JPH1197163A - Device for maintaining gap for positioning high frequency heating coil - Google Patents

Device for maintaining gap for positioning high frequency heating coil

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Publication number
JPH1197163A
JPH1197163A JP25820197A JP25820197A JPH1197163A JP H1197163 A JPH1197163 A JP H1197163A JP 25820197 A JP25820197 A JP 25820197A JP 25820197 A JP25820197 A JP 25820197A JP H1197163 A JPH1197163 A JP H1197163A
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Japan
Prior art keywords
heating coil
high
frequency heating
member
magnet
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JP25820197A
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Japanese (ja)
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JP3581537B2 (en
Inventor
Fukumi Hamaya
Yoshiaki Inoue
Ryuichiro Kikuji
Takayuki Kono
Kazuaki Ota
好章 井上
和昭 太田
隆之 河野
福巳 濱屋
隆一郎 菊次
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Mitsubishi Heavy Ind Ltd
三菱重工業株式会社
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Application filed by Mitsubishi Heavy Ind Ltd, 三菱重工業株式会社 filed Critical Mitsubishi Heavy Ind Ltd
Priority to JP25820197A priority Critical patent/JP3581537B2/en
Priority claimed from KR1019980039466A external-priority patent/KR100319651B1/en
Priority claimed from NO19984437A external-priority patent/NO312446B1/en
Publication of JPH1197163A publication Critical patent/JPH1197163A/en
Application granted granted Critical
Publication of JP3581537B2 publication Critical patent/JP3581537B2/en
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Application status is Expired - Fee Related legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To keep constant a gap between a high frequency heating coil and a member to be heated by placing a magnet around the coil while magnetizing the member so as to have the same polarity as that of the magnet, and floating the coil with the magnetic repulsion between the magnet and the magnet of the member to be heated. SOLUTION: This device has a magnet 11 placed on the outer periphery so as to surround a high frequency coil 2. A steel plate 1 being a member to be heated is magnetized with its surface facing the magnet 11 having the same polarity as that of the magnet 11. The coil 2 is thus constituted to maintain constant a gap with the steel plate 1 as it floats with the magnetic repulsion acting with the magnet of the steel plate 1. With the use of repulsion based on the magnetic force, no bad influence caused by evaporation of cooling water for a heating part as well as the radiated heat from the member to be heated is affected to thereby maintain the coil 2 in a good condition through a constant gap from the surface of the member to be heated, accordingly.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は高周波加熱コイルの設置間隙保持装置に関し、特に高周波加熱コイルと被加熱部材との間の間隙を一定に保持する場合に用いて有用なものである。 The present invention relates to relates to the installation distance holding device of the high frequency heating coil, it is useful with, especially when holding a gap between the high frequency heating coil and the heated member constant.

【0002】 [0002]

【従来の技術】一般に、鋼板等の板材の曲げ加工は、プレス装置等により行われるが、プレス装置では加工し難い複雑な形状の加工には、ガスバーナによる加熱曲げ加工方式が採用されている。 In general, bending of the plate material such as a steel plate is carried out by a press device or the like, in a press apparatus in the process of machining difficult complicated shape, heating the bending method is employed by the gas burner. ガスバーナによる作業は、騒音、熱気、燃焼ガス等に起因して作業環境が悪いという問題がある。 Working with gas burner, there is a problem noise, hot air, of poor work environment due to the combustion gas and the like. このため、最近では高周波誘導加熱も検討されている。 Thus, recently there has been studied a high-frequency induction heating. この高周波誘導加熱とは、電磁誘導作用により被加熱部材である例えば鋼板に渦電流を発生させ、 The high-frequency induction heating generates an eddy current, for example steel plate is heated member by electromagnetic induction,
このときの渦電流損を利用して加熱するものである。 It is to heat by utilizing an eddy current loss at this time. したがって、高周波誘導加熱には高周波加熱コイルが必要になる。 Therefore, high-frequency heating coil is required for high frequency induction heating.

【0003】図5は鋼板1等の平板状の被加熱部材をその上面より加熱するようにした高周波誘導加熱装置の一例を示すもので、高周波加熱コイル2が鋼板1と間隙Δ [0003] Figure 5 shows an example of a high frequency induction heating device in the plate-like member to be heated for 1 such steel to heat from the upper surface, the high frequency heating coil 2 is the steel plate 1 and a gap Δ
tで相対して移動装置4により矢印A方向に移動可能に設けられている。 It is provided movably in the direction of arrow A by the moving device 4 relative with t. この場合の間隙Δtは5mm程度である。 Gap Δt in this case is about 5mm. また、高周波加熱コイル2は鍔部3を介して棒状の支持腕5の下端に固着してあり、この支持腕5が移動装置4のガイド部4aに上下動可能に支持されている。 The high frequency heating coil 2 Yes by fixing the lower end of the bar-shaped support arm 5 via the flange portion 3, the support arm 5 is movable up and down in the guide portion 4a of the moving device 4. この結果、支持腕5はガイド部4aに案内されて垂直方向に直線的に移動する。 As a result, the supporting arm 5 is linearly moved in the vertical direction by being guided by the guide portions 4a. また、移動装置4は移動速度制御装置6にその移動速度を制御され、ガイドレール7に沿って水平方向に直線的に移動する。 The mobile device 4 is controlled the movement speed of the moving speed controlling device 6, moves linearly in the horizontal direction along the guide rail 7. なお、図中、8は整合トランス及び9は高周波電源である。 In the figure, 8 is aligned transformer and 9 is a high-frequency power source. かかる高周波誘導加熱装置で均一な所望の加熱を実現するには高周波加熱コイル2と鋼板1との間の間隙Δtを一定に保持することが肝要となる。 To achieve a uniform desired heating at such a high frequency induction heating apparatus becomes important to hold a gap Δt between the high frequency heating coil 2 and the steel sheet 1 constant. 鋼板1に対する入熱量は高周波加熱コイル2に供給する電流、その周波数及び高周波加熱コイル2の移動速度とともに前記間隙Δtがパラメータとなって一意に決定されるからである。 The amount of heat input to the steel sheet 1 is because current supplied to the high-frequency heating coil 2, the frequency and the gap Δt with the movement speed of the high-frequency heating coil 2 is uniquely determined in a parameter.

【0004】 [0004]

【発明が解決しようとする課題】上述の如く、高周波誘導加熱の場合には高周波加熱コイル2と鋼板1との間の間隙Δtを一定に保持する必要があるため、従来技術にかかる高周波誘導加熱装置では、高周波加熱コイル2の近傍にレーザセンサを付設し、このレーザセンサにより高周波加熱コイル2と鋼板1との距離を測定し、支持腕5を伸縮させて高周波加熱コイル2と鋼板1との間の間隙Δtを一定に保つようにしている。 As described above [0006], since in the case of high frequency induction heating, it is necessary to hold a gap Δt between the high frequency heating coil 2 and the steel sheet 1 constant, according to the prior art high-frequency induction heating in apparatus, attached to the vicinity of the high frequency heating coil 2 laser sensor by the laser sensor measures the distance between the high frequency heating coil 2 and the steel sheet 1, the support arm 5 by the expansion and contraction of the high-frequency heating coil 2 and the steel sheet 1 the gap Δt between have to keep constant. しかし、レーザセンサは高温や水蒸気に弱いため、例えば鋼板1の温度が800℃に上昇したときの輻射熱や、加熱した鋼板1を水冷したときに生じる水蒸気からレーザセンサを防護するのが難しいという問題がある。 However, since the laser sensor sensitive to high temperature and water vapor, for example, when the temperature rose to 800 ° C. of radiant heat and the steel plate 1, the heated steel plate 1 that it is difficult to protect the laser sensor from the steam generated when the water-cooled problem there is. 同時に、水蒸気によりレーザ光が乱され、測定誤差が生じるという問題もある。 At the same time, the laser light is disturbed by steam, there is a problem that a measurement error occurs.

【0005】本発明は、上記従来技術に鑑み、被加熱部材からの輻射熱及び水蒸気等により悪影響を受けることなく高周波加熱コイルと被加熱部材との間の間隙を良好に一定に保持することができる高周波加熱コイルの設置間隙保持装置を提供することを目的とする。 [0005] The present invention has been made in view of the above prior art, it can be maintained in good constant gap between the high frequency heating coil and the member to be heated without being adversely affected by radiation heat and water vapor and the like from the heated member and to provide an installation space holding device of the high-frequency heating coil.

【0006】 [0006]

【課題を解決するための手段】上記目的を達成する本発明の構成は次の点を特徴とする。 Configuration of the present invention to achieve the above object, according to an aspect of the the following features.

【0007】1) 高周波加熱コイルの周囲に磁石を配設する一方、被加熱部材をこの被加熱部材の前記磁石と相対向する表面がこの磁石と同極となるように磁化しておき、前記磁石と被加熱部材の磁石との磁気的な反発力で高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したこと。 [0007] 1) While disposing a magnet around the high frequency heating coil, leave magnetized to the magnet and opposed to the surface of the heated member to the member to be heated is the magnet and homopolar, the by being configured to hold a gap between the high frequency heating coil and the member to be heated constant floated a high-frequency heating coil in the magnetic repulsion between the magnets of the magnet and the member to be heated.

【0008】2) 高周波加熱コイルの周囲に磁石を配設する一方、被加熱部材の下方に磁力源を配設してこの磁力源により前記被加熱部材の前記磁石と相対向する表面がこの磁石と同極となるように磁化し、前記磁石と被加熱部材の磁石との磁気的な反発力で高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したこと。 [0008] 2) While disposing a magnet around the high frequency heating coil, the magnet and opposed to the surface of the heated member by the magnetic force source is disposed magnetic source below the member to be heated is the magnet to a magnetized such that the same polarity, to hold the gap between the high frequency heating coil and the member to be heated constant floated a high-frequency heating coil in the magnetic repulsion between the magnets of the magnet and the member to be heated that was constructed in.

【0009】3) 高周波加熱コイルの周囲にノズルを配設する一方、このノズルから被加熱部材の表面に向けて垂直下方に高圧空気等の高圧ガスを噴射し、このようにして噴射した高圧ガスによる反力により高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したこと。 [0009] 3) while disposing the nozzle around the high frequency heating coil, high-pressure gas from this nozzle toward the surface of the member to be heated by injecting high-pressure gas such as a high-pressure air vertically downward, and injected in this way configuration was that as floated a high-frequency heating coil to hold the gap between the high frequency heating coil and the member to be heated constant by the reaction force due.

【0010】4) 高周波加熱コイルの周囲に下方に向かって開口する開口部を有するカバーを配設し、このカバー内に高圧空気等の高圧ガスを供給する一方、前記開口部に相対向する被加熱部材の表面に向けて前記カバー内からその開口部を介して高圧ガスを噴射し、この噴射した高圧ガスによる反力により高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したこと。 [0010] 4) While the downward around the high frequency heating coil disposed to cover an opening portion that is opened, to supply the high-pressure gas such as a high-pressure air to the inside cover, the opposing to the opening toward the surface of the heating member by injecting a high pressure gas through the opening from the inner cover, the gap between the high frequency heating coil and the member to be heated floated a high-frequency heating coil by a reaction force caused by the injection with high pressure gas configuration was able to hold a constant.

【0011】 [0011]

【発明の実施の形態】以下本発明の実施の形態を図面に基づき詳細に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter basis of embodiments of the present invention with reference to the drawings will be described in detail. 本発明の実施の形態に係る高周波加熱コイルの設置間隙保持装置は図5に示す高周波誘導加熱装置に適用するものである。 Installation distance holding device of the high-frequency heating coil according to the embodiment of the present invention is applied to high-frequency induction heating apparatus shown in FIG. そこで、図5と同一部分には同一番号を付し、重複する説明は省略する。 Therefore, given the same numerals in FIG. 5, the same parts, and duplicate explanations are omitted.

【0012】図1は本発明の第1の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図である。 [0012] Figure 1 is a structural diagram showing an installation distance holding device of the high-frequency heating coil according to the first embodiment of the present invention. 同図に示すように、本形態に係る設置間隙保持装置は、高周波加熱コイル2を囲繞するようにその外周部に磁石11を配設したものである。 As shown in the figure, placed distance holding device according to the present embodiment is such that the magnet 11 is disposed on the outer peripheral portion so as to surround the high-frequency heating coil 2. 磁石11は鍔部3に固着してある。 Magnet 11 are fixed to the flange portion 3. 一方、被加熱部材である鋼板1は磁石11 Meanwhile, the steel sheet 1 is heated member magnet 11
と相対向する表面が磁石11と同極となるように磁化されている。 Opposing surface and is magnetized such that the magnet 11 and the homopolar. かくして高周波加熱コイル2は鋼板1の磁石との間で働く磁気的な反発力により浮いて鋼板1との間の間隙を一定に保持するように構成してある。 Thus the high-frequency heating coil 2 is arranged to hold the gap between the steel plate 1 floats by magnetic repulsion force acting between the magnets of the steel plate 1 constant.

【0013】図2は本発明の第2の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図である。 [0013] FIG. 2 is a structural view showing an installation distance holding device of the high-frequency heating coil according to the second embodiment of the present invention. 同図に示すように、本形態に係る設置間隙保持装置は、図1に示す第1の実施の形態に対し、鋼板1の下方に磁力源12を配設した点が異なる。 As shown in the figure, placed distance holding device according to the present embodiment, for the first embodiment shown in FIG. 1, the point which is disposed a magnetic source 12 to the lower steel plate 1 differs. この磁力源12は鋼板1を磁化し、この結果鋼板1の前記磁石11と相対向する表面がこの磁石11と同極となるように磁化する。 This magnetic source 12 magnetizes the steel plate 1, the magnet 11 and the opposing surface of the result steel sheet 1 is magnetized so that the magnet 11 and homopolar. かくして高周波加熱コイル2は、第1の実施の形態と同様に、鋼板1の磁石との間で働く磁気的な反発力により浮いて鋼板1との間の間隙を一定に保持する。 Thus the high-frequency heating coil 2, as in the first embodiment, to hold the gap between the steel plate 1 floats by magnetic repulsion force acting between the magnets of the steel plate 1 constant. また、鋼板1の磁石11と相対向する部分が常に良好に磁化されるように、磁力源12は、高周波加熱コイル2の移動に伴い磁石11の下方に位置するよう高周波加熱コイル2の移動に同期して移動するように構成してある。 Also, as a portion which faces the magnet 11 of the steel plate 1 is always satisfactorily magnetized, the magnetic force source 12, the movement of the high frequency heating coil 2 to be positioned below the moving in with magnet 11 of the high-frequency heating coil 2 synchronously it is arranged to move.

【0014】図3は本発明の第3の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図である。 [0014] FIG. 3 is a structural view showing an installation distance holding device of the high-frequency heating coil according to the third embodiment of the present invention. 同図に示すように、本形態に係る設置間隙保持装置は、高周波加熱コイル2の周囲に複数のノズル13を配設する一方、このノズル13から鋼板2の表面に向けて垂直下方に高圧空気16を噴射し、このようにして噴射した高圧空気16による反力により高周波加熱コイル2 As shown in the figure, placed distance holding device according to the present embodiment, while arranging a plurality of nozzles 13 around the high-frequency heating coil 2, the high pressure air from the nozzle 13 vertically downward toward the surface of the steel plate 2 16 by injecting, the high-frequency heating coil 2 by the reaction force due to high pressure air 16 that is injected in this way
を浮かして高周波加熱コイル2と鋼板1との間の間隙を一定に保持するように構成したものである。 The floated those configured to hold a gap between the high frequency heating coil 2 and the steel sheet 1 constant. ここでノズル13は鍔部3に固着してある。 Here the nozzle 13 are secured to the flange portion 3.

【0015】図4は本発明の第4の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図である。 [0015] FIG. 4 is a structural view showing an installation distance holding device of the high-frequency heating coil according to the fourth embodiment of the present invention. 同図に示すように、本形態に係る設置間隙保持装置は、高周波加熱コイル2をカバー13で覆合したものである。 As shown in the figure, placed distance holding device according to the present embodiment is obtained combined covering the high-frequency heating coil 2 with a cover 13. カバー13は下方に向かって開口する開口部を有するとともに、その上部を鍔部3に固着してある。 Cover 13 which has an opening which opens downward, it is secured to the upper collar portion 3. また、カバー14はその上面の一部を貫通してこのカバー14に取り付けられたパイプ15を介してカバー14の内部に高圧空気16を供給する一方、前記開口部に相対向する鋼板1の表面に向けて当該カバー13内に高圧空気16を噴射し、この噴射した高圧空気16による反力により高周波加熱コイル2を浮かして高周波加熱コイル2と鋼板1との間の間隙を一定に保持するように構成してある。 The cover 14 is inside while supplying high pressure air 16, the surface of the steel plate 1 which faces the opening of the cover 14 through the pipe 15 attached to the cover 14 through a portion of the upper surface to inject high pressure air 16, to hold the gap between the high frequency heating coil 2 and the steel sheet 1 floated high frequency heating coil 2 by the reaction force due to high pressure air 16 that the injection constant to the cover 13 toward the It is configured to.

【0016】上述の如き実施の形態中、第1及び第2の実施の形態において磁石11は永久磁石又は電磁石の何れでもよいが、電流により磁力を任意に変えることができるという制御性を考慮すれば電磁石の方が好適である。 [0016] In embodiments of the above such embodiments, the magnet 11 in the first and second embodiments may be either permanent magnets or electromagnets, in view of the controllability that can arbitrarily change the magnetic force by the current if the people of the electromagnet is preferred. また、第1〜第4の実施の形態においては、図示はしないが高周波加熱コイル2の位置をセンサにより計測しており、このときの位置情報に基づき高周波加熱コイル2の鋼板1に対する位置を検知して両者の間隙が一定になるように制御している。 Further, in the first to fourth embodiments, although not shown are measured by the sensor the position of the high frequency heating coil 2, detecting the position relative to the steel plate 1 of the high-frequency heating coil 2 on the basis of the positional information at this time and both the gap and is controlled to be constant. この制御は、第1の実施の形態の場合には、磁石11若しくは鋼板1の磁力を、第2の実施の形態の場合には磁石11若しくは磁力源12 This control, in the case of the first embodiment, the magnetic force of the magnet 11 or the steel plate 1, in the case of the second embodiment the magnet 11 or magnetic force source 12
の磁力を前記位置情報に基づいてそれぞれフィードバック制御することにより実現できる。 The magnetic force can be realized by a feedback controlled based on the position information. また、第3の実施の形態及び第4の実施の形態の場合には高圧空気16の噴射量若しくは噴射圧力を前記位置情報に基づいてそれぞれフィードバック制御することにより実現できる。 Moreover, it can be realized by feedback controlled based injection quantity or the injection pressure of the high pressure air 16 on the position information in the case of the third embodiment and the fourth embodiment. この制御に伴う高周波加熱コイル2の上下動の際にはガイド部4a(図5参照)が支持腕5の上下動を案内することで所定の垂直軸に沿い良好に行われる。 This in the case of vertical movement is high-frequency heating coil 2 with the control guide portion 4a (see FIG. 5) is carried out satisfactorily along the predetermined vertical axis by guiding the vertical movement of the support arm 5.

【0017】 [0017]

【発明の効果】以上実施の形態とともに詳細に説明した通り、本発明によれば、磁力に基づく反発力又は高圧ガスの噴射による反発力を利用したので、被加熱部材からの輻射熱及び加熱部の冷却水の蒸発に伴う水蒸気等により悪影響を受けることなく高周波加熱コイルを被加熱部材の表面から一定の間隙を介して良好に保持することができる。 As described in detail with above embodiment according to the present invention forms, according to the present invention, since the use of the repulsive force due to the injection of the repulsive force or high-pressure gas based on the magnetic force, the radiant heat and the heating portion from the heated member the high-frequency heating coil without being adversely affected by steam or the like due to the evaporation of the cooling water can be maintained satisfactorily over a fixed gap from the surface of the heated member. このため、均一な被加熱部材の加熱を実現することができる。 Therefore, it is possible to realize the heating of the homogeneous heated member.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図。 [1] structural diagram showing an installation distance holding device of the high-frequency heating coil according to the first embodiment of the present invention.

【図2】本発明の第2の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図。 [Figure 2] structural view showing an installation distance holding device of the high-frequency heating coil according to the second embodiment of the present invention.

【図3】本発明の第3の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図。 [Figure 3] structural diagram showing an installation distance holding device of the high-frequency heating coil according to the third embodiment of the present invention.

【図4】本発明の第4の実施の形態に係る高周波加熱コイルの設置間隙保持装置を示す構造図。 Structural diagram showing an installation distance holding device of the high-frequency heating coil according to the fourth embodiment of the present invention; FIG.

【図5】従来技術にかかる高周波誘導加熱装置を概念的に示す説明図。 Figure 5 is an explanatory view conceptually showing a high-frequency induction heating apparatus according to the prior art.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 鋼板 2 高周波加熱コイル 11 磁石 12 磁力源 13 ノズル 14 カバー 16 高圧空気 1 steel plate 2 high-frequency heating coil 11 magnet 12 magnetic source 13 nozzles 14 cover 16 high pressure air

フロントページの続き (72)発明者 太田 和昭 長崎県長崎市飽の浦町1番1号 三菱重工 業株式会社長崎造船所内 (72)発明者 濱屋 福巳 長崎県長崎市飽の浦町1番1号 三菱重工 業株式会社長崎造船所内 Of the front page Continued (72) inventor Kazuaki Ota Nagasaki, Nagasaki Prefecture Akunoura-cho, No. 1 No. 1 Mitsubishi Heavy Industry Co., Ltd. in Nagasaki Shipyard & Machinery Works (72) inventor Hamaya Fukumi Nagasaki, Nagasaki Prefecture Akunoura-cho, No. 1 No. 1 Mitsubishi in the Heavy industry Co., Ltd. Nagasaki Shipyard

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 高周波加熱コイルの周囲に磁石を配設する一方、被加熱部材をこの被加熱部材の前記磁石と相対向する表面がこの磁石と同極となるように磁化しておき、前記磁石と被加熱部材の磁石との磁気的な反発力で高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したことを特徴とする高周波加熱コイルの設置間隙保持装置。 1. A while disposing the magnet around the high frequency heating coil, leave magnetized to the magnet and opposed to the surface of the heated member to the member to be heated is the magnet and homopolar, the high-frequency heating coil, characterized by being configured to hold a gap between the magnetic repulsive force floated high frequency heating coil high-frequency heating coil and the member to be heated of the magnet of the magnet and the member to be heated constant installation gap holding device.
  2. 【請求項2】 高周波加熱コイルの周囲に磁石を配設する一方、被加熱部材の下方に磁力源を配設してこの磁力源により前記被加熱部材の前記磁石と相対向する表面がこの磁石と同極となるように磁化し、前記磁石と被加熱部材の磁石との磁気的な反発力で高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したことを特徴とする高周波加熱コイルの設置間隙保持装置。 Wherein while disposing the magnet around the high frequency heating coil, the magnet and opposed to the surface of the heated member by the magnetic force source is disposed magnetic source below the member to be heated is the magnet to a magnetized such that the same polarity, to hold the gap between the high frequency heating coil and the member to be heated constant floated a high-frequency heating coil in the magnetic repulsion between the magnets of the magnet and the member to be heated installation distance holding device of the high frequency heating coil, characterized by being configured to.
  3. 【請求項3】 高周波加熱コイルの周囲にノズルを配設する一方、このノズルから被加熱部材の表面に向けて垂直下方に高圧空気等の高圧ガスを噴射し、このようにして噴射した高圧ガスによる反力により高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したことを特徴とする高周波加熱コイルの設置間隙保持装置。 3. While disposing the nozzle around the high frequency heating coil, high-pressure gas from this nozzle toward the surface of the member to be heated by injecting high-pressure gas such as a high-pressure air vertically downward, and injected in this way installation distance holding device of the high frequency heating coil, characterized by being configured so as to hold the gap constant between the high frequency heating coil and the member to be heated floated a high-frequency heating coil by the reaction force due.
  4. 【請求項4】 高周波加熱コイルの周囲に下方に向かって開口する開口部を有するカバーを配設し、このカバー内に高圧空気等の高圧ガスを供給する一方、前記開口部に相対向する被加熱部材の表面に向けて前記カバー内からその開口部を介して高圧ガスを噴射し、この噴射した高圧ガスによる反力により高周波加熱コイルを浮かして高周波加熱コイルと被加熱部材との間の間隙を一定に保持するように構成したことを特徴とする高周波加熱コイルの設置間隙保持装置。 4. A downward around the high frequency heating coil disposed to cover an opening portion that is opened while supplying a high pressure gas such as high-pressure air to the inside cover, opposing the opening to be toward the surface of the heating member by injecting a high pressure gas through the opening from the inner cover, the gap between the high frequency heating coil and the member to be heated floated a high-frequency heating coil by a reaction force caused by the injection with high pressure gas installation distance holding device of the high frequency heating coil, characterized by being configured to so as to hold constant.
JP25820197A 1997-09-24 1997-09-24 Installation distance holding device of the high-frequency heating coil Expired - Fee Related JP3581537B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25820197A JP3581537B2 (en) 1997-09-24 1997-09-24 Installation distance holding device of the high-frequency heating coil

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
JP25820197A JP3581537B2 (en) 1997-09-24 1997-09-24 Installation distance holding device of the high-frequency heating coil
KR1019980039466A KR100319651B1 (en) 1997-09-24 1998-09-23 Automatic plate bending system using high frequency induction heating
NO19984437A NO312446B1 (en) 1997-09-24 1998-09-23 Automatic plateböyingssystem using high frequency induction heating
EP03028969A EP1439012A1 (en) 1997-09-24 1998-09-24 Automatic plate bending system using high frequency induction heating
EP01112142A EP1129798B1 (en) 1997-09-24 1998-09-24 Automatic plate bending system using high frequency induction heating
DK98118163T DK0904866T3 (en) 1997-09-24 1998-09-24 Automatic plate bending system using high frequency induction heating
US09/159,761 US6002118A (en) 1997-09-19 1998-09-24 Automatic plate bending system using high frequency induction heating
DK01112142T DK1129798T3 (en) 1997-09-24 1998-09-24 Automatic plate bending system using höjfrekvensinduktionsopvarmning
DE1998607017 DE69807017T2 (en) 1997-09-24 1998-09-24 An automatic plate bending system using high frequency induction heating
DE69828653T DE69828653T2 (en) 1997-09-24 1998-09-24 An automatic plate bending system using high frequency induction heating
EP19980118163 EP0904866B1 (en) 1997-09-24 1998-09-24 Automatic plate bending system using high frequency induction heating
US09/298,057 US6064046A (en) 1997-09-24 1999-04-22 Clearance retaining system for a high frequency heating coil
NO20020501A NO20020501D0 (en) 1997-09-24 2002-01-31 Automatic plateböyingssystem using high frequency induction heating

Publications (2)

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JPH1197163A true JPH1197163A (en) 1999-04-09
JP3581537B2 JP3581537B2 (en) 2004-10-27

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