JPS583276Y2 - induction heating device - Google Patents
induction heating deviceInfo
- Publication number
- JPS583276Y2 JPS583276Y2 JP1977037445U JP3744577U JPS583276Y2 JP S583276 Y2 JPS583276 Y2 JP S583276Y2 JP 1977037445 U JP1977037445 U JP 1977037445U JP 3744577 U JP3744577 U JP 3744577U JP S583276 Y2 JPS583276 Y2 JP S583276Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- heated
- induction heating
- coil pieces
- pieces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Processes Specially Adapted For Manufacturing Cables (AREA)
- General Induction Heating (AREA)
Description
【考案の詳細な説明】
本考案は導体としての芯線外周に熱可塑性樹脂を被覆し
たケーブル等の誘導加熱装置に関するものである。[Detailed Description of the Invention] The present invention relates to an induction heating device for a cable or the like in which the outer periphery of a core wire serving as a conductor is coated with thermoplastic resin.
従来、Ｌ記の如きケーブルの未加硫被覆を加硫する場合
には、芯線を高周波誘導加熱により予熱する手段が採ら
れており、そしてこの予熱に際しては、ケーブルを一定
巻径のコイル内に通して当該芯線を加熱するようにして
いた。Conventionally, when vulcanizing the unvulcanized coating of a cable such as L, a method has been adopted in which the core wire is preheated by high-frequency induction heating, and during this preheating, the cable is placed in a coil with a constant winding diameter. The core wire was heated by passing it through the core wire.
このようにして芯線を加熱する場合、コイルを芯線に可
及的に近接させることが重要であり、両者が大きく離間
した状態で゛は誘導加熱効率が低下することになるが、
従来ではケーブル径ごとに異なる巻径のコイルと交換す
る面倒さがら、汎用ケーブル径の最大値に合せてコイル
径を設定しており、このため、ケーブル径の小さいもの
では特に誘導加熱効率が低下していた。When heating the core wire in this way, it is important to place the coil as close to the core wire as possible, and if the two are far apart, the induction heating efficiency will decrease.
Conventionally, the coil diameter was set to match the maximum diameter of a general-purpose cable to avoid the hassle of replacing coils with different winding diameters for each cable diameter, and as a result, induction heating efficiency decreased, especially for cables with small diameters. was.
本考案は上記の問題点を解消するため、コイルによって
形成される被加熱体用の通道径を一定の範囲内において
調整可能にすると共に該コイルの交換操作も簡便にし、
これにより被加熱体の径に対応した効率のよい誘導加熱
が実現できるようにしたものであって、以下その構成を
図示の実施例により説明する。In order to solve the above problems, the present invention makes it possible to adjust the diameter of the passage for the heated body formed by the coil within a certain range, and also makes it easy to replace the coil.
This makes it possible to realize efficient induction heating corresponding to the diameter of the object to be heated, and the configuration thereof will be explained below with reference to the illustrated embodiment.
図において、ｌａ、ｌｂは平面から見て略四角形（第１
図参照）、側面から見て半円形などの円弧形（第２図参
照）となるように屈曲形成された上下一対の分割コイル
片であって、両分側コイル片１ａ、ｌｂはＸ側の線路群
とＹ側の線路群との間隔Ｚが充分広くなるように設定さ
れており、がっ、その端子間には高周波電源２が接続さ
れている。In the figure, la and lb are approximately quadrangular shapes (the first
(see figure), a pair of upper and lower split coil pieces bent to form an arc shape such as a semicircle (see figure 2) when viewed from the side, with both coil pieces 1a and lb on the X side. The distance Z between the line group on the Y side and the line group on the Y side is set to be sufficiently wide, and a high frequency power source 2 is connected between the terminals.
さらに両分側コイル片１ａｊｂは第３図で示すようにセ
ラミック等の非磁性体よりなる割型筒体３ａ、３ｂに内
接あるいは朴接もしくは埋設状態で支持され、かつ該割
型筒体３ ａ 、３ ｂが筒状に対向して配置されるこ
とにより、その包囲空間内には両分側コイル片１ａ、ｌ
ｂによる被加熱体Ａの通道４が形成される。Furthermore, as shown in FIG. 3, the coil pieces 1ajb on both sides are supported in the split cylinder bodies 3a and 3b made of a non-magnetic material such as ceramics in a state of being inscribed, in contact with each other, or in a buried state. By arranging the coil pieces 1a and 3b facing each other in a cylindrical shape, the coil pieces 1a and 3b on both sides are arranged in the surrounding space.
A passage 4 for the heated body A is formed by b.
そして上記の実施例からなる本考案では、第１図の矢印
で示すように高周波電源２がら電流を流すが、この場合
第２図の矢印ａ、ｌ）の通り各分割コイル片１ａ、ｌｂ
に流れる電流が、端面がら見て同一巡回方向となるよう
にし、がつ両分側コイル片１ａｊｂによる通道４内にケ
ーブル等の被加熱体Ａを通して内部導体などを加熱する
のである。In the present invention consisting of the above-described embodiment, a current is passed through the high frequency power source 2 as shown by the arrows in FIG. 1. In this case, as shown by the arrows a and l in FIG.
The current flowing through the coils is made to flow in the same circulation direction when viewed from the end face, and heats the internal conductor etc. by passing the heated object A such as a cable into the path 4 formed by the coil pieces 1ajb on both sides.
この際、両分側コイル片１ａ、ｌｂによって被加熱体Ａ
に誘起される渦電流は、該分割コイル片１ａまたは１ｂ
が一方しかない場合を仮定するときわめて弱いものとな
るが、図示のように両分割コイル片１ａ、ｌｂを対向さ
せ、かつ、これらに流す電流の向きを前記のように同一
にすると、被加熱体Ａにはその全周にわたり、各分割コ
イル片１ａ。At this time, the heated object A is heated by the coil pieces 1a and lb on both sides.
The eddy current induced in the divided coil piece 1a or 1b
If we assume that there is only one side of the coil, it will be extremely weak, but if the two split coil pieces 1a and 1b are made to face each other as shown in the figure, and the direction of the current flowing through them is the same as described above, the object to be heated will be A has each divided coil piece 1a over its entire circumference.
１ｂの電流が存在することになり、従って通常の螺旋巻
きコイルに電流を流したと同等の誘導加熱が行なえるの
である。A current of 1b is present, and therefore induction heating can be performed in the same manner as when a current is passed through a normal spirally wound coil.
さらに、径の異なる各種の被加熱体Ａを加熱する場合で
も、該被加熱体Ａの径が一定範囲内にあれば、その都度
コイル交換せずとも、筒割状に対向している両分割コイ
ル片１ａ、ｌｂの該対向間隔を調整することにより、こ
れら分割コイル片１ａ。Furthermore, even when heating various objects A with different diameters, as long as the diameter of the object A is within a certain range, there is no need to replace the coil each time. These divided coil pieces 1a can be formed by adjusting the opposing distance between the coil pieces 1a and lb.
１ｂを各被加熱体外周に可及的に近接させることができ
、また、被加熱体Ａの径が一定範囲をこえる場合でも、
型割り開閉も可能な両分割コイル片１ａ、ｌｂであるか
ら、これらの開閉操作により、被加熱体の走行を停止せ
ずども新たなコイルと簡単に交換できるのである。1b can be brought as close as possible to the outer periphery of each heated object, and even if the diameter of the heated object A exceeds a certain range,
Since the two divided coil pieces 1a and lb can be opened and closed by molding, the coil can be easily replaced with a new coil by opening and closing these operations without stopping the running of the object to be heated.
なお、図示の実施例では曲面状とした分割コイル片を二
、つ用いて通道を形成しているが、三つ以−ヒの分割コ
イル片を用いて当該通道を形成しても上記と同等の効果
が得られ、また、各分割コイル片の曲面率も被加熱体の
注形に応じ、加熱効率のよい形状が選定される。Note that in the illustrated embodiment, the passage is formed using two split coil pieces with curved surfaces, but the same result as described above may be obtained even if the passage is formed using three or more split coil pieces. In addition, the curved surface ratio of each divided coil piece is selected according to the shape of the object to be heated, and a shape with good heating efficiency is selected.
以上説明した通り、本考案によれば、平面略長方形、側
面円弧形とした複数の分割コイル片はそれぞれ矩形環状
コイルよりなり、これら分割コイル片を筒状となるよう
に型合せしてその包囲空間内に被加熱体の通道を形威し
、各コイル片には互いに隣接する線相互に電流の対向流
が生じないよう、かつ、被加熱体の外周に沿う同一巡回
方向となる電流が流れるよう、しかも各コイル片に流れ
る電流の巡回方向がすべて同一 となるよう高周波電源
を接続してなることを特徴としている。As explained above, according to the present invention, each of the plurality of divided coil pieces each having a substantially rectangular plane and an arcuate side is a rectangular annular coil, and these divided coil pieces are molded together to form a cylindrical shape. A passage for the object to be heated is formed in the surrounding space, and each coil piece is designed so that current flows in the same circulation direction along the outer periphery of the object to be heated, so that opposing currents do not occur between adjacent wires. It is characterized by connecting a high-frequency power source so that the current flows through each coil piece in the same direction.
故に本考案によるときは、被加熱体の通道を形成し得る
一組の分割コイル片があれば、−々コイル交換せずども
各種径の異なる被加熱体がその直近から効率よく誘導加
熱できるようになり、また、別途のコイルと交換する場
合でも被加熱体の走行を停止させるが如き作業能率の低
下を来さず、従って導体としての芯線外周に熱可塑性樹
脂を被覆したケーブル、その他各種の長尺被加熱体の誘
導加熱がきわめて有利に行なえるようになる。Therefore, according to the present invention, if there is a set of split coil pieces that can form a passage for the heated object, it is possible to efficiently induction heat the heated objects of various diameters from the vicinity without having to replace the coils. In addition, even when replacing the coil with a separate coil, there will be no reduction in work efficiency such as stopping the running of the heated object. Induction heating of a long object to be heated can be carried out very advantageously.
しかも本考案の場合、平面からみた各分割コイル片は、
正方形でなく、略長方形であるから、中心部の空間を小
さくしてこれら各コイル片を巻きこみ形成しても、その
長手方向両端において磁束の打ち消し作用の起きない部
分が必ず得られることになり、その結果、加熱効率の高
い部分を確保しながら各コイル片を小型化することがで
き、径の小さいケーブルにあっても有効に加熱できる。Moreover, in the case of the present invention, each divided coil piece seen from a plane is
Since it is not a square but a substantially rectangular shape, even if the space in the center is made small and these coil pieces are wound together, there will always be a portion at both ends in the longitudinal direction where magnetic flux does not cancel out. As a result, each coil piece can be made smaller while ensuring a portion with high heating efficiency, and even cables with small diameters can be heated effectively.
図面は本考案の１実施例を示したもので、第１図は分割
コイル片単体の平面図、第２図は分割コイル片合体の側
面図、第３図は分割コイル片合体を割型筒体にセットし
た状態の斜視図である。
ｌａ、ｌｂ・・・・・・分割コイル片、２・・・・・・
高周波電源、４・・・・・・通道。The drawings show one embodiment of the present invention. Fig. 1 is a plan view of a single divided coil piece, Fig. 2 is a side view of a combined divided coil piece, and Fig. 3 is a side view of a combined divided coil piece. It is a perspective view of a state where it is set on the body. la, lb...Split coil piece, 2...
High frequency power supply, 4... Passageway.
Claims (1)
それぞれ矩形環状コイルよりなり、これら分割コイル片
を筒状となるように型合せしてその包囲空間内に被加熱
体の通道を形威し、各コイル片には互いに隣接する線相
互に電流の対向流が生じないよう、かつ、被加熱体の外
周に沿う同一巡回方向となる電流が流れるよう、しがも
各コイル片に流れる電流の巡回方向がすべて同一となる
よう高周波電源を接続してなる誘導加熱装置。The plurality of divided coil pieces each having a substantially rectangular plane and an arcuate side are each made of a rectangular annular coil, and these divided coil pieces are molded into a cylindrical shape to form a passage for the object to be heated in the surrounding space. In addition, the current flows through each coil piece so that opposing currents do not occur between adjacent wires, and the current flows in the same circulating direction along the outer periphery of the heated object. An induction heating device that is connected to a high-frequency power source so that the current circulates in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977037445U JPS583276Y2 (en) | 1977-03-28 | 1977-03-28 | induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977037445U JPS583276Y2 (en) | 1977-03-28 | 1977-03-28 | induction heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53132044U JPS53132044U (en) | 1978-10-19 |
| JPS583276Y2 true JPS583276Y2 (en) | 1983-01-20 |
Family
ID=28900509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977037445U Expired JPS583276Y2 (en) | 1977-03-28 | 1977-03-28 | induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS583276Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7440714B2 (en) * | 2020-01-31 | 2024-02-29 | 日本製鉄株式会社 | Slab heating equipment and continuous casting equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5241334B2 (en) * | 1973-10-17 | 1977-10-18 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2160635A1 (en) * | 1971-12-07 | 1973-06-20 | Hasenclever Gmbh Maschf | Electro-upsetting machine - with induction heating of billets |
-
1977
- 1977-03-28 JP JP1977037445U patent/JPS583276Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5241334B2 (en) * | 1973-10-17 | 1977-10-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53132044U (en) | 1978-10-19 |
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