JPH0660971A - Induction heating device - Google Patents
Induction heating deviceInfo
- Publication number
- JPH0660971A JPH0660971A JP20995392A JP20995392A JPH0660971A JP H0660971 A JPH0660971 A JP H0660971A JP 20995392 A JP20995392 A JP 20995392A JP 20995392 A JP20995392 A JP 20995392A JP H0660971 A JPH0660971 A JP H0660971A
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- heated
- gap
- conveyor
- feeding
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、炉内に設置された誘
導加熱コイルと、これを貫通する被加熱材搬送コンベア
を備えた誘導加熱装置に係わり、特に上記搬送コンベア
に対し被加熱材をすき間なく送入するようにしたもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating coil equipped with an induction heating coil installed in a furnace and a material-carrying conveyer that penetrates the induction heating coil. It is designed to be sent without gaps.
【０００２】[0002]
【従来の技術】誘導加熱装置は、圧廷素材やプレス成形
素材（以下被加熱材という）を誘導加熱炉内へ連続的に
送入し、これを搬送しながら加熱処理する装置であっ
て、例えば特開昭５７−３８５８６号公報に示されたも
のがある。即ち、図５はこの種従来の誘導加熱装置を示
す正面図である。図において、１は誘導加熱炉、１ａは
誘導加熱コイル、２はホイール３、４で支承され上記誘
導加熱コイル１ａを貫通する搬送コンベア、５は駆動装
置であり、モータ６の出力軸に設けられたスプロケット
ホイール７と、上記ホイール３と同軸に設けられたスプ
ロケットホイール８および両スプロケットホイール７、
８を連結するローラチェン９によって構成されている。
１０は送入コンベア、１１はガイドレールである。2. Description of the Related Art An induction heating apparatus is an apparatus for continuously feeding a press-molded material or a press-molded material (hereinafter referred to as a material to be heated) into an induction heating furnace, and carrying out heat treatment while transporting the material. For example, there is one disclosed in JP-A-57-38586. That is, FIG. 5 is a front view showing a conventional induction heating device of this type. In the figure, 1 is an induction heating furnace, 1a is an induction heating coil, 2 is a conveyer supported by wheels 3 and 4 and passing through the induction heating coil 1a, and 5 is a drive device, which is provided on the output shaft of a motor 6. A sprocket wheel 7, a sprocket wheel 8 provided coaxially with the wheel 3 and both sprocket wheels 7,
The roller chain 9 connects the eight.
Reference numeral 10 is a feeding conveyor, and 11 is a guide rail.
【０００３】従来の誘導加熱装置は上記のように構成さ
れ、送入コンベア１０上に供給された被加熱材Ａは、同
コンベア１０からガイドレール１１を介して連続的に搬
送コンベア２へ送入され、誘導加熱コイル１ａ内を搬送
されながら加熱処理されて次工程へ送り出される。な
お、被加熱材Ａの送入速度と搬送コンベア２の搬送速度
を一致させるために、搬送コンベア２の搬送速度は送入
コンベア１０の送り速度と同等またはそれ以下に設定さ
れている。The conventional induction heating apparatus is constructed as described above, and the material A to be heated supplied onto the feeding conveyor 10 is continuously fed from the conveyor 10 to the conveying conveyor 2 via the guide rail 11. Then, it is heated in the induction heating coil 1a while being conveyed, and sent to the next step. In order to match the feeding speed of the material A to be heated and the feeding speed of the feeding conveyor 2, the feeding speed of the feeding conveyor 2 is set to be equal to or lower than the feeding speed of the feeding conveyor 10.
【０００４】[0004]
【発明が解決しようとする課題】従来の誘導加熱装置は
以上のように構成されているので、被加熱材Ａが送入コ
ンベア１０から搬送コンベア２に載り移る時、ガイドレ
ール１１との摩擦による制動作用を受けて先行の被加熱
材との間にすき間が生ずることがあり、また、送入コン
ベア１０上の被加熱材Ａは必ずしも完全に接合した状態
で送られない。つまり、すき間の大きさは時々の運転状
況によって異なりまちまちであって。これを制御調整す
ることは不可能である。つまり各被加熱材Ａ間にすき間
ができているため、被加熱材Ａの端面がオーバーヒート
しやすく、送出される被加熱材Ａに温度むらが生ずるば
かりでなく、誘導加熱コイル１内の被加熱材の占有率
（処理量）が低下変動し、送出される被加熱材の温度管
理が困難になるという問題点があった。Since the conventional induction heating apparatus is constructed as described above, when the material A to be heated is transferred from the infeed conveyor 10 to the transfer conveyor 2, it is caused by friction with the guide rail 11. A gap may occur between the preceding heated material due to the braking action, and the heated material A on the feeding conveyor 10 is not always fed in a completely joined state. In other words, the size of the gap varies depending on the driving situation from time to time. It is impossible to control and adjust this. That is, since there is a gap between each heated material A, the end surface of the heated material A is likely to overheat, and not only the temperature unevenness occurs in the heated material A to be sent out, but also the heated material in the induction heating coil 1 is heated. There is a problem in that the occupancy rate (processing amount) of the material decreases and fluctuates, and it becomes difficult to control the temperature of the heated material to be sent.
【０００５】この発明は上記のような問題点を解消する
ためになされたもので、誘導加熱コイル内の搬送コンベ
ア上に送入される被加熱材相互のすき間をなくして端面
のオーバーヒートを防止すると共に加熱効率を高めるこ
とができる誘導加熱装置を提供することを目的とする。The present invention has been made in order to solve the above-mentioned problems, and eliminates the gap between the materials to be heated fed onto the conveyor in the induction heating coil to prevent the end face from overheating. At the same time, it is an object of the present invention to provide an induction heating device capable of increasing heating efficiency.
【０００６】[0006]
【課題を解決するための手段】この発明に係る請求項１
の誘導加熱装置は、誘導加熱コイルを貫通する搬送コン
ベアの送入側に、送入された被加熱材間すすき間を検出
するすき間検出器を配置する共に、上記すき間検出器の
検出信号によって制御され、すき間が検出された時に後
行の被加熱材を前方に押し出す送入機構を設けたもので
あり、また請求項２の誘導加熱装置は、送入機構に作用
する負荷を検出する負荷検出センサーを設け、検出され
る負荷がある値より小さい時、後行の被加熱材を前方に
押し出す送入機構を設けたものである。[Means for Solving the Problems] Claim 1 according to the present invention
The induction heating device is equipped with a gap detector that detects the gap between the heated materials that have been fed in on the feed side of the conveyer that passes through the induction heating coil, and is controlled by the detection signal of the gap detector. In addition, the induction heating device according to claim 2 is provided with a feeding mechanism that pushes out a material to be heated in a trailing direction when a gap is detected, and the induction heating device according to claim 2 detects a load acting on the feeding mechanism. A sensor is provided, and when the detected load is smaller than a certain value, a feeding mechanism is provided to push out the material to be heated in the following direction.
【０００７】[0007]
【作用】この発明における誘導加熱装置は、送入される
被加熱材間にすき間が検出された時、後行の被加熱材を
先行の被加熱材に向かって押し出すことによってすき間
を解消する。In the induction heating apparatus according to the present invention, when a gap is detected between the heated materials to be fed, the gap is eliminated by pushing the following heated material toward the preceding heated material.
【０００８】[0008]
実施例１．以下、この発明の実施例を図について説明す
る。図１はこの発明の実施例１における誘導加熱装置の
構成を示す正面図である。図において、１〜９は上記図
５に示す従来の装置と同一のものである。１１は誘導加
熱炉１内の誘導加熱コイル１ａを貫通する搬送コンベア
２の送入側に配置された被加熱材Ａの送入機構であり、
エアシリンダ１２とその駆動装置１３およびガイドレー
ル１４によって構成されている。なお、図示されていな
いが、上記ガイドレール１４の側方には被加熱材供給装
置が設けられていて、上記ガイドレール１４上に順次被
加熱材が供給される。１５は上記搬送コンベア２の送入
側に配置されたすき間検出器であり、例えば、ＣＣＤカ
メラ、イメージセンサ、レーザセンサー等が適用され
る。また、上記すき間検出器１５は、先行被加熱材Ａ1
と後行被加熱材Ａ2との間のすき間を正確に検出するた
めに、例えば先行被加熱材Ａ1の後端位置を検出し、こ
れに追随移動可能ですき間が０になった時点でクイック
リターン動作する移動装置（図示せず）上に設置され
る。１６は例えばシーケンサー、マイコン等を内蔵した
制御装置であり、上記すき間検出器１５の信号を処理
し、これを上記駆動装置１３に出力する。Example 1. Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view showing the configuration of an induction heating device according to a first embodiment of the present invention. In the figure, 1 to 9 are the same as the conventional device shown in FIG. Reference numeral 11 denotes a feeding mechanism for the material A to be heated, which is arranged on the feeding side of the conveyor 2 that penetrates the induction heating coil 1a in the induction heating furnace 1.
It is composed of an air cylinder 12, a driving device 13 for the air cylinder 12, and a guide rail 14. Although not shown, a heated material supply device is provided on the side of the guide rail 14, and the heated material is sequentially supplied onto the guide rail 14. Reference numeral 15 denotes a gap detector arranged on the feeding side of the conveyer 2, and for example, a CCD camera, an image sensor, a laser sensor or the like is applied. In addition, the gap detector 15 is configured such that the preceding heated material A 1
In order to accurately detect the gap between the heating target material A 2 and the subsequent heating target material A 2 , for example, the rear end position of the preceding heating target material A 1 is detected, and it is possible to follow this position and when the clearance becomes zero. It is installed on a moving device (not shown) that operates in quick return. Reference numeral 16 is a control device including, for example, a sequencer, a microcomputer, etc., which processes the signal of the gap detector 15 and outputs it to the drive device 13.
【０００９】上記のように構成された実施例１における
誘導加熱装置にあっては、誘導加熱コイル１ａ内を貫通
する搬送コンベア２は、送入される被加熱材Ａを一定速
度で搬送し、一方送入側では被加熱材供給機構により後
行の被加熱材が送り込まれる。この時、搬送コンベア２
上にある先行被加熱材Ａ1は誘導加熱コイル１ａ内へ移
動しており、供給された後行被加熱材Ａ2の先端と上記
先行の被加熱材Ａ1の後端との間にすき間Ｇが生ずる。
このすき間Ｇはすき間検出器１５で検出され、その信号
が制御装置１６に入力される、そして上記すき間Ｇが０
になるまで駆動装置１３に送信し、エアシリンダ１２の
ロッドを送出して後行の被加熱材Ａ2を搬送コンベア２
側へ押し込み、先行の被加熱材Ａ1へ当接される。ここ
で駆動装置１３のエア流路が切り換えられ、エアシリン
ダ１２のロッドが復帰して次の被加熱材を受け入れる。
したがって誘導加熱コイル１内を搬送される被加熱材Ａ
は端面のオーバーヒートが防止され、均一化された温度
分布の被加熱材として誘導加熱コイル１から送出され
る。In the induction heating apparatus of the first embodiment constructed as described above, the conveyor 2 penetrating the induction heating coil 1a conveys the heated material A fed therein at a constant speed, On the other hand, on the feeding side, the following heating material is fed by the heating material supply mechanism. At this time, the conveyor 2
The preceding preceding heated material A 1 is moving into the induction heating coil 1a, and a gap is provided between the leading end of the trailing heated material A 2 supplied and the trailing end of the preceding preceding heated material A 1. G occurs.
The gap G is detected by the gap detector 15, its signal is input to the control device 16, and the gap G is 0.
To the driving device 13, and sends the rod of the air cylinder 12 to transfer the subsequent heated material A 2 to the conveyor 2
It is pushed to the side and brought into contact with the preceding heated material A 1 . Here, the air flow path of the drive device 13 is switched, and the rod of the air cylinder 12 returns to receive the next material to be heated.
Therefore, the material to be heated A conveyed in the induction heating coil 1
The end face is prevented from overheating, and is fed from the induction heating coil 1 as a material to be heated having a uniform temperature distribution.
【００１０】実施例２．図２はこの発明の実施例２にお
ける誘導加熱装置の構成を示す正面図である。即ちこの
実施例３は、上記実施例１における挿入機構１１のエア
シリンダ１２にかえてコンベア機構を用いたものであ
り、図において、１７は被加熱材の送入コンベア、１８
は駆動モータ、１９は上記送入コンベア１７と駆動モー
タ１８を結ぶローラチェン、２０は速度制御装置であ
る。なお他の構造は図１に示す上記実施例１のものと同
様である。Embodiment 2. FIG. 2 is a front view showing the configuration of the induction heating device according to the second embodiment of the present invention. That is, in the third embodiment, a conveyor mechanism is used instead of the air cylinder 12 of the insertion mechanism 11 in the first embodiment. In the figure, 17 is a conveyer for feeding a material to be heated, 18
Is a drive motor, 19 is a roller chain connecting the feeding conveyor 17 and the drive motor 18, and 20 is a speed control device. The other structure is the same as that of the first embodiment shown in FIG.
【００１１】上記のように構成された実施例２における
誘導加熱装置にあっては、先行被加熱材Ａ1と後行加熱
材Ａ2とのすき間Ｇをすき間検出器１５により検出し、
送入コンベア１７の送り速度を搬送コンベア２の速度よ
り速くなる様に速度制御装置２０により最適に調整さ
れ、先行被加熱材Ａ1に後行被加熱材Ａ2を当接させすき
間を解消するもので、上記実施例１と同様の効果を奏す
る。In the induction heating device of the second embodiment constructed as described above, the gap detector 15 detects the gap G between the preceding heated material A 1 and the following heated material A 2 .
The feed speed of the infeed conveyor 17 is optimally adjusted by the speed control device 20 so as to be higher than the speed of the transport conveyor 2, and the trailing heated material A 2 is brought into contact with the preceding heated material A 1 to eliminate the gap. Therefore, the same effect as that of the first embodiment is obtained.
【００１２】実施例３．図３はこの発明の発明の実施例
３における誘導加熱装置の構成を示す正面図である。上
記実施例１では先行被加熱材Ａ1と後行被加熱材Ａ2との
すき間をすき間検出器１５で検出し、その信号を制御装
置１６に入力してエアシリンダ１２の駆動装置１３を制
御するように構成されているが、この実施例３は上記す
き間検出器１５にかえて圧力センサーによりすき間を検
出するようにしたもので、図において、２１はエアシリ
ンダ１２のロッド端に取り付けた圧力センサである。な
お、他の構造は図１に示す上記実施例１のものと同様で
ある。Embodiment 3. Third Embodiment FIG. 3 is a front view showing the configuration of an induction heating device according to a third embodiment of the present invention. In the first embodiment, the gap between the preceding heated material A 1 and the succeeding heated material A 2 is detected by the clearance detector 15, and the signal is input to the control device 16 to control the drive device 13 of the air cylinder 12. In the third embodiment, a pressure sensor is used instead of the gap detector 15 to detect the gap. In the figure, 21 is a pressure attached to the rod end of the air cylinder 12. It is a sensor. The other structure is the same as that of the first embodiment shown in FIG.
【００１３】上記のように構成された実施例３における
誘導加熱装置にあっては、エアシリンダ１２のロッドで
後行の被加熱材Ａ2を搬送コンベア２へ送出する時の負
荷を圧力センサ２１で検出し、その圧力が基準値即ち後
行の被加熱材Ａ2が先行の被加熱材Ａ1に接合している場
合より小さい時、この検出信号を制御装置１６に入力
し、送入機構１１の送りを制御して負荷検出値が基準値
になるまで後行の被加熱材Ａ2を押し出して先行の被加
熱材Ａ1に当接させ、すき間を解消するもので、上記実
施例１と同様の効果を奏する。In the induction heating apparatus according to the third embodiment having the above-described structure, the pressure sensor 21 measures the load when the subsequent heated material A 2 is delivered to the conveyor 2 by the rod of the air cylinder 12. When the pressure is smaller than the reference value, that is, the case where the subsequent heated material A 2 is joined to the preceding heated material A 1 , this detection signal is input to the control device 16 and the feeding mechanism The feed of No. 11 is controlled to extrude the following heated material A 2 until the detected load value reaches the reference value and abut against the preceding heated material A 1 to eliminate the gap. Has the same effect as.
【００１４】実施例４．図４はこの発明の実施例４にお
ける誘導加熱装置の構成を示す正面図である。上記実施
例３ではエアシリンダ１２のロッド端に圧力センサ２１
を設けているが、この実施例４はエアシリンダ１２を作
動させるエア回路に圧力センサー２２を介設したもの
で、後行の被加熱材Ａ2を送出する時の回路圧力を圧力
センサー２１で検出し、後行の被加熱材Ａ2が先行の被
加熱材Ａ1に接合している時の圧力より小さい時、この
検出信号を制御装置１６に入力し、送入機構１１の送り
を制御して後行の被加熱材Ａ2を押し出して先行の被加
熱材Ａ1に当接させ、すき間を解消するもので、上記実
施例３と同様の効果を奏する。Example 4. Fourth Embodiment FIG. 4 is a front view showing the configuration of an induction heating device according to a fourth embodiment of the present invention. In the third embodiment, the pressure sensor 21 is provided on the rod end of the air cylinder 12.
In the fourth embodiment, the pressure sensor 22 is provided in the air circuit for operating the air cylinder 12, and the pressure sensor 21 measures the circuit pressure when the subsequent heated material A 2 is delivered. When the pressure is detected and the subsequent heated material A 2 is smaller than the pressure at which it is joined to the preceding heated material A 1 , this detection signal is input to the control device 16 to control the feeding of the feeding mechanism 11. Then, the subsequent heated material A 2 is extruded and brought into contact with the preceding heated material A 1 to eliminate the gap, and the same effect as that of the above-described third embodiment is obtained.
【００１５】実施例５．なお、上記実施例２に示すよう
に、電動機を送入装置１１の駆動源とした構成の場合、
電動機の電流変化を検出し、その信号にもとづいて送り
装置を制御する構成として実施してもよい。Example 5. As shown in the second embodiment, in the case where the electric motor is used as the drive source of the feeding device 11,
It may be implemented as a configuration in which a change in the electric current of the electric motor is detected and the feeding device is controlled based on the signal.
【００１６】実施例６．また、上記実施例２における送
入コンベア１７にかえて、ピンチローラによる送入構造
とし、このピンチローラの回転速度を制御する構成とし
て実施してもよい。Example 6. Further, the feeding conveyor 17 in the second embodiment may be replaced with a feeding structure using pinch rollers, and the rotational speed of the pinch rollers may be controlled.
【００１７】[0017]
【発明の効果】以上のように、この発明の請求項１によ
れば誘導加熱コイルを貫通して被加熱材を搬送する搬送
コンベアの送入側に送入される先・後行被加熱材間のす
き間を検出するすき間検出器を配置すると共に、上記す
き間検出器の信号によって制御され、すき間が検出され
た時に後行の被加熱材を前方に押し出す送入機構を備
え、またこの発明の請求項２によれば、送入機構に作用
する負荷を検出する負荷検出センサーを設け、検出され
る負荷がある値より小さい時、後行の被加熱材を前方に
押し出す送入機構を設けたので、誘導加熱コイル内の搬
送コンベア上に送入された被加熱材は相互にすき間なく
接合した状態を保持して加熱処理される。したがって端
面がオーバーヒートすることがなく均一化されて効率の
よい加熱が可能になる。As described above, according to the first aspect of the present invention, the preceding / subsequent heated material to be fed to the feeding side of the conveyer which conveys the heated material through the induction heating coil. A gap detector that detects a gap is arranged, and is provided with a feeding mechanism that is controlled by a signal from the gap detector and that pushes out a subsequent heated material forward when the gap is detected. According to claim 2, the load detection sensor for detecting the load acting on the feeding mechanism is provided, and when the detected load is smaller than a certain value, the feeding mechanism for pushing the following heated material forward is provided. Therefore, the materials to be heated fed onto the conveyor in the induction heating coil are heat-treated while maintaining a state in which they are joined to each other without any gap. Therefore, the end faces are not overheated and uniformized and efficient heating is possible.
【図面の簡単な説明】[Brief description of drawings]
【図１】この発明の実施例１における誘導加熱装置の構
成を示す正面図である。FIG. 1 is a front view showing the configuration of an induction heating device according to a first embodiment of the present invention.
【図２】この発明の実施例２における誘導加熱装置の構
成を示す正面図である。FIG. 2 is a front view showing the configuration of the induction heating device in Embodiment 2 of the present invention.
【図３】この発明の実施例３における誘導加熱装置の送
入機構側の構成を示す正面図である。FIG. 3 is a front view showing a configuration of an induction heating device on a feeding mechanism side in a third embodiment of the present invention.
【図４】この発明の実施例４における誘導加熱装置の送
入機構側の構成を示す正面図である。FIG. 4 is a front view showing the configuration on the feeding mechanism side of the induction heating device in Embodiment 4 of the present invention.
【図５】従来の誘導加熱装置の構成を示す正面図であ
る。FIG. 5 is a front view showing the configuration of a conventional induction heating device.
１ 誘導加熱炉 １ａ 誘導加熱コイル ２ 搬送コンベア ５ 駆動装置 １１ 送入機構 １２ エアシリンダ １３ 駆動装置 １４ ガイドレール １５ すき間検出器 １６ 制御装置 １７ 送入コンベア １８ 駆動モータ ２０ 速度制御装置 ２１、２２ 圧力センサー DESCRIPTION OF SYMBOLS 1 Induction heating furnace 1a Induction heating coil 2 Conveyor 5 Drive device 11 Feeding mechanism 12 Air cylinder 13 Drive device 14 Guide rail 15 Gap detector 16 Control device 17 Feeding conveyor 18 Drive motor 20 Speed control device 21, 22 Pressure sensor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鶴来 博明 尼崎市塚口本町８丁目１番１号 三菱電機 株式会社伊丹製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroaki Tsurugi 8-1-1 Tsukaguchihonmachi, Amagasaki City Mitsubishi Electric Corporation Itami Works
Claims (2)
の誘導加熱コイルを貫通して被加熱材を搬送する搬送コ
ンベアおよびこの搬送コンベアの送入側に被加熱材を連
続して送入する送入機構を備えた誘導加熱装置におい
て、上記搬送コンベアの送入側に、送入された被加熱材
間のすき間を検出するすき間検出器を配置すると共に、
上記すき間検出器の検出信号によって制御され、上記す
き間が検出された時に後行の被加熱材を前方に押し出す
搬入機構を設置したことを特徴とする誘導加熱装置。1. An induction heating coil installed in a furnace, a conveyer that conveys a material to be heated through the induction heating coil, and a material to be heated is continuously fed to the feeding side of the conveyor. In the induction heating device with a feeding mechanism to, on the feeding side of the conveyor, with a gap detector to detect the gap between the fed heated material,
An induction heating apparatus, comprising: a carry-in mechanism that is controlled by a detection signal of the gap detector and pushes out a material to be heated in a subsequent direction forward when the gap is detected.
の誘導加熱コイルを貫通して被加熱材を搬送する搬送コ
ンベアおよびこの搬送コンベアの送入側に被加熱材を連
続して送入する送入機構を備えた誘導加熱装置におい
て、上記送入機構に作用する負荷を検出する負荷検出セ
ンサーを設け、検出される負荷がある値より小さい時、
後行の被加熱材を前方に押し出す送入機構を設置したこ
とを特徴とする誘導加熱装置。2. An induction heating coil installed in a furnace, a conveyer which penetrates the induction heating coil and conveys a material to be heated, and a material to be heated is continuously fed to a feeding side of the conveyor. In the induction heating device with the feeding mechanism to provide a load detection sensor for detecting the load acting on the feeding mechanism, when the detected load is less than a certain value,
An induction heating device comprising a feeding mechanism for pushing a subsequent heated material forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20995392A JPH0660971A (en) | 1992-08-06 | 1992-08-06 | Induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20995392A JPH0660971A (en) | 1992-08-06 | 1992-08-06 | Induction heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0660971A true JPH0660971A (en) | 1994-03-04 |
Family
ID=16581405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20995392A Pending JPH0660971A (en) | 1992-08-06 | 1992-08-06 | Induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0660971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408752A (en) * | 2019-08-26 | 2019-11-05 | 南京铁道职业技术学院 | A kind of small rod annealing lathe |
-
1992
- 1992-08-06 JP JP20995392A patent/JPH0660971A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408752A (en) * | 2019-08-26 | 2019-11-05 | 南京铁道职业技术学院 | A kind of small rod annealing lathe |
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