JP4059674B2 - Battery insulating ring insertion device and battery manufacturing method - Google Patents

Battery insulating ring insertion device and battery manufacturing method Download PDF

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JP4059674B2
JP4059674B2 JP2002006134A JP2002006134A JP4059674B2 JP 4059674 B2 JP4059674 B2 JP 4059674B2 JP 2002006134 A JP2002006134 A JP 2002006134A JP 2002006134 A JP2002006134 A JP 2002006134A JP 4059674 B2 JP4059674 B2 JP 4059674B2
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battery
insulating ring
battery body
shrink film
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JP2003208878A (en
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則行 清水
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FDK Twicell Co Ltd
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Toshiba Battery Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Description

【0001】
【発明の属する技術分野】
本発明は、電池用の絶縁リング挿入装置、及び電池の製造方法に関する。
【0002】
【従来の技術】
たとえばニッケル亜鉛電池、二酸化マンガン電池などの電池は、携帯型ラジオなどの電源に用いられており、これら携帯型機器類の高容量化ないし高機能化などに伴って、電源電池の信頼性や長寿命化などに対する要望が高まっている。そして、電池の高容量化ないし高性能化に当たっては、たとえば水酸化ニッケル系化合物を主成分とする正極活物質、亜鉛を主成分とする負極活物質としたニッケル亜鉛電池が期待されている。
【0003】
また、これら一次電池は、品種やメーカー表示のため、通常、電池個々に、その外周面などに印刷表示ラベルが貼着されている。さらに、商品の見栄え、取扱過程での短絡防止、あるいは取扱の安全性ないし信頼性の向上確保などを目的として、シュリンクフィルムで外周面を被覆・外装することも知られている。なお、このシュリンクフィルムによる被覆・外装で、シュリンクフィルム自体に印刷表示ラベルの機能を持たせる場合もある。
【0004】
図3は、上記シュリンクフィルムに外装ラベルの機能を持たせたアルカリ電池の概略構成を示す一部切り欠き断面図である。図3において、1は円筒状の電池本体で、2は一方の電極端子を兼ねる電池外装缶、3は前記電池外装缶2内の電池要素4に一端が接続し、他端が電池外装缶2外に絶縁・液密に導出された他方の電極端子、5は印刷表示ラベル5aを有するシュリンクフィルム層である。
【0005】
ここで、シュリンクフィルム層5は、たとえばポリ塩化ビニル樹脂、ポリエステル樹脂などを素材とした熱収縮性樹脂フィルムである。そして、シュリンクフィルム層5による外装ラベル被覆は、電池本体1の外周面に、その端面よりも少し突出させてシュリンクフィルムをチューブ状(形)に巻き付け、あるいはシュリンクフィルムチューブを嵌合し、熱収縮させることによって行われる。つまり、チューブ形に巻き付けなどされたシュリンクフィルムは、中央部に引っ張られながら(熱収縮性)、電池本体1外周面を密着的に被覆しする一方、両端面部A,Bの一部も被覆・封装する形態で一体化されている。
【0006】
【発明が解決しようとする課題】
上記シュリンクフィルム層5の外周面の外装・被覆により、電池の見栄え向上や保管時の安定性などを確保し易くなるが、実用上、なお、次のような不都合が認められる。すなわち、この種のアルカリ電池は、たとえばラジオや懐中電灯などでの使用に当たって、機器類の少なくとも一方の端子がコイルバネ形である端子間に、電池の両端面を挟着・対接させる形態が採られている。
【0007】
そして、このような接続・装着の構成においては、電池の装着や取り外しの繰り返し過程などで、コイルバネ形の端子によって、外装表示ラベルなどを兼ねるシュリンクフィルム5が損傷され易いという問題がある。すなわち、コイルバネ形端子に接続する電池の端面B側では、前記シュリンクフィルム5の封装の損傷が起こり易く、電池の一電極端子面Bの絶縁を充分に確保することが困難で、電池短絡不良を招来する恐れがある。
【0008】
ここで、電池短絡不良の発生が懸念されることは、これを電源に使用する機器類の信頼性を損なうだけでなく、ときには安全性を損なうことにもなる。つまり、機器類の安全で、信頼性の高い使用ないし利用が損なわれることになり、実用上、由々しい問題提起となるため、その早急な改善対策が望まれる。
【0009】
本発明は、上記事情に対処してなされたもので、電池の信頼性や安全性の向上を容易に図れる製造に適する装置、及び信頼性の高い電池を製造する方法の提供を目的とする。
【0010】
【課題を解決するための手段】
請求項1の発明は、一方の電極端子を兼ねる電池外装缶内に、他方の電極端子を絶縁・液密に導出して電池要素が封装され、かつ電池外装缶外周面に少なくとも一端面よりも端部を突出させてチューブ形にシュリンクフィルムを被覆した電池本体を搬送する第1の搬送系と、
前記第1の搬送系で搬送された電池本体が方向付けて移載され、この移載された電池本体を摺動的に把持して搬送する把持部を有するダイヤル型搬送系と、
前記ダイヤル型搬送系で方向付けされて搬送される電池本体のチューブ形のシュリンクチューブ開口底面部に、絶縁リングを嵌合支持する支持棒と、この支持棒の周囲に摺動可能に嵌合配置された嵌合部とからなり、この嵌合部が該支持棒に嵌合されている絶縁リングをこの支持棒から離脱させるよう、この支持部とこの嵌合部が相対的に反対方向に移動するよう構成された絶縁リングを嵌合支持して供給するナックアウト型絶縁リング供給機構と、
前記絶縁リング供給機構に対峙して配置され、電池本体を摺動的に進退させて絶縁リングを電池本体の端面に位置決め装着するプランジャー型電池進退機構と、
前記ナックアウト型絶縁リング供給機構及びプランジャー型電池本体進退機構を相対的に進退駆動する駆動機構と、
前記絶縁リングを位置決め装着した電池本体をダイヤル型搬送系から移載され、この移載された電池本体のチューブ形のシュリンクフィルムを熱収縮させて電池本体の端面部に絶縁リングを封装する加熱機構部と、
を有することを特徴とする電池用絶縁リング挿入装置である。
【0011】
請求項2の発明は、一方の電極端子を兼ねる電池外装缶内に、他方の電極端子を絶縁・液密に導出して電池要素を封装して電池本体を組立・作製する工程と、
前記電池本体外周面に端面よりも端部を突出させてチューブ形にシュリンクフィルムを被覆し、かつ他方の電極端子導出面側に突出させた領域を熱収縮させてシュリンクフィルムの一端側を電池本体面に固定する工程と、
前記一端側を電池本体面に固定したチューブ形のシュリンクフィルムの開口端側から絶縁リングを電池本体端面に、絶縁リングを嵌合支持する支持棒と、この支持棒の周囲に摺動可能に嵌合配置された嵌合部とからなり、この嵌合部が該支持棒に嵌合されている絶縁リングをこの支持棒から離脱させるよう、この支持部とこの嵌合部が相対的に反対方向に移動するよう構成されたナックアウト型絶縁リング供給機構を用いて挿入・位置決め配置する工程と、
前記絶縁リングを挿入・位置決め配置した領域を含むシュリンクフィルムを熱収縮させて電池本体の端面部に絶縁リングを封装する工程と、
を有することを特徴とする電池の製造方法である。
【0012】
請求項1及び2の発明は、次のような知見に基づいてなされたものである。すなわち、本発明者は、電極端子が両端面に設定された電池の外周面をシュリンクフィルムで被覆・外装する構成において、コイルバネ形端子の圧着などによる電極面端縁部のシュリンクフィルム損傷発生の防止ないし抑制策を鋭意検討した。その結果、少なくとも電池外装缶底面側に絶縁リングを配置し、この絶縁リングをチューブ状のシュリンクフィルム封装端縁部に介挿させた場合、コイルバネ形端子の圧着などによる損傷発生が、効果的に防止ないし抑制されることを見出してこの発明に至った。
【0013】
請求項1及び2の発明において、対象となる電池本体は、たとえば単1形、単2形、単3形、単4形などのニッケル亜鉛電池、二酸化マンガン電池などであり、一般的には、電池要素がインサイドアウト型もしくは捲回型の円筒状ないし多角状の電池である。また、前記電池本体は、シュリンクフィルムによる外装封止に先だって、外周面に所要の表示事項を印刷した表示ラベルを貼着しておいてもよいが、シュリンクフィルムを印刷表示ラベルと兼用させてもよい。
【0014】
ここで、シュリンクフィルムは、たとえばポリ塩化ビニル樹脂、ポリエチレンテレフタレート樹脂、ポリエチレン樹脂、放射線ポリエチレン樹脂、あるいはエチレン−酢酸ビニル共重合体などを素材とした厚さ30〜100μm程度のフィルムである。そして、電池本体に対する嵌合的な配置は、電池外周面にチューブ状に巻き付け貼着方式、もしくはチューブ化して電池を嵌合ないし挿入する方式などが採られる。
【0015】
具体的には、貼着方式もしくは挿入方式のいずれの場合も、シュリンクフィルムの両端側は、電池本体の両端面の外周縁部を被覆封装できるように、電池本体端面よりも突出させる。また、絶縁リンクの装着を省略できる端面側は、部分的にチューブ形化したシュリンクフィルムの熱収縮処理を行い、その端面外周縁部を被覆封装して、嵌合・配置したシュリンクフィルムの一端側を固定化しておくこと、位置ズレなども防止できるので望ましい。
【0016】
請求項1及び2の発明において、電池本体の端面部(外周縁部)に配置する絶縁リングは、たとえば絶縁紙や絶縁性プラスチック類を素材としたもので、厚さは、一般的に、0.1〜0.5mm程度で充分である。また、その外径は、電池本体の外径に対応して選択・設定される。ここで、絶縁リングの厚さ及び内径(帯幅)は、電池本体端面に対するシュリンクフィルムの被覆封装部が急峻な傾斜を形成しないように設定することが望ましい。
【0017】
請求項1及び2の発明において、電池本体の端面部(外周縁部)に対する絶縁リングの供給配置は、絶縁リングを串刺しする支持棒と、この支持棒を摺動的に嵌合する一方、先端面が絶縁リングを押圧する嵌合部とから成るプランジャーが好ましい。なお、このプランジャーによる絶縁リングの供給配置に当たっては、電池本体の及びプランジャーの相対的な進退で行われ、また、この場合、プランジャーガイド機構の配置・付設が望ましい。
【0018】
請求項1及び2の発明において、絶縁リングの供給配置後に、チューブ形化させたシュリンクフィルムの開口側を熱収縮させて、絶縁リングを配置した電池本体の端面外周縁を被覆封装する加熱は、たとえば全体的であってもよいし、あるいは対応領域部を選択的に行つてもよい。特に、シュリンクフィルムの開口端縁部を主体とした加熱方式の場合は、省エネルギーないし省資源などの点で好ましい。
【0019】
請求項1の発明では、電池本体のシュリンクフィルムによる外装封止が量産的に行われるだけでなく、電池の実用過程で、外装封止するシュリンクフィルム破損ないし損傷を起こし易い領域の絶縁補強を行える。すなわち、電極端子面領域の絶縁性の補強によって、短絡発生などが容易に解消ないし回避でき、安全性もしくは信頼性の高い電池の量産性向上を図れる。
【0020】
請求項2の発明では、短絡発生などが解消ないし回避され、信頼性の高い外装表示ラベル封装形の電池を歩留まりよく提供できる。
【0021】
【発明の実施態様】
以下、図1及び図2を参照して実施例を説明する。
【0022】
図1は、実施例に係る電池用絶縁リング挿入装置の概略構成を示す上面図、図2(a),(b)は、同じく実施例に係る電池用絶縁リング挿入装置の一部を拡大してその動作を模式的に示す断面図である。図1及び図2(a),(b)において、6はアルカリ電池中間製品であり、基本的には、前記図3に示すような構成となっている。すなわち、一方の電極端子を兼ねる電池外装缶2内に、他方の電極端子3を絶縁・液密に導出して電池要素4が封装され、かつ電池外装缶2外周面に少なくとも一端面よりも端部を突出させてシュリンクフィルム5をチューブ状に被覆した電池中間製品(たとえばアルカリ電池本体)である。なお、電池本体6の外周面をチューブ形に被覆するシュリンクフィルム5の一端(電池本体端面A)側は、一般的に、予め加熱収縮して端面外周縁部を被覆封装した構成を採る。
【0023】
7は前記電池本体(電池中間製品)6を搬送する第1の搬送系、たとえば供給される電池本体6を、その電池本体端面B(シュリンクフィルム5他端開口側)を上方とし、ほぼ垂直方向に把持して間欠的にダイヤル型搬送系8に移載する構成を採っている。ここで、ダイヤル型搬送系8は、電池本体6を摺動的に把持して搬送する把持部を有し、一定の方向に回転・搬送する。
【0024】
また、9は前記ダイヤル型搬送系8に隣接して設置されたナックアウト型絶縁リング供給機構である。すなわち、絶縁リング供給系10から供給される絶縁リング11を嵌合支持し、間欠的にダイヤル型搬送系8で搬送されてくる電池本体のシュリンクチューブ開口底面部に位置決め供給するものである。具体的には、絶縁リング11を嵌合支持する支持棒9aと、前記支持棒9aを摺動的に嵌合し、かつ先端面が絶縁リング11の押し出し・離脱の作用をする嵌合部9bとを有する構造を採っている。
【0025】
ここで、ナックアウト型絶縁リング供給機構9は、要すればガイド機構12を介して電池本体6に対峙し(図2(a)参照)、電池本体6端面外周縁に対する位置決め供給時に、嵌合部9b先端面が絶縁リング11を押さえる一方、支持棒9aが上昇しながら離脱する(図2(b)参照)ように作用する。
【0026】
13は前記絶縁リング供給機構9に対峙して配置されたプランジャー型電池進退機構である。すなわち、前記ダイヤル型搬送系8に移載・把持された電池本体6を摺動的に進退させ、電池本体6の端面外周縁に、絶縁リング11を位置決め装着するように作用するプランジャー型の電池進退機構である。そして、このプランジャー型の電池進退機構13は、前記ナックアウト型絶縁リング供給機構9との協同的な作用によって、所要の絶縁リング11の位置決め装着・配置を行うために、駆動機構(図示省略)によって、これらが相対的に進退駆動するように構成されている。
【0027】
さらに、14は前記絶縁リング11を位置決め装着した電池本体6′をダイヤル型搬送系8から移載され、この移載された電池本体6′を加熱機構部15に移行する移載手段である。ここで、加熱機構部15は、前記電池本体6′のシュリンクフィルムを熱収縮させて電池本体6′の端面外周縁部に絶縁リング11を封装する作用に寄与する。そして、この加熱機構部15は、少なくともシュリンクフィルムの開口端縁部領域を、ほぼ一様ないし同時に加熱できるように、たとえば電池本体6′を回転搬送する方式、温風加熱方式などを備えていることが望ましい。
【0028】
次ぎ、上記装置を使用したアルカリ一次電池の製造例を説明する。先ず、常套的な手段によって、一方の電極端子を兼ねる電池外装缶内に、他方の電極端子を絶縁・液密に導出して電池要素を封装してアルカリ電池本体を組立・作製する。その後、前記電池本体の外周面に端面よりも端部を突出させて表示ラベル兼用のシュリンクフィルムをチューブ形(円筒状)に巻き付け被覆する一方、他方の電極端子を導出した端面から突出する領域を熱収縮させ、チューブ形シュリンクフィルムの一端側を電池本体面に固定する。
【0029】
このように構成したアルカリ電池本体6を第1の搬送系7に移載し、ダイヤル型搬送系8に供給して間欠的に搬送する。このとき、アルカリ電池本体6は、チューブ形化したシュリンクフィルムの開口端を上向きとし、ほぼ垂直に、また、摺動的にダイヤル型搬送系8に把持される。そして、ナックアウト型絶縁リング供給機構9の位置に搬送それた時点で、絶縁リング11嵌合支持する一方、ナックアウト型絶縁リング供給機構9、及びこれに対峙して配置されているプランジャー型電池進退機構13の駆動によって、絶縁リング11を電池本体6の上端面に、挿入・位置決め配置する。
【0030】
上記絶縁リング11を挿入・位置決め配置した電池本体6′は、その後、絶縁リング11の挿入・有無、位置ズレの有無など良否を判定し、不良品を取り除いて移載手段14の位置まで搬送され、そこでダイヤル型搬送系8から、移載手段14を介して加熱機構部15に供給される。ここで、電池本体6′は、温風が吹き付けられる領域を回転しながら搬送され、前記絶縁リング11の配置領域を含むチューブ状のシュリンクフィルムを熱収縮させて電池本体6′の端面部に絶縁リング11を封装する。
【0031】
この連続的なシュリンク操作においては、表示ラベル兼用のシュリンクフィルムで外装被覆されたアルカリ電池製品が歩留まりよく得られた。すなわち、見栄え良好な外装被覆が容易になされ、また、操作取扱におけるコイルバネ形端子によるシュリンクフィルムの破損など抑制・防止され、短絡の発生など回避できる信頼性の高い電池を歩留まりよく、かつ量産的に製造できた。
【0032】
本発明は、上記実施例に限定されるものでなく、発明の趣旨を逸脱しない範囲で、いろいろの変形を採ることができる。たとえば第1の搬送系を始め各搬送系、加熱機構部の構成など、被加工電池の形状・寸法、あるいは処理量などによって、適宜、選択・設定できる。また、アルカリ電池以外の他の電池や、円筒状以外の電池用についも、同様に適用できる。
【0033】
【発明の効果】
請求項1の発明によれば、見栄えのよい電池外装封止を量産的に行えるだけでなく、電池の実用過程で、外装封止するシュリンクフィルム破損ないし損傷を起こし易い電極端子面領域の絶縁性補強によって、短絡発生などが容易に解消ないし回避できる。つまり、安全性もしくは信頼性の高い見栄えのよい外装封止電池の量産性向上が図られる。
【0034】
請求項2の発明によれば、短絡発生などが解消ないし回避された信頼性の高い外装表示ラベル封装形の電池を歩留まりよく提供できる。
【図面の簡単な説明】
【図1】実施例に係る電池用絶縁リンク挿入装置の概略構成を示す平面図。
【図2】実施例に係る電池用絶縁リンク挿入装置の要部構成を拡大して示す断面図。
【図3】電池の要部構成を示す一部切り欠き断面図。
【符号の説明】
6……電池本体
6′……絶縁リングを位置決め装着した電池本体
7……第1の搬送系
8……ダイヤル型搬送系
9……ナットアウト型絶縁リング供給機構
11……絶縁リング
12……ガイド
13……プランジャー型電池進退機構
14……移載手段
15……加熱機構部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insulating ring insertion device for a battery and a battery manufacturing method.
[0002]
[Prior art]
For example, batteries such as nickel-zinc batteries and manganese dioxide batteries are used as power sources for portable radios and the like, and the reliability and longevity of power supply batteries have increased with the increase in capacity and functionality of these portable devices. There is an increasing demand for longer life. In order to increase the capacity or performance of the battery, for example, a nickel-zinc battery having a positive electrode active material mainly composed of a nickel hydroxide compound and a negative electrode active material mainly composed of zinc is expected.
[0003]
In addition, these primary batteries are usually labeled with a printed display label on the outer peripheral surface or the like of each battery because of the type and manufacturer display. Furthermore, it is also known that the outer peripheral surface is covered and covered with a shrink film for the purpose of improving the appearance of the product, preventing a short circuit in the handling process, or ensuring the improvement of handling safety or reliability. In some cases, the shrink film itself has the function of a printed display label by covering and covering with the shrink film.
[0004]
FIG. 3 is a partially cutaway cross-sectional view showing a schematic configuration of an alkaline battery in which the shrink film has a function of an exterior label. In FIG. 3, 1 is a cylindrical battery body, 2 is a battery outer can that also serves as one electrode terminal, 3 is connected to a battery element 4 in the battery outer can 2, and the other end is a battery outer can 2. The other electrode terminal 5 led out insulatively and liquid-tightly outside is a shrink film layer having a printed display label 5a.
[0005]
Here, the shrink film layer 5 is a heat-shrinkable resin film made of, for example, polyvinyl chloride resin or polyester resin. And the exterior label covering by the shrink film layer 5 is made to protrude slightly from the end face on the outer peripheral surface of the battery body 1, and the shrink film is wound in a tube shape (shape), or the shrink film tube is fitted, and the heat shrink Is done by letting In other words, the shrink film wound around the tube shape is tightly covered with the outer peripheral surface of the battery body 1 while being pulled to the center portion (heat shrinkability), while also covering part of both end portions A and B. It is integrated in the form of sealing.
[0006]
[Problems to be solved by the invention]
The exterior / covering of the outer peripheral surface of the shrink film layer 5 makes it easy to improve the appearance of the battery and ensure stability during storage, but the following inconveniences are recognized in practice. That is, when using this type of alkaline battery, for example, in a radio or a flashlight, at least one terminal of the device is in a coil spring shape, and both ends of the battery are sandwiched and contacted. It has been.
[0007]
In such a connection / mounting configuration, there is a problem that the shrink film 5 that also serves as an exterior display label or the like is easily damaged by the coil spring-shaped terminal in the process of repeatedly mounting and removing the battery. That is, on the side of the end face B of the battery connected to the coil spring type terminal, the shrinkage of the shrink film 5 is likely to occur, and it is difficult to ensure sufficient insulation of the one-electrode terminal face B of the battery. There is a risk of being invited.
[0008]
Here, concern about the occurrence of a battery short-circuit failure not only impairs the reliability of devices that use this as a power source, but also sometimes impairs safety. In other words, the safe and reliable use or use of the equipment is impaired, and it causes a serious problem in practical use. Therefore, an immediate improvement measure is desired.
[0009]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus suitable for manufacturing that can easily improve the reliability and safety of the battery, and a method for manufacturing a highly reliable battery.
[0010]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the battery outer can also serving as one electrode terminal, the other electrode terminal is insulated and liquid-tight, the battery element is sealed, and the outer peripheral surface of the battery outer can is more than at least one end surface. A first transport system that transports a battery body that is covered with a shrink film in a tube shape with an end projecting;
The battery-type main body transported by the first transport system is oriented and transferred, and a dial-type transport system having a gripping part that slidably grips and transports the transferred battery main body, and
A support rod that fits and supports the insulating ring on the bottom of the tube-shaped shrink tube opening of the battery body that is directed and conveyed by the dial-type conveyance system, and is slidably fitted around the support rod. The support part and the fitting part move in the opposite directions so that the insulating ring fitted to the support bar is detached from the support bar. A kuck-out type insulating ring supply mechanism that supplies and supports an insulating ring configured to fit, and
A plunger type battery advancing / retracting mechanism which is arranged to face the insulating ring supply mechanism and which slides the battery body forward and backward to position and mount the insulating ring on the end surface of the battery body;
A drive mechanism for relatively advancing and retracting the knockout type insulating ring supply mechanism and the plunger type battery main body advancing and retracting mechanism;
A heating mechanism in which the battery body on which the insulating ring is positioned and mounted is transferred from the dial-type transport system, and the tube-shaped shrink film of the transferred battery body is thermally contracted to seal the insulating ring on the end surface portion of the battery body. And
It is an insulating ring insertion device for batteries characterized by having.
[0011]
The invention of claim 2 is a process of assembling and producing a battery body by enclosing the battery element by insulating and liquid-tightening the other electrode terminal in a battery outer can that also serves as one electrode terminal;
An end of the battery body is protruded from the end surface of the battery body so as to cover the shrink film in a tube shape, and a region projecting toward the other electrode terminal lead-out surface side is thermally contracted so that one end side of the shrink film is connected to the battery body. Fixing to the surface,
An insulating ring is fitted to the battery body end surface from the opening end side of the tube-shaped shrink film with the one end side fixed to the battery body surface, and a support rod for fitting and supporting the insulating ring, and a slidable fit around the support rod. The support portion and the fitting portion are relatively opposite to each other so that the insulating ring fitted to the support rod is separated from the support rod. Inserting and positioning using a knuckle-type insulating ring supply mechanism configured to move to ,
Heat shrinking a shrink film including a region where the insulating ring is inserted and positioned and sealing the insulating ring on an end surface portion of the battery body; and
A method for producing a battery, comprising:
[0012]
The inventions of claims 1 and 2 have been made based on the following knowledge. That is, the present inventor prevents the occurrence of damage to the shrink film on the edge of the electrode surface due to the crimping of the coil spring type terminal, etc., in the configuration in which the outer peripheral surface of the battery with the electrode terminals set on both end surfaces is covered / exposed with the shrink film. We also studied diligently for suppression measures. As a result, when an insulating ring is placed at least on the bottom side of the battery outer can, and this insulating ring is inserted into the tube-shaped shrink film sealing edge, damage caused by crimping of the coil spring type terminal is effectively prevented. The present invention has been found out to be prevented or suppressed.
[0013]
In the inventions of claims 1 and 2, the target battery body is, for example, a nickel zinc battery, a manganese dioxide battery, etc., such as single 1 type, single 2 type, single 3 type, single 4 type, etc. The battery element is an inside-out type or wound type cylindrical or polygonal battery. In addition, the battery body may have a display label printed with required display items on the outer peripheral surface prior to exterior sealing with a shrink film, but the shrink film may also be used as a print display label. Good.
[0014]
Here, the shrink film is a film having a thickness of about 30 to 100 μm made of, for example, a polyvinyl chloride resin, a polyethylene terephthalate resin, a polyethylene resin, a radiation polyethylene resin, or an ethylene-vinyl acetate copolymer. And the fitting arrangement | positioning with respect to a battery main body employ | adopts the system which winds and adheres to a battery outer periphery surface in the shape of a tube, or the method of fitting or inserting a battery in a tube form.
[0015]
Specifically, in either case of the sticking method or the insertion method, the both end sides of the shrink film are protruded from the end surface of the battery body so that the outer peripheral edge portions of both end faces of the battery body can be covered and sealed. Moreover, the end face side where the installation of the insulation link can be omitted is the one end side of the shrink film which is subjected to the heat shrinkage treatment of the shrink film partially formed into a tube shape, and the outer peripheral edge of the end face is covered and sealed, and fitted and arranged. It is desirable to fix the position and to prevent misalignment.
[0016]
In the first and second aspects of the invention, the insulating ring disposed on the end face (outer peripheral edge) of the battery body is made of, for example, insulating paper or insulating plastic, and the thickness is generally 0. About 1 to 0.5 mm is sufficient. The outer diameter is selected and set corresponding to the outer diameter of the battery body. Here, it is desirable to set the thickness and the inner diameter (band width) of the insulating ring so that the coating sealing portion of the shrink film with respect to the end surface of the battery body does not form a steep slope.
[0017]
According to the first and second aspects of the invention, the supply arrangement of the insulating ring with respect to the end surface portion (outer peripheral edge portion) of the battery main body is such that the support rod for staking the insulating ring and the support rod are slidably fitted, A plunger having a fitting portion whose surface presses the insulating ring is preferable. The insulating ring is supplied and arranged by the plunger by the relative advancement and retraction of the battery body and the plunger. In this case, the arrangement and attachment of the plunger guide mechanism are desirable.
[0018]
In the first and second aspects of the present invention, after the insulating ring is supplied and disposed, the opening side of the shrink film formed into a tube shape is thermally contracted, and the heating for covering and sealing the outer peripheral edge of the end surface of the battery body on which the insulating ring is disposed, For example, it may be global or the corresponding region portion may be selectively performed. In particular, in the case of a heating method mainly composed of the opening edge of the shrink film, it is preferable in terms of energy saving or resource saving.
[0019]
According to the first aspect of the present invention, not only is the exterior sealing of the battery body with the shrink film mass-produced, but the insulation reinforcement can be performed in an area where the shrink film for sealing the exterior is easily damaged or damaged in the practical process of the battery. . That is, by reinforcing the insulating property of the electrode terminal surface region, the occurrence of a short circuit can be easily eliminated or avoided, and the mass productivity of a battery with high safety or reliability can be improved.
[0020]
According to the invention of claim 2, the occurrence of a short circuit is eliminated or avoided, and a highly reliable exterior display label sealed battery can be provided with high yield.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment will be described with reference to FIGS. 1 and 2.
[0022]
FIG. 1 is a top view showing a schematic configuration of a battery insulation ring insertion device according to the embodiment, and FIGS. 2A and 2B are enlarged views of a part of the battery insulation ring insertion device according to the embodiment. It is sectional drawing which shows the operation | movement typically. 1 and 2A and 2B, reference numeral 6 denotes an alkaline battery intermediate product, which basically has a configuration as shown in FIG. That is, in the battery outer can 2 that also serves as one electrode terminal, the other electrode terminal 3 is insulated and liquid-tight, the battery element 4 is sealed, and the outer peripheral surface of the battery outer can 2 is at least more than one end surface. This is a battery intermediate product (for example, an alkaline battery main body) in which the portion is protruded and the shrink film 5 is coated in a tube shape. In addition, one end (battery main body end surface A) side of the shrink film 5 which coat | covers the outer peripheral surface of the battery main body 6 in a tube shape generally takes the structure which heat-shrinked beforehand and coat | covered and sealed the outer peripheral edge part of the end surface.
[0023]
Reference numeral 7 denotes a first transport system for transporting the battery body (battery intermediate product) 6, for example, the supplied battery body 6, with the battery body end face B (the other end opening side of the shrink film 5) facing upward and substantially vertical direction And is intermittently transferred to the dial type conveyance system 8. Here, the dial-type transport system 8 has a grip portion that slidably grips and transports the battery body 6 and rotates and transports the battery body 6 in a certain direction.
[0024]
Reference numeral 9 denotes a knockout type insulating ring supply mechanism installed adjacent to the dial type conveyance system 8. That is, the insulating ring 11 supplied from the insulating ring supply system 10 is fitted and supported, and positioned and supplied to the bottom surface of the shrink tube opening of the battery body that is intermittently conveyed by the dial type conveyance system 8. Specifically, a support rod 9a for fitting and supporting the insulating ring 11 and a fitting portion 9b for slidingly fitting the support rod 9a and having a distal end surface for pushing and releasing the insulating ring 11. It has a structure with.
[0025]
Here, the knuckle-type insulating ring supply mechanism 9 faces the battery body 6 via a guide mechanism 12 if necessary (see FIG. 2A), and is fitted when positioning and supplying to the outer peripheral edge of the battery body 6 end surface. While the tip end surface of the portion 9b presses the insulating ring 11, the support rod 9a acts so as to be lifted and disengaged (see FIG. 2B).
[0026]
Reference numeral 13 denotes a plunger type battery advancing / retreating mechanism that is disposed to face the insulating ring supply mechanism 9. That is, a plunger type that acts to slide and move the battery body 6 transferred and gripped on the dial type conveyance system 8 and position and mount the insulating ring 11 on the outer peripheral edge of the battery body 6. Battery advance / retreat mechanism. The plunger-type battery advance / retreat mechanism 13 is driven by a drive mechanism (not shown) in order to position and mount the required insulation ring 11 in cooperation with the knockout insulation ring supply mechanism 9. ), These are relatively advanced and retracted.
[0027]
Reference numeral 14 denotes transfer means for transferring the battery body 6 ′ with the insulating ring 11 positioned and mounted from the dial-type transport system 8 and transferring the transferred battery body 6 ′ to the heating mechanism 15. Here, the heating mechanism 15 contributes to the effect of heat-shrinking the shrink film of the battery body 6 'to seal the insulating ring 11 on the outer peripheral edge of the end face of the battery body 6'. The heating mechanism 15 includes, for example, a system for rotating and conveying the battery body 6 ', a hot air heating system, etc. so that at least the opening edge region of the shrink film can be heated substantially uniformly or simultaneously. It is desirable.
[0028]
Next, an example of producing an alkaline primary battery using the above apparatus will be described. First, an alkaline battery body is assembled and produced by a conventional means, in which the other electrode terminal is led out in an insulating and liquid-tight manner and the battery element is sealed in a battery outer can that also serves as one electrode terminal. After that, the end of the battery body is protruded from the end surface of the battery body so that the shrink film serving as a display label is wound around the tube shape (cylindrical shape) and covered, while the region protruding from the end surface from which the other electrode terminal is led out. It heat-shrinks and fixes the one end side of a tube-shaped shrink film to a battery main body surface.
[0029]
The alkaline battery body 6 configured in this way is transferred to the first transport system 7 and supplied to the dial-type transport system 8 to be transported intermittently. At this time, the alkaline battery main body 6 is gripped by the dial-type transport system 8 almost vertically and slidably with the opening end of the tube-shaped shrink film facing upward. And when it is conveyed to the position of the knockout type insulating ring supply mechanism 9, the insulating ring 11 is fitted and supported, while the knockout type insulating ring supply mechanism 9 and the plunger type arranged so as to oppose it. By driving the battery advance / retreat mechanism 13, the insulating ring 11 is inserted / positioned on the upper end surface of the battery body 6.
[0030]
The battery body 6 ′ in which the insulating ring 11 is inserted / positioned is then judged as to whether the insulating ring 11 is inserted or not, whether or not there is a displacement, and the defective product is removed and conveyed to the position of the transfer means 14. Therefore, the heat is supplied from the dial type conveyance system 8 to the heating mechanism 15 via the transfer means 14. Here, the battery body 6 ′ is conveyed while rotating in the area where the hot air is blown, and the tubular shrink film including the arrangement area of the insulating ring 11 is thermally contracted to insulate the end surface portion of the battery body 6 ′. The ring 11 is sealed.
[0031]
In this continuous shrink operation, an alkaline battery product covered with a shrink film serving as a display label was obtained with a good yield. In other words, a good-looking exterior coating can be easily made, and a shrinkable film can be prevented and prevented from being damaged by a coil spring-type terminal during handling, and a highly reliable battery that can avoid the occurrence of a short circuit, etc., with high yield and mass production. I was able to manufacture it.
[0032]
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. For example, it can be selected and set as appropriate depending on the shape and dimensions of the battery to be processed, the processing amount, and the like, such as the configuration of the first transport system, each transport system, and the heating mechanism. Moreover, it can apply similarly about batteries other than an alkaline battery and batteries other than a cylindrical form.
[0033]
【The invention's effect】
According to the first aspect of the present invention, not only can the battery exterior sealing having a good appearance be mass-produced, but also the insulation property of the electrode terminal surface region that is likely to cause damage or damage to the shrink film for the exterior sealing in the practical process of the battery. The reinforcement can easily eliminate or avoid the occurrence of a short circuit. That is, it is possible to improve the mass productivity of an externally sealed battery that is safe or reliable and has a good appearance.
[0034]
According to the invention of claim 2, it is possible to provide a battery with a highly reliable exterior display label sealing type in which occurrence of a short circuit is eliminated or avoided and with high yield.
[Brief description of the drawings]
FIG. 1 is a plan view showing a schematic configuration of an insulated link insertion device for a battery according to an embodiment.
FIG. 2 is an enlarged cross-sectional view showing the main configuration of the battery insulation link insertion device according to the embodiment.
FIG. 3 is a partially cutaway cross-sectional view showing the main configuration of a battery.
[Explanation of symbols]
6 ... Battery body 6 '... Battery body 7 with insulation ring positioned and mounted 7 ... First transfer system 8 ... Dial type transfer system 9 ... Nut-out type insulation ring supply mechanism 11 ... Insulation ring 12 ... Guide 13 ... Plunger type battery advance / retreat mechanism 14 ... Transfer means 15 ... Heating mechanism

Claims (2)

一方の電極端子を兼ねる電池外装缶内に、他方の電極端子を絶縁・液密に導出して電池要素が封装され、かつ電池外装缶外周面に少なくとも一端面よりも端部を突出させてチューブ形にシュリンクフィルムを被覆した電池本体を搬送する第1の搬送系と、
前記第1の搬送系で搬送された電池本体が方向付けて移載され、この移載された電池本体を摺動的に把持して搬送する把持部を有するダイヤル型搬送系と、
前記ダイヤル型搬送系で方向付けされて搬送される電池本体のチューブ形のシュリンクフィルム開口底面部に、絶縁リングを嵌合支持する支持棒と、この支持棒の周囲に摺動可能に嵌合配置された嵌合部とからなり、この嵌合部が該支持棒に嵌合されている絶縁リングをこの支持棒から離脱させるよう、この支持部とこの嵌合部が相対的に反対方向に移動するよう構成されたナックアウト型絶縁リング供給機構と、
前記絶縁リング供給機構に対峙して配置され、電池本体を摺動的に進退させて絶縁リングを電池本体の端面に位置決め装着するプランジャー型電池進退機構と、
前記ナックアウト型絶縁リング供給機構及びプランジャー型電池本体進退機構を相対的に進退駆動する駆動機構と、
前記絶縁リングを位置決め装着した電池本体をダイヤル型搬送系から移載され電池本体のシュリンクフィルムを熱収縮させて電池本体の端面部に絶縁リングを封装する加熱機構部と、
を有することを特徴とする電池用絶縁リング挿入装置。
In the battery outer can also serving as one electrode terminal, the other electrode terminal is insulated and liquid-tight, the battery element is sealed, and the battery outer can outer peripheral surface protrudes at least from one end surface to the tube. A first transport system for transporting a battery body coated with a shrink film in a shape;
The battery-type main body transported by the first transport system is oriented and transferred, and a dial-type transport system having a gripping part that slidably grips and transports the transferred battery main body, and
A support rod that fits and supports the insulating ring on the bottom surface of the tube-shaped shrink film opening of the battery body that is directed and conveyed by the dial-type conveyance system, and is slidably fitted around the support rod. The support part and the fitting part move in the opposite directions so that the insulating ring fitted to the support bar is detached from the support bar. A knuckle-type insulating ring supply mechanism configured to :
A plunger type battery advancing / retracting mechanism which is arranged to face the insulating ring supply mechanism and which slides the battery body forward and backward to position and mount the insulating ring on the end surface of the battery body;
A drive mechanism for relatively advancing and retracting the knockout type insulating ring supply mechanism and the plunger type battery main body advancing and retracting mechanism;
A heating mechanism that transfers the battery body with the insulating ring positioned and mounted from the dial-type transport system and thermally shrinks the shrink film of the battery body to seal the insulating ring on the end surface of the battery body;
An insulating ring insertion device for a battery, comprising:
一方の電極端子を兼ねる電池外装缶内に、他方の電極端子を絶縁・液密に導出して電池要素を封装して電池本体を組立・作製する工程と、
前記電池本体外周面に端面よりも端部を突出させてシュリンクフィルムを被覆し、かつ他方の電極端子導出面側に突出させた領域を熱収縮させてシュリンクフィルムの一端側を電池本体面に固定する工程と、
前記一端側を電池本体面に固定したシュリンクフィルムの開口端側から絶縁リングを電池本体端面に、絶縁リングを嵌合支持する支持棒と、この支持棒の周囲に摺動可能に嵌合配置された嵌合部とからなり、この嵌合部が該支持棒に嵌合されている絶縁リングをこの支持棒から離脱させるよう、この支持部とこの嵌合部が相対的に反対方向に移動するよう構成されたナックアウト型絶縁リング供給機構を用いて挿入・位置決め配置する工程と、
前記絶縁リングを挿入・位置決め配置した領域を含むシュリンクフィルムを熱収縮させて電池本体の端面部に絶縁リングを封装する工程と、
を有することを特徴とする電池の製造方法。
In the battery outer can which also serves as one electrode terminal, the process of assembling and producing the battery body by sealing the battery element by insulating and liquid-tightening the other electrode terminal,
The end of the battery body is protruded beyond the end face to cover the shrink film, and the area protruding from the other electrode terminal lead-out surface is thermally shrunk to fix one end of the shrink film to the battery body surface. And a process of
An insulating ring is fitted to the battery body end surface from the opening end side of the shrink film with the one end side fixed to the battery body surface, and a support rod for fitting and supporting the insulating ring is fitted and slidably fitted around the support rod. The support part and the fitting part move in opposite directions so that the insulating ring fitted to the support bar is detached from the support bar. Inserting and positioning using a knuckle-type insulating ring supply mechanism configured as described above ,
Heat shrinking a shrink film including a region where the insulating ring is inserted and positioned and sealing the insulating ring on an end surface portion of the battery body; and
A method for producing a battery, comprising:
JP2002006134A 2002-01-15 2002-01-15 Battery insulating ring insertion device and battery manufacturing method Expired - Fee Related JP4059674B2 (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
US8317976B2 (en) 2000-01-26 2012-11-27 International Paper Company Cut resistant paper and paper articles and method for making same
US8377526B2 (en) 2005-03-11 2013-02-19 International Paper Company Compositions containing expandable microspheres and an ionic compound, as well as methods of making and using the same
US8382945B2 (en) 2008-08-28 2013-02-26 International Paper Company Expandable microspheres and methods of making and using the same
US8460512B2 (en) 2002-09-13 2013-06-11 International Paper Company Paper with improved stiffness and bulk and method for making same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8317976B2 (en) 2000-01-26 2012-11-27 International Paper Company Cut resistant paper and paper articles and method for making same
US8460512B2 (en) 2002-09-13 2013-06-11 International Paper Company Paper with improved stiffness and bulk and method for making same
US8790494B2 (en) 2002-09-13 2014-07-29 International Paper Company Paper with improved stiffness and bulk and method for making same
US8377526B2 (en) 2005-03-11 2013-02-19 International Paper Company Compositions containing expandable microspheres and an ionic compound, as well as methods of making and using the same
US8382945B2 (en) 2008-08-28 2013-02-26 International Paper Company Expandable microspheres and methods of making and using the same
US8679294B2 (en) 2008-08-28 2014-03-25 International Paper Company Expandable microspheres and methods of making and using the same

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