WO2003100802A1 - Tab terminal for electrolytic capacitor, and method and equipment for manufacturing the tab terminal - Google Patents

Tab terminal for electrolytic capacitor, and method and equipment for manufacturing the tab terminal Download PDF

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Publication number
WO2003100802A1
WO2003100802A1 PCT/JP2003/005780 JP0305780W WO03100802A1 WO 2003100802 A1 WO2003100802 A1 WO 2003100802A1 JP 0305780 W JP0305780 W JP 0305780W WO 03100802 A1 WO03100802 A1 WO 03100802A1
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WO
WIPO (PCT)
Prior art keywords
cutting
punch
edge
aluminum head
manufacturing
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Application number
PCT/JP2003/005780
Other languages
French (fr)
Japanese (ja)
Inventor
Kiyoharu Taira
Hiroyuki Fujinaka
Shuhei Yoshizawa
Futoshi Ishii
Original Assignee
Kohoku Kogyo Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kohoku Kogyo Co., Ltd. filed Critical Kohoku Kogyo Co., Ltd.
Priority to KR1020047017841A priority Critical patent/KR100608275B1/en
Priority to AU2003235899A priority patent/AU2003235899A1/en
Publication of WO2003100802A1 publication Critical patent/WO2003100802A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/008—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • H01G13/006—Apparatus or processes for applying terminals

Definitions

  • the present invention relates to a lead wire of an electrolytic capacitor called a terminal, a method of manufacturing the same, and an apparatus for manufacturing the same.
  • the tab terminal has a configuration in which the lead wire a and the aluminum head b are butt-welded in a straight line, and the aluminum head is formed by punching an aluminum wire with a circular cross section using a punch. It has a flattened shape.
  • the pressed part The part protruding from the punch is cut off with a cutting blade to form a strip. Therefore, cutting burrs X are likely to be generated at the periphery of the pressed portion f.
  • the electrolytic capacitor is made by attaching aluminum foil to this pressed part f and winding it into a roll. If this burr X touches the aluminum foil (not shown), it will damage it and cause the quality of the electrolytic capacitor to deteriorate.
  • Jitsuhei 6—3 6 5 7 4 using the upper and lower two cutting blades, first lower the upper cutting blade, cut the press knitting part to half thickness, and then raise the lower cutting blade. A method of cutting the remaining half of the thickness is disclosed. According to this method, since the lower cutting edge rises beyond the bottom dead center of the upper cutting edge, cutting burrs hardly occur.
  • the punch 21 descends further and stops when the distance from the cradle 22 is H2. In the slight descending process from H1 to H2, the aluminum wire caught between the punch 21 and the pedestal 22 protrudes further, and as shown by the arrow in Fig. Press against the side.
  • the upper and lower cutting blades have different thicknesses of aluminum when cutting. As shown in FIG. 2, there is also a problem that the round shape of the periphery of the pressed portion is unlikely to be the same.
  • the present invention eliminates cutting burrs and return burrs that may damage the aluminum foil of an electrolytic capacitor and degrades its performance, and forms an arc-shaped cross-section at the four corners of the pressed part,
  • An object of the present invention is to manufacture a tab terminal in which a pressed portion has a uniform thickness.
  • the present invention provides an apparatus for manufacturing a terminal for an electrolytic capacitor for an electrolytic capacitor, comprising: Cut notch for engraving the cut line in the protruding part of the head A cutting blade that moves in a direction opposite to the forward-moving cutting blade and cuts a protruding portion of the aluminum head along the cutting line, and the cutting blade for cutting. Has a notch formed at the edge thereof.
  • the punch for pressing the aluminum head is provided with an edge at a periphery thereof so as to be higher than a punch surface, and the inside of the page is formed in a round shape.
  • a cutting edge reversing position adjusting mechanism for freely adjusting the reversing position of the cutting edge for cutting.
  • a method of manufacturing a tab terminal for an electrolytic capacitor comprising: forming an aluminum head in a flat shape so as to have a predetermined thickness by using an aluminum head pressing punch; The part protruding from the pressing punch is partially cut by a cutting blade provided with a notch at the edge, and a cutting notch provided at a position opposed to the cutting blade. Cutting off the protruding portion in which a cut is partially formed by a blade from the opposite side of the cut portion.
  • a gap is provided between the protruding portion and the pressed aluminum head.
  • an edge is provided on a peripheral edge of the punch for pressing the aluminum head, and the edge portion is formed in a round shape.
  • a tab terminal for an electrolytic capacitor according to another aspect of the present invention is obtained by using the manufacturing method described above, wherein a thickness of a pressing portion of an aluminum head is uniform, and a pressing portion cross section is provided. Are formed in a round shape.
  • the radius of the round shape is in the range of 0.03 to 0.50, where the thickness of the pressing portion is 1. Further, it is more preferable that the surface of the pressed portion is smooth and the height thereof does not exceed 0.05 mm even when the projection is formed.
  • FIG. 1 is an overall front view of an evening terminal manufacturing apparatus embodying the present invention.
  • FIG. 2 is an enlarged view showing the cutting device of FIG. 1 in the order of steps.
  • FIG. 3 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and the right half of the cutting device is omitted.
  • FIG. 4 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and omits the right half of the cutting device.
  • FIG. 5 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and omits the right half of the cutting device.
  • FIG. 6 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and omits a right half of the cutting device.
  • FIG. 7 shows the main part of FIG. 4 in a further enlarged order in the order of steps.
  • FIG. 8 shows the main part of FIG. 4 in a further enlarged order in the order of steps.
  • FIG. 9 shows the main part of FIG. 4 in a further enlarged order in the order of steps.
  • FIG. 10 is an enlarged sectional view of a punch embodying the present invention.
  • FIG. 11 is an enlarged view of a main part of the conventional example.
  • FIG. 12 is an enlarged cross-sectional view of a pressed portion of a sunset terminal manufactured by a conventional apparatus.
  • FIG. 13 is an overall perspective view of the evening terminal of FIG.
  • FIG. 14 is an enlarged cross-sectional view of the pressed portion of the tab terminal according to the present invention.
  • FIG. 1 shows an overall front view of the device of the present invention.
  • the cradle 1 is fixed to the foundation 2, and a punch 3 is provided above the pedestal 2, and they are arranged so as to oppose each other.
  • a cutting device 4 is installed between the receiving table 1 and the punch 3, and the elevating table 5 is slidably inserted into a vertical support 6 erected on the foundation 2.
  • the punch 3 is passed through a vertical through-hole 7 provided in the lift 5.
  • the punch elevating table 8 is slidably communicated with the column 6 like the elevating table 5.
  • the lift rod 9 has a lower end connected to the punch lift 8 and an upper end connected to a drive source (not shown). When the lifting rod 9 moves up and down, the punch 3 and the punch lifting table 8 move up and down together.
  • the cam 10 is in contact with the roll 12 of the screw rod 11 whose length can be adjusted, and the screw rod 11 is connected to the elevating platform 5 to form a cutting edge reversing position adjusting mechanism. Have been.
  • the cutting device 4 has cutting blades 13 and cutting blades 14 that are arranged so that the cutting blades are close to each other on the left and right sides of the punch 3 and the cradle 1. It is integrally assembled so that
  • the cutting edge 13 has a notch p at its edge.
  • the cutting blade 13 cuts a part of the aluminum head b protruding from the punch 3, and cuts a cut line in the protruding portion (see FIG. Four ) .
  • the cutting device 4 is turned upside down and the cutting blade 13 moves upward, and at the same time, the lower cutting blade 14 moves above the tip of the punch 3 to remove the protruding part of the aluminum head b. Cut away from the score line and resect (Fig. 5). The cut aluminum scum is removed by blowing it off with a blower.
  • the mutual timing and stroke of the punch 3 and the cutting device 4 can be controlled by adjusting the length of the screw rod 11.
  • the positional relationship between the punch 3 and the cutting edge 13 with the evening adjustment and stroke adjusted is shown in Figs.
  • Punch 3 descends and the aluminum head is crushed to a specified thickness. Part of aluminum head b protrudes from punch 3. Next, the cutting edge 13 is lowered, and the state shown in FIGS. 7 to 8 is obtained. .
  • the cutting blade 13 for cutting hits the protruding portion and pushes the protruding portion down as shown in FIG. Due to this depression, the vicinity of the boundary between the portion sandwiched between the punch 3 and the cradle 1 and the protruding portion is pulled.
  • the punch 3 is lowered from the position shown in FIG. 7 by the depth of the notch p of the edge, the protruding portion starts to be cut off by the edge at the end of the notch p.
  • the edge of the punch 3 is raised above the punch surface, and the inside of the edge is formed into a radius 15 to form the aluminum head as shown in FIG. It is possible to obtain an evening terminal having a flattened portion having a uniform thickness and four corners r of the cross section having the same round shape.
  • Such aluminum head tab terminals have no directivity between the front and back, and do not damage ultra-thin aluminum foil, so that a high-quality electrolytic capacitor can be obtained.
  • the radius of the four corners r is preferably in the range of 0.03 to 0.05 when the radius of the radius is 1 for the thickness of the pressed portion. If it is less than 0.003, the four corners r may be angular and the aluminum foil may be damaged. May be damaged. Further, it is preferable that the surface of the pressed portion is smooth, and it is necessary that the height of the protrusion is not more than 0.05 mm even when the protrusion is formed.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

Tab terminal manufacturing equipment capable of providing a tab terminal having an aluminum depressed part free from burrs, uniform in thickness, and round at four corners, comprising a slitting blade for nicking a slit line at the extruded part of a depressed aluminum head part by inversing the blade from a forward movement to a backward movement at the abutted position thereof on a punch for depressing the aluminum head part and a removing blade for cutting off the extruded part of the aluminum head part along the slit line by moving in the direction reverse to that of the forward moving slitting blade, wherein a notch part is formed in the slitting cutting blade at the edge portion.

Description

明 細 書 電解コンデンサ用タブ端子、 その製造方法、 およびその製造装置 技術分野  Description Tab terminal for electrolytic capacitor, method for manufacturing the same, and manufacturing apparatus for the same
本発明は、 夕プ端子と呼ばれる電解コンデンサの引き出し線、 その製造方法、 その製造装置に関する。 背景技術  The present invention relates to a lead wire of an electrolytic capacitor called a terminal, a method of manufacturing the same, and an apparatus for manufacturing the same. Background art
タブ端子は、 図 1 3に示すように、 リード線 aとアルミ頭部 bとを一直線状に 突き合せて溶接した構成で、 該アルミ頭部は、 断面が円形のアルミ線材をパンチ を用いて扁平な形に圧扁した形状を有する。  As shown in Fig. 13, the tab terminal has a configuration in which the lead wire a and the aluminum head b are butt-welded in a straight line, and the aluminum head is formed by punching an aluminum wire with a circular cross section using a punch. It has a flattened shape.
この圧扁部: Πま、 パンチよりはみ出た部分を切刃で切除することにより、 短冊 状に形成される。 したがって、 圧扁部 fの周縁に切断バリ Xが発生しやすい。 電解コンデンサは、 この圧扁部 f にアルミ箔を取り付けロール状に卷回したも のである。 このバリ Xがアルミ箔 （図示しない） に触れると傷を付け電解コンデ ンサの品質低下の原因になる。  The pressed part: The part protruding from the punch is cut off with a cutting blade to form a strip. Therefore, cutting burrs X are likely to be generated at the periphery of the pressed portion f. The electrolytic capacitor is made by attaching aluminum foil to this pressed part f and winding it into a roll. If this burr X touches the aluminum foil (not shown), it will damage it and cause the quality of the electrolytic capacitor to deteriorate.
このような問題を避けるため、 さまざまなバリ対策が、 従来から提案されてい る。 例えば、 実公昭 5 9 - 1 0 7 4 3号ゃ特公昭 6 2 - 5 2 4 5 0号には、 パン チの際に圧編部の側部に斜面や段部を設けることにより、 バリを肉薄にし高さを 圧扁部の厚さの範囲に収め、 バリがアルミ箔に触れるのを防ぐことが開示されて いる。 しかしながら、 この場合、 ノ リそのものが無くなるわけではなく、 アルミ 箔を損傷しないという保証はない。  In order to avoid such problems, various burr measures have been proposed. For example, in Japanese Utility Model Publication No. Sho 59-107743 and Japanese Patent Publication No. Sho 62-52450, flashing is performed by providing a slope or step on the side of the knitting part during punching. It is disclosed that the burrs are made thinner and the height is set within the range of the thickness of the pressed portion to prevent burrs from touching the aluminum foil. However, in this case, the glue itself is not lost, and there is no guarantee that the aluminum foil will not be damaged.
一方、 実公平 6— 3 6 5 7 4号では、 上下 2枚の切刃を使いて、 まず上の切刃 を下降させ圧編部を半分の厚さまで切込み、 次に下の切刃を上昇させて残りの半 分の厚さを切断する方法が開示されている。 この方法によれば、 下の切刃は上の 切刃の下死点を超えて上昇するので、 切断バリが発生しにくい。  On the other hand, in Jitsuhei 6—3 6 5 7 4, using the upper and lower two cutting blades, first lower the upper cutting blade, cut the press knitting part to half thickness, and then raise the lower cutting blade. A method of cutting the remaining half of the thickness is disclosed. According to this method, since the lower cutting edge rises beyond the bottom dead center of the upper cutting edge, cutting burrs hardly occur.
しかしながら、 上の切刃が下死点まで下降した後上方へ Mる際に、 該切刃に圧 扁部の周縁を引っ掛けてしまうため、 上向きの返りバリが発生し易い。 この様子を図 1 1及び 1 2を使って説明する。 （なお、 Xが返りバリで、 2 1 はパンチ、 2 2は受け台、 2 3は上の切刃をそれそれ示す。 ） However, when the upper cutting edge descends to the bottom dead center and moves upward, the peripheral edge of the compressed portion is caught on the cutting edge, so that upward return burrs are easily generated. This situation will be described with reference to FIGS. 11 and 12. (Note that X is a return burr, 21 is a punch, 22 is a pedestal, and 23 is the upper cutting edge.)
パンチ 2 1が下降し、 受け台 2 2のアルミ線材を押しつぶして、 圧扁部 f を形 成する際、 上の切刃 2 3は、 パンチ 2 1と一緒に下降し、 パンチ 2 1と受け台 2 2の間隔が H Iのとき、 パンチ 2 1からはみ出た部分に当たる （図 1 1 Aを参 照） 。  When the punch 21 descends and crushes the aluminum wire of the cradle 22 to form the pressed part f, the upper cutting edge 23 descends together with the punch 21 and receives the punch 21 When the interval between the tables 22 is HI, it hits the part that protrudes from the punch 21 (see Fig. 11A).
パンチ 2 1は、 さらに下降して、 受け台 2 2との間隔が H 2のとき止る。 この H 1から H 2までの僅かな下降工程で、 パンチ 2 1と受け台 2 2の間に挟まれた アルミ線材は、 さらにはみ出し、 図 1 1 Aの矢印のように、 切刃 2 3の側面に押 し当たる。  The punch 21 descends further and stops when the distance from the cradle 22 is H2. In the slight descending process from H1 to H2, the aluminum wire caught between the punch 21 and the pedestal 22 protrudes further, and as shown by the arrow in Fig. Press against the side.
パンチ 2 1が間隔 H 2の位置から上昇に転じるとき、 切刃 2 3も一緒に上昇す る。 このとき切刃 2 3がその側面に押し当たったアルミ線材の一部を引っかけて しまうため、 返りバリ Xが発生する （図 1 1 Bを参照） 。  When the punch 21 turns up from the position of the interval H2, the cutting edge 23 also moves up. At this time, the cutting edge 23 catches a part of the aluminum wire rod pressed against the side surface, so that return burr X is generated (see FIG. 11B).
このような返りバリ Xのほか、 上下の切刃ではみ出た部分を切除する場合には、 上の切刃と下の切刃で、 切断するときのアルミ部分の厚さが違うため、 図 1 2に 示すように、 圧扁部の周縁のアール形状が同じものになりにくいという問題もあ る。  In addition to the return burr X, when cutting off the protruding part with the upper and lower cutting blades, the upper and lower cutting blades have different thicknesses of aluminum when cutting. As shown in FIG. 2, there is also a problem that the round shape of the periphery of the pressed portion is unlikely to be the same.
したがって、 本発明は、 電解コンデンサのアルミ箔を傷付けたり性能を劣化さ せるような切断バリや返りバリなどを無くして、 圧扁部の四隅部の断面形状をァ —ル状に形成すると共に、 圧扁部の厚みを均一に形成したタブ端子を製造するこ とを目的とする。  Therefore, the present invention eliminates cutting burrs and return burrs that may damage the aluminum foil of an electrolytic capacitor and degrades its performance, and forms an arc-shaped cross-section at the four corners of the pressed part, An object of the present invention is to manufacture a tab terminal in which a pressed portion has a uniform thickness.
また、 断面のアール形状を最適に形成して、 圧扁部の平面部を広く設計し、 こ れによりアルミ箔との接触面積を可及的に拡大して、 電解コンデンサの効率を高 めることを、 他の目的とする。 発明の開示  In addition, by optimally forming the round shape of the cross section and designing the flat part of the pressed part wide, the contact area with the aluminum foil is increased as much as possible, and the efficiency of the electrolytic capacitor is increased. That is the other purpose. Disclosure of the invention
上記の課題を解決するため、 本発明における電解コンデンサ用夕ブ端子製造装 置は、 アルミ頭部圧扁用のパンチの突き当て位置において、 往動から復動に反転 して、 圧扁したアルミ頭部のはみ出し部に切込み線を刻み込むための切込み用切 刃と、 前記往動する切込み用切刃とは反対方向に移動して前記切込み線に沿って アルミ頭部のはみ出し部を切除する切除用切刃とを具備してなり、 前記切込み用 切刃には、 そのエッジ部分に切欠け部が形成されているものである。 In order to solve the above-mentioned problems, the present invention provides an apparatus for manufacturing a terminal for an electrolytic capacitor for an electrolytic capacitor, comprising: Cut notch for engraving the cut line in the protruding part of the head A cutting blade that moves in a direction opposite to the forward-moving cutting blade and cuts a protruding portion of the aluminum head along the cutting line, and the cutting blade for cutting. Has a notch formed at the edge thereof.
また、 好ましい態様として、 前記アルミ頭部圧扁用のパンチが、 その周縁にパ ンチ面より高くなるようにエッジが設けられてなり、 前記ェヅジの内側がアール 状に形成されてなる。  In a preferred embodiment, the punch for pressing the aluminum head is provided with an edge at a periphery thereof so as to be higher than a punch surface, and the inside of the page is formed in a round shape.
さらに、 前記切込み用切刃の反転位置を自在に調節する切刃反転位置調節機構 を有することが好ましい。  Further, it is preferable to have a cutting edge reversing position adjusting mechanism for freely adjusting the reversing position of the cutting edge for cutting.
本発明の別の態様としての電解コンデンサ用タブ端子の製造方法は、 アルミ頭 部圧扁用パンチにより、 所定厚みになるようにアルミ頭部を扁平状に形成し、 前 記扁平状アルミ頭部の圧扁用パンチからはみ出した部分を、 エッジに切欠き部が 設けられてなる切込み用切刃によって、 一部切込みを形成し、 前記切込み用切刃 と対抗する位置に設けられた切除用切刃により、 一部切込みが形成された前記は み出し部分を、 該切込み部分の反対側から切除する、 工程を含んでなるものであ る。  According to another aspect of the present invention, there is provided a method of manufacturing a tab terminal for an electrolytic capacitor, comprising: forming an aluminum head in a flat shape so as to have a predetermined thickness by using an aluminum head pressing punch; The part protruding from the pressing punch is partially cut by a cutting blade provided with a notch at the edge, and a cutting notch provided at a position opposed to the cutting blade. Cutting off the protruding portion in which a cut is partially formed by a blade from the opposite side of the cut portion.
また、 前記切込み用切刃により一部切込みを形成する際、 前記はみ出し部分と 前記圧扁されたアルミ頭部との間に隙間が設けられてなることが好ましい。  Further, when forming a partial cut by the cutting blade, it is preferable that a gap is provided between the protruding portion and the pressed aluminum head.
さらに、 前記アルミ頭部圧扁用パンチの周縁にエッジが設けられてなり、 前記 エッジ部分がアール状に形成されてなることがより好ましい。  Further, it is more preferable that an edge is provided on a peripheral edge of the punch for pressing the aluminum head, and the edge portion is formed in a round shape.
本発明の別の態様としの電解コンデンサ用タブ端子は、 上記に記載の製造方法 を用いて得られるものであって、 アルミ頭部の圧扁部の厚さが均一で、 かつ圧扁 部断面の四隅がアール状に形成されているものである。  A tab terminal for an electrolytic capacitor according to another aspect of the present invention is obtained by using the manufacturing method described above, wherein a thickness of a pressing portion of an aluminum head is uniform, and a pressing portion cross section is provided. Are formed in a round shape.
また、 前記アール形状のアール半径が、 圧扁部の厚みを 1とした場合に、 0 . 0 3〜0 . 5 0の範囲内であることが好ましい。 さらに、 前記圧扁部の表面が平 滑であり、 突起が形成されてもその高さが 0 . 0 0 5 mmを越えないものである ことがより好ましい。  Further, it is preferable that the radius of the round shape is in the range of 0.03 to 0.50, where the thickness of the pressing portion is 1. Further, it is more preferable that the surface of the pressed portion is smooth and the height thereof does not exceed 0.05 mm even when the projection is formed.
本発明によれば、 切断バリや返りバリなどを無くすと共に、 圧扁部の厚みが均 一なタブ端子を製造することができ、 電解コンデンサの品質向上に極めて有益で あるという効果を奏する。 図面の簡単な説明 ADVANTAGE OF THE INVENTION According to this invention, while cutting burrs, return burrs, etc. are eliminated, the tab terminal with the uniform thickness of a pressing part can be manufactured, and there exists an effect that it is extremely useful for the quality improvement of an electrolytic capacitor. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 本発明を実施した夕プ端子製造装置の全体正面図である。  FIG. 1 is an overall front view of an evening terminal manufacturing apparatus embodying the present invention.
図 2は、 図 1の切断装置を工程順に示す拡大図である。  FIG. 2 is an enlarged view showing the cutting device of FIG. 1 in the order of steps.
図 3は、 図 1の切断装置を工程順に示す拡大図であり、 切断装置の右半分を省 略して示す。  FIG. 3 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and the right half of the cutting device is omitted.
図 4は、 図 1の切断装置を工程順に示す拡大図であり、 切断装置の右半分を省 略して示す。  FIG. 4 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and omits the right half of the cutting device.
図 5は、 図 1の切断装置を工程順に示す拡大図であり、 切断装置の右半分を省 略して示す。  FIG. 5 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and omits the right half of the cutting device.
図 6は、 図 1の切断装置を工程順に示す拡大図であり、 切断装置の右半分を省 略して示す。  FIG. 6 is an enlarged view showing the cutting device of FIG. 1 in the order of steps, and omits a right half of the cutting device.
図 7は、 図 4の要部をさらに拡大して工程順に示したものである。  FIG. 7 shows the main part of FIG. 4 in a further enlarged order in the order of steps.
図 8は、 図 4の要部をさらに拡大して工程順に示したものである。  FIG. 8 shows the main part of FIG. 4 in a further enlarged order in the order of steps.
図 9は、 図 4の要部をさらに拡大して工程順に示したものである。  FIG. 9 shows the main part of FIG. 4 in a further enlarged order in the order of steps.
図 1 0は、 本発明を実施したパンチの拡大断面図である。  FIG. 10 is an enlarged sectional view of a punch embodying the present invention.
図 1 1は、 従来例の要部拡大図である。  FIG. 11 is an enlarged view of a main part of the conventional example.
図 1 2は、 従来装置で製造した夕プ端子の圧扁部の拡大断面図である。  FIG. 12 is an enlarged cross-sectional view of a pressed portion of a sunset terminal manufactured by a conventional apparatus.
図 1 3は、 図 1 2の夕ブ端子の全体斜視図である。  FIG. 13 is an overall perspective view of the evening terminal of FIG.
図 1 4は、 本発明におけるタブ端子の圧扁部の拡大断面図である。 発明を実施するための最良の形態  FIG. 14 is an enlarged cross-sectional view of the pressed portion of the tab terminal according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
図 1は本発明装置の全体正面図を示す。  FIG. 1 shows an overall front view of the device of the present invention.
受け台 1は基礎 2に固定されており、 その上方にパンチ 3が設けられており、 両者が対抗するよう配置されている。  The cradle 1 is fixed to the foundation 2, and a punch 3 is provided above the pedestal 2, and they are arranged so as to oppose each other.
受け台 1とパンチ 3の中間に切断装置 4が設置され、 昇降台 5は基礎 2に立て た垂直の支柱 6に摺動自在に挿通されている。 パンチ 3は、 昇降台 5に設けられ た垂直方向の通孔 7に揷通される。  A cutting device 4 is installed between the receiving table 1 and the punch 3, and the elevating table 5 is slidably inserted into a vertical support 6 erected on the foundation 2. The punch 3 is passed through a vertical through-hole 7 provided in the lift 5.
パンチ昇降台 8は、 昇降台 5と同様に、 支柱 6に摺動自在に揷通されている。 昇降ロッド 9は、 下端がパンチ昇降台 8に連結されており、 上端は駆動源 （図 示せず） に接続されている。 この昇降ロッド 9が上下することにより、 パンチ 3 とパンチ昇降台 8とが共に上下運動を行う。 The punch elevating table 8 is slidably communicated with the column 6 like the elevating table 5. The lift rod 9 has a lower end connected to the punch lift 8 and an upper end connected to a drive source (not shown). When the lifting rod 9 moves up and down, the punch 3 and the punch lifting table 8 move up and down together.
カム 1 0には、 これに長さ調節自在のねじロヅド 1 1のロール 1 2が接触して おり、 ねじロッド 1 1は昇降台 5に連結され、 これらにより、 切刃反転位置調整 機構が構成されている。  The cam 10 is in contact with the roll 12 of the screw rod 11 whose length can be adjusted, and the screw rod 11 is connected to the elevating platform 5 to form a cutting edge reversing position adjusting mechanism. Have been.
切断装置 4は、 図 2の詳細図に示すように、 切込み用切刃 1 3および切除用切 刃 1 4は、 パンチ 3および受け台 1の左右に、 切刃どおしが上下接近した配置と なるよう一体的に組み付けられている。  As shown in the detailed view of Fig. 2, the cutting device 4 has cutting blades 13 and cutting blades 14 that are arranged so that the cutting blades are close to each other on the left and right sides of the punch 3 and the cradle 1. It is integrally assembled so that
図 7の拡大図に示すように、 切込み用切刃 1 3は、 そのエッジに切欠き部 pを 有している。  As shown in the enlarged view of FIG. 7, the cutting edge 13 has a notch p at its edge.
次に、 昇降ロッド 9を駆動してパンチ昇降台 8を下降すると、 受け台 1に置い たアルミ頭部 bの上にパンチ 3が下り、 アルミ頭部 bが押しつぶしされて所定の 厚みの扁平形状に形成される （図 3 ) 。  Next, when the lifting rod 9 is driven and the punch lifting table 8 is lowered, the punch 3 descends on the aluminum head b placed on the cradle 1 and the aluminum head b is crushed to obtain a flat shape having a predetermined thickness. (Fig. 3).
次に、 カム 1 0により切断装置 4が下がることによって、 切込み用切刃 1 3が、 アルミ頭部 bのパンチ 3からはみ出した部分を一部切り込み、 はみ出し部に切込 み線を刻み込む （図 4 ) 。  Next, when the cutting device 4 is lowered by the cam 10, the cutting blade 13 cuts a part of the aluminum head b protruding from the punch 3, and cuts a cut line in the protruding portion (see FIG. Four ) .
その後、 切断装置 4だけ反転上昇し、 切込み用切刃 1 3が上に離れると同時に 下の切除用切刃 1 4がパンチ 3の先端より上方に移動し、 アルミ頭部 bのはみ出 し部を切込み線から切り離し切除する （図 5 ) 。 切除されたアルミのカスは、 ェ ァで吹き飛ばすことにより除去される。  After that, the cutting device 4 is turned upside down and the cutting blade 13 moves upward, and at the same time, the lower cutting blade 14 moves above the tip of the punch 3 to remove the protruding part of the aluminum head b. Cut away from the score line and resect (Fig. 5). The cut aluminum scum is removed by blowing it off with a blower.
次に、 パンチ 3が上昇して受け台 1の上方を開放し、 製品の夕プ端子を得る (図 6 ) 。  Next, the punch 3 is lifted to open the upper part of the cradle 1 to obtain a product terminal (FIG. 6).
パンチ 3と切断装置 4の相互のタイミングおよびストロークは、 ねじロッド 1 1の長さを調整することにより制御できる。 夕イミングおよびストロークが調節 された状態でのパンチ 3と切り込み用切刃 1 3の位置関係を図 7〜 9に拡大して 示す。  The mutual timing and stroke of the punch 3 and the cutting device 4 can be controlled by adjusting the length of the screw rod 11. The positional relationship between the punch 3 and the cutting edge 13 with the evening adjustment and stroke adjusted is shown in Figs.
図 7〜 9を参照して、 本発明における夕プ端子の製造方法をさらに詳細に説明 する。 パンチ 3が下降し、 アルミ頭部は所定の厚みとなるように押しつぶされ、 パンチ 3からアルミ頭部 bの一部がはみ出す。 次に切り込み用切刃 1 3が下がり 出し、 図 7から図 8の状態になる。 . With reference to FIGS. 7 to 9, the method of manufacturing a stamp terminal according to the present invention will be described in further detail. Punch 3 descends and the aluminum head is crushed to a specified thickness. Part of aluminum head b protrudes from punch 3. Next, the cutting edge 13 is lowered, and the state shown in FIGS. 7 to 8 is obtained. .
図 7では、 切込み用切刃 1 3が、 はみ出し部に当り、 はみ出し部を図 8のよう に押し下る。 この押し下げにより、 パンチ 3と受け台 1との間に挟まれた部分と、 はみ出した部分との境界付近が引っ張られる。 パンチ 3が、 図 7に示す位置より エッジの切欠き部 pの深さだけ下がると、 切欠き部 pの端のエッジにより、 はみ 出し部が切除され始める。  In FIG. 7, the cutting blade 13 for cutting hits the protruding portion and pushes the protruding portion down as shown in FIG. Due to this depression, the vicinity of the boundary between the portion sandwiched between the punch 3 and the cradle 1 and the protruding portion is pulled. When the punch 3 is lowered from the position shown in FIG. 7 by the depth of the notch p of the edge, the protruding portion starts to be cut off by the edge at the end of the notch p.
続いて、 図 9に示すように、 切刃 1 3がさらに下降して、 圧扁されたアルミ頭 部 bの厚みの半分程度の位置まで移動すると、 引っ張られた部分が切れて、 当該 部分がパンチ 3側に引き戻され、 いわゆるスプリングバックという現象が起こる。 この現象により、 切刃 1 3と圧扁部の間に隙間 tを生じる。  Subsequently, as shown in FIG. 9, when the cutting blade 13 further descends and moves to a position about half the thickness of the pressed aluminum head b, the pulled portion is cut, and the portion is cut. It is pulled back to the punch 3 side, so-called springback phenomenon occurs. This phenomenon creates a gap t between the cutting edge 13 and the pressing portion.
このようにして形成された隙間 tのために、 切刃 1 3が上昇に転じる際、 切刃 1 3は圧扁部の周縁を引っ掛けることがない。 従って返りバリが発生しない。 ここで、 図 1 0に示すように、 パンチ 3の周縁にパンチ面より高くェヅジを立 て、 エッジの内側をアール 1 5に形成することにより、 図 1 4に示すように、 ァ ルミ頭部の圧扁部の厚さが均一でかつ断面の四隅 rが同じアール形状を有する夕 ブ端子を得ることができる。  Due to the gap t thus formed, when the cutting edge 13 starts to move upward, the cutting edge 13 does not catch on the periphery of the pressed portion. Therefore, no return burr occurs. Here, as shown in FIG. 10, the edge of the punch 3 is raised above the punch surface, and the inside of the edge is formed into a radius 15 to form the aluminum head as shown in FIG. It is possible to obtain an evening terminal having a flattened portion having a uniform thickness and four corners r of the cross section having the same round shape.
このようなアルミ頭部のタブ端子は表裏の方向性がなく、 極薄のアルミ箔を損 傷することもなく、 高品質の電解コンデンサが得られる。  Such aluminum head tab terminals have no directivity between the front and back, and do not damage ultra-thin aluminum foil, so that a high-quality electrolytic capacitor can be obtained.
この四隅 rのアール形状は、 アールの半径が圧扁部の厚みを 1とした場合に、 0 . 0 3 - 0 . 0 5の範囲内であることが好ましい。 0 . 0 3を下回ると四隅 r が角張ってアルミ箔を傷つけるおそれがあり、 一方、 0 . 5 0を超えると、 ァー ル部と平面部の境界に不連続な稜線が生じて、 アルミ箔を損傷するおそれがある。 また、 圧扁部の表面は平滑であるのが好ましく、 突起が形成されても、 その高 さが 0 . 0 0 5 mmを越えないことが必要である。  The radius of the four corners r is preferably in the range of 0.03 to 0.05 when the radius of the radius is 1 for the thickness of the pressed portion. If it is less than 0.003, the four corners r may be angular and the aluminum foil may be damaged. May be damaged. Further, it is preferable that the surface of the pressed portion is smooth, and it is necessary that the height of the protrusion is not more than 0.05 mm even when the protrusion is formed.
なお、 図面の示した本発明の実施態様においては、 パンチや切断装置が上下に 動く形式を挙げたが、 左右に動くものでも発明の要旨に変りはない。  In the embodiment of the present invention shown in the drawings, a form in which the punch and the cutting device move up and down is mentioned, but the gist of the invention does not change even if it moves left and right.

Claims

請 求 の 範 囲 The scope of the claims
1 . アルミ頭部圧扁用のパンチの突き当て位置において、 往動から復動に反 転して、 圧扁したアルミ頭部のはみ出し部に切込み線を刻み込むための切込み用 切刃と、 1. At the abutting position of the punch for pressing the aluminum head, the cutting edge for cutting the cut line in the protruding part of the pressed aluminum head, inverting from the forward movement to the backward movement,
前記往動する切込み用切刃とは反対方向に移動して前記切込み線に沿ってアル ミ頭部のはみ出し部を切除する切除用切刃とを具備してなり、  A cutting blade that moves in a direction opposite to the cutting blade that moves forward and cuts off the protruding portion of the aluminum head along the cutting line,
前記切込み用切刃には、 そのエツジ部分に切欠け部が形成されている、 電解コンデンサ用夕プ端子製造装置。  An apparatus for manufacturing a terminal for an electrolytic capacitor, wherein a notch is formed in an edge portion of the cutting edge.
2 . 前記アルミ頭部圧扁用のパンチが、 その周縁にパンチ面より高くなるよ うにェヅジが設けられてなり、 前記ェッジの内側がアール状に形成されてなる、 請求項 1に記載の電解コンデンサ用夕プ端子製造装置。 2. The electrolysis according to claim 1, wherein the punch for pressing the aluminum head is provided with an edge on the periphery thereof so as to be higher than the punch surface, and the inside of the edge is formed in a round shape. Equipment for manufacturing capacitor terminals for capacitors.
3 . 前記切込み用切刃の反転位置を自在に調節する切刃反転位置調節機構を 有する請求項 1に記載の電解コンデンザのタブ端子製造装置。 3. The tab terminal manufacturing apparatus for an electrolytic condenser according to claim 1, further comprising a cutting edge reversing position adjusting mechanism for freely adjusting the reversing position of the cutting edge.
4 . アルミ頭部圧扁用パンチにより、 所定厚みになるようにアルミ頭部を扁 平状に成形し、 4. The aluminum head is flattened to a predetermined thickness by the aluminum head pressing punch.
前記扁平状アルミ頭部の圧扁用パンチからはみ出した部分を、 エッジに切欠き 部が設けられてなる切込み用切刃によって、 一部切込みを形成し、  A part of the flat aluminum head protruding from the pressing punch is partially cut by a cutting blade provided with a notch in an edge,
前記切込み用切刃と対抗する位置に設けられた切除用切刃により、 一部切込み が形成された前記はみ出し部分を、 該切込み部分の反対側から切除する、 工程を含んでなる、 電解コンデンサ用タブ端子の製造方法。  A step of cutting the protruding portion, in which a part of the notch is formed, from the side opposite to the notch by a cutting blade provided at a position opposite to the notch cutting edge, for an electrolytic capacitor. Tab terminal manufacturing method.
5 . 前記切込み用切刃により一部切込みを形成する際、 前記はみ出し部分と 前記圧扁されたアルミ頭部との間に隙間が設けられてなる、 請求項 4に記載の製 5. The product according to claim 4, wherein a gap is provided between the protruding portion and the pressed aluminum head when partially forming the cut with the cutting blade.
6 . 前記アルミ頭部圧扁用パンチの周縁にエッジが設けられてなり、 前記ェ ッジ部分がアール状に形成されてなる、 請求項 4に記載の製造方法。 6. The manufacturing method according to claim 4, wherein an edge is provided on a periphery of the punch for pressing the aluminum head, and the edge portion is formed in a round shape.
7 . 請求項 4 ~ 6のいずれか 1項に記載の製造方法を用いて得られる電解コ ンデンサ用タブ端子であって、 アルミ頭部の圧扁部の厚さが均一で、 かつ圧扁部 断面の四隅がアール状に形成されている、 電解コンデンサ用夕プ端子。 7. A tab terminal for an electrolytic capacitor obtained by using the manufacturing method according to any one of claims 4 to 6, wherein a thickness of a pressed portion of the aluminum head is uniform, and a pressed portion of the aluminum head is provided. This is a terminal for electrolytic capacitors with four corners of the cross section formed in a round shape.
8 . 前記アール形状のアール半径が、 圧扁部の厚みを 1とした場合に、 0 . 0 3〜0 . 5 0の範囲内である、 請求項 7に記載の電解コンデンサ用タブ端子。 8. The tab terminal for an electrolytic capacitor according to claim 7, wherein a radius of the radius of the radius shape is in a range of 0.03 to 0.50, where a thickness of the pressing portion is 1.
9 . 前記圧扁部の表面が平滑であり、 突起が形成されてもその高さが 0 , 0 0 5 mmを越えないものである、 請求項 7または 8に記載の電解コンデンサ用夕 プ端子。 9. The terminal for electrolytic capacitors according to claim 7 or 8, wherein the surface of the pressed portion is smooth and its height does not exceed 0,05 mm even when a projection is formed. .
PCT/JP2003/005780 2002-05-24 2003-05-08 Tab terminal for electrolytic capacitor, and method and equipment for manufacturing the tab terminal WO2003100802A1 (en)

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Publication number Priority date Publication date Assignee Title
EP3846190A1 (en) * 2019-12-30 2021-07-07 Solaredge Technologies Ltd. Enhanced capacitor tabs

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JP4619754B2 (en) * 2004-11-17 2011-01-26 湖北工業株式会社 Tab terminal for electrolytic capacitor
CN105448546A (en) * 2016-01-07 2016-03-30 深圳市金联富电子科技有限公司 Burr-free processing technology for capacitor guide pin
JP6550363B2 (en) 2016-03-09 2019-07-24 湖北工業株式会社 Lead wire terminal for electrolytic capacitor, electrolytic capacitor, and method of manufacturing electrolytic capacitor
JP7180936B1 (en) * 2022-04-07 2022-12-05 湖北工業株式会社 Lead terminal for electrolytic capacitor, apparatus for manufacturing rolled part, and method for manufacturing rolled part

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JPS6064424A (en) * 1983-09-19 1985-04-13 原井　一夫 Method of producing tab terminal of electrolytic condenser and device
JPS6252450B2 (en) * 1979-07-10 1987-11-05 Tozuka Sangyo Kk
JPH0636574Y2 (en) * 1989-11-28 1994-09-21 和男 中野 Electrolytic capacitor tab terminal manufacturing equipment
JPH08203793A (en) * 1995-01-25 1996-08-09 Matsushita Electric Ind Co Ltd Manufacture of lead for electronic component

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JPS6252450B2 (en) * 1979-07-10 1987-11-05 Tozuka Sangyo Kk
JPS6064424A (en) * 1983-09-19 1985-04-13 原井　一夫 Method of producing tab terminal of electrolytic condenser and device
JPH0636574Y2 (en) * 1989-11-28 1994-09-21 和男 中野 Electrolytic capacitor tab terminal manufacturing equipment
JPH08203793A (en) * 1995-01-25 1996-08-09 Matsushita Electric Ind Co Ltd Manufacture of lead for electronic component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3846190A1 (en) * 2019-12-30 2021-07-07 Solaredge Technologies Ltd. Enhanced capacitor tabs
US11705286B2 (en) 2019-12-30 2023-07-18 Solaredge Technologies Ltd. Enhanced capacitor tabs

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JP2003347174A (en) 2003-12-05
TW200403699A (en) 2004-03-01
MY140925A (en) 2010-02-12
CN100437852C (en) 2008-11-26
AU2003235899A1 (en) 2003-12-12
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KR20040108779A (en) 2004-12-24
JP4782969B2 (en) 2011-09-28

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