JP2007165092A - Manufacturing apparatus of electrode plate for lead-acid battery - Google Patents

Manufacturing apparatus of electrode plate for lead-acid battery Download PDF

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JP2007165092A
JP2007165092A JP2005359168A JP2005359168A JP2007165092A JP 2007165092 A JP2007165092 A JP 2007165092A JP 2005359168 A JP2005359168 A JP 2005359168A JP 2005359168 A JP2005359168 A JP 2005359168A JP 2007165092 A JP2007165092 A JP 2007165092A
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roller
electrode plate
water absorbing
water absorption
lower water
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Hiroyuki Takahashi
裕之 高橋
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Resonac Corp
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Shin Kobe Electric Machinery Co Ltd
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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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing apparatus of electrode plates for a lead acid battery which always maintains at a high condition the water absorbing capability of a water absorbing mechanism which absorbs moisture contained in pastes of the electrode plates conveyed to a drying process. <P>SOLUTION: The water absorbing mechanism 7 is equipped with an upper water absorbing roller 4, and a lower water absorbing roller 5 which absorbs moisture contained in the paste of the electrode plate 1 while rotating in a state in which the rollers are pressed, respectively, on the upper surface and the lower surface of the electrode plate 1 conveyed to the drying process by an electrode plate conveyer. The water absorbing mechanism 7 is provided with a squeezing roller 6 to squeezing out moisture in the lower water absorbing roller 5 by being pressed thereon. By squeezing out moisture absorbed in the lower water absorbing roller 5, the moisture amount absorbed in the lower water absorbing roller 5 is maintained at a less state than the moisture amount absorbed in the upper water absorbing roller, thereby maintaining the water absorbing capability of the water absorbing mechanism 7 at a high state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、鉛蓄電池用極板を製造する装置に関するものである。   The present invention relates to an apparatus for manufacturing an electrode plate for a lead storage battery.

鋳造された格子にペーストを充填して鉛蓄電池用の極板を製造する製造装置においては、極板が乾燥工程に搬送される途中でペーストが格子体から脱落するのを防止するために、ペースト中に含まれている水分を十分に除去しておくことが望ましい。そのため、鉛蓄電池用極板の製造装置においては、特許文献１に示されているように、ペーストが充填された極板を乾燥装置に向けて搬送する極板搬送装置に、上下に並べて配置された上部吸水ローラ及び下部吸水ローラからなる吸水機構を設けて、極板をこれらの吸水ローラの間に通して、極板の上面及び下面にそれぞれ上部吸水ローラ及び下部吸水ローラを押しつけることにより、両ローラにペースト中の水分を吸収させるようにしている。   In a manufacturing apparatus for manufacturing an electrode plate for a lead storage battery by filling the cast lattice with the paste, in order to prevent the paste from falling off the lattice body while the electrode plate is being transported to the drying process, It is desirable to sufficiently remove moisture contained therein. Therefore, in an apparatus for producing a lead-acid battery electrode plate, as shown in Patent Document 1, it is arranged side by side on an electrode plate conveying device that conveys an electrode plate filled with paste toward a drying device. A water absorption mechanism comprising an upper water absorption roller and a lower water absorption roller is provided, the electrode plate is passed between these water absorption rollers, and the upper water absorption roller and the lower water absorption roller are pressed against the upper and lower surfaces of the electrode plate, respectively. The roller absorbs moisture in the paste.

図４は、従来の鉛蓄電池用極板の製造装置に設けられていた極板搬送装置の構成を概略的に示したもので、同図において、１，１，…は、図示しないペースト充填装置により格子にペースト（活物質）が充填されて、第１のコンベア２及び第２のコンベア３により図示しない乾燥装置に向けて搬送される未乾燥の極板である。４及び５は、極板１，１，…の搬送路の途中に上下に並べて配置されて図示しない付勢手段により互いに接近する方向に付勢された上部吸水ローラ及び下部吸水ローラである。上部吸水ローラ４及び下部吸水ローラ５の間に極板が挿入されていない状態では、両吸水ローラの外周部が互いに接触させられた状態にある。上部吸水ローラ４及び下部吸水ローラ５を図示の矢印Ａ方向及びＢ方向に回転させるように、これらの吸水ローラの少なくとも一方を回転駆動する回転駆動機構が設けられ、上部及び下部吸水ローラ４及び５と、これらの吸水ローラを支持する支持機構と、両吸水ローラを付勢する付勢手段と、吸水ローラを回転駆動する回転駆動機構とにより、吸水機構７′が構成されている。   FIG. 4 schematically shows a configuration of an electrode plate transport device provided in a conventional lead-acid battery plate manufacturing apparatus. In FIG. 4, 1, 1,... Thus, the grid is filled with paste (active material) and is conveyed to the drying device (not shown) by the first conveyor 2 and the second conveyor 3 and is an undried electrode plate. Reference numerals 4 and 5 denote an upper water-absorbing roller and a lower water-absorbing roller which are arranged side by side in the middle of the conveying path of the electrode plates 1, 1,. In a state where no electrode plate is inserted between the upper water absorbing roller 4 and the lower water absorbing roller 5, the outer peripheral portions of both water absorbing rollers are in contact with each other. A rotation drive mechanism is provided to rotate at least one of these water absorption rollers so as to rotate the upper water absorption roller 4 and the lower water absorption roller 5 in the directions indicated by arrows A and B, and the upper and lower water absorption rollers 4 and 5 are provided. A water absorbing mechanism 7 'is constituted by the supporting mechanism for supporting these water absorbing rollers, the urging means for urging both water absorbing rollers, and the rotational drive mechanism for rotating the water absorbing rollers.

ペースト充填装置から乾燥装置に向けて搬送される極板１は、その搬送の途中で上部吸水ローラ４と下部吸水ローラ５との間に挿入される。極板１が吸水ローラ４及び５の間を通過する過程で両吸水ローラが極板１に押しつけられ、これにより、極板１のペーストの表面が平滑にならされるとともに、該ペーストに含まれる水分が吸水ローラ４及び５に吸収される。
特開昭５８−１５７０５１号公報 The electrode plate 1 conveyed from the paste filling device toward the drying device is inserted between the upper water absorption roller 4 and the lower water absorption roller 5 in the middle of the conveyance. In the process in which the electrode plate 1 passes between the water absorbing rollers 4 and 5, both water absorbing rollers are pressed against the electrode plate 1, thereby smoothing the surface of the paste of the electrode plate 1 and being included in the paste. Water is absorbed by the water absorption rollers 4 and 5.
Japanese Patent Laid-Open No. 58-157051

図４に示された従来の吸水機構７′を用いた場合には、ペースト中の水分が吸水ローラ４及び５に吸収されるだけで、両吸水ローラに吸収された水分がローラから排出されることがないため、ペースト中の水分を吸収する能力を高い状態に維持することができなかった。そのため、ペースト中の水分の除去を十分に行うことができず、極板が乾燥工程に搬送される途中で、格子体からペーストの一部が脱落する確率が高くなるという問題があった。   When the conventional water absorption mechanism 7 'shown in FIG. 4 is used, the water in the paste is only absorbed by the water absorption rollers 4 and 5, and the water absorbed by both water absorption rollers is discharged from the rollers. Therefore, the ability to absorb moisture in the paste could not be maintained at a high level. Therefore, the moisture in the paste cannot be sufficiently removed, and there is a problem that the probability that a part of the paste falls off from the lattice body is increased while the electrode plate is being transported to the drying process.

本発明の目的は、ペースト充填装置から乾燥装置に向けて極板を搬送する極板搬送装置を備えた鉛蓄電池用極板の製造装置において、極板に充填されたペースト中に含まれる水分を吸収するために極板搬送装置に設けられる吸水機構の吸水能力を常に高い状態に維持して、極板が乾燥工程に搬送される途中でペーストが脱落するのを防止できるようにすることにある。   An object of the present invention is to provide an electrode plate for a lead storage battery including an electrode plate conveying device that conveys an electrode plate from a paste filling device to a drying device, and to remove moisture contained in the paste filled in the electrode plate. In order to absorb, the water absorption capability of the water absorption mechanism provided in the electrode plate conveying device is always maintained in a high state so that the paste can be prevented from dropping off while the electrode plate is being conveyed to the drying process. .

本発明は、ペーストが充填された極板を乾燥装置に搬送する極板搬送装置と、極板搬送装置による搬送の途中にある極板の上面及び下面にそれぞれ押しつけられた状態で回転しつつ、押しつけられた極板のペースト中に含まれている水分を吸収する上部吸水ローラ及び下部吸水ローラを有する吸水機構とを備えた鉛蓄電池用極板の製造装置に係わるものである。   The present invention rotates while being pressed against the upper and lower surfaces of an electrode plate conveying device that conveys an electrode plate filled with paste to a drying device, and an electrode plate in the middle of conveyance by the electrode plate conveying device, The present invention relates to an apparatus for manufacturing an electrode plate for a lead storage battery comprising an upper water absorption roller that absorbs moisture contained in the pressed electrode plate paste and a water absorption mechanism having a lower water absorption roller.

本発明においては、上記吸水機構が、下部吸水ローラに押しつけられて該下部吸水ローラ中の水分を絞り出す絞りローラを更に備えている。   In the present invention, the water absorbing mechanism further includes a squeezing roller that is pressed against the lower water absorbing roller to squeeze out the water in the lower water absorbing roller.

上部吸水ローラと下部吸水ローラとにより構成される吸水機構においては、上部吸水ローラにより吸収された水分が重力により下部吸水ローラに移行するため、平衡状態においては、下部吸水ローラの方が上部吸水ローラよりも多くの水分を含んだ状態にある。上記のように、絞りローラを下部吸水ローラに押しつけて、この絞りローラにより下部吸水ローラに含まれた水分を絞り出すようにすると、上部吸水ローラと下部吸水ローラとの平衡状態を崩して、常に上部吸水ローラから下部吸水ローラに水分が移行する状態を維持することができる。従って、吸水機構の吸水機能を常に高い状態に維持することができ、極板が乾燥工程に搬送される途中で、格子体からペーストが脱落する確率を低くして、製品の歩留まりを向上させることができる   In the water absorption mechanism composed of the upper water absorption roller and the lower water absorption roller, the water absorbed by the upper water absorption roller is transferred to the lower water absorption roller due to gravity, so that in the equilibrium state, the lower water absorption roller is the upper water absorption roller. More moisture. As described above, when the squeezing roller is pressed against the lower water absorbing roller and the water contained in the lower water absorbing roller is squeezed out by this squeezing roller, the equilibrium state between the upper water absorbing roller and the lower water absorbing roller is lost, and the upper It is possible to maintain a state in which moisture moves from the water absorption roller to the lower water absorption roller. Therefore, the water absorption function of the water absorption mechanism can always be maintained at a high level, and the probability that the paste will fall off from the grid body is lowered while the electrode plate is being transported to the drying process, thereby improving the product yield. Can

本発明の好ましい態様では、ペーストが充填された一連の極板がそれぞれの板面を水平方向に向けた状態で搬送されるように極板搬送装置が構成され、上部吸水ローラ及び下部吸水ローラは、それぞれの中心軸線を、垂直面上で互いに平行な方向に向けた状態で配置される。この場合、絞りローラを、下部吸水ローラの中心軸線を含む水平面よりも下方の位置で下部吸水ローラに押しつけるように配置するのが好ましい。   In a preferred embodiment of the present invention, the electrode plate transport device is configured such that a series of electrode plates filled with paste are transported with their plate surfaces horizontally oriented, and the upper water absorption roller and the lower water absorption roller are The central axes are arranged in directions parallel to each other on the vertical plane. In this case, it is preferable that the squeezing roller is disposed so as to be pressed against the lower water absorption roller at a position below a horizontal plane including the central axis of the lower water absorption roller.

上記のように、絞りローラを下部吸水ローラの中心軸線を含む水平面よりも下方の位置で下部吸水ローラに押しつけるように配置すると、下部吸水ローラから絞り出された水分が再び下部吸水ローラに戻ることがないため、上部吸水ローラ及び下部吸水ローラの吸水能力を持続させることができる。   As described above, when the squeezing roller is arranged so as to be pressed against the lower water absorbing roller at a position below the horizontal plane including the central axis of the lower water absorbing roller, the water squeezed out from the lower water absorbing roller returns to the lower water absorbing roller again. Therefore, the water absorption capability of the upper water absorption roller and the lower water absorption roller can be maintained.

上記絞りローラは、上部吸水ローラの中心軸線と前記下部吸水ローラの中心軸線とを含む垂直面よりも極板の搬送方向の後方側に配置するのが好ましい。   The squeezing roller is preferably arranged on the rear side in the conveying direction of the electrode plate from a vertical plane including the central axis of the upper water absorbing roller and the central axis of the lower water absorbing roller.

本発明者が行った実験の結果によると、絞りローラを、上部吸水ローラの中心軸線と下部吸水ローラの中心軸線とを含む垂直面よりも極板の搬送方向の後方側に、下部吸水ローラの中心軸線を含む水平面よりも下方に位置させて配置すると、絞りローラを他の位置に配置した場合に比べて、下部吸水ローラからの排水効率が高くなることが確認された。   According to the results of the experiments conducted by the present inventors, the squeezing roller is disposed on the rear side in the conveying direction of the electrode plate from the vertical plane including the central axis of the upper water absorbing roller and the central axis of the lower water absorbing roller. It was confirmed that when the squeezing roller is arranged at a position lower than the horizontal plane including the central axis, the drainage efficiency from the lower water absorption roller is higher than when the squeezing roller is arranged at another position.

下部吸水ローラからの排水効率を高めるため、絞りローラは、下部吸水ローラよりも硬質の材料により形成するのが好ましい。   In order to enhance drainage efficiency from the lower water absorption roller, the squeeze roller is preferably formed of a material harder than the lower water absorption roller.

以上のように、本発明によれば、下部吸水ローラの水分を絞り出す絞りローラを設けたことにより、常に、下部吸水ローラに吸収されて保持されている水分の量を上部吸水ローラに吸収されて保持されている水分の量よりも少ない状態に保って、上部吸水ローラから下部吸水ローラに水分が移行する状態を維持することができるので、吸水機構の吸水能力を常に高い状態に維持することができ、極板が乾燥工程に搬送される途中でペーストが格子体から脱落する隔離を低くして、製品の歩留まりを向上させることができる。   As described above, according to the present invention, by providing the squeezing roller that squeezes the water of the lower water absorption roller, the upper water absorption roller always absorbs the amount of water absorbed and held by the lower water absorption roller. Since the state in which moisture is transferred from the upper water absorption roller to the lower water absorption roller can be maintained in a state where the amount of water held is smaller, the water absorption capability of the water absorption mechanism can always be maintained at a high level. In addition, it is possible to improve the yield of the product by lowering the isolation that the paste is dropped from the lattice while the electrode plate is conveyed to the drying process.

以下図１に示した実施例１及び図２に示した実施例２により、本発明の好ましい実施形態を詳細に説明する。   Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to Example 1 shown in FIG. 1 and Example 2 shown in FIG.

図１は本発明の実施例１で用いた極板搬送装置と吸水機構の要部の構成を示したもので、同図において、１，１，…は、図示しないペースト充填装置により格子にペースト（活物質）が充填された未乾燥の極板である。２はペースト充填装置から受け取った極板１，１，…を受け取って、それぞれの極板の板面を水平方向に向けた状態で吸水機構に向けて搬送する第１のコンベア、３は第１のコンベア２の前端部に後端部を対向させた状態で配置されて、第１のコンベア２により搬送された極板を受け取って、それぞれの極板の板面を水平方向に向けた状態で、乾燥装置に向けて搬送する第２のコンベアである。   FIG. 1 shows the configuration of the main parts of the electrode plate transport device and the water absorption mechanism used in Example 1 of the present invention. In FIG. 1, 1, 1,... It is an undried electrode plate filled with (active material). The first conveyor 2 receives the electrode plates 1, 1,... Received from the paste filling device, and conveys the electrode plates toward the water absorption mechanism in a state where the plate surfaces of the electrode plates are horizontally oriented. In a state where the rear end portion is disposed opposite to the front end portion of the conveyor 2 and the electrode plates conveyed by the first conveyor 2 are received and the plate surfaces of the respective electrode plates are directed horizontally. It is the 2nd conveyor conveyed toward a drying apparatus.

４及び５はそれぞれ、第１のコンベア２の前端部と第２のコンベア３の後端部との間に（極板の搬送路の途中に）上下に並べて配置された上部吸水ローラ及び下部吸水ローラで、これらの吸水ローラは、スポンジ等の吸水性を有する材料により形成されている。上部及び下部吸水ローラ４及び５は、それぞれの中心軸線を垂直面Ｏ1−Ｏ1上で互いに平行な方向に向けた状態で配置されている。吸水ローラ４及び５のそれぞれの軸心部には回転軸４ａ及び５ａが設けられ、これらの回転軸４ａ及び５ａが、図示しない支持機構により回転自在に支持されている。上部吸水ローラ４及び下部吸水ローラ５の少なくとも一方は、上下方向に変位し得るように支持されていて、バネやエアシリンダ等からなる図示しない付勢機構により、両吸水ローラ４及び５が互いに接近する方向に付勢されている。上部吸水ローラ４及び下部吸水ローラ５の間に極板１が挿入されていない状態では、両吸水ローラ４，５の外周部が互いに接触した状態に保持されている。上部吸水ローラ４及び下部吸水ローラ５の少なくとも一方を回転駆動する回転駆動機構が設けられ、この回転駆動機構により、上部吸水ローラ４及び下部吸水ローラ５が図示の矢印Ａ方向及びＢ方向に回転させられる。   Reference numerals 4 and 5 respectively denote an upper water absorption roller and a lower water absorption line arranged vertically between the front end portion of the first conveyor 2 and the rear end portion of the second conveyor 3 (in the middle of the conveying path of the electrode plates). These rollers are made of a material having water absorption properties such as sponge. The upper and lower water-absorbing rollers 4 and 5 are arranged with their respective central axes oriented in directions parallel to each other on the vertical plane O1-O1. Rotating shafts 4a and 5a are provided at the respective shaft centers of the water absorbing rollers 4 and 5, and these rotating shafts 4a and 5a are rotatably supported by a support mechanism (not shown). At least one of the upper water-absorbing roller 4 and the lower water-absorbing roller 5 is supported so that it can be displaced in the vertical direction, and the water-absorbing rollers 4 and 5 are brought closer to each other by an urging mechanism (not shown) composed of a spring, an air cylinder and the like. It is energized in the direction to do. When the electrode plate 1 is not inserted between the upper water absorbing roller 4 and the lower water absorbing roller 5, the outer peripheral portions of the water absorbing rollers 4 and 5 are held in contact with each other. A rotation drive mechanism that rotationally drives at least one of the upper water absorption roller 4 and the lower water absorption roller 5 is provided. By this rotation drive mechanism, the upper water absorption roller 4 and the lower water absorption roller 5 are rotated in the directions indicated by arrows A and B. It is done.

本発明においては、下部吸水ローラ５に押しつけられて該下部吸水ローラに含まれている水分を絞り出す絞りローラ６が設けられている。図示の例では、この絞りローラ６が、上部吸水ローラ４の中心軸線と下部吸水ローラ５の中心軸線とを含む垂直面Ｏ1−Ｏ1よりも極板の搬送方向の前方側に、下部吸水ローラ５の中心軸線を含む水平面Ｏ2−Ｏ2よりも下方に位置させた状態で配置されている。絞りローラ６は、その中心軸線を下部吸水ローラ５の中心軸線と平行な方向に向けた状態で配置され、その軸心部に設けられた回転軸６ａが図示しない支持機構により回転自在に支持されている。絞りローラ６の回転軸６ａは、下部吸水ローラ５に接近する方向と下部吸水ローラから離れる方向とに（下部吸水ローラ５の径方向にほぼ沿う方向に）変位し得るように支持されていて、バネやエアシリンダ等からなる図示しない付勢機構により吸水ローラ５側に付勢されている。これにより、絞りローラ６が常時下部吸水ローラ５に押しつけられた状態に保持されている。絞りローラ６は、下部吸水ローラ５よりも硬質のゴム材料や樹脂材料等により形成されていて、下部吸水ローラ５の回転に伴って、下部吸水ローラ５の回転方向と反対の方向に回転駆動される。絞りローラ６は、下部吸水ローラ５と反対方向に回転しながら下部吸水ローラ５を径方向に圧迫して、該下部吸水ローラから水分を絞り出す。本実施形態では、上部吸水ローラ４及び下部吸水ローラ５と絞りローラ６とにより吸水機構７が構成され、コンベア２及び３からなる極板搬送装置と、吸水機構７と、図示しないペースト充填装置及び乾燥装置とにより鉛蓄電池用極板の製造装置が構成されている。   In the present invention, there is provided a squeezing roller 6 that is pressed against the lower water absorption roller 5 to squeeze out the water contained in the lower water absorption roller. In the illustrated example, the squeezing roller 6 has a lower water-absorbing roller 5 on the front side in the conveying direction of the electrode plate from a vertical plane O1-O1 including the central axis of the upper water-absorbing roller 4 and the central axis of the lower water-absorbing roller 5. Are arranged in a state of being positioned below the horizontal plane O2-O2 including the central axis. The squeezing roller 6 is disposed with its center axis oriented in a direction parallel to the center axis of the lower water absorption roller 5, and a rotating shaft 6 a provided at the shaft center is rotatably supported by a support mechanism (not shown). ing. The rotation shaft 6a of the squeezing roller 6 is supported so that it can be displaced in a direction approaching the lower water absorption roller 5 and a direction away from the lower water absorption roller (in a direction substantially along the radial direction of the lower water absorption roller 5). It is urged toward the water absorption roller 5 by an urging mechanism (not shown) composed of a spring, an air cylinder or the like. As a result, the squeezing roller 6 is always kept pressed against the lower water absorption roller 5. The squeezing roller 6 is made of a harder rubber material or resin material than the lower water absorption roller 5 and is driven to rotate in a direction opposite to the rotation direction of the lower water absorption roller 5 as the lower water absorption roller 5 rotates. The The squeezing roller 6 presses the lower water absorbing roller 5 in the radial direction while rotating in the opposite direction to the lower water absorbing roller 5 to squeeze out moisture from the lower water absorbing roller. In the present embodiment, the upper water absorption roller 4, the lower water absorption roller 5, and the squeezing roller 6 constitute a water absorption mechanism 7, an electrode plate conveyance device including the conveyors 2 and 3, a water absorption mechanism 7, a paste filling device (not shown), and An apparatus for producing an electrode plate for a lead storage battery is constituted by the drying device.

上部吸水ローラ４と下部吸水ローラ５とにより構成される吸水機構においては、上部吸水ローラ４により吸収された水分が重力により下部吸水ローラ５に移行するため、絞りローラ６がない場合には、下部吸水ローラ５の方が上部吸水ローラ４よりも多くの水分を含んだ状態で平衡し、短時間で吸水能力が停止してしまう。   In the water absorption mechanism constituted by the upper water absorption roller 4 and the lower water absorption roller 5, the water absorbed by the upper water absorption roller 4 is transferred to the lower water absorption roller 5 by gravity. The water absorption roller 5 is balanced in a state containing more water than the upper water absorption roller 4, and the water absorption capacity is stopped in a short time.

これに対し、本発明のように、絞りローラ６を下部吸水ローラ５に押しつけて、この絞りローラにより下部吸水ローラに含まれた水分を絞り出すようにすると、上部吸水ローラと下部吸水ローラの吸水量が平衡した状態を崩して、常時、上部吸水ローラから下部吸水ローラに水分を移行させることができるため、吸水機構の吸水能力を高い状態に維持することができる。従って、極板が乾燥工程に搬送される途中でペーストが格子体から脱落する確率を低くして、製品の歩留まりを向上させることができる。   On the other hand, when the squeezing roller 6 is pressed against the lower water absorbing roller 5 and the water contained in the lower water absorbing roller is squeezed out by the squeezing roller as in the present invention, the water absorption amounts of the upper water absorbing roller and the lower water absorbing roller are reduced. Since the water can be constantly transferred from the upper water absorption roller to the lower water absorption roller by breaking the equilibrium state, the water absorption capability of the water absorption mechanism can be maintained at a high level. Therefore, it is possible to reduce the probability that the paste will drop off from the lattice during the conveyance of the electrode plate to the drying process, and to improve the product yield.

本発明を実施する際には、絞りローラ６を、本実施例１に示されているように、下部吸水ローラ５の中心軸線を含む水平面Ｏ2−Ｏ2よりも下方に位置させた状態で配置するのが好ましい。このように絞りローラ５を配置すると、下部吸水ローラ５から絞り出された水分が再び下部吸水ローラ５に戻るのを防ぐことができるため、上部吸水ローラ４及び下部吸水ローラ５の吸水能力を長時間に亘って十分に高い状態に保持することができる。   When carrying out the present invention, the squeezing roller 6 is arranged in a state of being positioned below the horizontal plane O2-O2 including the central axis of the lower water absorption roller 5, as shown in the first embodiment. Is preferred. By arranging the squeezing roller 5 in this way, it is possible to prevent the water squeezed out from the lower water absorbing roller 5 from returning to the lower water absorbing roller 5 again, so that the water absorbing ability of the upper water absorbing roller 4 and the lower water absorbing roller 5 is increased. It can be kept sufficiently high over time.

図２は本発明の実施例２で用いた極板搬送装置の要部と吸水機構の要部とを示したもので、この実施例では、絞りローラ６が、上部吸水ローラ４の中心軸線と下部吸水ローラの中心軸線とを含む垂直面Ｏ1−Ｏ1よりも極板の搬送方向の後方側に、下部吸水ローラ５の中心軸線を含む水平面Ｏ2−Ｏ2よりも下方に位置させた状態で配置されている。図１に示した実施例と同様に、絞りローラ６の回転軸６ａは、下部吸水ローラ５に接近する方向と該下部吸水ローラから離れる方向とに変位し得るように支持されていて、バネやエアシリンダ等からなる図示しない付勢機構により吸水ローラ５側に付勢され、これにより、絞りローラ６が常時下部吸水ローラ５に押しつけられた状態に保持されている。その他の点は図１に示した実施形態と同様に構成されている。   FIG. 2 shows the main part of the electrode plate transport device and the main part of the water absorption mechanism used in Example 2 of the present invention. In this example, the squeezing roller 6 is connected to the central axis of the upper water absorption roller 4. It is arranged in a state of being positioned below the horizontal plane O2-O2 including the central axis of the lower water absorption roller 5 on the rear side in the conveying direction of the electrode plate from the vertical plane O1-O1 including the central axis of the lower water absorption roller. ing. As in the embodiment shown in FIG. 1, the rotation shaft 6a of the squeezing roller 6 is supported so as to be able to displace in a direction approaching the lower water absorption roller 5 and a direction away from the lower water absorption roller 5, and a spring or The squeezing roller 6 is always pressed against the lower water-absorbing roller 5 by being urged toward the water-absorbing roller 5 by an urging mechanism (not shown) composed of an air cylinder or the like. Other points are the same as those of the embodiment shown in FIG.

本実施例のように、絞りローラ６を、上部吸水ローラ４の中心軸線と下部吸水ローラ５の中心軸線とを含む垂直面Ｏ1−Ｏ1よりも極板の搬送方向の後方側に、下部吸水ローラ５の中心軸線を含む水平面Ｏ2−Ｏ2よりも下方に位置させた状態で配置することによっても、絞りローラ６により下部吸水ローラ５に含まれた水分を絞り出し、上部吸水ローラと下部吸水ローラとの平衡状態を崩して、上部吸水ローラから下部吸水ローラに水分を移行させることができるため、吸水機構の吸水機能を長時間に亘って維持することができる。   As in this embodiment, the squeezing roller 6 is placed on the rear side in the conveying direction of the electrode plate from the vertical plane O 1 -O 1 including the central axis of the upper water absorbing roller 4 and the central axis of the lower water absorbing roller 5. Also, the water is contained in the lower water-absorbing roller 5 by the squeezing roller 6 so as to be positioned below the horizontal plane O2-O2 including the central axis 5 and the upper water-absorbing roller and the lower water-absorbing roller. Since the equilibrium state can be lost and moisture can be transferred from the upper water absorption roller to the lower water absorption roller, the water absorption function of the water absorption mechanism can be maintained for a long time.

次に図１に示した本発明の実施例１及び図２に示した実施例２と、図４に示した従来例とについて行った実験の結果について説明する。実験では、上記３例の製造装置を用いて、下記の手順で鉛蓄電池用の正極板を製造した。   Next, the results of experiments conducted on Example 1 of the present invention shown in FIG. 1 and Example 2 shown in FIG. 2 and the conventional example shown in FIG. 4 will be described. In the experiment, a positive electrode plate for a lead storage battery was manufactured by the following procedure using the manufacturing apparatuses of the above three examples.

ペースト練合機により水分量が12.9質量％の正極活物質ペーストを作り、この正極活物質ペーストをペースト充填装置に供給して、カルシウム合金からなる格子体に100［ｇ］のペーストが充填された正極板を順次作成し、一連の正極板を吸水機構を通してペースト中の水分を吸収させた後に乾燥装置に搬入して未化成の正極板を得る過程を各例の吸水機構について行った。各例の吸水機構について行った実験においては、実験の開始に先立って、吸水機構の上部吸水ローラ４及び下部吸水ローラ５に十分に水を含ませた状態にしておいた。   A positive electrode active material paste having a water content of 12.9% by mass was prepared by a paste kneader, and this positive electrode active material paste was supplied to a paste filling device, and a grid made of calcium alloy was filled with 100 [g] paste. The process of producing positive electrode plates in sequence, absorbing the moisture in the paste through the water absorption mechanism, and then carrying it into a drying apparatus to obtain an unformed positive electrode plate was performed for each of the water absorption mechanisms in each example. In the experiments conducted on the water absorption mechanisms of the examples, prior to the start of the experiment, the upper water absorption roller 4 and the lower water absorption roller 5 of the water absorption mechanism were sufficiently filled with water.

３例の吸水機構のそれぞれを用いた場合について、試験に供する正極板の数ｎを１００００［枚］とし、吸水機構を通過した直後の各正極板のペースト中の水分量を測定した後、一連の極板が乾燥工程に搬送される途中で、ペースの脱落があった極板（ペーストの脱落があった格子が１箇所以上あったもの）の数をカウントした。吸水機構を通過した後のペースト中の水分量（質量％）の測定結果の平均値及びペースト脱落発生率を図３に示した。   In the case of using each of the three water absorption mechanisms, the number n of positive electrode plates used for the test was set to 10000 [sheets], and after measuring the moisture content in the paste of each positive electrode plate immediately after passing through the water absorption mechanism, a series of While the electrode plate was being transported to the drying process, the number of electrode plates (having one or more grids where paste was dropped) was counted. The average value of the measurement result of the moisture content (mass%) in the paste after passing through the water absorption mechanism and the rate of occurrence of dropout are shown in FIG.

図３の結果から、本発明によれば、従来例による場合よりも、吸水機構による吸水効率を高め、格子体からのペーストの脱落を抑制できることが明らかになった。   From the result of FIG. 3, according to the present invention, it has been clarified that the water absorption efficiency by the water absorption mechanism can be enhanced and the dropping of the paste from the lattice body can be suppressed as compared with the conventional example.

また実施例２のように、絞りローラ６を、上部吸水ローラ４の中心軸線と下部吸水ローラ５の中心軸線とを含む垂直面Ｏ1−Ｏ1よりも極板の搬送方向の後方側に、下部吸水ローラ５の中心軸線を含む水平面Ｏ2−Ｏ2よりも下方に位置させた状態で配置すると、実施例１による場合よりも、下部吸水ローラ中に含まれる水分の排水効率を高めて、吸水機構通過後のペースト中の水分量を少なくし、ペースト脱落発生率を低下させることができることが明らかになった。   In addition, as in the second embodiment, the squeezing roller 6 is placed on the lower water absorption side on the rear side in the conveying direction of the electrode plate from the vertical plane O 1 -O 1 including the central axis of the upper water absorption roller 4 and the central axis of the lower water absorption roller 5. When arranged in a state of being positioned below the horizontal plane O2-O2 including the central axis of the roller 5, the drainage efficiency of the water contained in the lower water absorption roller is improved as compared with the case of Example 1, and after passing through the water absorption mechanism. It was revealed that the amount of moisture in the paste can be reduced and the rate of paste dropout can be reduced.

以上の結果から、本発明によれば、以下の効果が得られることが確認された。
（１）極板が乾燥工程に向けて搬送される途中で発生する極板の格子からのペーストの脱落を抑制して、不良品の発生率を低減することができる。
（２）下部吸水ローラに含まれる水分を効率よく排出させて、吸水ローラの吸水能力を常に高い状態に維持することができる。
（３）従来の製造装置で用いられていた吸水機構に絞りローラを追加するだけで、ペースト脱落発生率を改善できるので、改善に要する費用が安価である。 From the above results, it was confirmed that the following effects can be obtained according to the present invention.
(1) It is possible to suppress the drop-off of the paste from the grid of the electrode plate that is generated while the electrode plate is conveyed toward the drying process, and to reduce the incidence of defective products.
(2) The water contained in the lower water absorption roller can be efficiently discharged, and the water absorption capability of the water absorption roller can be constantly maintained at a high level.
(3) The paste drop-off occurrence rate can be improved only by adding a squeeze roller to the water absorption mechanism used in the conventional manufacturing apparatus, so the cost required for improvement is low.

本発明の実施例１で用いる極板搬送装置と吸水機構の要部の構成を概略的に示した構成図である。It is the block diagram which showed schematically the structure of the principal part of the electrode plate conveying apparatus and water absorption mechanism which are used in Example 1 of this invention. 本発明の実施例２で用いる極板搬送装置と吸水機構の要部の構成を概略的に示した構成図である。It is the block diagram which showed schematically the structure of the principal part of the electrode plate conveying apparatus and water absorption mechanism which are used in Example 2 of this invention. 本発明の実施例１及び実施例２と従来例とについて行った実験の結果を示した図表である。It is the table | surface which showed the result of the experiment conducted about Example 1 and Example 2 of this invention, and the prior art example. 従来例で用いた極板搬送装置と吸水機構の要部の構成を概略的に示した構成図である。It is the block diagram which showed schematically the structure of the principal part of the electrode plate conveying apparatus and water absorption mechanism which were used by the prior art example.

符号の説明Explanation of symbols

１ 極板
２ 第１のコンベア
３ 第２のコンベア
４ 上部吸水ローラ
５ 下部吸水ローラ
６ 絞りローラ
７ 吸水機構
DESCRIPTION OF SYMBOLS 1 Electrode plate 2 1st conveyor 3 2nd conveyor 4 Upper water absorption roller 5 Lower water absorption roller 6 Diaphragm roller 7 Water absorption mechanism

Claims (4)

ペーストが充填された極板を乾燥装置に搬送する極板搬送装置と、前記極板搬送装置による搬送の途中にある極板の上面及び下面にそれぞれ押しつけられた状態で回転しつつ、押しつけられた極板のペースト中に含まれている水分を吸収する上部吸水ローラ及び下部吸水ローラを有する吸水機構とを備えている鉛蓄電池用極板の製造装置において、
前記吸水機構は、前記下部吸水ローラに押しつけられて該下部吸水ローラ中の水分を絞り出す絞りローラを更に備えていることを特徴とする鉛蓄電池用極板の製造装置。 The electrode plate filled with the paste was conveyed to the drying device, and the electrode plate was pressed while rotating while being pressed against the upper and lower surfaces of the electrode plate in the middle of conveyance by the electrode plate conveying device. In an apparatus for producing an electrode plate for a lead storage battery comprising an upper water absorbing roller that absorbs moisture contained in the electrode plate paste and a water absorbing mechanism having a lower water absorbing roller,
The apparatus for producing an electrode plate for a lead storage battery, wherein the water absorbing mechanism further includes a squeezing roller that is pressed against the lower water absorbing roller and squeezes out water in the lower water absorbing roller. ペーストが充填された一連の極板がそれぞれの板面を水平方向に向けた状態で搬送されるように前記極板搬送装置が構成され、
前記上部吸水ローラ及び下部吸水ローラは、それぞれの中心軸線を、垂直面上で互いに平行な方向に向けた状態で配置され、
前記絞りローラは、前記下部吸水ローラの中心軸線を含む水平面よりも下方の位置で前記下部吸水ローラに押しつけられるように配置されている請求項１に記載の鉛蓄電池用極板の製造装置。 The electrode plate conveying device is configured such that a series of electrode plates filled with paste are conveyed in a state where each plate surface is oriented in the horizontal direction,
The upper water-absorbing roller and the lower water-absorbing roller are arranged with their respective central axes oriented in directions parallel to each other on a vertical plane,
The lead plate for a lead-acid battery according to claim 1, wherein the squeezing roller is disposed so as to be pressed against the lower water absorbing roller at a position below a horizontal plane including a central axis of the lower water absorbing roller. 前記絞りローラは、前記上部吸水ローラの中心軸線と前記下部吸水ローラの中心軸線とを含む垂直面よりも前記極板の搬送方向の後方側に配置されている請求項２に記載の鉛蓄電池用極板の製造装置。   3. The lead storage battery according to claim 2, wherein the squeezing roller is disposed on a rear side in a conveying direction of the electrode plate with respect to a vertical plane including a central axis of the upper water absorbing roller and a central axis of the lower water absorbing roller. Electroplate manufacturing equipment. 前記絞りローラは、前記下部吸水ローラよりも硬質の材料により形成されていることを特徴とする請求項１，２または３に記載の鉛蓄電池用極板の製造装置。
4. The lead-acid battery plate manufacturing apparatus according to claim 1, wherein the squeezing roller is made of a material harder than the lower water absorption roller.
JP2005359168A 2005-12-13 2005-12-13 Manufacturing apparatus of electrode plate for lead-acid battery Pending JP2007165092A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646815A (en) * 2012-04-12 2012-08-22 肇庆理士电源技术有限公司 Polar plate treating method and compression roller assembly used for same
CN105098147A (en) * 2014-06-30 2015-11-25 浙江天能电池(江苏)有限公司 Novel acid dripping and rolling device for smearing unformed plate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157051A (en) * 1982-03-12 1983-09-19 Matsushita Electric Ind Co Ltd Manufacture of paste type electrode for lead-acid battery
JPH05151960A (en) * 1991-11-28 1993-06-18 Matsushita Electric Ind Co Ltd Manufacture of plate for lead acid battery
JP2001058759A (en) * 1999-08-23 2001-03-06 Toenec Corp Cable washing device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157051A (en) * 1982-03-12 1983-09-19 Matsushita Electric Ind Co Ltd Manufacture of paste type electrode for lead-acid battery
JPH05151960A (en) * 1991-11-28 1993-06-18 Matsushita Electric Ind Co Ltd Manufacture of plate for lead acid battery
JP2001058759A (en) * 1999-08-23 2001-03-06 Toenec Corp Cable washing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646815A (en) * 2012-04-12 2012-08-22 肇庆理士电源技术有限公司 Polar plate treating method and compression roller assembly used for same
CN105098147A (en) * 2014-06-30 2015-11-25 浙江天能电池(江苏)有限公司 Novel acid dripping and rolling device for smearing unformed plate

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