JP2017111864A - Electrode cutting device and electrode test method - Google Patents

Electrode cutting device and electrode test method Download PDF

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JP2017111864A
JP2017111864A JP2015243171A JP2015243171A JP2017111864A JP 2017111864 A JP2017111864 A JP 2017111864A JP 2015243171 A JP2015243171 A JP 2015243171A JP 2015243171 A JP2015243171 A JP 2015243171A JP 2017111864 A JP2017111864 A JP 2017111864A
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electrode
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individual
cutting
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JP6720516B2 (en
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寛恭 西原
Hiroyasu Nishihara
寛恭 西原
真也 浅井
Shinya Asai
真也 浅井
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Toyota Industries Corp
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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

PROBLEM TO BE SOLVED: To provide an electrode cutting device and an electrode test method which can improve the quality in image inspection of unit piece electrodes.SOLUTION: An electrode cutting device 1 according to one embodiment comprises: a first conveying part 2 which has a conveying face 22a for supporting a band electrode 10 by coming into contact with a lower face 10b of the band electrode 10, and which conveys the band electrode 10 in a conveyance direction by moving the conveying face 22a in the conveyance direction; a cutting part 3 which cuts the band electrode 10 during conveyance by the first conveying part 2 so as to divide the band electrode 10 into unit piece electrodes 15; and a first imaging part 4 which is arranged to face the conveying face 22a downstream the cutting part 3 in the conveyance direction so as to capture the image of an upper face 15a of each of the unit piece electrodes 15 being conveyed in the conveyance direction.SELECTED DRAWING: Figure 1

Description

本発明は、電極切断装置及び電極検査方法に関する。   The present invention relates to an electrode cutting device and an electrode inspection method.

従来、リチウムイオン二次電池等の、シート状の電極を積層させてなる積層型二次電池が知られている。このような積層型二次電池の製造工程においては、最終製品段階での不具合の発生を防ぐために、積層型二次電池を組み立てる前に個々の電極（以下「個片電極」）について各種検査が実行される。このような各種検査のうちの一つとして、個片電極の表面の画像検査が挙げられる。   Conventionally, a stacked secondary battery such as a lithium ion secondary battery in which sheet-like electrodes are stacked is known. In the manufacturing process of such a multilayer secondary battery, various inspections are performed on individual electrodes (hereinafter referred to as “individual electrodes”) before assembling the multilayer secondary battery in order to prevent occurrence of problems at the final product stage. Executed. As one of such various inspections, there is an image inspection of the surface of the individual electrode.

例えば、特許文献１には、アライメントステージを備えた極板積載装置が記載されている。この極板積載装置では、ベルトコンベアによりアライメントステージ上に移送された正極又は負極の極板は、上方に配置されたカメラにより撮影される。撮影データに基づいて、極板の表面状態が確認されると共にアライメントステージ上での極板の位置が検出される。そして、アライメントステージの移動による極板の位置合わせが行われた後、移載アームにより、正極及び負極の積層が行われる。   For example, Patent Document 1 describes an electrode plate stacking device including an alignment stage. In this electrode plate stacking apparatus, the positive electrode plate or the negative electrode plate transferred onto the alignment stage by the belt conveyor is photographed by a camera disposed above. Based on the imaging data, the surface state of the electrode plate is confirmed and the position of the electrode plate on the alignment stage is detected. Then, after the electrode plate is aligned by the movement of the alignment stage, the positive and negative electrodes are stacked by the transfer arm.

特開２０１２−１７４３８８号公報JP 2012-174388 A

特許文献１に記載の技術は、極板積層装置に関するものであるが、極板が積層装置に至る直前の搬送経路上で極板の検査を行う場合にも、同様にカメラによる撮影が行われることになる。例えば図７に示すように、所定の搬送方向に移動する搬送ベルト１００の搬送面１００ａ上に載置されて搬送される個片電極１１０について考える。このような場合、搬送面１００ａ上の所定位置に配置したカメラの撮像範囲に各個片電極１１０が収まるようにするためには、個片電極１１０間の位置ずれ（位置のばらつき）を予め考慮し、個片電極１１０のサイズよりも大きい撮像範囲Ｃを設定する必要がある。これは、例えば電極が複数の搬送装置を経て搬送される過程において、電極の位置ずれの発生を避けられないことに起因する。   The technique described in Patent Document 1 relates to an electrode plate laminating apparatus. However, when the electrode plate is inspected on the transport path immediately before the electrode plate reaches the laminating apparatus, imaging by the camera is similarly performed. It will be. For example, as shown in FIG. 7, consider an individual electrode 110 that is placed and transported on a transport surface 100a of a transport belt 100 that moves in a predetermined transport direction. In such a case, in order to fit each individual electrode 110 within the imaging range of the camera arranged at a predetermined position on the transport surface 100a, a positional deviation (positional variation) between the individual electrodes 110 is considered in advance. It is necessary to set an imaging range C larger than the size of the individual electrode 110. This is because, for example, in the process in which the electrode is conveyed through a plurality of conveying devices, it is unavoidable that the electrode is displaced.

しかし、個片電極１１０のサイズよりも大きい撮像範囲Ｃを設定した場合には、個片電極１１０のサイズに合った大きさの撮像範囲を設定する場合と比較して、表面検査のために必要となる個片電極１１０部分に対応する画素数が減ってしまう。これは、画像検査の精度低下の原因となる。一方、個片電極１１０のサイズに合った大きさの撮像範囲を設定するために、カメラによる撮像位置よりも搬送方向上流側に個片電極１１０を整列させる機構を導入することは、設備の大型化や設備コストの増大に繋がるといった問題がある。   However, when an imaging range C larger than the size of the individual electrode 110 is set, it is necessary for surface inspection as compared with the case where an imaging range having a size that matches the size of the individual electrode 110 is set. As a result, the number of pixels corresponding to the individual electrode 110 is reduced. This causes a decrease in accuracy of image inspection. On the other hand, in order to set an imaging range that matches the size of the individual electrode 110, introducing a mechanism for aligning the individual electrodes 110 upstream of the imaging position by the camera in the transport direction is a large-scale facility. There is a problem that leads to increase in cost and equipment cost.

そこで、本発明は、個片電極の画像検査の精度を容易に向上させることができる電極切断装置及び電極検査方法を提供することを目的とする。   Then, an object of this invention is to provide the electrode cutting device and electrode inspection method which can improve the precision of the image test | inspection of an individual electrode easily.

本発明の一態様に係る電極切断装置は、長尺の帯状電極の一方側の表面に当接して帯状電極を支持する第１搬送面を有し、第１搬送面を搬送方向に移動させることにより帯状電極を搬送方向に搬送する第１搬送部と、第１搬送部によって搬送中の帯状電極を切断することにより、帯状電極を個片電極に個片化する切断部と、切断部よりも搬送方向下流側において第１搬送面に対向するように配置され、搬送方向に搬送される個片電極の他方側の表面の画像を撮像する第１撮像部と、を備える。   An electrode cutting device according to an aspect of the present invention has a first transport surface that contacts a surface of one side of a long strip electrode and supports the strip electrode, and moves the first transport surface in the transport direction. Than the first transport unit that transports the strip electrode in the transport direction, the cutting unit that separates the strip electrode into individual electrodes by cutting the strip electrode being transported by the first transport unit, and the cutting unit A first imaging unit that is disposed so as to face the first transport surface on the downstream side in the transport direction and captures an image of the surface of the other side of the individual electrode transported in the transport direction.

この電極切断装置では、帯状電極の一方側の表面が第１搬送面に当接した状態で搬送される最中に、切断部が帯状電極を切断して個片電極に個片化し、第１撮像部が当該個片電極の他方側の表面の画像を撮像する。すなわち、帯状電極の切断と個片電極の他方側の表面の画像の取得とが、同一の第１搬送部による搬送過程で実行される。このように、切断部及び第１撮像部を配置することにより、個片電極の位置ずれが少ない状態で当該個片電極の表面画像を精度良く取得することができる。すなわち、搬送される個片電極を整列させるための特別な処理を実行することなく、個片電極の表面画像を精度良く取得することができる。従って、上記電極切断装置によれば、個片電極の画像検査の精度を容易に向上させることができる。   In this electrode cutting device, the cutting part cuts the strip electrode into individual pieces while being transported in a state in which the surface on one side of the strip electrode is in contact with the first transport surface. The imaging unit captures an image of the surface on the other side of the individual electrode. That is, the cutting of the strip electrode and the acquisition of the image of the surface on the other side of the individual electrode are executed in the transport process by the same first transport unit. As described above, by disposing the cutting unit and the first imaging unit, the surface image of the individual electrode can be obtained with high accuracy in a state where the positional deviation of the individual electrode is small. That is, the surface image of the individual electrodes can be obtained with high accuracy without performing a special process for aligning the individual electrodes to be conveyed. Therefore, according to the electrode cutting apparatus, the accuracy of the image inspection of the individual electrodes can be easily improved.

上記電極切断装置では、第１搬送部は、帯状電極及び個片電極を第１搬送面に吸着させる第１吸着部を有してもよい。   In the electrode cutting apparatus, the first transport unit may include a first suction unit that sucks the strip electrode and the individual electrode on the first transport surface.

この構成によれば、帯状電極及び当該帯状電極から個片化された個片電極を第１搬送面に対して適切に位置決めすることができる。これにより、切断部の切断動作による個片電極の位置ずれを極小化でき、個片電極の表面画像をより精度良く取得することができる。その結果、個片電極の画像検査の精度をより向上させることができる。   According to this configuration, the strip electrode and the individual electrode separated from the strip electrode can be appropriately positioned with respect to the first transport surface. Thereby, the position shift of the individual electrode due to the cutting operation of the cutting part can be minimized, and the surface image of the individual electrode can be acquired with higher accuracy. As a result, the accuracy of the image inspection of the individual electrode can be further improved.

上記電極切断装置は、搬送方向上流側の端部が第１搬送面の搬送方向下流側の端部に対向するように第１搬送面と並設され、個片電極の他方側の表面に当接する第２搬送面と、個片電極を第２搬送面に吸着させる第２吸着部と、を有し、第２搬送面を搬送方向に移動させることにより個片電極を搬送方向に搬送する第２搬送部と、第２搬送面に対向するように配置され、搬送方向に搬送される個片電極の一方側の表面の画像を撮像する第２撮像部と、を更に備えてもよい。   The electrode cutting device is juxtaposed with the first transport surface so that the end on the upstream side in the transport direction faces the end on the downstream side in the transport direction of the first transport surface and contacts the other surface of the individual electrode. A second conveying surface that contacts the second conveying surface; and a second adsorption unit that adsorbs the individual electrode to the second conveying surface, and moves the second conveying surface in the conveying direction to convey the individual electrode in the conveying direction. You may further provide a 2 conveyance part and the 2nd imaging part which is arrange | positioned so as to oppose a 2nd conveyance surface, and images the surface of the one side of the piece electrode conveyed in a conveyance direction.

この構成によれば、個片電極は、第１搬送面の搬送方向下流側の端部と第２搬送面の搬送方向上流側の端部とが互いに対向する位置で、第１搬送部から第２搬送部へと受け渡される。この際、個片電極が第１搬送面上に支持された状態で、第２搬送面が当該個片電極の他方側の表面を吸着するので、第１搬送部から第２搬送部への個片電極の受け渡しが、当該個片電極の位置ずれが少ない状態で実行される。その結果、第２搬送面に対向するように配置された第２撮像部によって、個片電極の一方側の表面の画像を精度良く取得できる。以上の構成によれば、第１撮像部及び第２撮像部により取得された個片電極の一方側及び他方側の表面の画像に基づいて、個片電極の両面の画像検査を容易且つ精度良く実行することができる。   According to this configuration, the individual electrode is disposed at the position where the end on the downstream side in the transport direction of the first transport surface and the end on the upstream side in the transport direction of the second transport surface face each other from the first transport unit. 2 Delivered to the transport section. At this time, since the second transport surface sucks the surface of the other side of the individual electrode in a state where the individual electrode is supported on the first transport surface, the individual from the first transport unit to the second transport unit. The delivery of the single electrode is performed in a state where the positional deviation of the individual electrode is small. As a result, an image of the surface on one side of the individual electrode can be obtained with high accuracy by the second imaging unit arranged so as to face the second transport surface. According to the above configuration, the image inspection on both sides of the individual electrode is easily and accurately performed based on the images of the surfaces of the individual electrodes obtained by the first imaging unit and the second imaging unit. Can be executed.

本発明の一態様に係る電極検査方法は、長尺の帯状電極を第１搬送部に供給する供給工程と、第１搬送部によって搬送中の帯状電極を切断することにより、帯状電極を個片電極に個片化する切断工程と、切断工程において切断された個片電極の表面の画像を撮像する検査工程と、検査工程における撮像が完了した個片電極を、第１搬送部から当該第１搬送部の後段の第２搬送部に移載する移載工程と、を含む。   In the electrode inspection method according to one aspect of the present invention, a strip electrode is separated into pieces by supplying a long strip electrode to the first transport unit and cutting the strip electrode being transported by the first transport unit. A cutting step for separating the electrodes into individual pieces, an inspection step for picking up an image of the surface of the individual piece electrodes cut in the cutting step, and an individual piece electrode for which imaging in the inspection step has been completed, from the first transport unit to the first And a transfer step of transferring to the second transfer unit at the subsequent stage of the transfer unit.

この電極検査方法では、帯状電極を個片電極に個片化する切断工程と個片電極の表面の画像を撮像する検査工程とが、個片電極が第１搬送部から後段の第２搬送部に移載される前に（すなわち、同一の第１搬送部による搬送過程で）実行される。このように、切断工程及び検査工程を実行することにより、個片電極の位置ずれが少ない状態で当該個片電極の表面画像を精度良く取得することができる。すなわち、搬送される個片電極を整列させるための特別な処理を実行することなく、個片電極の表面画像を精度良く取得することができる。従って、上記電極検査方法によれば、個片電極の画像検査の精度を容易に向上させることができる。   In this electrode inspection method, the cutting step for dividing the strip electrode into individual electrodes and the inspection step for capturing an image of the surface of the individual electrodes are performed by the individual second electrode from the first conveying unit to the second conveying unit at the subsequent stage. This is executed before being transferred to (i.e., in the transfer process by the same first transfer unit). Thus, by performing the cutting process and the inspection process, the surface image of the individual electrode can be obtained with high accuracy in a state where the positional deviation of the individual electrode is small. That is, the surface image of the individual electrodes can be obtained with high accuracy without performing a special process for aligning the individual electrodes to be conveyed. Therefore, according to the electrode inspection method, it is possible to easily improve the accuracy of image inspection of individual electrodes.

本発明によれば、個片電極の画像検査の精度を容易に向上させることができる電極切断装置及び電極検査方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the electrode cutting device and the electrode test | inspection method which can improve the precision of the image test | inspection of an individual electrode easily can be provided.

本発明の一実施形態に係る電極切断装置の全体構成を模式的に示す図である。It is a figure showing typically the whole electrode cutting device composition concerning one embodiment of the present invention. 第１搬送部の搬送面を示す平面図である。It is a top view which shows the conveyance surface of a 1st conveyance part. 図１のIII−III線に沿った帯状電極の断面図である。It is sectional drawing of the strip | belt-shaped electrode along the III-III line of FIG. 図１に示す第１搬送部の搬送面上の領域を上方から見た平面図である。It is the top view which looked at the area | region on the conveyance surface of the 1st conveyance part shown in FIG. 1 from upper direction. 図１に示す第２搬送部の搬送面上の領域を下方から見た平面図である。It is the top view which looked at the area | region on the conveyance surface of the 2nd conveyance part shown in FIG. 1 from the downward direction. 変形例に係る電極切断装置を示す図である。It is a figure which shows the electrode cutting device which concerns on a modification. 比較例に係る画像検査において設定される撮像範囲を示す図である。It is a figure which shows the imaging range set in the image test | inspection which concerns on a comparative example.

以下、図面を参照しながら、本発明の実施形態について詳細に説明する。なお、図面において同一要素には同一符号を付し、重複する説明は省略する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

図１は、本実施形態に係る電極切断装置の全体構成を模式的に示す図である。図１に示す電極切断装置１は、リチウムイオン二次電池等の蓄電装置の製造システムに組み込まれる装置である。具体的には、電極切断装置１は、帯状電極１０を搬送しながら、当該帯状電極１０を予め定められた電極形状に切断することにより個片電極１５に個片化し、当該個片電極１５の表面の画像を画像検査のために撮像する。個片電極１５の例としては、例えば電極組立体を構成する正極又は負極が挙げられる。   FIG. 1 is a diagram schematically showing the overall configuration of the electrode cutting apparatus according to the present embodiment. An electrode cutting apparatus 1 shown in FIG. 1 is an apparatus incorporated in a manufacturing system for a power storage device such as a lithium ion secondary battery. Specifically, the electrode cutting device 1 divides the band-like electrode 10 into predetermined electrode shapes while conveying the band-like electrode 10, thereby dividing the band-like electrode 10 into individual pieces 15. A surface image is taken for image inspection. Examples of the individual electrode 15 include a positive electrode or a negative electrode constituting an electrode assembly.

正極は、例えばアルミニウム箔からなる矩形の金属箔の両面に正極活物質層が形成されてなる。正極活物質層は、正極活物質とバインダとを含んで形成される。正極活物質としては、例えば複合酸化物、金属リチウム、硫黄等が挙げられる。複合酸化物には、例えばマンガン、ニッケル、コバルト及びアルミニウムの少なくとも１つと、リチウムとが含まれる。正極の一縁部には、正極端子との接続に用いられるタブが形成される。   The positive electrode has a positive electrode active material layer formed on both sides of a rectangular metal foil made of, for example, an aluminum foil. The positive electrode active material layer is formed including a positive electrode active material and a binder. Examples of the positive electrode active material include composite oxide, metallic lithium, and sulfur. The composite oxide includes, for example, at least one of manganese, nickel, cobalt, and aluminum and lithium. A tab used for connection with the positive electrode terminal is formed at one edge of the positive electrode.

一方、負極は、例えば銅箔からなる金属箔の両面に負極活物質層が形成されてなる。負極活物質層は、負極活物質とバインダとを含んで形成される。負極活物質としては、例えば黒鉛、高配向性グラファイト、メソカーボンマイクロビーズ、ハードカーボン、ソフトカーボン等のカーボン、リチウム、ナトリウム等のアルカリ金属、金属化合物、ＳｉＯｘ（０．５≦ｘ≦１．５）等の金属酸化物、ホウ素添加炭素等が挙げられる。バインダは、例えば、ポリフッ化ビニリデン、ポリテトラフルオロエチレン、フッ素ゴム等の含フッ素樹脂、ポリプロピレン、ポリエチレン等の熱可塑性樹脂、ポリイミド、ポリアミドイミド等のイミド系樹脂、又はアルコキシシリル基含有樹脂であってよい。負極の一縁部には、負極端子の位置に対応してタブが形成される。正極のタブと負極のタブとは、正極と負極とを重ねた場合に互いに重ならない位置に形成される。   On the other hand, the negative electrode has a negative electrode active material layer formed on both surfaces of a metal foil made of, for example, copper foil. The negative electrode active material layer is formed including a negative electrode active material and a binder. Examples of the negative electrode active material include carbon such as graphite, highly oriented graphite, mesocarbon microbeads, hard carbon, and soft carbon, alkali metals such as lithium and sodium, metal compounds, SiOx (0.5 ≦ x ≦ 1.5 ) And the like, and boron-added carbon. The binder is, for example, a fluorine-containing resin such as polyvinylidene fluoride, polytetrafluoroethylene, or fluororubber, a thermoplastic resin such as polypropylene or polyethylene, an imide resin such as polyimide or polyamideimide, or an alkoxysilyl group-containing resin. Good. A tab is formed on one edge of the negative electrode corresponding to the position of the negative electrode terminal. The positive electrode tab and the negative electrode tab are formed at positions that do not overlap each other when the positive electrode and the negative electrode are stacked.

図１に示すように、電極切断装置１は、第１搬送部２、切断部３、第１撮像部４、第２搬送部５、第２撮像部６、及び第３搬送部７を含んで構成される。図１の例では、電極切断装置１は、水平方向に沿った搬送方向（Ｘ軸方向）に帯状電極１０を搬送しながら個片電極１５に個片化し、個片電極１５の鉛直方向（Ｚ軸方向）上側（他方側）の表面及び鉛直方向下側（一方側）の表面の画像を画像検査のために取得するように構成されている。なお、本実施形態では、帯状電極１０は上述した正極を作成するための母材であり、個片電極１５は正極である場合を例として説明する。   As shown in FIG. 1, the electrode cutting apparatus 1 includes a first transport unit 2, a cutting unit 3, a first imaging unit 4, a second transport unit 5, a second imaging unit 6, and a third transport unit 7. Composed. In the example of FIG. 1, the electrode cutting device 1 is divided into individual electrodes 15 while conveying the strip electrode 10 in the conveying direction (X-axis direction) along the horizontal direction, and the vertical direction (Z An image of the surface on the upper side (the other side) in the axial direction and the surface on the lower side in the vertical direction (one side) is acquired for image inspection. In the present embodiment, the case where the strip electrode 10 is a base material for producing the positive electrode described above and the individual electrode 15 is a positive electrode will be described as an example.

第１搬送部２は、搬送方向に互いに離間して配置されたローラ対２１，２１と、当該ローラ対２１，２１に巻架された無端状の搬送ベルト２２と、を有する。ローラ対２１，２１が回転すると、搬送ベルト２２は連れ回りする。図１の例では、ローラ対２１，２１が図示しない駆動部によって回転駆動力を付与され、時計回りに回転することによって、搬送ベルト２２は、時計回りに循環する。   The first transport unit 2 includes roller pairs 21 and 21 that are spaced apart from each other in the transport direction, and an endless transport belt 22 that is wound around the roller pairs 21 and 21. When the roller pairs 21 and 21 rotate, the conveyor belt 22 rotates. In the example of FIG. 1, the roller pair 21, 21 is given a rotational driving force by a drive unit (not shown) and rotates clockwise, whereby the conveyor belt 22 circulates clockwise.

第１搬送部２は、長尺の帯状電極１０の下面（一方側の表面）１０ｂに当接して帯状電極１０を支持する搬送面（第１搬送面）２２ａを有する。具体的には、ローラ対２１，２１によって循環させられる搬送ベルト２２の搬送方向に移動する部分の上面が、搬送面２２ａとして機能する。第１搬送部２は、ローラ対２１，２１の回転によって搬送ベルト２２を循環させ、搬送面２２ａを搬送方向に移動させることにより、帯状電極１０を所定の搬送速度で搬送方向に搬送する。   The 1st conveyance part 2 has the conveyance surface (1st conveyance surface) 22a which contact | abuts the lower surface (one surface) 10b of the elongate strip electrode 10, and supports the strip electrode 10. As shown in FIG. Specifically, the upper surface of the portion of the conveyor belt 22 that is circulated by the roller pair 21 and 21 that moves in the conveyance direction functions as the conveyance surface 22a. The first transport unit 2 circulates the transport belt 22 by the rotation of the roller pairs 21 and 21 and moves the transport surface 22a in the transport direction, thereby transporting the strip electrode 10 in the transport direction at a predetermined transport speed.

図２に示すように、搬送ベルト２２は、外側表面から内側表面にかけて貫通する複数の貫通孔２２ｂを有するスチールベルトである。複数の貫通孔２２ｂは、搬送ベルト２２の長手方向（搬送方向と同じＸ軸方向）及び幅方向（Ｘ軸方向及びＺ軸方向に直交するＹ軸方向）のそれぞれで等間隔に設けられた断面円形の通気孔である。図２の例では、搬送ベルト２２の幅方向に、４つの貫通孔２２ｂが配置されている。ただし、搬送ベルト２２は、スチールベルト以外でもよい。また、貫通孔２２ｂの大きさ、形状、個数はこの例に限られない。また、貫通孔２２ｂのピッチは、等間隔でなくてもよい。特に、貫通孔２２ｂの配置については、貫通孔２２ｂは、帯状電極１０又は個片電極１５が重なる領域にのみ設けられてもよい。   As shown in FIG. 2, the conveyance belt 22 is a steel belt having a plurality of through holes 22b penetrating from the outer surface to the inner surface. The plurality of through holes 22b are cross sections provided at equal intervals in the longitudinal direction (the same X-axis direction as the transport direction) and the width direction (the Y-axis direction orthogonal to the X-axis direction and the Z-axis direction) of the transport belt 22. A circular vent. In the example of FIG. 2, four through holes 22 b are arranged in the width direction of the conveyor belt 22. However, the conveyance belt 22 may be other than the steel belt. Further, the size, shape, and number of the through holes 22b are not limited to this example. Moreover, the pitch of the through holes 22b may not be equal. In particular, regarding the arrangement of the through-holes 22b, the through-holes 22b may be provided only in the region where the strip electrode 10 or the individual electrode 15 overlaps.

搬送ベルト２２の内側であって搬送面２２ａの下方の部分には、吸着部（第１吸着部）２３が設けられている。吸着部２３は、例えば、搬送面２２ａ上の空間に貫通孔２２ｂを介して連通する閉空間を形成するダクトと、当該ダクト内の空間を負圧にするバキュープポンプや負圧ファン等の所定の減圧手段とによって構成される。吸着部２３は、所定の減圧手段によってダクト内の空間を負圧にすることにより、搬送面２２ａ上に載置される被搬送物（すなわち、帯状電極１０及び後述する切断部３によって個片化された個片電極１５）を搬送面２２ａに吸着させる。これにより、帯状電極１０及び個片電極１５が搬送面２２ａに位置決めされ、帯状電極１０及び個片電極１５の両方の位置ずれの発生が抑制される。   An adsorption portion (first adsorption portion) 23 is provided inside the conveyance belt 22 and below the conveyance surface 22a. For example, the adsorbing unit 23 includes a duct that forms a closed space communicating with the space on the conveyance surface 22a via the through hole 22b, and a vacuum pump, a negative pressure fan, and the like that make the space in the duct a negative pressure. Pressure reducing means. The suction part 23 is separated into pieces to be transported (that is, the strip electrode 10 and the cutting part 3 described later) placed on the transport surface 22a by making the space in the duct a negative pressure by a predetermined decompression means. The individual electrode 15) thus made is adsorbed to the transport surface 22a. Thereby, the strip | belt-shaped electrode 10 and the piece electrode 15 are positioned by the conveyance surface 22a, and generation | occurrence | production of the position shift of both the strip | belt-shaped electrode 10 and the piece electrode 15 is suppressed.

図３に示すように、帯状電極１０は、個片電極１５（本実施形態では上述の通り正極）の材料となる長尺の金属箔１１の両面に予め正極活物質層１２，１３が塗工された母材である。正極活物質層１２は、金属箔１１の上面１１ａに塗工された層である。正極活物質層１２の上面１２ａは、搬送面２２ａ上において鉛直上方を向いて露出する面であり、帯状電極１０の上面１０ａに相当する。一方、正極活物質層１３は、金属箔１１の下面１１ｂに塗工された層である。正極活物質層１３の下面１３ａは、鉛直下方を向いて搬送面２２ａに支持される面であり、帯状電極１０の下面１０ｂに相当する。   As shown in FIG. 3, the strip electrode 10 has positive electrode active material layers 12 and 13 applied in advance on both surfaces of a long metal foil 11 which is a material of an individual electrode 15 (in the present embodiment, the positive electrode as described above). The base material that was made. The positive electrode active material layer 12 is a layer coated on the upper surface 11 a of the metal foil 11. The upper surface 12 a of the positive electrode active material layer 12 is a surface that is exposed vertically upward on the transport surface 22 a and corresponds to the upper surface 10 a of the strip electrode 10. On the other hand, the positive electrode active material layer 13 is a layer coated on the lower surface 11 b of the metal foil 11. The lower surface 13 a of the positive electrode active material layer 13 is a surface that is vertically supported and supported by the transport surface 22 a and corresponds to the lower surface 10 b of the strip electrode 10.

図３及び図４に示すように、帯状電極１０において個片電極１５のタブＴ及びタブＴ側の縁部に対応する部分（すなわち帯状電極１０が後述する切断部３によって打ち抜かれることによって個片電極１５のタブＴ及びタブＴ側の縁部が形成される部分）には、正極活物質層１２，１３は塗工されておらず、金属箔１１が露出した状態となっている。帯状電極１０は、例えばロール状に巻かれて所定のリールにセットされており、当該リールから第１搬送部２に供給される。図４に示すように、第１搬送部２に供給される帯状電極１０は、当該帯状電極１０の長手方向が搬送方向に平行になるように、搬送面２２ａ上の予め定められた幅位置（Ｙ軸方向における予め定められた位置）に載置される。   As shown in FIGS. 3 and 4, in the strip electrode 10, the portion corresponding to the tab T and the edge on the tab T side of the strip electrode 15 (that is, the strip electrode 10 is punched by a cutting portion 3 described later to separate the strip electrode 10). The positive electrode active material layers 12 and 13 are not coated on the tab T of the electrode 15 and the portion where the tab T side edge is formed, and the metal foil 11 is exposed. The strip electrode 10 is wound, for example, in a roll shape and set on a predetermined reel, and is supplied from the reel to the first transport unit 2. As shown in FIG. 4, the strip electrode 10 supplied to the first transport unit 2 has a predetermined width position (on the transport surface 22 a) such that the longitudinal direction of the strip electrode 10 is parallel to the transport direction ( (Predetermined position in the Y-axis direction).

切断部３は、第１搬送部２によって搬送中の帯状電極１０を切断することにより、帯状電極１０を個片電極１５に個片化する加工装置である。本実施形態では一例として、切断部３は、レーザＬを帯状電極１０に照射することにより帯状電極１０の切断加工を実行する装置である。ただし、帯状電極１０の切断加工は、レーザによる切断に限られず、例えば金型を用いた打ち抜き加工等であってもよい。   The cutting unit 3 is a processing device that separates the strip electrode 10 into individual electrodes 15 by cutting the strip electrode 10 being transported by the first transport unit 2. In the present embodiment, as an example, the cutting unit 3 is an apparatus that performs cutting processing of the strip electrode 10 by irradiating the strip electrode 10 with the laser L. However, the cutting of the strip electrode 10 is not limited to laser cutting, and may be, for example, punching using a mold.

切断部３は、搬送面２２ａの上方の所定の移動可能範囲内において、Ｘ軸方向及びＹ軸方向の各々に移動可能に構成されている。図４に示すように、切断部３は、予めプログラムされた所定の移動パターンでＸ軸方向及びＹ軸方向に移動することにより、レーザＬの照射位置Ｐを移動させる。これにより、切断部３は、帯状電極１０を所定の切断パターンで切断し、個片電極１５を得る。   The cutting unit 3 is configured to be movable in each of the X-axis direction and the Y-axis direction within a predetermined movable range above the transport surface 22a. As shown in FIG. 4, the cutting unit 3 moves the irradiation position P of the laser L by moving in the X-axis direction and the Y-axis direction with a predetermined movement pattern programmed in advance. Thereby, the cutting part 3 cuts the strip electrode 10 with a predetermined cutting pattern to obtain the individual electrode 15.

より具体的には、切断部３は、第１搬送部２の搬送速度と等速度でＸ軸方向に移動しつつ、所定の速度でＹ軸方向に移動することにより、帯状電極１０の幅方向に沿って帯状電極１０を切断することができる。また、切断部３は、Ｙ軸方向における所定の位置にレーザＬの照射位置Ｐを固定することにより、帯状電極１０の長手方向に沿って帯状電極１０を切断することができる。従って、切断部３は、例えば、個片電極１５の形状及び第１搬送部２の搬送速度等に応じて予め決定される動作パターンに基づいてレーザＬの照射位置Ｐを移動させることにより、帯状電極１０から個片電極１５を切り抜くことができる（図４参照）。また、切断部３は、１つの個片電極１５を切り抜く際の動作パターンを繰り返し実行することにより、図４に示すように、複数の個片電極１５が連続して整列するように切断加工を実行する。   More specifically, the cutting unit 3 moves in the X-axis direction at a predetermined speed while moving in the X-axis direction at the same speed as the transport speed of the first transport unit 2, thereby moving the strip electrode 10 in the width direction. The strip electrode 10 can be cut along the line. Moreover, the cutting part 3 can cut | disconnect the strip | belt-shaped electrode 10 along the longitudinal direction of the strip | belt-shaped electrode 10 by fixing the irradiation position P of the laser L to the predetermined position in the Y-axis direction. Therefore, for example, the cutting unit 3 moves the irradiation position P of the laser L on the basis of an operation pattern determined in advance according to the shape of the individual electrode 15 and the conveyance speed of the first conveyance unit 2. The individual electrode 15 can be cut out from the electrode 10 (see FIG. 4). Further, the cutting unit 3 repeatedly performs an operation pattern when cutting out one individual electrode 15 to perform a cutting process so that a plurality of individual electrodes 15 are continuously aligned as shown in FIG. Run.

第１撮像部４は、切断部３よりも搬送方向下流側において搬送面２２ａに対向するように配置され、搬送方向に搬送される個片電極１５の上面１５ａ（他方側の表面）の画像を撮像する。ここで、個片電極１５の上面１５ａとは、個片電極１５を構成する金属箔１１の上面１１ａ及び正極活物質層１２の上面１２ａのうち鉛直上方に露出する部分である。   The first imaging unit 4 is disposed so as to face the transport surface 22a on the downstream side in the transport direction with respect to the cutting unit 3, and an image of the upper surface 15a (the other surface) of the individual electrode 15 transported in the transport direction. Take an image. Here, the upper surface 15 a of the individual electrode 15 is a portion exposed vertically upward of the upper surface 11 a of the metal foil 11 and the upper surface 12 a of the positive electrode active material layer 12 constituting the individual electrode 15.

第１撮像部４は、例えば、切断部３よりも搬送方向下流側の所定位置において、レンズ部分が搬送面２２ａに対向するように固定されたカメラである。第１撮像部４は、帯状電極１０が搬送面２２ａ上に載置される幅位置及び個片電極１５の幅（搬送方向における長さ）等のパラメータ情報を事前に取得している。第１撮像部４は、これらのパラメータ情報に基づいて、個片電極１５のサイズに合った大きさの撮像範囲Ｒ１の画像を撮像するように予め設定されている。また、第１撮像部４は、例えば第１搬送部２の搬送速度や切断部３による切断動作が開始された時点等の情報に基づいて、切断部３によって個片化された個片電極１５が撮像範囲Ｒ１に丁度収まるタイミングを把握する。そして、第１撮像部４は、このようにして把握されたタイミングで撮像範囲Ｒ１の画像を撮像することにより、第１搬送部２によって順次搬送される個片電極１５の上面１５ａの画像を得ることができる。   The first imaging unit 4 is, for example, a camera that is fixed so that the lens portion faces the conveyance surface 22a at a predetermined position downstream of the cutting unit 3 in the conveyance direction. The first imaging unit 4 acquires in advance parameter information such as the width position where the strip electrode 10 is placed on the transport surface 22a and the width of the individual electrode 15 (length in the transport direction). The first imaging unit 4 is set in advance so as to capture an image of the imaging range R1 having a size that matches the size of the individual electrode 15 based on the parameter information. In addition, the first imaging unit 4, for example, the individual electrode 15 separated by the cutting unit 3 based on information such as the conveyance speed of the first conveyance unit 2 and the time when the cutting operation by the cutting unit 3 is started. Grasps the timing when the image is just within the imaging range R1. And the 1st imaging part 4 obtains the image of the upper surface 15a of the piece electrode 15 sequentially conveyed by the 1st conveyance part 2 by imaging the image of imaging range R1 at the timing grasped | ascertained in this way. be able to.

第１搬送部２により搬送される個片電極１５は、後述する第２搬送部５に受け渡される。一方、帯状電極１０のうち個片電極１５を形成しない領域部分（本実施形態では、金属箔１１の一部）は、図示しない巻取機構によって巻き取り回収され、第２搬送部５には受け渡されないようになっている。   The individual electrodes 15 transported by the first transport unit 2 are transferred to the second transport unit 5 described later. On the other hand, a region of the strip electrode 10 where the individual electrode 15 is not formed (in this embodiment, a part of the metal foil 11) is wound and collected by a winding mechanism (not shown) and received by the second transport unit 5. It is not passed.

第２搬送部５は、搬送方向に互いに離間して配置されたローラ対５１，５１と、当該ローラ対５１，５１に巻架された無端状の搬送ベルト５２と、を有する。ローラ対５１，５１が回転すると、搬送ベルト５２は連れ回りする。図１の例では、ローラ対５１，５１が図示しない駆動部によって回転駆動力を付与され、反時計回りに回転することによって、搬送ベルト５２は、反時計回りに循環する。   The second transport unit 5 includes a pair of rollers 51 and 51 that are spaced apart from each other in the transport direction, and an endless transport belt 52 that is wound around the pair of rollers 51 and 51. When the roller pair 51, 51 rotates, the conveyor belt 52 rotates. In the example of FIG. 1, the roller pair 51, 51 is given a rotational driving force by a drive unit (not shown) and rotates counterclockwise, whereby the conveyor belt 52 circulates counterclockwise.

第２搬送部５は、搬送方向上流側の端部５２ｃが第１搬送部２の搬送面２２ａの搬送方向下流側の端部２２ｃに対向するように搬送面２２ａと並設される搬送面（第２搬送面）５２ａを有する。具体的には、ローラ対５１，５１によって循環させられる搬送ベルト５２の搬送方向に移動する部分の下面が、搬送面５２ａとして機能する。第２搬送部５は、ローラ対５１，５１の回転によって搬送ベルト５２を循環させ、搬送面５２ａを搬送方向に移動させることにより、第１搬送部２から受け渡された個片電極１５を所定の搬送速度で搬送方向に搬送する（第１搬送部２から第２搬送部５への個片電極１５の受け渡しについては後述する）。   The second transport unit 5 includes a transport surface that is arranged in parallel with the transport surface 22a such that the end 52c on the upstream side in the transport direction faces the end 22c on the downstream side in the transport direction of the transport surface 22a of the first transport unit 2. (Second transport surface) 52a. Specifically, the lower surface of the portion that moves in the transport direction of the transport belt 52 circulated by the roller pair 51, 51 functions as the transport surface 52a. The second transport unit 5 circulates the transport belt 52 by the rotation of the roller pairs 51 and 51, and moves the transport surface 52a in the transport direction, so that the individual electrode 15 delivered from the first transport unit 2 is predetermined. (The transfer of the individual electrode 15 from the first transport unit 2 to the second transport unit 5 will be described later).

搬送ベルト５２は、搬送ベルト２２と同様に、外側表面から内側表面にかけて貫通する複数の貫通孔５２ｂを有するスチールベルトである。搬送ベルト５２の内側であって搬送面５２ａの上方の部分には、吸着部（第２吸着部）５３が設けられている。吸着部５３は、吸着部２３と同様に、例えば、搬送面５２ａの下方の空間に貫通孔５２ｂを介して連通する閉空間を形成するダクトと、当該ダクト内の空間を負圧にするバキュープポンプや負圧ファン等の所定の減圧手段とによって構成される。吸着部５３は、所定の減圧手段によってダクト内の空間を負圧にすることにより、搬送面５２ａに当接する被搬送物（すなわち、個片電極１５）を搬送面５２ａに吸着させる。   Similar to the conveyor belt 22, the conveyor belt 52 is a steel belt having a plurality of through holes 52 b that penetrate from the outer surface to the inner surface. A suction part (second suction part) 53 is provided inside the transport belt 52 and above the transport surface 52a. Similar to the suction unit 23, the suction unit 53 includes, for example, a duct that forms a closed space communicating with the space below the conveyance surface 52 a through the through hole 52 b, and a vacuum that creates a negative pressure in the space in the duct. It is comprised with predetermined pressure reduction means, such as a pump and a negative pressure fan. The adsorbing part 53 adsorbs the object to be conveyed (that is, the individual electrode 15) in contact with the conveying surface 52a to the conveying surface 52a by setting the space in the duct to a negative pressure by a predetermined pressure reducing means.

搬送面５２ａの搬送方向上流側の端部５２ｃと搬送面２２ａの搬送方向下流側の端部２２ｃとは、鉛直方向における両側から個片電極１５の上面１５ａ及び下面１５ｂを挟み込むように配置されている。ここで、個片電極１５の下面１５ｂとは、個片電極１５を構成する金属箔１１の下面１１ｂ及び正極活物質層１３の下面１３ａのうち鉛直下方に露出する部分である。従って、搬送面５２ａの端部５２ｃと搬送面２２ａの端部２２ｃとが互いに対向する部分においては、個片電極１５は、搬送面２２ａ及び搬送面５２ａの両方に吸着される。   An end 52c on the upstream side in the transport direction of the transport surface 52a and an end 22c on the downstream side in the transport direction of the transport surface 22a are arranged so as to sandwich the upper surface 15a and the lower surface 15b of the individual electrode 15 from both sides in the vertical direction. Yes. Here, the lower surface 15 b of the individual electrode 15 is a portion exposed vertically downward of the lower surface 11 b of the metal foil 11 and the lower surface 13 a of the positive electrode active material layer 13 that constitute the individual electrode 15. Accordingly, in the portion where the end 52c of the transport surface 52a and the end 22c of the transport surface 22a face each other, the individual electrode 15 is attracted to both the transport surface 22a and the transport surface 52a.

第２搬送部５によって個片電極１５が搬送方向に更に搬送され、個片電極１５の下面１５ｂが搬送面２２ａ上から離れると、個片電極１５は、搬送面５２ａに上面１５ａを吸着されながら、下面１５ｂを鉛直下方に露出した状態で、搬送方向に搬送される。このように、個片電極１５が第１搬送部２の搬送面２２ａ上に支持された状態で、搬送面５２ａが当該個片電極１５の上面１５ａに当接して吸着するので、第１搬送部２から第２搬送部５への個片電極１５の受け渡しが、当該個片電極１５の位置ずれが少ない状態で実行される。   When the individual electrode 15 is further conveyed in the conveying direction by the second conveying unit 5 and the lower surface 15b of the individual electrode 15 is separated from the conveying surface 22a, the individual electrode 15 is attracted to the conveying surface 52a while the upper surface 15a is adsorbed. In the state where the lower surface 15b is exposed vertically downward, it is transported in the transport direction. In this way, since the individual electrode 15 is supported on the conveyance surface 22a of the first conveyance unit 2 and the conveyance surface 52a is in contact with and adsorbs the upper surface 15a of the individual electrode 15, the first conveyance unit The transfer of the individual electrode 15 from 2 to the second transport unit 5 is executed in a state where the positional deviation of the individual electrode 15 is small.

第２撮像部６は、搬送面５２ａに対向するように配置され、搬送方向に搬送される個片電極１５の下面１５ｂ（一方側の表面）の画像を撮像する。   The second imaging unit 6 is disposed so as to face the transport surface 52a, and captures an image of the lower surface 15b (one surface) of the individual electrode 15 transported in the transport direction.

第２撮像部６は、例えば、搬送面５２ａの端部５２ｃと搬送面２２ａの端部２２ｃとが互いに対向する部分よりも搬送方向下流側の所定位置において、レンズ部分が搬送面５２ａに対向するように固定されたカメラである。第２撮像部６は、個片電極１５が搬送面５２ａに吸着される幅位置及び個片電極１５の幅等のパラメータ情報を事前に取得している。図５に示すように、第２撮像部６は、これらのパラメータ情報に基づいて、個片電極１５のサイズに合った大きさの撮像範囲Ｒ２の画像を撮像するように予め設定されている。また、第２撮像部６は、例えば、第１撮像部４による撮像タイミング、個片電極１５の搬送速度（第１搬送部２及び第２搬送部５に共通の搬送速度）、撮像範囲Ｒ１から撮像範囲Ｒ２までの距離等の情報に基づいて、個片電極１５が撮像範囲Ｒ２に丁度収まるタイミングを把握する。そして、第２撮像部６は、このようにして把握されたタイミングで撮像範囲Ｒ２の画像を撮像することにより、第２搬送部５によって順次搬送される個片電極１５の下面１５ｂの画像を得ることができる。   In the second imaging unit 6, for example, the lens portion faces the conveyance surface 52 a at a predetermined position downstream in the conveyance direction from the portion where the end 52 c of the conveyance surface 52 a and the end 22 c of the conveyance surface 22 a face each other. Is a fixed camera. The second imaging unit 6 acquires in advance parameter information such as the width position at which the individual electrode 15 is attracted to the transport surface 52 a and the width of the individual electrode 15. As shown in FIG. 5, the second imaging unit 6 is set in advance to capture an image of the imaging range R2 having a size that matches the size of the individual electrode 15 based on these parameter information. In addition, the second imaging unit 6 includes, for example, an imaging timing by the first imaging unit 4, a conveyance speed of the individual electrode 15 (a conveyance speed common to the first conveyance unit 2 and the second conveyance unit 5), and an imaging range R1. Based on information such as the distance to the imaging range R2, the timing at which the individual electrode 15 is exactly within the imaging range R2 is grasped. Then, the second imaging unit 6 obtains an image of the lower surface 15b of the individual electrodes 15 sequentially conveyed by the second conveyance unit 5 by imaging the image of the imaging range R2 at the timing grasped in this way. be able to.

第２搬送部５によって搬送される個片電極１５は、第２搬送部５の搬送方向下流側の端部５２ｄにおいて、第２搬送部５の搬送方向下流側に配置された第３搬送部７に受け渡され、次工程へと搬送される。第３搬送部７は、搬送方向に互いに離間して配置されたローラ対７１，７１と、当該ローラ対７１，７１に巻架された無端状の搬送ベルト７２と、を有する。ローラ対７１，７１が回転すると、搬送ベルト７２は連れ回りする。図１の例では、ローラ対７１，７１が図示しない駆動部によって回転駆動力を付与され、時計回りに回転することによって、搬送ベルト７２は、時計回りに循環する。   The individual electrodes 15 transported by the second transport unit 5 are arranged at the downstream end 52 d of the second transport unit 5 in the transport direction, and are disposed on the downstream side of the second transport unit 5 in the transport direction. To the next process. The third transport unit 7 includes roller pairs 71 and 71 that are spaced apart from each other in the transport direction, and an endless transport belt 72 that is wound around the roller pairs 71 and 71. When the roller pair 71, 71 rotates, the conveyor belt 72 is rotated. In the example of FIG. 1, the roller pair 71, 71 is given a rotational driving force by a driving unit (not shown) and rotates clockwise, whereby the conveyor belt 72 circulates clockwise.

第３搬送部７は、搬送方向上流側の端部７２ｂが第２搬送部５の搬送面５２ａの搬送方向下流側の端部５２ｄに対向するように搬送面５２ａと並設される搬送面７２ａを有する。具体的には、ローラ対７１，７１によって循環させられる搬送ベルト７２の搬送方向に移動する部分の上面が、搬送面７２ａとして機能する。第３搬送部７は、ローラ対７１，７１の回転によって搬送ベルト７２を循環させ、搬送面７２ａを搬送方向に移動させることにより、第２搬送部５から受け渡される個片電極１５を所定の搬送速度で搬送方向に搬送する。これにより、個片電極１５は、上面１５ａが搬送面５２ａに吸着されて下面１５ｂが鉛直下方に露出する状態から、下面１５ｂが搬送面７２ａに支持されて上面１５ａが露出する状態へと変化する。   The third transport unit 7 includes a transport surface 72a that is arranged in parallel with the transport surface 52a so that the end 72b on the upstream side in the transport direction faces the end 52d on the downstream side in the transport direction of the transport surface 52a of the second transport unit 5. Have Specifically, the upper surface of the portion of the conveyance belt 72 that is circulated by the roller pairs 71 and 71 that moves in the conveyance direction functions as the conveyance surface 72a. The third transport unit 7 circulates the transport belt 72 by the rotation of the roller pairs 71 and 71, and moves the transport surface 72a in the transport direction, whereby the individual electrode 15 delivered from the second transport unit 5 is transferred to a predetermined state. Transport in the transport direction at the transport speed. Thereby, the individual electrode 15 changes from a state in which the upper surface 15a is attracted to the transport surface 52a and the lower surface 15b is exposed vertically downward to a state in which the lower surface 15b is supported by the transport surface 72a and the upper surface 15a is exposed. .

なお、第１撮像部４及び第２撮像部６によって撮像された個片電極１５の上面１５ａ及び下面１５ｂの表面画像に対する画像検査によって不良と判定された個片電極１５は、例えば第３搬送部７上の所定位置（或いは第３搬送部７よりも下流側の搬送装置上）で取り除かれてもよい。これにより、不良と判定された個片電極１５が後続の製造工程（例えば積層工程）において電極組立体の一部として混入してしまうことを防ぎ、最終製品段階での不具合の発生率を下げることができる。   In addition, the individual electrode 15 determined to be defective by the image inspection on the surface images of the upper surface 15a and the lower surface 15b of the individual electrode 15 imaged by the first imaging unit 4 and the second imaging unit 6 is, for example, the third transport unit. 7 may be removed at a predetermined position (or on a transport device downstream of the third transport unit 7). This prevents the individual electrodes 15 determined to be defective from being mixed as part of the electrode assembly in the subsequent manufacturing process (for example, the lamination process), and reduces the occurrence rate of defects at the final product stage. Can do.

以上述べた電極切断装置１では、帯状電極１０の下面１０ｂが搬送面２２ａに当接した状態で搬送される最中に、切断部３が帯状電極１０を切断して個片電極１５に個片化し、第１撮像部４が当該個片電極１５の上面１５ａの画像を撮像する。すなわち、帯状電極１０の切断と個片電極１５の上面１５ａの画像の取得とが、同一の第１搬送部２による搬送過程で実行される。このように、切断部３及び第１撮像部４を配置することにより、個片電極１５の位置ずれが少ない状態で当該個片電極１５の表面画像（上面１５ａの画像）を精度良く取得することができる。すなわち、搬送される個片電極１５を整列させるための特別な処理を実行することなく、個片電極１５の表面画像を精度良く取得することができる。   In the electrode cutting apparatus 1 described above, the cutting unit 3 cuts the band-like electrode 10 to be separated into individual pieces 15 while being conveyed while the lower surface 10b of the band-like electrode 10 is in contact with the conveyance surface 22a. The first imaging unit 4 captures an image of the upper surface 15a of the individual electrode 15. That is, the cutting of the strip electrode 10 and the acquisition of the image of the upper surface 15 a of the individual electrode 15 are executed in the transport process by the same first transport unit 2. As described above, by disposing the cutting unit 3 and the first imaging unit 4, the surface image (image of the upper surface 15 a) of the individual electrode 15 can be accurately obtained in a state where the positional deviation of the individual electrode 15 is small. Can do. That is, the surface image of the individual electrode 15 can be obtained with high accuracy without performing a special process for aligning the individual electrodes 15 being conveyed.

具体的には、第１撮像部４による撮像範囲を個片電極１５の位置ずれを考慮して余裕を持った大きさに設定する必要がなく、個片電極１５のサイズに合った撮像範囲Ｒ１とすることができる。ここで、「個片電極１５のサイズに合った撮像範囲Ｒ１」とは、位置ずれを考慮した余裕幅が少なく、なるべく個片電極１５の全体がぎりぎり収まるような大きさの撮像範囲のことを意味する。これにより、検査対象となる個片電極１５の上面１５ａ部分の画素数が多く、検査対象となる領域の解像度が高い画像を得ることが可能となる。従って、電極切断装置１によれば、個片電極１５の画像検査の精度を容易に向上させることができる。   Specifically, it is not necessary to set the imaging range by the first imaging unit 4 to have a sufficient size in consideration of the positional deviation of the individual electrode 15, and the imaging range R <b> 1 that matches the size of the individual electrode 15. It can be. Here, the “imaging range R1 that matches the size of the individual electrode 15” refers to an imaging range that has a margin that takes into account the positional deviation and is small enough to fit the entire individual electrode 15 as much as possible. means. As a result, it is possible to obtain an image having a large number of pixels on the upper surface 15a of the individual electrode 15 to be inspected and having a high resolution in the area to be inspected. Therefore, according to the electrode cutting device 1, the accuracy of the image inspection of the individual electrode 15 can be easily improved.

また、電極切断装置１では、第１搬送部２は、帯状電極１０及び個片電極１５を搬送面２２ａに吸着させる吸着部２３を有している。この構成により、帯状電極１０及び当該帯状電極１０から個片化された個片電極１５を搬送面２２ａに対して適切に位置決めすることができる。これにより、切断部３の切断動作による個片電極１５の位置ずれを極小化でき、個片電極１５の表面画像（上面１５ａの画像）をより精度良く取得することができる。その結果、個片電極１５の画像検査の精度をより向上させることができる。   Moreover, in the electrode cutting device 1, the 1st conveyance part 2 has the adsorption | suction part 23 which adsorb | sucks the strip | belt-shaped electrode 10 and the piece electrode 15 to the conveyance surface 22a. With this configuration, the strip electrode 10 and the individual electrode 15 separated from the strip electrode 10 can be appropriately positioned with respect to the transport surface 22a. Thereby, the position shift of the individual electrode 15 due to the cutting operation of the cutting unit 3 can be minimized, and the surface image (image of the upper surface 15a) of the individual electrode 15 can be acquired with higher accuracy. As a result, the accuracy of the image inspection of the individual electrode 15 can be further improved.

ただし、第１搬送部２は、必ずしも吸着部２３を有する必要はなく、第１搬送部２は、帯状電極１０及び個片電極１５を吸着搬送しなくてもよい。このような場合であっても、帯状電極１０の切断と個片電極１５の上面１５ａの画像の取得とが同一の第１搬送部２による搬送過程で実行されることにより、個片電極１５の位置ずれの影響が少ない状態で個片電極１５の表面画像を取得することができる。   However, the 1st conveyance part 2 does not necessarily need to have the adsorption | suction part 23, and the 1st conveyance part 2 does not need to adsorb and convey the strip | belt-shaped electrode 10 and the piece electrode 15. FIG. Even in such a case, the cutting of the strip electrode 10 and the acquisition of the image of the upper surface 15a of the individual electrode 15 are performed in the conveyance process by the same first conveyance unit 2, so that the individual electrode 15 The surface image of the individual electrode 15 can be acquired in a state where the influence of the positional deviation is small.

また、電極切断装置１は、上述した構成の第２搬送部５及び第２撮像部６を更に備える。この構成により、個片電極１５は、搬送面２２ａの搬送方向下流側の端部２２ｃと搬送面５２ａの搬送方向上流側の端部５２ｃとが互いに対向する位置で、第１搬送部２から第２搬送部５へと受け渡される。この際、個片電極１５が第１搬送部２の搬送面２２ａ上に支持された状態で、搬送面５２ａが当該個片電極１５の上面１５ａを吸着するので、第１搬送部２から第２搬送部５への個片電極１５の受け渡しが、当該個片電極１５の位置ずれが少ない状態で実行される。その結果、搬送面５２ａに対向するように配置された第２撮像部６によって、個片電極１５の下面１５ｂの画像を精度良く取得できる。具体的には、第２撮像部６による撮像範囲を個片電極１５の位置ずれを考慮して余裕を持った大きさに設定する必要がなく、個片電極１５のサイズに合った撮像範囲Ｒ２とすることができる。これにより、検査対象となる個片電極１５の下面１５ｂ部分の画素数がなるべく多く、検査対象となる領域の解像度が高い画像を得ることが可能となる。以上の構成により、第１撮像部４及び第２撮像部６により取得された個片電極１５の上面１５ａ及び下面１５ｂの表面の画像に基づいて、個片電極１５の両面の画像検査を容易且つ精度良く実行することができる。   The electrode cutting device 1 further includes the second transport unit 5 and the second imaging unit 6 configured as described above. With this configuration, the individual electrode 15 is arranged so that the end 22c on the downstream side in the transport direction of the transport surface 22a and the end 52c on the upstream side in the transport direction of the transport surface 52a face each other from the first transport unit 2 to the first. 2 Delivered to the transport unit 5. At this time, the transport surface 52a attracts the upper surface 15a of the individual electrode 15 in a state where the individual electrode 15 is supported on the transport surface 22a of the first transport unit 2, so that the first transport unit 2 to the second Delivery of the individual electrode 15 to the transport unit 5 is executed in a state where the positional deviation of the individual electrode 15 is small. As a result, the image of the lower surface 15b of the individual electrode 15 can be obtained with high accuracy by the second imaging unit 6 disposed so as to face the transport surface 52a. Specifically, it is not necessary to set the imaging range by the second imaging unit 6 to have a sufficient size in consideration of the positional deviation of the individual electrode 15, and the imaging range R <b> 2 that matches the size of the individual electrode 15. It can be. As a result, it is possible to obtain an image in which the number of pixels on the lower surface 15b portion of the individual electrode 15 to be inspected is as large as possible and the resolution of the region to be inspected is high. With the above configuration, based on the images of the surfaces of the upper surface 15a and the lower surface 15b of the individual electrode 15 acquired by the first imaging unit 4 and the second imaging unit 6, image inspection on both sides of the individual electrode 15 can be performed easily and It can be executed with high accuracy.

次に、上述した電極切断装置１の動作について、電極検査方法としての観点から説明する。まず、長尺の帯状電極１０が第１搬送部２に供給される（供給工程）。続いて、切断部３が、第１搬送部２によって搬送中の帯状電極１０を切断することにより、帯状電極１０を個片電極１５に個片化する（切断工程）。続いて、第１撮像部４が、切断工程において切断された個片電極１５の表面（本実施形態では、個片電極１５の上面１５ａ）の画像を撮像する（検査工程）。続いて、検査工程における撮像が完了した個片電極１５は、第１搬送部２から第１搬送部２の後段の第２搬送部５へと移載される（移載工程）。   Next, operation | movement of the electrode cutting device 1 mentioned above is demonstrated from a viewpoint as an electrode test | inspection method. First, the elongate strip electrode 10 is supplied to the 1st conveyance part 2 (supply process). Subsequently, the cutting unit 3 cuts the strip electrode 10 being transported by the first transport unit 2, thereby dividing the strip electrode 10 into individual electrodes 15 (cutting step). Subsequently, the first imaging unit 4 captures an image of the surface of the individual electrode 15 cut in the cutting process (in this embodiment, the upper surface 15a of the individual electrode 15) (inspection process). Subsequently, the individual electrode 15 that has been imaged in the inspection process is transferred from the first transfer unit 2 to the second transfer unit 5 subsequent to the first transfer unit 2 (transfer process).

上記電極検査方法では、帯状電極１０を個片電極１５に個片化する切断工程と個片電極１５の表面（上面１５ａ）の画像を撮像する検査工程とが、個片電極１５が第１搬送部２から後段の第２搬送部５に移載される前に（すなわち、同一の第１搬送部２による搬送過程で）実行される。このように、切断工程及び検査工程を実行することにより、個片電極１５の位置ずれが少ない状態で当該個片電極１５の表面画像を精度良く取得することができる。すなわち、搬送される個片電極１５を整列させるための特別な処理を実行することなく、個片電極１５の表面画像を精度良く取得することができる。従って、上記電極検査方法によれば、個片電極１５の画像検査の精度を容易に向上させることができる。   In the above-described electrode inspection method, the individual electrode 15 includes the cutting process for dividing the strip electrode 10 into the individual electrodes 15 and the inspection process for capturing an image of the surface (upper surface 15a) of the individual electrodes 15. It is executed before being transferred from the unit 2 to the second transport unit 5 in the subsequent stage (that is, in the transport process by the same first transport unit 2). As described above, by performing the cutting process and the inspection process, the surface image of the individual electrode 15 can be obtained with high accuracy in a state where the positional deviation of the individual electrode 15 is small. That is, the surface image of the individual electrode 15 can be obtained with high accuracy without performing a special process for aligning the individual electrodes 15 being conveyed. Therefore, according to the electrode inspection method, the accuracy of the image inspection of the individual electrode 15 can be easily improved.

なお、本実施形態においては、その要旨を逸脱しない範囲で様々な変形が可能である。例えば、個片電極１５は、上述した正極及び負極以外に、タブを除いた部分が袋状のセパレータ内に収容された状態となっているセパレータ包み正極であってもよい。ここで、セパレータの形成材料としては、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）等のポリオレフィン系樹脂からなる多孔質フィルム、ポリプロピレン、ポリエチレンテレフタレート（ＰＥＴ）、メチルセルロース等からなる織布又は不織布等が例示される。   In the present embodiment, various modifications can be made without departing from the spirit of the present embodiment. For example, in addition to the positive electrode and the negative electrode described above, the individual electrode 15 may be a separator-wrapped positive electrode in which a portion excluding the tab is housed in a bag-shaped separator. Here, examples of the material for forming the separator include porous films made of polyolefin resins such as polyethylene (PE) and polypropylene (PP), woven fabrics and nonwoven fabrics made of polypropylene, polyethylene terephthalate (PET), methylcellulose, and the like. The

また、上記実施形態では、切断部３による切断手段をレーザ切断又は打ち抜き加工とする場合について模式的に説明したが、例えばレーザによる切断の場合、２台又はそれ以上の切断部により、帯状電極１０を切断してもよい。図６に、変形例に係る電極切断装置１００を示す。図６の（ａ）は、電極切断装置１００を模式的に示す平面図であり、図６の（ｂ）は、電極切断装置１００における上流側搬送部１０１及び下流側搬送部１０３の配置関係を示す平面図である。図６に示すように、電極切断装置１００は、上流側搬送部１０１と、上流側切断部１０２と、下流側搬送部（第１搬送部）１０３と、下流側切断部（切断部）１０４と、撮像部（第１撮像部）１０５と、を備える。   Moreover, in the said embodiment, although the case where the cutting | disconnection means by the cutting part 3 was set as laser cutting or stamping was demonstrated typically, in the case of the cutting | disconnection by a laser, for example, the strip | belt-shaped electrode 10 is by two or more cutting parts. May be cut. FIG. 6 shows an electrode cutting device 100 according to a modification. 6A is a plan view schematically showing the electrode cutting device 100, and FIG. 6B shows the arrangement relationship between the upstream transport unit 101 and the downstream transport unit 103 in the electrode cutting device 100. FIG. FIG. As shown in FIG. 6, the electrode cutting apparatus 100 includes an upstream conveying unit 101, an upstream cutting unit 102, a downstream conveying unit (first conveying unit) 103, and a downstream cutting unit (cutting unit) 104. An imaging unit (first imaging unit) 105.

図６の（ｂ）に示すように、下流側搬送部１０３は、上流側搬送部１０１よりも搬送方向下流側に配置される。また、上流側搬送部１０１及び下流側搬送部１０３は、互いに幅方向において重複しないように配置される。一例として、上流側搬送部１０１及び下流側搬送部１０３はそれぞれ、帯状電極１０の幅方向における一部を支持しながら、帯状電極１０を搬送方向に搬送するベルト部材である。この例では、上流側搬送部１０１は、帯状電極１０の幅方向における中央部分を支持する。また、下流側搬送部１０３は、搬送方向に沿って並設された一対の搬送ベルト１０３Ａ，１０３Ｂによって、帯状電極１０の幅方向における両端部分を支持する。また、上流側搬送部１０１及び下流側搬送部１０３は、それぞれ帯状電極１０を吸着するための貫通孔１０１ａ，１０３ａを有する。   As shown in FIG. 6B, the downstream side transport unit 103 is arranged on the downstream side in the transport direction with respect to the upstream side transport unit 101. Further, the upstream transport unit 101 and the downstream transport unit 103 are arranged so as not to overlap each other in the width direction. As an example, each of the upstream transport unit 101 and the downstream transport unit 103 is a belt member that transports the strip electrode 10 in the transport direction while supporting a part of the strip electrode 10 in the width direction. In this example, the upstream transport unit 101 supports the central portion in the width direction of the strip electrode 10. Further, the downstream side conveyance unit 103 supports both end portions in the width direction of the strip electrode 10 by a pair of conveyance belts 103A and 103B arranged in parallel along the conveyance direction. The upstream transport unit 101 and the downstream transport unit 103 have through holes 101 a and 103 a for adsorbing the belt-like electrode 10, respectively.

上流側切断部１０２は、上流側搬送部１０１によって支持されて搬送される帯状電極１０の両端部分（すなわち、平面視で上流側搬送部１０１と重ならない部分）の切断位置にレーザＬ１を照射することで、帯状電極１０を切断する。また、下流側切断部１０４は、下流側搬送部１０３によって支持されて搬送される帯状電極１０の中央部分（すなわち、平面視で下流側搬送部１０３と重ならない部分）の切断位置にレーザＬ２を照射することで、帯状電極１０を切断する。このように、まず上流側切断部１０２による切断が行われた後に下流側切断部１０４による切断が行われることで、個片電極１５が形成される。撮像部１０５は、下流側切断部１０４よりも搬送方向下流側において、下流側搬送部１０３の搬送面に対向するように配置され、個片電極１５のサイズに合った大きさの撮像範囲Ｒ３の画像を撮像するように予め設定されている。   The upstream cutting unit 102 irradiates the laser L1 at the cutting positions of both end portions of the belt-like electrode 10 supported and transported by the upstream transport unit 101 (that is, the portion that does not overlap with the upstream transport unit 101 in plan view). Thus, the strip electrode 10 is cut. Further, the downstream cutting unit 104 applies the laser L2 to the cutting position of the central portion of the strip electrode 10 that is supported and transported by the downstream transport unit 103 (that is, the portion that does not overlap the downstream transport unit 103 in plan view). Irradiation cuts the strip electrode 10. As described above, the individual electrode 15 is formed by first performing the cutting by the upstream cutting unit 102 and then performing the cutting by the downstream cutting unit 104. The imaging unit 105 is disposed on the downstream side of the downstream cutting unit 104 in the conveyance direction so as to face the conveyance surface of the downstream conveyance unit 103, and the imaging unit 105 has an imaging range R3 having a size that matches the size of the individual electrode 15. It is preset to take an image.

以上述べた電極切断装置１００では、下流側切断部１０４が帯状電極１０を切断して個片電極１５に個片化し、撮像部１０５が当該個片電極１５の上面１５ａの画像を撮像する。すなわち、帯状電極１０の切断と個片電極１５の上面１５ａの画像の取得とが、同一の下流側搬送部１０３による搬送過程で実行される。このように、下流側切断部１０４及び撮像部１０５を配置することにより、個片電極１５の位置ずれが少ない状態で当該個片電極１５の表面画像（上面１５ａの画像）を精度良く取得することができる。すなわち、搬送される個片電極１５を整列させるための特別な処理を実行することなく、個片電極１５の表面画像を精度良く取得することができる。   In the electrode cutting apparatus 100 described above, the downstream-side cutting unit 104 cuts the strip electrode 10 and divides it into individual electrodes 15, and the imaging unit 105 captures an image of the upper surface 15 a of the individual electrode 15. That is, the cutting of the strip electrode 10 and the acquisition of the image of the upper surface 15 a of the individual electrode 15 are performed in the transport process by the same downstream transport unit 103. As described above, by disposing the downstream-side cutting unit 104 and the imaging unit 105, the surface image (image of the upper surface 15a) of the individual electrode 15 can be obtained with high accuracy in a state where the positional deviation of the individual electrode 15 is small. Can do. That is, the surface image of the individual electrode 15 can be obtained with high accuracy without performing a special process for aligning the individual electrodes 15 being conveyed.

また、個片電極１５がセパレータ包み正極である場合、それに対応する帯状電極１０は、等間隔に並べられた複数の正極の両面側にシート状のセパレータが重ねられ、個々の正極の周囲（或いは周囲の一部）において一対のセパレータ同士が溶着されたものとなる。この場合、切断部３による切断によって得られる個片電極１５は、上述したセパレータ包み電極となり、上述した構成の電極切断装置１によって、セパレータ包み電極の両面（すなわち、セパレータ表面）の画像検査を精度良く実行することができる。   When the individual electrode 15 is a separator-wrapped positive electrode, the corresponding strip-like electrode 10 is formed by stacking sheet-like separators on both sides of a plurality of positive electrodes arranged at equal intervals, and surrounding each positive electrode (or In a part of the periphery, a pair of separators are welded to each other. In this case, the individual electrode 15 obtained by cutting by the cutting unit 3 becomes the above-described separator-wrapped electrode, and the electrode cutting apparatus 1 having the above-described configuration accurately performs image inspection on both surfaces of the separator-wrapped electrode (that is, the separator surface). Can perform well.

また、撮像部（第１撮像部４、第２撮像部６、又は撮像部１０５）の撮像範囲Ｒ１，Ｒ２，Ｒ３の上流側に電極の位置を検出するセンサ（例えばタブ位置を検出するセンサ）を設け、当該センサの検出結果に基づく演算により、撮像部による個片電極１５の撮像タイミングを求めてもよい。また、個片電極１５は、タブＴが設けられた部分、タブＴ側の縁部、活物質層等、様々なパーツに分かれており、特定のパーツ部分についてのみ画像検査を実施したい場合もあり得る。その場合には、上記実施形態のように個片電極１５のサイズに合った撮像範囲Ｒ１，Ｒ２，Ｒ３を設定する代わりに、検査対象のパーツ部分がなるべく大きく映るように撮像範囲を設定してもよい。上述した電極切断装置１又は電極切断装置１００によれば、個片電極１５の位置ずれが少ない状態（すなわち、予め想定される位置からのずれが少ない状態）で撮像部（第１撮像部４、第２撮像部６、又は撮像部１０５）による撮像を行うことができる。従って、検査対象のパーツ部分に該当する範囲のみを撮像範囲として設定し、当該パーツ部分の画像を精度良く取得することにより、当該パーツ部分の画像検査の精度を向上させることができる。   In addition, a sensor (for example, a sensor that detects a tab position) that detects the position of an electrode on the upstream side of the imaging ranges R1, R2, and R3 of the imaging unit (the first imaging unit 4, the second imaging unit 6, or the imaging unit 105). And the imaging timing of the individual electrode 15 by the imaging unit may be obtained by calculation based on the detection result of the sensor. In addition, the individual electrode 15 is divided into various parts such as a portion where the tab T is provided, an edge on the tab T side, an active material layer, and the like, and there is a case where it is desired to perform an image inspection only on a specific part portion. obtain. In that case, instead of setting the imaging ranges R1, R2, and R3 that match the size of the individual electrodes 15 as in the above embodiment, the imaging range is set so that the part part to be inspected appears as large as possible. Also good. According to the electrode cutting device 1 or the electrode cutting device 100 described above, the imaging unit (the first imaging unit 4, the state where the positional deviation of the individual electrode 15 is small (that is, the state where the deviation from a presumed position is small) is small. Imaging can be performed by the second imaging unit 6 or the imaging unit 105). Therefore, by setting only the range corresponding to the part portion to be inspected as the imaging range and acquiring the image of the part portion with high accuracy, the accuracy of the image inspection of the part portion can be improved.

１，１００…電極切断装置、２…第１搬送部、３…切断部、４…第１撮像部、５…第２搬送部、６…第２撮像部、７…第３搬送部、１０…帯状電極、１０ａ…上面、１０ｂ…下面（一方側の表面）、１５…個片電極、１５ａ…上面（他方側の表面）、１５ｂ…下面（一方側の表面）、２２ａ…搬送面（第１搬送面）、２２ｃ…搬送方向下流側の端部、２３…吸着部、５２ａ…搬送面（第２搬送面）、５２ｃ…搬送方向上流側の端部、５３…吸着部（第２吸着部）、１０３…下流側搬送部（第１搬送部）、１０４…下流側切断部（切断部）、１０５…撮像部（第１撮像部）。   DESCRIPTION OF SYMBOLS 1,100 ... Electrode cutting device, 2 ... 1st conveyance part, 3 ... Cutting part, 4 ... 1st imaging part, 5 ... 2nd conveyance part, 6 ... 2nd imaging part, 7 ... 3rd conveyance part, 10 ... Strip electrode, 10a ... upper surface, 10b ... lower surface (one side surface), 15 ... individual electrode, 15a ... upper surface (other side surface), 15b ... lower surface (one side surface), 22a ... transport surface (first) Transport surface), 22c ... end on the downstream side in the transport direction, 23 ... suction unit, 52a ... transport surface (second transport surface), 52c ... end on the upstream side in transport direction, 53 ... suction unit (second suction unit) Reference numerals 103, 103, a downstream transport unit (first transport unit), 104, a downstream cutting unit (cutting unit), and 105, an imaging unit (first imaging unit).

Claims (4)

長尺の帯状電極の一方側の表面に当接して前記帯状電極を支持する第１搬送面を有し、前記第１搬送面を搬送方向に移動させることにより前記帯状電極を前記搬送方向に搬送する第１搬送部と、
前記第１搬送部によって搬送中の前記帯状電極を切断することにより、前記帯状電極を個片電極に個片化する切断部と、
前記切断部よりも前記搬送方向下流側において前記第１搬送面に対向するように配置され、前記搬送方向に搬送される前記個片電極の他方側の表面の画像を撮像する第１撮像部と、を備える、
電極切断装置。 It has a first transport surface that contacts the surface of one side of the long strip electrode and supports the strip electrode, and transports the strip electrode in the transport direction by moving the first transport surface in the transport direction. A first conveying unit that
By cutting the strip electrode being transported by the first transport section, a cutting section that separates the strip electrode into individual electrodes;
A first imaging unit that is arranged to face the first transport surface downstream of the cutting unit in the transport direction, and that captures an image of the surface of the other side of the individual electrode transported in the transport direction; Comprising
Electrode cutting device. 前記第１搬送部は、前記帯状電極及び前記個片電極を前記第１搬送面に吸着させる第１吸着部を有する、
請求項１に記載の電極切断装置。 The first transport unit includes a first suction unit that sucks the strip electrode and the individual electrode on the first transport surface.
The electrode cutting device according to claim 1. 前記搬送方向上流側の端部が前記第１搬送面の前記搬送方向下流側の端部に対向するように前記第１搬送面と並設され、前記個片電極の前記他方側の表面に当接する第２搬送面と、前記個片電極を前記第２搬送面に吸着させる第２吸着部と、を有し、前記第２搬送面を前記搬送方向に移動させることにより前記個片電極を前記搬送方向に搬送する第２搬送部と、
前記第２搬送面に対向するように配置され、前記搬送方向に搬送される前記個片電極の前記一方側の表面の画像を撮像する第２撮像部と、を更に備える、
請求項１又は２に記載の電極切断装置。 The end on the upstream side in the transport direction is juxtaposed with the first transport surface so as to face the end on the downstream side in the transport direction of the first transport surface, and contacts the other surface of the individual electrode. A second conveying surface that contacts the second conveying surface; and a second adsorption unit that adsorbs the individual electrode to the second conveying surface; and moving the second conveying surface in the conveying direction to move the individual electrode to the second conveying surface. A second transport unit for transporting in the transport direction;
A second imaging unit that is arranged to face the second transport surface and captures an image of the surface of the one side of the individual electrode that is transported in the transport direction;
The electrode cutting device according to claim 1 or 2. 長尺の帯状電極を第１搬送部に供給する供給工程と、
前記第１搬送部によって搬送中の前記帯状電極を切断することにより、前記帯状電極を個片電極に個片化する切断工程と、
前記切断工程において切断された前記個片電極の表面の画像を撮像する検査工程と、
前記検査工程における撮像が完了した前記個片電極を、前記第１搬送部から当該第１搬送部の後段の第２搬送部に移載する移載工程と、を含む、
電極検査方法。 Supplying a long strip electrode to the first transport unit;
A cutting step of separating the strip electrode into individual electrodes by cutting the strip electrode being transported by the first transport section;
An inspection step of capturing an image of the surface of the individual electrode cut in the cutting step;
A transfer step of transferring the individual electrodes, which have been imaged in the inspection step, from the first transfer unit to a second transfer unit subsequent to the first transfer unit,
Electrode inspection method.
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