JPS621751Y2 - - Google Patents
Info
- Publication number
- JPS621751Y2 JPS621751Y2 JP1982063947U JP6394782U JPS621751Y2 JP S621751 Y2 JPS621751 Y2 JP S621751Y2 JP 1982063947 U JP1982063947 U JP 1982063947U JP 6394782 U JP6394782 U JP 6394782U JP S621751 Y2 JPS621751 Y2 JP S621751Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating coil
- heated
- detection
- detection plate
- heating
- 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
- 238000010438 heat treatment Methods 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 35
- 230000006698 induction Effects 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は、被加熱材の加熱コイルへの衝突防止
構造を改良した誘導加熱コイル保護装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an induction heating coil protection device that has an improved structure for preventing a material to be heated from colliding with a heating coil.
一般に誘導加熱装置においては、被加熱材の寸
法形状等により、被加熱材を加熱位置に固定し、
加熱コイルを移動させて、被加熱材を加熱コイル
中に挿入して誘導加熱するものと、これとは逆に
加熱コイルは固定し、被加熱材を移動させて加熱
コイル内に挿入し、誘導加熱する方式とがある。 Generally, in induction heating equipment, the material to be heated is fixed at the heating position depending on the size and shape of the material to be heated.
In some cases, the heating coil is moved and the material to be heated is inserted into the heating coil to perform induction heating.In contrast, the heating coil is fixed and the material to be heated is moved and inserted into the heating coil to perform induction heating. There is a heating method.
何れの方式の場合においても、加熱コイル内に
被加熱材を挿入しなければならないが、挿入する
に際して被加熱材と加熱コイルの軸芯が一致する
必要がある。芯ずれを生ずると、被加熱材が加熱
コイルに衝突して破損する危険がある上、均一な
加熱ができず製品不良の原因となるなどの問題が
ある。 In either method, the material to be heated must be inserted into the heating coil, but when inserted, the axes of the material to be heated and the heating coil must be aligned. If misalignment occurs, there is a risk that the material to be heated will collide with the heating coil and be damaged, and there will also be problems such as not being able to heat uniformly and causing product defects.
特に量産ラインにおける誘導加熱では、複数の
加熱段階を経て次第に高温に加熱していくが、長
尺の被加熱材では中間の加熱段階で大きな曲りを
生じ易い上、複数の支持台で支持するため芯ずれ
を生じ易く、しかも加熱サイクルタイムが短いこ
とから被加熱材搬送装置やコイル移動装置のトラ
ブル等により接触や衝突の危険性が大きくなつて
きている。 Particularly in induction heating on a mass production line, the material is gradually heated to a high temperature through multiple heating stages, but long materials tend to bend significantly during the intermediate heating stage, and they must be supported by multiple support stands. Since misalignment is likely to occur and the heating cycle time is short, there is an increasing risk of contact or collision due to problems with the heated material conveying device or coil moving device.
本考案は上記欠点を除去して、被加熱材の加熱
コイルへの挿入時に加熱コイルとの衝突を確実に
防止することができる誘導加熱コイル保護装置を
得ることを目的とするものである。 The object of the present invention is to eliminate the above-mentioned drawbacks and provide an induction heating coil protection device that can reliably prevent collisions with the heating coil when a material to be heated is inserted into the heating coil.
以下本考案の一実施例を第１図を参照して詳細
に説明する。 An embodiment of the present invention will be described in detail below with reference to FIG.
図において１は、円筒状に形成された加熱コイ
ルを示し、この加熱コイル１の先端側に絶縁支持
部２を介して検出板３が取付けられている。 In the figure, reference numeral 1 indicates a heating coil formed in a cylindrical shape, and a detection plate 3 is attached to the tip side of the heating coil 1 via an insulating support part 2.
この検出板３は、ステンレス、銅など加熱コイ
ル１から発生する漏洩磁束により誘導加熱されな
い非磁性材料で形成され、加熱コイル１の内周形
状に対応した円形の挿通孔４を有する円形リング
状に形成されている。 This detection plate 3 is made of a non-magnetic material such as stainless steel or copper that is not heated by induction due to leakage magnetic flux generated from the heating coil 1, and has a circular ring shape with a circular insertion hole 4 corresponding to the inner peripheral shape of the heating coil 1. It is formed.
５は母線Ｒ，Ｓ間に接続された検出電源用変圧
器で、この二次側Ｕ端子に前記検出板３が接続さ
れている。 5 is a detection power transformer connected between bus bars R and S, and the detection plate 3 is connected to the secondary side U terminal of this transformer.
６は被加熱材で、この被加熱材６は導電性材料
で形成された支持台７に支持されるようになつて
おり、更にこの支持台７は図示しない被加熱材搬
送装置に取付けられ、被加熱材６を加熱コイル１
内に、搬送、送入するようになつている。 Reference numeral 6 denotes a material to be heated, and the material to be heated 6 is supported by a support base 7 made of an electrically conductive material.Furthermore, this support base 7 is attached to an unillustrated material conveying device, Heating material 6 is heated by heating coil 1
It is designed to be transported and fed into the interior.
前記支持台７は検出リレー８を介して検出電源
用変圧器５の二次側Ｕ端子に接続されている。更
に検出リレー８の出力接点９は、被加熱材搬送装
置の駆動回路に接続され、検出リレー８の付勢に
より出力接点９がオンするようになつている。 The support stand 7 is connected to the secondary side U terminal of the detection power transformer 5 via a detection relay 8. Further, the output contact 9 of the detection relay 8 is connected to a drive circuit of the heated material conveying device, and the output contact 9 is turned on when the detection relay 8 is energized.
次に上記構成をなす誘導加熱コイル保護装置の
動作について説明する。 Next, the operation of the induction heating coil protection device having the above configuration will be explained.
被加熱材搬送装置により支持台７を図中矢印方
向に移動させて、これに支持した被加熱材６を検
出板３の挿通孔４を通して加熱コイル１内に挿入
し、誘導加熱を行なう。 The support table 7 is moved in the direction of the arrow in the figure by the heated material conveying device, and the heated material 6 supported thereon is inserted into the heating coil 1 through the insertion hole 4 of the detection plate 3 to perform induction heating.
被加熱材６に曲りがあり、芯ずれした場合、被
加熱材６の先端が検出板３に衝突する。この衝突
により被加熱材６と検出板３とが導通し、検出電
源用変圧器５の二次側Ｕ端子−検出板３−被加熱
材６−支持台７−検出リレー８−検出電源用変圧
器５の二次側Ｕ端子の検出回路が構成され、検出
リレー８が付勢してその出力接点９をオンさせ
る。この出力接点９のオンにより被加熱材搬送装
置の駆動回路を遮断し、被加熱材６の搬送を即時
に停止させて加熱コイル１との衝突を防止する。 If the heated material 6 is bent and misaligned, the tip of the heated material 6 collides with the detection plate 3. Due to this collision, the heated material 6 and the detection plate 3 are electrically connected, and the secondary U terminal of the detection power supply transformer 5 - the detection plate 3 - the heated material 6 - the support stand 7 - the detection relay 8 - the detection power supply transformer A detection circuit for the secondary side U terminal of the device 5 is configured, and the detection relay 8 is energized to turn on its output contact 9. By turning on the output contact 9, the drive circuit of the heated material conveying device is cut off, and the conveyance of the heated material 6 is immediately stopped to prevent collision with the heating coil 1.
第２図は被加熱材６の両端を誘導加熱する場合
の本考案の他の実施例を示すものである。なお第
１図と同一部分は同一符号で示す。 FIG. 2 shows another embodiment of the present invention in which both ends of the material to be heated 6 are subjected to induction heating. Note that the same parts as in FIG. 1 are indicated by the same symbols.
支持台７Ａ，７Ｂは２台平行に配置したリフタ
ー型で、長尺の被加熱材６を２点で支持するよう
になつている。加熱コイル１Ａ，１Ｂは被加熱材
６の両側に配置され、図示しないコイル移動装置
により矢印方向に移動するようになつている。こ
の加熱コイル１Ａ，１Ｂの先端には絶縁支持部２
を介して、円形の挿通孔４を有する円形リング状
の検出板３Ａ，３Ｂが取付けられている。 The support stands 7A and 7B are of a lifter type and are arranged in parallel, and are designed to support the elongated material to be heated 6 at two points. The heating coils 1A and 1B are arranged on both sides of the material to be heated 6, and are moved in the direction of the arrow by a coil moving device (not shown). An insulating support part 2 is provided at the tip of the heating coils 1A and 1B.
Circular ring-shaped detection plates 3A and 3B each having a circular insertion hole 4 are attached thereto.
上記構造の誘導加熱コイル保護装置は、被加熱
材６の少なくとも一端が、検出板３Ａ，３Ｂに衝
突すると、被加熱材６と検出板３Ａ，３Ｂが回路
の一部となつて検出回路が構成され、上記実施例
と同様に検出リレー８の出力接点９がオンして、
コイル移動装置の駆動回路を遮断して即時に加熱
コイル１Ａ，１Ｂの移動を停止させることができ
る。 In the induction heating coil protection device having the above structure, when at least one end of the heated material 6 collides with the detection plates 3A and 3B, the heated material 6 and the detection plates 3A and 3B become part of the circuit, forming a detection circuit. , the output contact 9 of the detection relay 8 is turned on as in the above embodiment, and
It is possible to immediately stop the movement of the heating coils 1A and 1B by cutting off the drive circuit of the coil moving device.
なお上記実施例では検出板３の形状を加熱コイ
ル１の内周形状に対応した円形リング状の場合に
ついて示したが、コイル内周形状が楕円形の場合
には楕円形状リングでも良い。また検出板３を支
持する絶縁支持部２は衝撃を吸収するようにクツ
シヨン材、あるいはスプリングを用いても良い。 In the above embodiment, the detection plate 3 has a circular ring shape corresponding to the inner peripheral shape of the heating coil 1, but it may be an elliptical ring if the inner peripheral shape of the coil is elliptical. Further, the insulating support portion 2 that supports the detection plate 3 may be made of a cushion material or a spring so as to absorb shock.
以上説明した如く、本考案によれば、加熱コイ
ルの先端に取付けた検出板と、被加熱材とが検出
回路の一部を構成しているので、被加熱材の加熱
コイルへの挿入時に、芯ずれして検出板と衝突す
ると即時に移動が停止して加熱コイルとの衝突を
確実に防止するようにした誘導加熱コイル保護装
置を得ることができる。 As explained above, according to the present invention, since the detection plate attached to the tip of the heating coil and the material to be heated constitute a part of the detection circuit, when the material to be heated is inserted into the heating coil, It is possible to obtain an induction heating coil protection device that immediately stops moving when it misaligns and collides with the detection plate, thereby reliably preventing collision with the heating coil.
第１図は本考案の一実施例による誘導加熱コイ
ル保護装置の回路図、第２図は両端加熱の場合の
本考案の他の実施例による誘導加熱コイル保護装
置の回路図である。
１，１Ａ，１Ｂ…加熱コイル、２…絶縁支持
部、３，３Ａ，３Ｂ…検出板、４…挿通孔、５…
検出電源用変圧器、６…被加熱材、７，７Ａ，７
Ｂ…支持台、８…検出リレー、９…出力接点。
FIG. 1 is a circuit diagram of an induction heating coil protection device according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of an induction heating coil protection device according to another embodiment of the invention in the case of heating at both ends. 1, 1A, 1B... Heating coil, 2... Insulating support part, 3, 3A, 3B... Detection plate, 4... Insertion hole, 5...
Detection power supply transformer, 6... Heated material, 7, 7A, 7
B...Support stand, 8...Detection relay, 9...Output contact.
Claims (1)
形状に対応した挿通孔を有する検出板と、この検
出板を通して加熱コイル内に挿入される被加熱材
を支持する支持台と、この支持台と前記検出板と
の間に電気的に接続された検出リレーと、この検
出リレーの出力接点に接続された被加熱材搬送装
置または加熱コイル移動装置の駆動回路とから成
ることを特徴とする誘導加熱コイル保護装置。 An induction heating coil protection device characterized by comprising: a detection plate provided near the tip of the heating coil and having an insertion hole corresponding to the inner shape of the coil; a support base for supporting the material to be heated which is inserted into the heating coil through the detection plate; a detection relay electrically connected between the support base and the detection plate; and a drive circuit for a heated material transport device or a heating coil moving device connected to the output contacts of the detection relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6394782U JPS58165996U (en) | 1982-04-30 | 1982-04-30 | Induction heating coil protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6394782U JPS58165996U (en) | 1982-04-30 | 1982-04-30 | Induction heating coil protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58165996U JPS58165996U (en) | 1983-11-05 |
| JPS621751Y2 true JPS621751Y2 (en) | 1987-01-16 |
Family
ID=30074024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6394782U Granted JPS58165996U (en) | 1982-04-30 | 1982-04-30 | Induction heating coil protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58165996U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515599A (en) * | 1978-07-21 | 1980-02-02 | Desieno Duane D | Text editing device |
-
1982
- 1982-04-30 JP JP6394782U patent/JPS58165996U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515599A (en) * | 1978-07-21 | 1980-02-02 | Desieno Duane D | Text editing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58165996U (en) | 1983-11-05 |
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