端部を押圧することで、ピストンをシリンダに対して相対的に上昇させて、転写用ノズルから鉄心薄板に向けて接着液が吐出されるようにしたものが存在する(特許文献3参照)。   Examples of the adhesive supply device used in the laminating method include a cylinder that is slidably held vertically in a lower mold of a press molding line, and a plurality of adhesive transfer nozzles provided at the tip of the cylinder. And a storage chamber that stores the adhesive liquid supplied at a predetermined pressure from the adhesive liquid supply passage, and is slidably provided in the cylinder to transfer the adhesive liquid in the storage chamber. A piston that pushes in the direction of the nozzle for use, and lowers the upper die of the press molding machine and presses the tip of the cylinder to raise the piston relative to the cylinder, and from the transfer nozzle to the iron core sheet There is one in which the adhesive liquid is discharged toward the surface (see Patent Document 3).

特開2001−25218号公報JP 2001-25218 A

特開2001−321850号公報JP 2001-321850 A

特開2003−33711号公報JP 2003-33711 A

ところで、上記特許文献3に記載の発明においては、接着液を吐出させるためのシリンダおよびピストンの相対移動がプレス成形機のラム(金型)の上下動によって実現されるため、プレス動作の速度を増大させた場合、転写用ノズルから鉄心薄板に向けて吐出される接着液の速度も増大することとなる。従って、プレス動作速度が一定の限界を超えると、転写用ノズルから接着液が過大に吐出されて接着強度にばらつきが生じる上、接着液が周囲に飛散して金型等に悪影響を及ぼす虞があった。即ち、特許文献1に記載の発明では、鉄心薄板に対する接着液の適切な転写を実現可能な範囲でプレス動作の速度を設定する必要があり、プレス動作の高速化も一定の制約を受けるという課題があった。このような課題は、ラムの上下動によってピストンを直接移動させる構成とした場合も同様に生じ得る。   By the way, in the invention described in Patent Document 3, the relative movement of the cylinder and the piston for discharging the adhesive liquid is realized by the vertical movement of the ram (die) of the press molding machine. When it is increased, the speed of the adhesive liquid discharged from the transfer nozzle toward the iron core thin plate is also increased. Therefore, if the press operation speed exceeds a certain limit, the adhesive liquid is excessively discharged from the transfer nozzle, resulting in variations in the adhesive strength, and the adhesive liquid may scatter around and adversely affect the mold or the like. there were. That is, in the invention described in Patent Document 1, it is necessary to set the speed of the press operation within a range in which appropriate transfer of the adhesive liquid to the iron core thin plate can be realized, and the speed of the press operation is subject to certain restrictions. was there. Such a problem can also occur when the piston is directly moved by the vertical movement of the ram.

本発明は、このような従来技術の課題を鑑みて案出されたものであり、積層接着法を採用した積層鉄心の製造において、打抜きを行う帯状薄鋼板の移送速度によらずに接着剤を安定的に塗布することができ、積層鉄心の生産性の向上に寄与する積層鉄心の製造装置を提供することを目的とする。   The present invention has been devised in view of such problems of the prior art, and in the production of a laminated iron core employing a laminating and bonding method, the adhesive is used regardless of the transfer speed of the strip-shaped steel sheet to be punched. An object of the present invention is to provide an apparatus for manufacturing a laminated core that can be stably applied and contributes to an improvement in productivity of the laminated core.

上記課題を解決するためになされた第1の発明は、帯状薄鋼板(1)から所定の形状に打抜き形成された鉄心薄板(2)を積層接着してなる積層鉄心(19)の製造装置であって、上金型(4)と下金型(11)とを有し、間欠移送される帯状薄鋼板から鉄心薄板を順次打抜く順送り金型手段(3)と、前記下金型内に設けられ、前記帯状薄鋼板の前記鉄心薄板に対応する部位に接着剤を塗布する接着剤塗布手段(12)とを備え、前記接着剤塗布手段は、前記帯状薄鋼板の接着剤塗布面に向けて接着剤を吐出する吐出孔(62)が設けられた接着剤吐出部(31)と、前記接着剤吐出部に対して常時所定圧力で接着剤を供給する接着剤供給部(32)とを有し、前記上金型が降下してストリッパープレート(10)により前記帯状薄鋼板を前記下金型上面(11a)へと当接させた際に、前記吐出部から吐出される前記接着剤を前記帯状薄鋼板に転写させる構成とする。   1st invention made | formed in order to solve the said subject is a manufacturing apparatus of the laminated iron core (19) formed by carrying out the lamination | stacking adhesion | attachment of the iron core thin plate (2) stamped and formed in the predetermined shape from the strip | belt-shaped thin steel plate (1). A progressive die means (3) having an upper die (4) and a lower die (11) and sequentially punching the iron core thin plate from the strip-like thin steel plate that is intermittently transferred; and in the lower die Provided with an adhesive application means (12) for applying an adhesive to a portion corresponding to the iron core thin plate of the strip steel sheet, the adhesive coating means facing the adhesive coating surface of the strip steel sheet An adhesive discharge section (31) provided with a discharge hole (62) for discharging an adhesive, and an adhesive supply section (32) that constantly supplies the adhesive with a predetermined pressure to the adhesive discharge section. The upper die is lowered, and the strip-shaped steel sheet is removed by the stripper plate (10). When is abutted to hear die upper surface (11a), a configuration for transferring the adhesive discharged from the discharge portion to the strip thin steel sheet.

上記課題を解決するためになされた第2の発明として、前記吐出孔の先端は、前記上金型が降下して前記ストリッパープレートにより前記帯状薄鋼板を前記下金型上面へと当接させた際に、前記帯状薄鋼板から離間している構成とすることができる。   As a second invention made to solve the above-mentioned problem, the upper die is lowered at the tip of the discharge hole, and the strip steel plate is brought into contact with the upper surface of the lower die by the stripper plate. In this case, it may be configured to be separated from the strip-shaped thin steel plate.

上記課題を解決するためになされた第3の発明として、前記接着剤塗布手段は、前記接着剤吐出部を前記帯状薄鋼板の接着剤塗布面に対して進退動させる進退駆動部(33)を更に有する構成とすることができる。   As a third invention made to solve the above-mentioned problems, the adhesive application means includes an advance / retreat drive part (33) for moving the adhesive discharge part forward and backward with respect to the adhesive application surface of the strip-shaped thin steel sheet. Furthermore, it can be set as the structure which has.

上記課題を解決するためになされた第4の発明として、前記接着剤塗布手段は、前記吐出孔が複数設けられ、当該複数の吐出孔が連通する接着剤溜まり(63)を有する構成とすることができる。   As a fourth invention made to solve the above-mentioned problems, the adhesive applying means has an adhesive reservoir (63) in which a plurality of the discharge holes are provided and the plurality of discharge holes communicate with each other. Can do.

上記第1の発明によれば、打抜きを行う上下動(プレス上下動)の速度に同期せずに接着剤を安定的に塗布することができ、積層鉄心の生産性の向上に寄与することが可能となる。また、上記第2の発明によれば、帯状薄鋼板に塗布した接着剤が不適切に拡がることを防止し、良好な接着を実現することができる。また、上記第3の発明によれば、簡易な構成により、帯状薄鋼板に対する接着剤塗布処理の実行の有無を切り替えることができる。また、上記第4の発明によれば、複数の吐出孔から定量の接着剤を安定的に吐出させることが可能となる。   According to the first aspect of the invention, the adhesive can be stably applied without being synchronized with the vertical movement (press vertical movement) for punching, which contributes to the improvement of the productivity of the laminated core. It becomes possible. Moreover, according to the said 2nd invention, it can prevent that the adhesive agent apply | coated to the strip | belt-shaped thin steel plate spreads improperly, and can implement | achieve favorable adhesion | attachment. Moreover, according to the said 3rd invention, the presence or absence of execution of the adhesive application | coating process with respect to a strip | belt-shaped thin steel plate can be switched by simple structure. Moreover, according to the said 4th invention, it becomes possible to discharge a fixed quantity of adhesives stably from a some discharge hole.

以下、本発明の実施の形態について図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図1は実施形態に係るストリップレイアウトを示す図であり、図2は打抜き後の鉄心薄板の平面図であり、図3は順送り金型装置の概略構成図である。本実施形態では、ステップモータ用の積層鉄心の製造工程が、前半打抜き工程、接着剤塗布工程、外形打抜き工程、回転積層工程、および加熱工程から構成される場合を例として示す。   FIG. 1 is a view showing a strip layout according to the embodiment, FIG. 2 is a plan view of an iron core thin plate after punching, and FIG. 3 is a schematic configuration diagram of a progressive die apparatus. In this embodiment, the case where the manufacturing process of the laminated iron core for step motors is comprised from the first half punching process, the adhesive agent coating process, the external shape punching process, the rotation lamination process, and a heating process is shown as an example.

図1に示す前半打抜き工程において、フープ材1は、パイロット穴Pの打抜き加工(1)、内径下穴d1および外形溝用小穴hの打抜き加工(2)、スロット部Sの打抜き加工(3)、内径dの打抜き加工(4)、内径溝(ティース)mの打抜き加工(5)を順次施されて、外形を除く鉄心薄板2の基本形状が形成される。このとき、フープ材1は、図3に示す順送り金型装置3内で間欠移送されながら、上下方向に移動する上金型4に取り付けられたパンチ5〜9によって順次打抜き加工が実施される。打抜き加工の際には、上金型4に取り付けられたストリッパープレート10が下降してフープ材1を下金型11の上面11aに当接させる。なお、図3に示す順送り金型装置3における(1)〜(9)は、図1に示す各工程(1)〜(9)との対応を示すものである。   In the first half punching step shown in FIG. 1, the hoop material 1 is formed by punching the pilot hole P (1), punching the inner diameter lower hole d1 and the outer groove small hole h (2), and punching the slot S (3). Then, the punching process (4) of the inner diameter d and the punching process (5) of the inner diameter groove (tooth) m are sequentially performed to form the basic shape of the iron core thin plate 2 excluding the outer shape. At this time, the hoop material 1 is sequentially punched by punches 5 to 9 attached to the upper mold 4 that moves in the vertical direction while being intermittently transferred in the progressive mold apparatus 3 shown in FIG. In the punching process, the stripper plate 10 attached to the upper mold 4 is lowered to bring the hoop material 1 into contact with the upper surface 11 a of the lower mold 11. In addition, (1)-(9) in the progressive die apparatus 3 shown in FIG. 3 shows a response | compatibility with each process (1)-(9) shown in FIG.

前半打抜き工程が完了すると、接着剤塗布工程(6)が実施される。このとき、フープ材1への接着剤の塗布は、順送り金型装置3の下金型11内に設けられた接着剤塗布装置12により実施され、接着剤は、図2に示すスロット部S間の磁極部Jおよびヨーク部Yに相当する複数の転写部位(本実施形態では、各磁極部Jの2箇所E1、ヨーク部Yの8箇所E2)にスポット状に塗布される。なお、後述するように、計量用の鉄心薄板に対しては接着剤の塗布は行われない。   When the first half punching process is completed, an adhesive application process (6) is performed. At this time, the application of the adhesive to the hoop material 1 is performed by the adhesive application device 12 provided in the lower die 11 of the progressive die device 3, and the adhesive is provided between the slot portions S shown in FIG. Are applied to a plurality of transfer portions corresponding to the magnetic pole portion J and the yoke portion Y (in this embodiment, two locations E1 of each magnetic pole portion J and eight locations E2 of the yoke portion Y). As will be described later, the adhesive is not applied to the iron core thin plate for measurement.

接着剤塗布工程が完了すると、外形打抜き工程(7)が実施される。このとき、順送り金型装置3の上金型4に取り付けられた外形打抜きパンチ13によって、外形Dが打抜かれて鉄心薄板2が完成する。   When the adhesive application step is completed, the outer shape punching step (7) is performed. At this time, the outer shape D is punched by the outer shape punch 13 attached to the upper die 4 of the progressive die device 3 to complete the iron core sheet 2.

外形打抜き工程により鉄心薄板2が得られると、回転積層工程(8)が実施される。このとき、図3に示すように、既に打抜きが完了して回転ダイ14内に積層されている鉄心薄板群15上に積層され、その後は、回転ダイ14下部のスクイズリング16内へと順次押し込まれる。ここで、回転駆動装置17は、新たに打抜かれた鉄心薄板2が鉄心薄板群15上に積層される前に、鉄心薄板群15を保持する回転ダイ14を所定の角度(例えば、90°)回転させることができる。これにより、各鉄心薄板2の回転位置を変化させながら積層させ、鉄心薄板2に生じ得る微少な板厚偏差による影響を解消し、製品(積層鉄心)の積み厚を精度良く管理することができる。   When the iron core thin plate 2 is obtained by the outer shape punching step, the rotating lamination step (8) is performed. At this time, as shown in FIG. 3, the punching has already been completed and laminated on the core thin plate group 15 laminated in the rotary die 14, and thereafter, it is sequentially pushed into the squeeze ring 16 below the rotary die 14. It is. Here, before the newly punched core sheet 2 is stacked on the core sheet group 15, the rotary drive device 17 rotates the rotary die 14 holding the core sheet group 15 at a predetermined angle (for example, 90 °). Can be rotated. Thereby, it can laminate | stack while changing the rotation position of each iron core thin plate 2, can eliminate the influence by the small thickness deviation which may arise in the iron core thin plate 2, and can manage the stack thickness of a product (laminated core) with high precision. .

回転積層工程が完了すると、加熱工程(9)が実施される。図3に示すように、スクイズリング16下部には、第1加熱装置18が設けられており、鉄心薄板群15は下方に移動しながら加熱される。これにより、各鉄心薄板2間の接着剤を加熱により硬化させて接着強度を高めることができる。加熱装置としては、例えば、鉄心薄板群15に対して熱風を吹き付けるヒータ装置を用いることができる。第1加熱装置18による加熱の後、鉄心薄板群15は各計量用の鉄心薄板の位置で分離され、所定枚数の鉄心薄板2からなる積層鉄心19が形成される。この積層鉄心19は、下金型11の下方に配置されたベルトコンベア20上に載置され、次工程(図示せず)に搬送される。ベルトコンベア20の搬送経路の途中には、第2加熱装置21が設けられており、搬送中の積層鉄心19が再加熱される。これにより、各鉄心薄板間の接着強度を一層高めることができる。   When the rotating lamination process is completed, the heating process (9) is performed. As shown in FIG. 3, the 1st heating apparatus 18 is provided in the lower part of the squeeze ring 16, and the iron core thin plate group 15 is heated, moving below. Thereby, the adhesive between each iron core thin plate 2 can be hardened by heating, and adhesive strength can be raised. As the heating device, for example, a heater device that blows hot air against the core thin plate group 15 can be used. After the heating by the first heating device 18, the iron core thin plate group 15 is separated at the position of each iron core thin plate for measurement, and a laminated iron core 19 composed of a predetermined number of iron core thin plates 2 is formed. The laminated iron core 19 is placed on a belt conveyor 20 disposed below the lower mold 11 and conveyed to the next process (not shown). A second heating device 21 is provided in the middle of the conveyance path of the belt conveyor 20, and the laminated core 19 being conveyed is reheated. Thereby, the adhesive strength between each iron core thin plate can further be raised.

次に、上記順送り金型装置における接着剤塗布装置の構成およびその接着剤塗布工程の詳細について説明する。図4は図1の接着剤塗布装置周辺を示すA部のIV−IV断面図であり、図5は図4のB部の拡大図であり、図6は図4の接着剤供給ノズルの上面図であり、図7は図4において接着剤の塗布を行わない場合の接着剤塗布装置の状態を示す図である。   Next, the configuration of the adhesive application device in the progressive die apparatus and the details of the adhesive application process will be described. 4 is an IV-IV sectional view of part A showing the periphery of the adhesive application device of FIG. 1, FIG. 5 is an enlarged view of part B of FIG. 4, and FIG. 6 is an upper surface of the adhesive supply nozzle of FIG. FIG. 7 is a diagram showing a state of the adhesive application device when the adhesive is not applied in FIG.

接着剤塗布装置12は、フープ材1の接着剤塗布面(下面)に向けて適量の接着剤を吐出する接着剤吐出部31と、接着剤吐出部31に対して常時所定圧力で接着剤を供給する接着剤供給部32と、フープ材1の接着剤塗布面に対して略垂直な方向に接着剤吐出部31を進退動させる進退駆動部33とを有する。   The adhesive application device 12 includes an adhesive discharge unit 31 that discharges an appropriate amount of adhesive toward the adhesive application surface (lower surface) of the hoop material 1, and the adhesive discharge unit 31 always applies adhesive to the adhesive discharge unit 31 at a predetermined pressure. It has an adhesive supply unit 32 for supplying, and an advance / retreat drive unit 33 for moving the adhesive discharge unit 31 in a direction substantially perpendicular to the adhesive application surface of the hoop material 1.

接着剤吐出部31は、ベース体41と、ベース体41の上面にねじ42で固定された接着剤導入ブロック43と、この接着剤導入ブロック42の上部を収容するノズルブロック44と、これらのブロック43,44を外囲するように配置され、ベース体41の上面にねじ45で固定された受け台46とを備える。   The adhesive discharge unit 31 includes a base body 41, an adhesive introduction block 43 fixed to the upper surface of the base body 41 with screws 42, a nozzle block 44 that accommodates the upper portion of the adhesive introduction block 42, and these blocks. 43 and 44, and a pedestal 46 fixed to the upper surface of the base body 41 with a screw 45.

接着剤導入ブロック43は、略円柱状をなし、その内部に接着剤の導入路として外周面43aと上面43bとを結ぶ貫通孔51が穿設されるとともに、その下部にフランジ部52が設けられている。   The adhesive introduction block 43 has a substantially cylindrical shape, and a through hole 51 connecting the outer peripheral surface 43a and the upper surface 43b is formed as an adhesive introduction path therein, and a flange portion 52 is provided at a lower portion thereof. ing.

ノズルブロック44は、略円柱状をなし、その下面44aに接着剤導入ブロック43を摺動自在に収容する凹部61aが設けられるとともに、その上面44bには接着剤が凸状に吐出される複数の吐出孔62が設けられている。図6に示すように、本実施形態における吐出孔62は、図2に示した接着剤の転写部位E1,E2に対応する位置にそれぞれ設けられているが、ここに示したものに限らず、吐出孔62の形状、サイズ、数量、および配置等は適宜変更することができる。接着剤導入ブロック43がノズルブロック44に収容された状態で、凹部61と接着剤導入ブロック43の上面43bとで画成される空隙は接着剤溜まり63を構成し、貫通孔51を介して供給された接着剤が貯留される。これにより、各吐出孔62から定量の接着剤を安定的に吐出させることが可能となる。また、ノズルブロック44の下部に設けられたフランジ部64と接着剤導入ブロック43のフランジ部52との間には、ばね65が張設されている。   The nozzle block 44 has a substantially cylindrical shape, and a lower surface 44a is provided with a recess 61a that slidably accommodates the adhesive introduction block 43, and a plurality of adhesives are ejected in a convex shape on the upper surface 44b. A discharge hole 62 is provided. As shown in FIG. 6, the discharge holes 62 in the present embodiment are provided at positions corresponding to the adhesive transfer sites E1 and E2 shown in FIG. 2, but are not limited to those shown here. The shape, size, quantity, arrangement, and the like of the discharge holes 62 can be changed as appropriate. In a state where the adhesive introduction block 43 is accommodated in the nozzle block 44, the gap defined by the recess 61 and the upper surface 43 b of the adhesive introduction block 43 constitutes an adhesive reservoir 63 and is supplied through the through hole 51. The applied adhesive is stored. Thereby, it is possible to stably discharge a predetermined amount of adhesive from each discharge hole 62. A spring 65 is stretched between the flange portion 64 provided at the lower portion of the nozzle block 44 and the flange portion 52 of the adhesive introduction block 43.

受け台46は、略円筒状をなし、その内周側の上部が縮径されて段差部46aが形成されている。この段差部46aとノズルブロック44のフランジ部64とが係合することで、ノズルブロック44の上方(即ち、下金型11の上面11aから突出する方向)への移動が規制される。受け台46の下部は、下金型11内に固定された下型71にベース体41とともに収容される。また、受け台46の外周側の上部が縮径されて段差部46bが形成されており、この段差部46bと押さえ部材72とが係合することで、接着剤吐出部31の上方への移動が規制される。また、受け台46の上面46cと押さえ部材72の上端面は、下金型11の上面11aと同一面に設定配置されている。   The cradle 46 has a substantially cylindrical shape, and an upper portion on the inner peripheral side thereof is reduced in diameter to form a stepped portion 46a. Engagement between the stepped portion 46a and the flange portion 64 of the nozzle block 44 restricts the upward movement of the nozzle block 44 (that is, the direction protruding from the upper surface 11a of the lower mold 11). The lower part of the cradle 46 is housed together with the base body 41 in a lower mold 71 fixed in the lower mold 11. Further, the upper part on the outer peripheral side of the cradle 46 is reduced in diameter to form a stepped portion 46b, and when the stepped portion 46b and the pressing member 72 are engaged, the adhesive discharge unit 31 is moved upward. Is regulated. Further, the upper surface 46 c of the cradle 46 and the upper end surface of the pressing member 72 are set and arranged on the same plane as the upper surface 11 a of the lower mold 11.

ここで、図5に示すように、ノズルブロック44の上面44b(即ち、吐出孔62の先端)は、受け台46の上面46cよりも僅かに低くなるように配置され、これにより、フープ材1とノズルブロック44の上面44bとの間には一定の間隙αが形成される。従って、上金型4が降下してストリッパープレート10でフープ材を下金型上面へ当接させたとき、接着剤吐出孔62を有するノズルブロック44上面との間に間隙αが構成される。また、上述のように、接着剤導入ブロック43とノズルブロック44の間にばね65が張設された構成とすることで、ノズルブロック44の上面44bの必要な位置精度(間隙α)を容易に維持できる。また、ノズルブロック44の組み付けにねじ等の締結手段(およびその配置スペース)が不要となり、また、組み付け作業が容易となるという利点もある。   Here, as shown in FIG. 5, the upper surface 44 b of the nozzle block 44 (that is, the tip of the discharge hole 62) is arranged to be slightly lower than the upper surface 46 c of the cradle 46. A constant gap α is formed between the nozzle block 44 and the upper surface 44 b of the nozzle block 44. Therefore, when the upper mold 4 is lowered and the hoop material is brought into contact with the upper surface of the lower mold by the stripper plate 10, a gap α is formed between the upper surface of the nozzle block 44 having the adhesive discharge holes 62. Further, as described above, the spring 65 is stretched between the adhesive introduction block 43 and the nozzle block 44, so that the required positional accuracy (gap α) of the upper surface 44b of the nozzle block 44 can be easily achieved. Can be maintained. Further, there is an advantage that a fastening means such as a screw (and its arrangement space) is not required for assembling the nozzle block 44, and the assembling work is facilitated.

接着剤供給部32は、その接着剤タンク(図示せず)内の接着剤を周知の方法(例えば、圧縮空気等)により加圧する加圧装置81からなり、加圧された接着剤は、その加圧に応じた所定の供給速度で管路82を介して接着剤吐出部31に送られる。管路82は、接着剤用のチューブ82aと、下金型11内(押さえ部材72、受け台46等を含む)に形成された連通路82bとにより構成され、接着剤導入ブロック43の貫通孔51に接続される。供給された接着剤は、接着剤吐出部31の接着剤溜まり63に貯留され、最終的に吐出孔62から吐出される。   The adhesive supply unit 32 includes a pressurizing device 81 that pressurizes the adhesive in the adhesive tank (not shown) by a well-known method (for example, compressed air). It is sent to the adhesive discharge part 31 through the pipe line 82 at a predetermined supply speed corresponding to the pressurization. The pipe 82 is constituted by an adhesive tube 82 a and a communication passage 82 b formed in the lower mold 11 (including the pressing member 72, the cradle 46, etc.), and the through hole of the adhesive introduction block 43. 51. The supplied adhesive is stored in the adhesive reservoir 63 of the adhesive discharge part 31 and finally discharged from the discharge hole 62.

進退駆動部33は、ベース体41と係合して接着剤吐出部31を進退動させる駆動部材91と、駆動部材91をその長手方向に移動させるための動力を供給する駆動装置92とを備える。駆動部材91は、その上部に直動形の鋸歯状のカム面91aが形成されている。カム面91aは、ベース体41の下面に設けられた同様の鋸歯状のカム面41aとともにカム機構を構成し、接着剤吐出部31の進退動を可能とする。図4では、カム面91aおよびカム面41aが非係合状態(互いに噛合していない状態)にある場合を示しており、このとき、接着剤吐出部31は上限位置にあって接着剤の塗布処理が可能な状態にある。駆動装置92としては、駆動部材91の直線運動を実現する周知のアクチュエータ(例えば、流体シリンダ、ソレノイド等)を用いることができる。なお、カム機構の構成は適宜変更することができる。   The advance / retreat drive unit 33 includes a drive member 91 that engages with the base body 41 to move the adhesive discharge unit 31 forward and backward, and a drive device 92 that supplies power for moving the drive member 91 in the longitudinal direction thereof. . The drive member 91 is formed with a direct-acting sawtooth cam surface 91a on the top thereof. The cam surface 91a constitutes a cam mechanism together with a similar serrated cam surface 41a provided on the lower surface of the base body 41, and allows the adhesive discharge section 31 to move forward and backward. FIG. 4 shows a case where the cam surface 91a and the cam surface 41a are in a non-engaged state (a state where they are not meshed with each other). At this time, the adhesive discharge portion 31 is at the upper limit position and the adhesive is applied. It can be processed. As the driving device 92, a known actuator (for example, a fluid cylinder, a solenoid, etc.) that realizes a linear motion of the driving member 91 can be used. The configuration of the cam mechanism can be changed as appropriate.

次に、上記構成の接着剤塗布装置12による接着剤塗布工程の概要について説明する。接着剤の塗布処理を実行する場合(即ち、フープ材1における対象部位が計量用の鉄心薄板に対応しない場合)、前半打抜き工程が完了したフープ材1の移送動作が完了すると、次のプレス動作によりストリッパープレート10が下降し、フープ材1を下金型11の上面11aに当接させる。このとき、接着剤溜まり63に貯留された接着剤は、図5に示したように、加圧装置81によって所定の圧力に加圧されており、接着剤吐出部31は開口しているので、開口の面積と加圧力に応じた速度でノズルブロック44の吐出孔62から前記間隙αの上方つまりフープ材下面方向へ盛り上がって形成され伸びていく。これによって上金型の上下動により、上金型が降下してストリッパープレート10でフープ材を下金型上面へ当接するときと、接着剤が吐出口62から盛り上がっていくタイミングを合わせることで、フープ材1下面の所定位置へスポット状に接着剤を転写する(図2のE1、E2参照)。その後、接着剤が塗布されたフープ材は次の外形打抜き積層工程へ搬送される。なお、接着剤が良好に転写されるためには、上金型の上下動速度(プレス速度)と接着剤の転写面積によって接着剤供給部における加圧力を制御設定することで最適条件を見出すことが可能である。   Next, an outline of the adhesive application process by the adhesive application device 12 having the above-described configuration will be described. When the adhesive application process is executed (that is, when the target portion of the hoop material 1 does not correspond to the iron core thin plate for measurement), when the transfer operation of the hoop material 1 in which the first half punching process is completed is completed, the next press operation is performed. As a result, the stripper plate 10 is lowered to bring the hoop material 1 into contact with the upper surface 11 a of the lower mold 11. At this time, as shown in FIG. 5, the adhesive stored in the adhesive reservoir 63 is pressurized to a predetermined pressure by the pressurizing device 81, and the adhesive discharge part 31 is open. From the discharge hole 62 of the nozzle block 44 at a speed corresponding to the area of the opening and the applied pressure, the nozzle block 44 is formed and extended above the gap α, that is, toward the lower surface of the hoop material. By matching the timing when the upper mold is lowered due to the vertical movement of the upper mold and the hoop material is brought into contact with the upper surface of the lower mold by the stripper plate 10 and the timing at which the adhesive rises from the discharge port 62, The adhesive is transferred in a spot shape to a predetermined position on the lower surface of the hoop material 1 (see E1 and E2 in FIG. 2). Thereafter, the hoop material to which the adhesive is applied is conveyed to the next outer punching and laminating step. In order to transfer the adhesive satisfactorily, find the optimum condition by controlling the pressurizing force in the adhesive supply section according to the vertical movement speed (press speed) of the upper mold and the transfer area of the adhesive. Is possible.

このように、打抜きを行う上金型の上下動速度(プレス速度)に同期せずに接着剤を安定的に塗布することができ、積層鉄心の生産性向上に寄与することが可能となる。この場合、接着剤の供給は、プレス動作とは無関係であるので、接着剤の塗布工程がプレス動作の影響を受けることもない。また間隙αを、設けて接着剤を吐出口から吐出させる構成とすることで、フープ材の下面がノズルブロック44の上面44bすなわち吐出孔62先端へ密着して接着剤が不適切に拡がることを防止し、良好なスポット形状を維持できる。   In this way, the adhesive can be stably applied without synchronizing with the vertical movement speed (pressing speed) of the upper die for punching, and this can contribute to the improvement of the productivity of the laminated core. In this case, since the supply of the adhesive is not related to the press operation, the adhesive application process is not affected by the press operation. Further, the gap α is provided so that the adhesive is discharged from the discharge port, whereby the lower surface of the hoop material is in close contact with the upper surface 44b of the nozzle block 44, that is, the tip of the discharge hole 62, and the adhesive spreads inappropriately. And maintain a good spot shape.

一方、接着剤の塗布処理を実行しない場合(即ち、フープ材1における対象部位が計量用の鉄心薄板に対応する場合)、フープ材1が下金型11の上面11aに当接する前に、駆動装置92が起動して駆動部材91を図7の矢印方向に移動させる。これにより、駆動部材91のカム面91aとベース体41のカム面41aとが係合状態(互いに噛合した状態)となって、接着剤吐出部31が図4に示す上限位置から図7に示す下限位置まで下降する。その結果、フープ材1とノズルブロック44の上面44bとの間の間隙αが拡がり、接着剤をフープ材1の下面に転写させないようにすることを容易に実現できる。   On the other hand, when the adhesive application process is not executed (that is, when the target portion of the hoop material 1 corresponds to a measuring iron core thin plate), the hoop material 1 is driven before contacting the upper surface 11a of the lower mold 11. The device 92 is activated to move the drive member 91 in the direction of the arrow in FIG. As a result, the cam surface 91a of the drive member 91 and the cam surface 41a of the base body 41 are in an engaged state (a state in which they are engaged with each other), and the adhesive discharge portion 31 is shown in FIG. 7 from the upper limit position shown in FIG. Lower to the lower limit position. As a result, the gap α between the hoop material 1 and the upper surface 44b of the nozzle block 44 is widened, so that it is possible to easily prevent the adhesive from being transferred to the lower surface of the hoop material 1.

本発明を特定の実施形態に基づいて詳細に説明したが、これらの実施形態はあくまでも例示であって本発明はこれらの実施形態によって限定されるものではない。例えば、本発明に係る積層鉄心の製造装置は、上述のステップモータに限らず、通常のモータコア用の積層鉄心にも適用可能である。   Although the present invention has been described in detail based on specific embodiments, these embodiments are merely examples, and the present invention is not limited to these embodiments. For example, the laminated core manufacturing apparatus according to the present invention can be applied not only to the above-described step motor but also to a laminated core for a normal motor core.

本発明の実施形態に係るストリップレイアウトを示す図The figure which shows the strip layout which concerns on embodiment of this invention 打抜き後の鉄心薄板の平面図Plan view of iron core sheet after punching 順送り金型装置の概略構成図Schematic configuration diagram of progressive mold device 図3における接着剤塗布装置周辺を示すA部のIV−IV断面図IV-IV sectional view of part A showing the periphery of the adhesive application device in FIG. 図4のB部の拡大図Enlarged view of part B in FIG. 接着剤供給ノズルの上面図Top view of adhesive supply nozzle 接着剤の塗布を行わない場合の接着剤塗布装置の状態を示す図The figure which shows the state of the adhesive applicator when not applying adhesive

1 フープ材
2 鉄心薄板
3 順送り金型装置
4 上金型
10 ストリッパープレート
11 下金型
11a 下金型の上面
12 接着剤塗布装置
15 鉄心薄板群
16 スクイズリング
17 回転駆動装置
18 第1加熱装置
19 積層鉄心
21 第2加熱装置
31 接着剤吐出部
32 接着剤供給部
33 進退駆動部
43 接着剤導入ブロック
44 ノズルブロック
46 受け台
46c 受け台上面
62 吐出孔
63 接着剤溜まり
72 押さえ部材
81 加圧装置
91 駆動部材
92 駆動装置
DESCRIPTION OF SYMBOLS 1 Hoop material 2 Iron core thin plate 3 Progressive die apparatus 4 Upper mold 10 Stripper plate 11 Lower mold 11a Upper mold upper surface 12 Adhesive application device 15 Iron thin plate group 16 Squeeze ring 17 Rotation drive device 18 First heating device 19 Laminated iron core 21 Second heating device 31 Adhesive discharge part 32 Adhesive supply part 33 Advance / retreat drive part 43 Adhesive introduction block 44 Nozzle block 46 Receiving base 46c Receiving upper surface 62 Discharge hole 63 Adhesive reservoir 72 Holding member 81 Pressurizing device 91 Drive member 92 Drive device

Claims (3)

  1. 帯状薄鋼板から所定の形状に打抜き形成された鉄心薄板を積層接着してなる積層鉄心の製造装置であって、
    上金型と下金型とを有し、間欠移送される帯状薄鋼板から鉄心薄板を順次打抜く順送り金型手段と、
    前記下金型内に設けられ、前記帯状薄鋼板の前記鉄心薄板に対応する部位に接着剤を塗布する接着剤塗布手段と
    を備え、
    前記接着剤塗布手段は、前記帯状薄鋼板の接着剤塗布面に向けて接着剤を吐出する複数の吐出孔及び当該複数の吐出孔が連通する接着剤溜まりが設けられた接着剤吐出部と、前記接着剤吐出部に対して所定の圧力で接着剤を供給することにより、前記接着剤溜まりを介して前記複数の吐出孔から接着剤を吐出させる接着剤供給部と、前記接着剤吐出部を前記帯状薄鋼板の接着剤塗布面に対して進退動させる進退駆動部とを有し、前記上金型が降下して前記帯状薄鋼板を前記下金型上面へと当接させた際に、前記吐出部から吐出される前記接着剤を前記帯状薄鋼板に転写させることを特徴とする積層鉄心の製造装置。
    An apparatus for manufacturing a laminated iron core obtained by laminating and bonding an iron core thin plate formed by punching into a predetermined shape from a strip-shaped thin steel sheet,
    A progressive mold means for sequentially punching an iron core sheet from a strip-shaped sheet steel sheet having an upper mold and a lower mold, and intermittently transferred;
    An adhesive application means for applying an adhesive to a portion corresponding to the iron core thin plate of the strip-shaped thin steel plate provided in the lower mold,
    The adhesive application means includes an adhesive discharge portion provided with a plurality of discharge holes for discharging the adhesive toward the adhesive application surface of the strip-shaped thin steel sheet, and an adhesive reservoir in which the plurality of discharge holes communicate with each other; An adhesive supply unit that discharges an adhesive from the plurality of discharge holes via the adhesive reservoir by supplying an adhesive with a predetermined pressure to the adhesive discharge unit, and an adhesive discharge unit An advancing and retreating drive part that moves forward and backward with respect to the adhesive application surface of the strip-shaped thin steel sheet, and when the upper mold is lowered and the strip-shaped thin steel sheet is brought into contact with the upper surface of the lower mold, An apparatus for manufacturing a laminated iron core, wherein the adhesive discharged from the discharge unit is transferred to the strip-shaped steel sheet.
  2. 前記吐出孔の先端は、前記上金型が降下して前記帯状薄鋼板を前記下金型上面へと当接させた際に、前記帯状薄鋼板から離間していることを特徴とする請求項1に記載の積層鉄心の製造装置。   The tip of the discharge hole is separated from the strip-shaped thin steel plate when the upper mold is lowered and the strip-shaped thin steel plate is brought into contact with the upper surface of the lower mold. The manufacturing apparatus of the laminated iron core of 1.
  3. 前記接着剤吐出部は、その進退動の上限位置において前記接着剤の塗布処理が可能な状態にあることを特徴とする請求項2に記載の積層鉄心の製造装置。The apparatus for manufacturing a laminated iron core according to claim 2, wherein the adhesive discharge part is in a state in which the adhesive can be applied at an upper limit position of its forward / backward movement.
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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001025218A (en) * 1999-07-09 2001-01-26 Mitsui High Tec Inc Laminated core producing die unit
JP2001045717A (en) * 1999-07-28 2001-02-16 Fukae Kosakusho:Kk Apparatus and method for laminating laminated iron core
JP3822020B2 (en) * 2000-05-16 2006-09-13 株式会社コアテック Laminated core manufacturing equipment
JP2003033711A (en) * 2001-07-25 2003-02-04 Koatekku:Kk Device and method for painting adhesive

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KR20150110551A (en) 2013-01-23 2015-10-02 혹꼬우 가가꾸 고오교오 가부시끼가이샤 Reaction catalyst for cross coupling and method for manufacturing aromatic compound
JP2014197981A (en) * 2014-07-02 2014-10-16 黒田精工株式会社 Manufacturing device for laminated core
WO2019168022A1 (en) 2018-03-02 2019-09-06 田中精密工業株式会社 Adhesive coating device and adhesive coating method

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