JP2012138175A - Induction heating apparatus - Google Patents

Induction heating apparatus Download PDF

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JP2012138175A
JP2012138175A JP2010287833A JP2010287833A JP2012138175A JP 2012138175 A JP2012138175 A JP 2012138175A JP 2010287833 A JP2010287833 A JP 2010287833A JP 2010287833 A JP2010287833 A JP 2010287833A JP 2012138175 A JP2012138175 A JP 2012138175A
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induction heating
workpiece
heating apparatus
coil elements
sides
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JP5647885B2 (en
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Masahiro Yoshino
昌宏 吉野
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YOSHINO KOSAKUSHO KK
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YOSHINO KOSAKUSHO KK
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Abstract

PROBLEM TO BE SOLVED: To achieve an optimal heating state depending on the size of a work.SOLUTION: In the induction heating apparatus, a plurality of coil elements 5 layered in a vertical direction are arranged in parallel in a horizontal direction on both sides of a pass direction of a work W, and a facing distance between coil elements 5 in a vertical direction can be changed. The induction heating apparatus includes a plurality of holding members 3 holding the layered coil elements arranged in parallel on the both sides of the pass direction of the work W, respectively, an arm member 49 rotatably linked to one of the holding members and linked to the remaining holding members via pins 55 each slidably engaged with a slot 7 provided on the holding member side, and rotation means linked to the base end side of the arm member 49. The facing distances of the coil elements 5 from one another in the vertical direction can be changed by contracting the plurality of holding members 3 in the vertical direction depending on rotation of the arm member 49.

Description

本発明は、ワークを対向するコイルの間に順次通過させることで連続的に加熱処理するタイプの誘導加熱装置に係り、特に、ワークの種々の大きさに対応してワーク毎に最適な加熱状態を実現できる誘導加熱装置に関するものである。   The present invention relates to an induction heating apparatus that continuously heats a workpiece by sequentially passing the workpiece between opposing coils, and in particular, an optimum heating state for each workpiece corresponding to various sizes of the workpiece. It is related with the induction heating apparatus which can implement | achieve.

粉体塗料を施した金属塗装品であるワークの焼き付け乾燥には、誘導加熱方式を利用すると、ワーク自体を加熱するのでワークに接触している側の塗料から加熱されることになり塗膜がワークに強固に固定されることや、脱脂処理をせずとも油分等が消散することや、外から加熱するわけではないので乾燥ドーム設備も不要になることや、消費エネルギーやＣＯ２排出量を削減できることや、設置スパースも広く取らずに済むこと等から、好ましいとされている。
そして、処理効率を考慮して、特許文献１に記載のように、ワークを対向するコイルの間に順次通過させることで連続的に加熱処理することが提案されている。 The induction heating method is used to bake and dry a workpiece, which is a metal coated product with a powder coating, and the workpiece itself is heated, so the coating on the side in contact with the workpiece is heated. It can be firmly fixed to the workpiece, oil can be dissipated without degreasing, no drying dome equipment is required because it is not heated from the outside, and energy consumption and CO 2 emissions are reduced. It is preferable because it can be reduced and installation sparse is not necessary.
In consideration of the processing efficiency, as described in Patent Document 1, it has been proposed that heat treatment is continuously performed by sequentially passing a workpiece between opposing coils.

特開２００５−２５９５７５号公報JP 2005-259575 A

特許文献１では、ワークの種々の大きさを考慮して、ワークの通過方向両側に複数段にわたって水平方向に平行に並列配置されたコイル要素を両側から移動可能にすることで、ワークとコイル要素との対向間隔を最適に接近させることができるようにしている。
しかしながら、コイル要素の上下方向の長さについては調整できず、一定のものとなっている。
そのため、上下方向に長いワークに対応して配置したコイルセットを設置すると、それより短いワークを加熱する場合には無駄なエネルギーを消費することになるだけでなく、ワークの上下端部側が過熱されることになる。
一方、ワーク毎にコイルセットを交換するのは非常に面倒である。 In Patent Document 1, in consideration of various sizes of workpieces, coil elements arranged in parallel in the horizontal direction across a plurality of stages on both sides in the passing direction of the workpiece are movable from both sides, thereby enabling the workpiece and the coil elements to move. It is made possible to make the facing distance between and optimally approach.
However, the length of the coil element in the vertical direction cannot be adjusted and is constant.
For this reason, if a coil set placed corresponding to a workpiece that is long in the vertical direction is installed, not only wasteful energy is consumed when heating a workpiece shorter than that, but the upper and lower ends of the workpiece are overheated. Will be.
On the other hand, it is very troublesome to change the coil set for each workpiece.

それ故、本発明は、上記課題を解決するために、コイル要素の上下方向の長さを変更できる、誘導加熱装置を提供することを、その目的とする。
また、本発明は、併せて、ワークを挟んで対応するコイル要素を両側からも移動可能にしてワークとコイル要素の対向間隔も変更できる、誘導加熱装置を提供することを、その目的とする。 Therefore, in order to solve the above-described problems, an object of the present invention is to provide an induction heating device that can change the length of the coil element in the vertical direction.
Another object of the present invention is to provide an induction heating apparatus that can move the corresponding coil element from both sides with the workpiece sandwiched therebetween and can also change the facing distance between the workpiece and the coil element.

上記課題を解決するために、請求項１の発明は、ワークを対向するコイル要素の間に通過させることで誘導加熱する誘導加熱装置において、ワークの通過方向両側で上下方向に複数段にわたって水平方向に並列配置したコイル要素と、並列したコイル要素どうしの上下方向の対向間隔を変更する上下方向間隔変更手段とを備えることを特徴とする誘導加熱装置である。   In order to solve the above-mentioned problems, the invention of claim 1 is directed to an induction heating apparatus that performs induction heating by passing a workpiece between opposing coil elements. An induction heating apparatus comprising: coil elements arranged in parallel to each other; and vertical interval changing means for changing an interval in the vertical direction between the parallel coil elements.

請求項２の発明は、請求項１に記載した誘導加熱装置において、上下方向間隔変更手段は、ワークの通過方向両側でそれぞれ並列した各段のコイル要素をそれぞれ保持する複数の保持部材と、前記保持部材の一つには回動可能に連結され、その余の保持部材には保持部材側に設けられた長穴に摺動可能に係合したピンを介して連結されたアーム部材と、前記アーム部材の基端側に連結された回動手段とにより構成され、前記アーム部材の回動により前記複数の保持部材を上下方向に伸縮することで並列したコイル要素どうしの上下方向の対向間隔を変更することを特徴とする誘導加熱装置である。   The invention according to claim 2 is the induction heating apparatus according to claim 1, wherein the vertical interval changing means includes a plurality of holding members that respectively hold the coil elements of each stage arranged in parallel on both sides in the passing direction of the workpiece, One of the holding members is rotatably connected, and the other holding member is connected via a pin slidably engaged with an elongated hole provided on the holding member side; And a rotating means connected to the base end side of the arm member, and by vertically extending and retracting the plurality of holding members by the rotation of the arm member, the opposing spacing in the vertical direction between the parallel coil elements is increased. It is an induction heating device characterized by changing.

請求項３の発明は、請求項２に記載した誘導加熱装置において、上下方向間隔変更手段は、ワークの通過方向両側にそれぞれ一対のアーム部材を備え、回動手段は、ワークの通過方向に直交した状態で並列配置した一対の回転軸を備え、前記アーム部材は前記回転軸とそれぞれ噛合いを介して連結されていると共に、前記回転軸どうしも噛合いを介して連結されており、１本の回転軸の駆動回転によりワークの通過方向両側のそれぞれの一対のアーム部材を互いに反対方向に回動させることを特徴とする誘導加熱装置である。   According to a third aspect of the present invention, in the induction heating apparatus according to the second aspect, the vertical interval changing means includes a pair of arm members on both sides of the workpiece passing direction, and the rotating means is orthogonal to the workpiece passing direction. A pair of rotary shafts arranged in parallel with each other, and the arm members are connected to the rotary shafts through meshing, and the rotary shafts are connected to each other through meshing. The induction heating apparatus is characterized in that the pair of arm members on both sides of the workpiece passing direction are rotated in opposite directions by driving rotation of the rotating shaft.

請求項４の発明は、請求項３に記載した誘導加熱装置において、回動手段では、１本の回転軸に対して両側のアーム部材に対応して一対の歯車が設けられ、前記回転軸に対して一方側は歯車が固定結合され、他方側では摺動可能に結合されており、さらに、ワークの通過方向両側の保持部材どうしの横方向の対向間隔を変更調整する横方向間隔変更手段が備えられて、前記横方向間隔変更手段により横方向の間隔が変更されたときには前記他方側の歯車が追従して前記回転軸上を摺動することを特徴とする誘導加熱装置である。   According to a fourth aspect of the present invention, in the induction heating apparatus according to the third aspect, the rotating means is provided with a pair of gears corresponding to the arm members on both sides with respect to one rotating shaft, and the rotating shaft includes On the other hand, a gear is fixedly coupled on one side and slidably coupled on the other side, and further, a lateral distance changing means for changing and adjusting the lateral facing distance between the holding members on both sides of the workpiece passing direction is provided. The induction heating device is provided, wherein when the horizontal interval is changed by the horizontal interval changing means, the gear on the other side follows and slides on the rotating shaft.

本発明の誘導加熱装置によれば、連続処理方式でありながら、ワークの種々の大きさに対応して最適な加熱状態を実現できる。   According to the induction heating apparatus of the present invention, it is possible to realize an optimum heating state corresponding to various sizes of the workpiece while being a continuous processing method.

本発明の実施の形態に係る誘導加熱装置の一方側の伸長時の正面図である。It is a front view at the time of the expansion | extension of one side of the induction heating apparatus which concerns on embodiment of this invention. 図１の誘導加熱装置の一方側の収縮時の正面図である。It is a front view at the time of shrinkage | contraction of the one side of the induction heating apparatus of FIG. 図１の誘導加熱装置の回動手段を説明する斜視図であるIt is a perspective view explaining the rotation means of the induction heating apparatus of FIG. 図１の誘導加熱装置の伸長時の断面図である。It is sectional drawing at the time of the expansion | extension of the induction heating apparatus of FIG. 図２の誘導加熱装置の収縮時の断面図である。It is sectional drawing at the time of shrinkage | contraction of the induction heating apparatus of FIG.

本発明の実施の形態に係る誘導加熱装置１を、図面に従って説明する。
図１において、符号３は保持部材群を示し、この保持部材群３は水平方向に細長い板状を為しており、板面は紙面の直交方向に向いている。保持部材群３は上下方向に５段にわたって並列している。そして、保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅにはそれぞれコイル要素としてのパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅが取り付けられて保持されている。図１はこの保持部材群３とパイプ部５からなるセットを正面側から示したものであり、奥側にも同じものが備えられている。そして、正面側のパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅと奥側のパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅとがそれぞれ同じ高さで向かい合った状態で対向配置している。この間をワークＷが通過する。 An induction heating apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 3 denotes a holding member group. The holding member group 3 has a plate shape elongated in the horizontal direction, and the plate surface is oriented in a direction orthogonal to the paper surface. The holding member group 3 is arranged in five stages in the vertical direction. The holding member groups 3a, 3b, 3c, 3d, and 3e are respectively attached and held with pipe portions 5a, 5b, 5c, 5d, and 5e as coil elements. FIG. 1 shows a set of the holding member group 3 and the pipe portion 5 from the front side, and the same is provided on the back side. And the pipe parts 5a, 5b, 5c, 5d, and 5e on the front side and the pipe parts 5a, 5b, 5c, 5d, and 5e on the back side face each other at the same height. During this time, the workpiece W passes.

正面側のパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅと奥側のパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅは複数の可とう性通電冷却ホース（図示省略）で連結されて一続きになっており、全体として長円形のらせん状をなしている。この一続きで誘導コイルを為しており、この誘導コイルには高周波電源（図示量略）から高周波電流が供給されるようになっている。従って、正面側のパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅと奥側のパイプ部５ａ、５ｂ、５ｃ、５ｄ、５ｅとでは電流方向が逆になっている。   The pipe parts 5a, 5b, 5c, 5d, and 5e on the front side and the pipe parts 5a, 5b, 5c, 5d, and 5e on the back side are connected together by a plurality of flexible energization cooling hoses (not shown). It has an oval spiral as a whole. This continuous coil forms an induction coil, and a high-frequency current is supplied to the induction coil from a high-frequency power source (not shown). Accordingly, the current direction is reversed between the pipe portions 5a, 5b, 5c, 5d, and 5e on the front side and the pipe portions 5a, 5b, 5c, 5d, and 5e on the back side.

保持部材群３とそれを駆動する機構は正面側と奥側は殆ど同じ構成になっているので、同じ構成について正面側を図示した図１に基づいて、以下に説明する。
保持部材群３ａ、３ｂ、３ｃ、３ｄには、水平方向に延びる一対の横長穴７ａ、７ｂ、７ｃ、７ｄがそれぞれ対応して形成されている。この横長穴は７ａ>７ｂ>７ｃ>７ｄの順に長くなり、しかも水平方向外方側には７ａ>７ｂ>７ｃ>７ｄの順に長穴端が延び、水平方向内方側には逆に７ｄ>７ｃ>７ｂ>７ａの順に長穴端が延びている。 Since the front side and the back side of the holding member group 3 and the mechanism for driving the holding member group 3 have almost the same configuration, the same configuration will be described below with reference to FIG. 1 illustrating the front side.
The holding member groups 3a, 3b, 3c, and 3d are formed with a pair of horizontally elongated holes 7a, 7b, 7c, and 7d that extend in the horizontal direction. This laterally elongated hole becomes longer in the order of 7a>7b>7c> 7d, and further, the end of the elongated hole extends in the order of 7a>7b>7c> 7d on the outer side in the horizontal direction, and 7d> on the inner side in the horizontal direction. The long hole ends extend in the order of 7c>7b> 7a.

保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅは、水平バー部材９とその上に立設された４本の縦フレーム部材１１とでなるフレーム機台上に連結されて支持されており、具体的には縦フレーム部材１１に連結されて４箇所で支持されている。各縦フレーム部材１１には、縦方向に延びる縦長穴１３が形成されている。上記した保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅのうち保持部材群３ａ、３ｂ、３ｃ、３ｄにはピン１５が取り付けられ、このピン１５の軸が上記した縦長穴１３に嵌め込まれており、保持部材群３ａ、３ｂ、３ｃ、３ｄは縦長穴１３内でのピン１５の軸の摺動により上下方向に移動できるようになっている。一方、残りの保持部材群３ｅは縦長穴１３の下方に形成された穴を利用したボルト１７によるボルトナット締結により縦フレーム部材１１に固定されている。   The holding member groups 3a, 3b, 3c, 3d, and 3e are connected and supported on a frame machine base including a horizontal bar member 9 and four vertical frame members 11 that are erected on the horizontal bar member 9. Specifically, it is connected to the vertical frame member 11 and supported at four locations. Each vertical frame member 11 is formed with a vertically long hole 13 extending in the vertical direction. Of the holding member groups 3a, 3b, 3c, 3d, and 3e described above, a pin 15 is attached to the holding member groups 3a, 3b, 3c, and 3e, and the shaft of the pin 15 is fitted into the above-described vertically elongated hole 13. The holding member groups 3 a, 3 b, 3 c, 3 d can be moved in the vertical direction by sliding the shaft of the pin 15 in the longitudinal hole 13. On the other hand, the remaining holding member group 3 e is fixed to the vertical frame member 11 by fastening bolts and nuts with bolts 17 using holes formed below the vertically long holes 13.

この誘導加熱装置１には、保持部材群３の駆動機構が３種類備えられている。以下、詳細に説明する。
図１において、符号１９はスライド台を示し、このスライド台１９が床面上に設置されている。このスライド台１９には一対の脚部２１が設けられ、各脚部２１の上部側内面に設けられたガイド溝には、スライダー板２３の左右両側縁が摺動可能に嵌め込まれており、スライダー板２３は紙面に直交する方向に移動可能となっている。図４に示すように、このスライダー板２３に吊り下げされたナット部材２５には移動ネジ２７が螺合している。スライド台１９の脚部２１から正面側に突き出した支持プレート上には中心移動モーター２９（図１）が設置されており、移動ネジ２７はこの中心移動モーター２９（図１）に連結している。この構成により、中心移動モーター２９の駆動によりスライダー板２３がその上に設置された保持部材群３と共に黒矢印（図４）に示す方向に横移動できるようになっている。この横移動により、対向する一対の保持部材群３の間の中心軸Ｃが移動することになる。 The induction heating device 1 includes three types of drive mechanisms for the holding member group 3. Details will be described below.
In FIG. 1, the code | symbol 19 shows the slide stand, and this slide stand 19 is installed on the floor surface. The slide table 19 is provided with a pair of leg portions 21, and the left and right side edges of the slider plate 23 are slidably fitted in the guide grooves provided on the upper inner surface of each leg portion 21. The plate 23 is movable in a direction perpendicular to the paper surface. As shown in FIG. 4, a moving screw 27 is screwed onto the nut member 25 suspended from the slider plate 23. A center moving motor 29 (FIG. 1) is installed on the support plate protruding from the leg portion 21 of the slide base 19 to the front side, and the moving screw 27 is connected to the center moving motor 29 (FIG. 1). . With this configuration, the slider plate 23 can be moved laterally in the direction indicated by the black arrow (FIG. 4) together with the holding member group 3 installed thereon by driving the center moving motor 29. With this lateral movement, the central axis C between the pair of holding member groups 3 facing each other moves.

図１に示すように、上記したスライダー板２３の上には、紙面に直交する方向に並列した状態で一対のガイドレールが設けられ、この一対のガイドレール上には支持台３１のスライダー脚３３が摺動可能に係合しており、支持台３１はスライダー板２３に対して紙面に直交する方向に移動可能となっている。一方、正面側の支持台３１には、開閉モーター３５がスライダー板２３の上に設置されており、この開閉モーター３５には、図４に示すように開閉ネジ３７が連結されている。この開閉ネジ３７は両端側が互いに逆ネジの関係を為すようにネジが形成され、両端側がそれぞれ板状ナット３９と螺合している。板状ナット３９は両側に位置するフレーム機台の縦フレーム部材１１と連結している。この構成により、開閉モーター３５の駆動によりスライダー板２３に対して一対の板状ナット３９、３９がその上に設置された保持部材群３と共に白矢印（図４）に示すように互いに近接離間する方向に同期して横移動できるようになっている。そして、その際には支持台３１も共に移動するようになっている。   As shown in FIG. 1, a pair of guide rails are provided on the slider plate 23 in parallel with each other in a direction perpendicular to the paper surface, and the slider legs 33 of the support base 31 are provided on the pair of guide rails. Are slidably engaged, and the support base 31 is movable with respect to the slider plate 23 in a direction perpendicular to the paper surface. On the other hand, an opening / closing motor 35 is installed on the slider plate 23 on the front support 31, and an opening / closing screw 37 is connected to the opening / closing motor 35 as shown in FIG. 4. The open / close screw 37 is formed so that both ends have a reverse screw relationship with each other, and both ends are screwed with plate-like nuts 39 respectively. The plate-like nuts 39 are connected to the vertical frame members 11 of the frame machine base located on both sides. With this configuration, the pair of plate-like nuts 39, 39 are moved toward and away from each other as shown by the white arrow (FIG. 4) together with the holding member group 3 installed on the slider plate 23 by driving the opening / closing motor 35. It can be moved horizontally in synchronization with the direction. At that time, the support base 31 is also moved together.

上記した２種類の駆動機構で、横方向間隔変更手段が構成されている。この駆動機構は互いに独立に駆動できるので、ハンガーに吊下げられたワークＷが一方側に突出している場合にも、パイプ部５がワークＷに接触しない範囲で両側から最接近した状態で横方向からワークＷに対峙させることができる。   The two types of drive mechanisms described above constitute a lateral interval changing means. Since the drive mechanisms can be driven independently from each other, even when the workpiece W suspended on the hanger protrudes on one side, the horizontal direction is maintained in the state where the pipe portion 5 is closest to both sides within a range not contacting the workpiece W. Can be confronted with the workpiece W.

図１において正面から奥側に向かって、即ち紙面に直交する方向に向かって一対の回転軸４３が水平に並列しており、いずれも回転自在に支持台３１上に取り付けられている。図３に示すように、各回転軸４３の両端側にはそれぞれ歯車４５が連結されており、各回転軸４３の一端側はメカロックにより歯車４５が固定されているが、他端側はスプライン軸４４になっており、歯車４５は軸方向に摺動可能になっている。
一対の回転軸４３のそれぞれ正面側に連結された歯車４５、４５は互いに噛合い、それぞれ奥側に連結された歯車４５、４５も互いに噛合っている。そして、正面側の一方の回転軸４３には伸縮モーター４７が連結されている。 In FIG. 1, a pair of rotating shafts 43 are arranged horizontally in parallel from the front to the back, that is, in a direction orthogonal to the paper surface, and both are rotatably mounted on the support base 31. As shown in FIG. 3, gears 45 are connected to both ends of each rotating shaft 43, and one end of each rotating shaft 43 is fixed by a mechanical lock, while the other end is a spline shaft. 44, and the gear 45 is slidable in the axial direction.
The gears 45 and 45 connected to the front side of the pair of rotating shafts 43 mesh with each other, and the gears 45 and 45 connected to the back side also mesh with each other. A telescopic motor 47 is connected to the one rotary shaft 43 on the front side.

図１において、符号４９はアーム部材を示し、このアーム部材４９は細板状でなる軸部５１の下方側先端側に円弧状部５３の一端が連結されている。このアーム部材４９は正面側に一対、奥側に一対備えられており、各一対のアーム部材４９は円弧状部５３が互いに対向している。
アーム部材４９の軸部５１には所定の間隔をあけて４本のピン５５、５５、５５、５５が一列に取り付けられ、このピン５５の軸が上記した保持部材群３ａ、３ｂ、３ｃ、３ｄの横長穴７ａ、７ｂ、７ｃ、７ｄにそれぞれ嵌め込まれ、その下方では、ピン５７の軸は保持部材群３ｅに回動自在に連結されている。従って、アーム部材４９はピン５７を支点として回動自在となっている。 In FIG. 1, reference numeral 49 denotes an arm member, and the arm member 49 has one end of an arc-shaped portion 53 connected to the lower end side of a shaft portion 51 having a thin plate shape. A pair of arm members 49 are provided on the front side and a pair on the back side, and the arc-shaped portions 53 of the pair of arm members 49 face each other.
Four pins 55, 55, 55, 55 are attached to the shaft portion 51 of the arm member 49 in a row at a predetermined interval, and the shaft of the pin 55 serves as the holding member group 3 a, 3 b, 3 c, 3 d described above. Are inserted into the horizontally elongated holes 7a, 7b, 7c, and 7d, respectively, and below that, the shaft of the pin 57 is rotatably connected to the holding member group 3e. Therefore, the arm member 49 is rotatable about the pin 57 as a fulcrum.

アーム部材４９の円弧状部５３の外周には歯５４が形成されており、この歯５４は上記した歯車４５と噛合っている。
従って、正面側と奥側でそれぞれ噛合った２組の一対のアーム部材４９があるが、各一対の互いに噛合ったアーム部材４９はそれぞれ時計周りと反時計周り、即ち互いに反対方向に回動するようになっており、ピン５５が横長穴７ａ、７ｂ、７ｃ、７ｄの内側縁に当たるまで保持部材群３ａ、３ｂ、３ｃ、３ｄをそれぞれ上方に持ち上げることになる。そして、その限界は縦フレーム部材１１の縦長穴１３の上側縁に規制される。一方、ピン５５が横長穴７ａ、７ｂ、７ｃ、７ｄの外側縁に当たるまで保持部材群３ａ、３ｂ、３ｃ、３ｄをそれぞれ下方に下げられることになる。そして、その限界は縦フレーム部材１１の縦長穴１３の下側縁に規制される。
このようにして、アーム部材４９の回動により各保持部材群３ａ、３ｂ、３ｃ、３ｄの水平方向高さが決定され、縦フレーム部材１１の縦長穴１３に嵌り込んだピン１５によってその高さが安定的に維持されることとなる。 Teeth 54 are formed on the outer periphery of the arc-shaped portion 53 of the arm member 49, and the teeth 54 mesh with the gear 45 described above.
Therefore, there are two pairs of arm members 49 that mesh with each other on the front side and the back side, but each pair of arm members 49 that mesh with each other rotate clockwise and counterclockwise, that is, in opposite directions. The holding member groups 3a, 3b, 3c, and 3d are lifted upward until the pin 55 hits the inner edge of the horizontally long holes 7a, 7b, 7c, and 7d. The limit is restricted to the upper edge of the longitudinal elongated hole 13 of the longitudinal frame member 11. On the other hand, the holding member groups 3a, 3b, 3c, and 3d are lowered downward until the pin 55 hits the outer edge of the horizontally long holes 7a, 7b, 7c, and 7d. And the limit is regulated by the lower edge of the longitudinal elongated hole 13 of the longitudinal frame member 11.
In this manner, the horizontal heights of the holding member groups 3a, 3b, 3c, and 3d are determined by the rotation of the arm member 49, and the heights thereof are determined by the pins 15 that are fitted into the vertical long holes 13 of the vertical frame member 11. Will be maintained stably.

図１、図４はアーム部材４９のピン５５が横長穴７ａ、７ｂ、７ｃ、７ｄのそれぞれの内側縁に当接しさらに限界まで上方に押したときを示しており、保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅどうしの上下方向の間隔が最も大きくなって、保持部材群３ａ、３ｂ、３ｃ、３ｄが保持部材群３ｅから上方に最大限伸びた状態になっている。
一方、図２、図５はアーム部材４９のピン５５が横長穴７ａ、７ｂ、７ｃ、７ｄのそれぞれの外側縁に当接しさらに限界まで下方に押したときを示しており、保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅどうしの上下方向の間隔が最も小さくなって、保持部材群３ａ、３ｂ、３ｃ、３ｄが保持部材群３ｅに向かって下方に最大限収縮した状態になっている。 1 and 4 show a state in which the pin 55 of the arm member 49 is in contact with the inner edge of each of the horizontally long holes 7a, 7b, 7c and 7d and further pushed upward to the limit, and the holding member groups 3a, 3b, The intervals in the vertical direction between 3c, 3d, and 3e are the largest, and the holding member groups 3a, 3b, 3c, and 3d are in a state of extending to the maximum from the holding member group 3e.
On the other hand, FIGS. 2 and 5 show the case where the pin 55 of the arm member 49 is in contact with the outer edge of each of the horizontally long holes 7a, 7b, 7c and 7d and further pushed downward to the limit. 3b, 3c, 3d, and 3e have the smallest vertical distance, and the holding member groups 3a, 3b, 3c, and 3d are in a state of being maximally contracted downward toward the holding member group 3e.

図３に示すように、中心移動モーター２９や開閉モーター３５の駆動により、保持部材群３と共にアーム部材４９も回転軸４３の軸方向を移動するが、歯車４５を設置した支持台３１も軸方向に同期して移動するので、歯車４５も噛合っているアーム部材４９と共にその噛合い状態を維持しながら移動する。そのため、上記した２つの横移動の駆動機構とこの上下移動の駆動機構は互いに独立して働かせることができる。
従って、誘導加熱装置１によれば、ワークＷの大きさに応じて加熱状態を最適に実現することができる。 As shown in FIG. 3, the arm member 49 moves together with the holding member group 3 in the axial direction of the rotating shaft 43 by driving the center moving motor 29 and the opening / closing motor 35, but the support base 31 provided with the gear 45 is also axially moved. Therefore, the gear 45 moves together with the meshed arm member 49 while maintaining the meshed state. Therefore, the two lateral movement drive mechanisms and the vertical movement drive mechanism described above can be operated independently of each other.
Therefore, according to the induction heating device 1, the heating state can be optimally realized according to the size of the workpiece W.

次に、誘導加熱装置１の動作を説明する。
先ず、ワークＷの上下方向の長さに応じて、保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅどうしの上下方向の間隔が調整される。また、ワークＷの横方向の長さと、ハンガーに吊り下げされたワークの横方向一方側への偏った突出度合がある場合にはそれを考慮して、対向する保持部材群３どうしの横方向、すなわち水平方向の対向間隔と保持部材群３、３の横方向の設置位置とが調整される。上下方向の間隔については、例えば、Ｗ１のように、上下方向に長い場合には、図４に示すように、保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅは伸長して離間し、Ｗ２のように、上下方向に短い場合には、図５に示すように、保持部材群３ａ、３ｂ、３ｃ、３ｄ、３ｅは収縮して集まる。
その後、誘導加熱を開始すると、ハンガー（図示省略）に吊下げられてワークＷ、Ｗ、‥‥が、対向するパイプ部５、５どうしの間の通過経路に、順次一定の送り速度で搬送されてくる。 Next, operation | movement of the induction heating apparatus 1 is demonstrated.
First, the vertical spacing between the holding member groups 3a, 3b, 3c, 3d, and 3e is adjusted according to the vertical length of the workpiece W. Further, if there is a lateral length of the workpiece W and a degree of protrusion of the workpiece suspended on the hanger in the lateral direction, the lateral direction between the holding member groups 3 facing each other is considered. That is, the horizontal facing interval and the horizontal installation position of the holding member groups 3 and 3 are adjusted. With respect to the vertical interval, for example, when it is long in the vertical direction as in W1, as shown in FIG. 4, the holding member groups 3a, 3b, 3c, 3d, and 3e extend and are separated from each other. Thus, when the vertical direction is short, as shown in FIG. 5, the holding member groups 3a, 3b, 3c, 3d, and 3e are contracted and gathered.
After that, when induction heating is started, the workpieces W, W,... Are suspended on a hanger (not shown) and are sequentially conveyed at a constant feed speed to the passage path between the opposing pipe portions 5, 5. Come.

以上、本発明の実施の形態を説明したが、本発明の具体的構成が上記の実施の形態に限定されるものではなく、本発明の要旨から外れない範囲での設計変更があっても本発明に含まれる。
例えば、金属塗装品の焼き付け乾燥だけでなく、ロー付け、焼き嵌め等にも利用できる。 Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to the above-described embodiment, and even if there is a design change within a range not departing from the gist of the present invention. Included in the invention.
For example, it can be used not only for baking and drying of metal coated products but also for brazing and shrink fitting.

本発明の誘導加熱装置によれば、消費エネルギーの削減、さらには省スペース化及びコストの低減も図れる。また、設置にスペースを取らず、消費エネルギーやＣＯ２排出量も少なくて済む。 According to the induction heating apparatus of the present invention, energy consumption can be reduced, and further, space saving and cost reduction can be achieved. Moreover, installation space is not required, and energy consumption and CO 2 emission amount can be reduced.

１‥‥誘導加熱装置 ３ａ〜３ｅ‥‥保持部材群
５ａ〜５ｅ‥‥パイプ部 ７‥‥横長穴
９‥‥水平バー部材 １１‥‥縦フレーム部材
１３‥‥縦長穴 １５‥‥ピン
１７‥‥ボルト １９‥‥スライド台
２１‥‥脚部 ２３‥‥スライダー板
２５‥‥ナット部材 ２７‥‥移動ネジ
２９‥‥中心移動モーター ３１‥‥支持台
３３‥‥スライダー脚 ３５‥‥開閉モーター
３７‥‥開閉ネジ ３９‥‥板状ナット
４３‥‥回転軸 ４５‥‥歯車
４７‥‥伸縮モーター ４９‥‥アーム部材
５１‥‥軸部
５３‥‥円弧状部 ５４‥‥（円弧状部の）歯
５５‥‥ピン ５７‥‥ピン
Ｗ‥‥ワーク Ｃ‥‥中心軸 DESCRIPTION OF SYMBOLS 1 ... Induction heating device 3a-3e ... Holding member group 5a-5e ... Pipe part 7 ... Horizontally long hole 9 ... Horizontal bar member 11 ... Vertical frame member 13 ... Vertically long hole 15 ... Pin 17 ... Bolt 19 ... Slide base 21 ... Leg 23 ... Slider plate 25 ... Nut member 27 ... Moving screw 29 ... Center moving motor 31 ... Support base 33 ... Slider leg 35 ... Opening / closing motor 37 ... Opening and closing screw 39 ... Plate nut 43 ... Rotating shaft 45 ... Gear 47 ... Telescopic motor 49 ... Arm member 51 ... Shaft part 53 ... Arc part 54 ... Teeth 55 (of the arc part) Pin 57 Pin W W Work C Center axis

Claims (4)

ワークを対向するコイル要素の間に通過させることで誘導加熱する誘導加熱装置において、
ワークの通過方向両側で上下方向に複数段にわたって水平方向に並列配置したコイル要素と、並列したコイル要素どうしの上下方向の対向間隔を変更する上下方向間隔変更手段とを備えることを特徴とする誘導加熱装置。 In an induction heating apparatus that performs induction heating by passing a workpiece between opposing coil elements,
Induction characterized by comprising coil elements arranged in parallel in the horizontal direction over a plurality of stages in the vertical direction on both sides of the workpiece passing direction, and vertical distance changing means for changing the vertical spacing between the parallel coil elements. Heating device. 請求項１に記載した誘導加熱装置において、
上下方向間隔変更手段は、ワークの通過方向両側でそれぞれ並列した各段のコイル要素をそれぞれ保持する複数の保持部材と、前記保持部材の一つには回動可能に連結され、その余の保持部材には保持部材側に設けられた長穴に摺動可能に係合したピンを介して連結されたアーム部材と、前記アーム部材の基端側に連結された回動手段とにより構成され、前記アーム部材の回動により前記複数の保持部材を上下方向に伸縮することで並列したコイル要素どうしの上下方向の対向間隔を変更することを特徴とする誘導加熱装置。 In the induction heating apparatus according to claim 1,
The vertical direction interval changing means is connected to a plurality of holding members respectively holding the coil elements of the respective stages arranged in parallel on both sides of the workpiece passing direction, and is rotatably connected to one of the holding members. The member is composed of an arm member connected via a pin slidably engaged with a long hole provided on the holding member side, and a rotating means connected to the base end side of the arm member, An induction heating apparatus characterized in that the opposing spacing in the vertical direction between the parallel coil elements is changed by extending and contracting the plurality of holding members in the vertical direction by the rotation of the arm member. 請求項２に記載した誘導加熱装置において、
上下方向間隔変更手段は、ワークの通過方向両側にそれぞれ一対のアーム部材を備え、回動手段は、ワークの通過方向に直交した状態で並列配置した一対の回転軸を備え、前記アーム部材は前記回転軸とそれぞれ噛合いを介して連結されていると共に、前記回転軸どうしも噛合いを介して連結されており、１本の回転軸の駆動回転によりワークの通過方向両側のそれぞれの一対のアーム部材を互いに反対方向に回動させることを特徴とする誘導加熱装置。 In the induction heating apparatus according to claim 2,
The vertical distance changing means includes a pair of arm members on both sides of the workpiece passing direction, the rotating means includes a pair of rotating shafts arranged in parallel in a state orthogonal to the workpiece passing direction, The rotating shafts are connected to each other through meshing, and the rotating shafts are also connected to each other via meshing, and a pair of arms on both sides in the passing direction of the workpiece by driving rotation of one rotating shaft. An induction heating device characterized in that members are rotated in opposite directions. 請求項３に記載した誘導加熱装置において、
回動手段では、１本の回転軸に対して両側のアーム部材に対応して一対の歯車が設けられ、前記回転軸に対して一方側は歯車が固定結合され、他方側では摺動可能に結合されており、さらに、ワークの通過方向両側の保持部材どうしの横方向の対向間隔を変更調整する横方向間隔変更手段が備えられて、前記横方向間隔変更手段により横方向の間隔が変更されたときには前記他方側の歯車が追従して前記回転軸上を摺動することを特徴とする誘導加熱装置。 In the induction heating apparatus according to claim 3,
In the rotating means, a pair of gears are provided corresponding to the arm members on both sides with respect to one rotating shaft, and the gears are fixedly coupled to one side with respect to the rotating shaft and slidable on the other side. Further, there is provided a lateral interval changing means for changing and adjusting the lateral facing distance between the holding members on both sides of the workpiece passing direction, and the lateral interval is changed by the lateral interval changing means. The induction heating device is characterized in that the other side gear follows and slides on the rotating shaft.
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JP2018045908A (en) * 2016-09-15 2018-03-22 日立建機株式会社 Coating drying device

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