JP2005310725A - Different-diameter coil core for winding device - Google Patents

Different-diameter coil core for winding device Download PDF

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Publication number
JP2005310725A
JP2005310725A JP2004149745A JP2004149745A JP2005310725A JP 2005310725 A JP2005310725 A JP 2005310725A JP 2004149745 A JP2004149745 A JP 2004149745A JP 2004149745 A JP2004149745 A JP 2004149745A JP 2005310725 A JP2005310725 A JP 2005310725A
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Japan
Prior art keywords
winding
core
lead terminal
protective tape
thickness
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Pending
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JP2004149745A
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Japanese (ja)
Inventor
Masao Minafuji
昌雄 皆藤
Yoshihide Kitamura
嘉秀 北村
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KAIDO SEISAKUSHO KK
Kaido Manufacturing Co Ltd
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KAIDO SEISAKUSHO KK
Kaido Manufacturing Co Ltd
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Priority to JP2004149745A priority Critical patent/JP2005310725A/en
Publication of JP2005310725A publication Critical patent/JP2005310725A/en
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

<P>PROBLEM TO BE SOLVED: To provide a different-diameter coil core mechanism in order to preventing deterioration of accuracy of an end face of a material and wrinkle of a material due to thicknesses of a lead terminal and a protection tape generated at a conventional same-diameter coil core. <P>SOLUTION: A mechanism of preventing deterioration of accuracy of an end face of a material and preventing generation of wrinkle is adopted by changing diameters at parts where the lead terminal and the protection tape come in contact with coil cores to be a winding axis of a cylindrical battery element and a cylindrical electrolytic capacitor, in order to eliminate influence of the thicknesses of the lead terminal and the protection tape. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は捲回装置に関する。特に、円筒型電池及び円筒型コンデンサー等の製造の際に用いられる捲回装置に関する。  The present invention relates to a winding device. In particular, the present invention relates to a winding device used in the manufacture of cylindrical batteries, cylindrical capacitors and the like.

例えば、リチウム電池等の二次電池は、金属集電体に一定の間隔で正極活物質が設けられた塗布部を有する正極集電体と、金属集電体に一定の間隔で負極活物質が設けられた塗布部を有する負極集電体とを備え、この正、負極集電体（電池素子材料）とがセパレーター等絶縁体を介して捲回されたものを電池素子とし、ケース内に収容して構成されている。  For example, a secondary battery such as a lithium battery has a positive electrode current collector having a coating portion in which a positive electrode active material is provided on a metal current collector at regular intervals, and a negative electrode active material on the metal current collector at regular intervals. A negative electrode current collector having a coating portion provided, and the positive and negative electrode current collectors (battery element material) wound through an insulator such as a separator as a battery element and housed in a case Configured.

このような構成の二次電池素子を得る捲回装置では、それぞれロール状に巻き上げられた正・負極電池素子材料（原反）及びセパレーター等絶縁体を捲回部まで間欠的かつ断続的に送り出し、捲回部巻芯によって捲回し、正・負極電池素子材料及びセパレーター等絶縁体を所定の長さに切断して電池素子としている。電池素子の外形寸法の一定化、巻き状態の悪化を無くし、巻き上がり素子精度の品質向上を図る。  In the winding device for obtaining the secondary battery element having such a configuration, the positive and negative battery element materials (raw material) and separators such as separators wound up in a roll shape are intermittently and intermittently sent to the winding part. The battery element is wound by winding with a wound core, and the positive / negative battery element material and an insulator such as a separator are cut to a predetermined length. The outer dimensions of the battery element are made constant, the deterioration of the winding state is eliminated, and the quality of the rolled element is improved.

従来、巻芯とは材料が接触する部分については同径であり、凹凸が無いものである。  Conventionally, the core has the same diameter at the portion where the material comes into contact and has no irregularities.

上述した同径方式の巻き芯の場合、リード端子及び保護テープの厚みの分だけ巻き巾方向に対して前後に盛り上がりが発生するために巻軸の真円度が損なわれ電池素子材料が平行に巻き取ることが出来なく、帯状材料の巻き取り端面精度の悪化や電池素子材料にしわが発生する。  In the case of the winding core of the same diameter method described above, the roundness of the winding axis is lost and the battery element material is parallel because the bulge occurs in the winding width direction by the thickness of the lead terminal and the protective tape. Winding cannot be performed, and the winding end surface accuracy of the band-shaped material is deteriorated and the battery element material is wrinkled.

本発明はこれらの問題を解決するものであり、リード端子及び保護テープが接する側の巻芯にリード端子及び保護テープの厚みを考慮した適当な逃がしを設けて加工し、電池素子材料が平行に巻き取れるようにしたものである。  The present invention solves these problems, and is processed by providing an appropriate relief in consideration of the thickness of the lead terminal and the protective tape on the core on the side where the lead terminal and the protective tape are in contact, so that the battery element materials are parallel to each other. It can be rolled up.

前記の課題を解決する為に、本発明では、巻芯にリード端子及び保護テープが接触する部分の巻芯径を変更し、帯状の材料が巻芯に対して平行に接触し巻き取れるようにしたものである。  In order to solve the above-mentioned problems, in the present invention, the diameter of the core where the lead terminal and the protective tape are in contact with the core is changed so that the belt-shaped material can be wound in parallel with the core. It is a thing.

この機構構成によって、帯状材料の巻き取り素子端面が精度よく、かつ電池素子材料にしわが発生することなく巻き取ることができ、二次電池素子の品質を高精度で均一に捲き上げることができる。  With this mechanism configuration, the winding element end face of the belt-shaped material can be wound with high accuracy without causing wrinkles in the battery element material, and the quality of the secondary battery element can be uniformly and accurately raised.

本発明は以上説明した通りであり、本発明に係る異径巻心によれば、材料が巻芯に接触している部分が平行になるため、均一に巻き取ることができ、高精度な円筒型電池及び円筒型電解コンデンサー素子を巻き取ることが可能となる。  The present invention is as described above, and according to the different-diameter core according to the present invention, since the portion where the material is in contact with the core is parallel, it can be wound up evenly, and a highly accurate cylinder The type battery and the cylindrical electrolytic capacitor element can be wound up.

本発明の実施の形態を図面により具体的に説明する。図１は本発明の実施の形態に係る異径巻心の概略構成図である。図１に示すように、リード端子１ｂ及び保護テープ部１ｃの厚みが段付部１ｆにより相殺され、さらに保護テープ１ｇの厚みが逃がし１ｅにより相殺されることにより、巻き方向に対して材料１ｄは平行に巻き取りを行うことができる。  Embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a different diameter winding core according to an embodiment of the present invention. As shown in FIG. 1, the thickness of the lead terminal 1b and the protective tape portion 1c is offset by the stepped portion 1f, and further, the thickness of the protective tape 1g is offset by the relief 1e, so that the material 1d is in the winding direction. Winding can be performed in parallel.

実施の形態に係る異径巻心の概略構成図（側面図）である。  It is a schematic block diagram (side view) of the different diameter winding core which concerns on embodiment. 実施の形態に係る異径巻心の概略構成図（正面図）である。  It is a schematic block diagram (front view) of the different diameter winding core which concerns on embodiment.

符号の説明Explanation of symbols

１ａ 巻心
１ｂ リード端子
１ｃ 保護テープ
１ｄ 材料
１ｅ 巻芯部の逃がし
１ｆ 段付
１ｇ 保護テープ1a Winding core 1b Lead terminal 1c Protective tape 1d Material 1e Relief of core part 1f Stepped 1g Protective tape

Claims (4)

円筒型電池及び円筒型電解コンデンサー等の帯状捲回物の製造過程で用いられる捲回装置において、帯状の材料を巻芯に巻き付ける際、リード端子及び短絡防止用として貼り付けられた保護テープの厚みによる巻き取り時の素子材料端面精度の悪化及びしわの発生を無くすため、巻芯の一部分を加工したことを特徴とする装置。  In a winding device used in the manufacturing process of a strip-shaped wound product such as a cylindrical battery and a cylindrical electrolytic capacitor, when winding the strip-shaped material around the core, the thickness of the protective tape attached to prevent the lead terminal and short circuit In order to eliminate the deterioration of the end face accuracy of the element material and the generation of wrinkles at the time of winding by means of an apparatus, a part of the core is processed. 請求項１の装置において、リード端子及び保護テープの厚みを逃がすため、巻芯のリード端子及び保護テープ貼り付け部と重なる部分を削り、フラット部を設け、帯状の材料が巻芯に対して平行に巻き取れることを特徴とする機構を備えた装置。  In the apparatus of claim 1, in order to escape the thickness of the lead terminal and the protective tape, a portion overlapping the lead terminal and the protective tape attaching portion of the winding core is shaved, a flat portion is provided, and the strip-shaped material is parallel to the winding core. A device equipped with a mechanism characterized by being able to be wound around. 請求項１の装置において、巻芯のリード端子及び保護テープ貼り付け部と重ならない部分にリード端子及び保護テープの厚みと同等の突出部を捲心に設け、帯状の材料が巻芯に対して平行に巻き取れることを特徴とした機構を備えた装置。  2. The apparatus according to claim 1, wherein a protruding portion having a thickness equivalent to the thickness of the lead terminal and the protective tape is provided in a core portion in a portion not overlapping with the lead terminal and the protective tape attaching portion of the core, and the belt-shaped material is disposed on the core. A device equipped with a mechanism that can be wound in parallel. 電池及び電解コンデンサーの製品状態において、リード端子が巻軸となる巻芯に対して最内周で接した場合、リード端子及び保護テープの厚みの影響により捲回素子の真円度が損なわれるために、捲回素子にしわの発生及び材料端面精度が悪化する防止策として、リード端子及び保護テープの厚み分を考慮した上で逃がし加工をした巻芯を使用して捲回することを特徴とした装置。  In the product state of batteries and electrolytic capacitors, the roundness of the winding element is lost due to the influence of the thickness of the lead terminal and the protective tape when the lead terminal is in contact with the winding core serving as the winding shaft at the innermost circumference. In addition, as a measure for preventing wrinkles in the winding element and deterioration of the material end face accuracy, the winding element is wound using a core that has been subjected to relief processing in consideration of the thickness of the lead terminal and the protective tape. Equipment.
JP2004149745A 2004-04-16 2004-04-16 Different-diameter coil core for winding device Pending JP2005310725A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113782351A (en) * 2021-10-15 2021-12-10 常州联威自动化设备有限公司 Mechanism for automatically plugging end part of hard core rod film capacitor
WO2023050977A1 (en) * 2021-09-30 2023-04-06 宁德时代新能源科技股份有限公司 Battery cell, battery, and power consuming device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023050977A1 (en) * 2021-09-30 2023-04-06 宁德时代新能源科技股份有限公司 Battery cell, battery, and power consuming device
CN113782351A (en) * 2021-10-15 2021-12-10 常州联威自动化设备有限公司 Mechanism for automatically plugging end part of hard core rod film capacitor
CN113782351B (en) * 2021-10-15 2022-02-18 常州联威自动化设备有限公司 Mechanism for automatically plugging end part of hard core rod film capacitor

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