JPS6149794B2 - - Google Patents
Info
- Publication number
- JPS6149794B2 JPS6149794B2 JP15976378A JP15976378A JPS6149794B2 JP S6149794 B2 JPS6149794 B2 JP S6149794B2 JP 15976378 A JP15976378 A JP 15976378A JP 15976378 A JP15976378 A JP 15976378A JP S6149794 B2 JPS6149794 B2 JP S6149794B2
- Authority
- JP
- Japan
- Prior art keywords
- sheathed heater
- spiral
- heater
- mold
- sheathed
- 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
- 238000000034 method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
Landscapes
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Description
【発明の詳細な説明】
本発明は渦巻形シーズヒータの製造方法に関
し、合理的且つ容易に成形加工する製造方法を提
供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a spiral sheathed heater, and an object of the present invention is to provide a method for manufacturing a spiral sheathed heater in a rational and easy manner.
従来、渦巻形シーズヒータの曲げ加工は、平担
な金型の溝にヒータをたたき込んで曲げるか、あ
るいは円錐状金型の溝に巻き込んで平担化する方
法が一般的であつた。しかしこれらの方法はヒー
ターを数本同時に曲げることは困難であり、特に
平担な金型溝へヒーターをたたき込んで曲げる方
法は多くの工数を必要とし、経済性から実用は難
かしく、パイプを傷つけるため、製品の外観から
も好ましい方法ではなかつた。また、比較的容易
に曲げ加工のできる円錐状金型に巻く方法も、金
型の加工が難しく曲げ設備も複雑高価なものにな
り、曲げ後もヒーター形状はそのまま円錐形状で
残り、被加熱物との熱伝導を改善すべく平担部を
設けるプレス工程の前に、あらかじめ平面押を行
なつて円錐形状を平面にするためのプレス工程を
必要とする欠点があつた。 Conventionally, the conventional method for bending a spiral sheathed heater has been to bend the heater by driving it into a groove in a flat mold, or by winding it into a groove in a conical mold to make it flat. However, with these methods, it is difficult to bend several heaters at the same time, and in particular, the method of bending heaters by hammering them into a flat mold groove requires a lot of man-hours, making it difficult to put it into practical use due to economical reasons, and causing damage to the pipe. Therefore, this method was not preferred from the viewpoint of the appearance of the product. In addition, the method of winding the heater in a conical mold, which can be bent relatively easily, requires difficult mold processing and requires complicated and expensive bending equipment, and the shape of the heater remains conical even after bending. There was a drawback that a pressing process was required to flatten the conical shape by performing flat pressing in advance before the pressing process to provide a flat part to improve heat conduction between the conical part and the conical part.
本発明は上記従来の渦巻形シーズヒータの製造
方法の欠点を解消するもので以下に本発明の一実
施例について添付図面を参照して説明する。 The present invention eliminates the drawbacks of the conventional method of manufacturing a spiral sheathed heater, and one embodiment of the present invention will be described below with reference to the accompanying drawings.
図において、１はシーズヒータである。２は金
型であり、中央部に凸部３を有するとともに、複
数個のシーズヒータ端部挿入孔４を有する。５は
凸部３への方向に付勢されたローラである。 In the figure, 1 is a sheathed heater. Reference numeral 2 denotes a mold, which has a protrusion 3 in the center and a plurality of sheathed heater end insertion holes 4. 5 is a roller urged in the direction toward the convex portion 3.
次にシーズヒータ１を渦巻形に成形する順序を
説明する。 Next, the order of forming the sheathed heater 1 into a spiral shape will be explained.
まず、シーズヒータ１の端部を略直角方向に曲
げ、この曲げられた端部を、挿入孔４に挿入す
る。この後、ローラ５を押しあてながら、金型２
を回転させる。この時、シーズヒータ１は金型２
の回転初期において凸部３に巻付けられるが、そ
の後は他のシーズヒータ１の外周に巻付けられる
こととなる。従つて、２本のシーズヒータを同時
に渦巻形に成形する場合には一本の渦巻形シーズ
ヒータの巻き間隔は他方のシーズヒータの外径と
同一となる。なお、挿入孔４が設けられる位置は
凸部３の外周に等角にするとよい。また、ローラ
５はシーズヒータの巻数が増加するにつれて、適
当な押圧力を保つたまま後退するとよい。さら
に、渦巻形に成形されたシーズヒータをプレス加
工して平担部を形成し、載置される鍋等の被加熱
物への熱伝導性を向上するとよい。 First, the end of the sheathed heater 1 is bent approximately at right angles, and the bent end is inserted into the insertion hole 4 . After this, while pressing the roller 5, the mold 2
Rotate. At this time, the sheathed heater 1 is
It is wound around the convex part 3 at the initial stage of rotation, but thereafter it is wound around the outer periphery of another sheathed heater 1. Therefore, when two sheathed heaters are simultaneously formed into a spiral shape, the winding interval of one spiral sheathed heater is the same as the outer diameter of the other sheathed heater. Note that the position where the insertion hole 4 is provided is preferably equiangular to the outer periphery of the convex portion 3. Further, as the number of turns of the sheathed heater increases, the roller 5 is preferably moved back while maintaining an appropriate pressing force. Furthermore, it is preferable to press the sheathed heater formed into a spiral shape to form a flat part to improve thermal conductivity to an object to be heated such as a pot placed on the sheathed heater.
以上の説明から明らかなように本発明の渦巻形
シーズヒータの製造方法によれば、複数本の渦巻
形シーズヒータを同時に容易に成形することがで
きるとともに、巻き間隔は他方のシーズヒータの
外径によつて決定されるので均一となり、全体的
な温度分布が良くなり、その工業的価値は大なる
ものである。 As is clear from the above description, according to the method for manufacturing a spiral sheathed heater of the present invention, it is possible to easily mold a plurality of spiral sheathed heaters at the same time, and the interval between turns is set to the outer diameter of the other sheathed heater. Since it is determined by
第１図は本発明の一実施例を示すシーズヒータ
の製造工程初期の斜視図、第２図は同製造工程終
了時の平面図、第３図は同側面図である。
１……シーズヒータ、２……金型、３……凸
部、４……シーズヒータ端部挿入孔、５……ロー
ラ。
FIG. 1 is a perspective view of a sheathed heater according to an embodiment of the present invention at the beginning of the manufacturing process, FIG. 2 is a plan view at the end of the manufacturing process, and FIG. 3 is a side view of the same. DESCRIPTION OF SYMBOLS 1... Sheathed heater, 2... Mold, 3... Convex part, 4... Sheathed heater end insertion hole, 5... Roller.
Claims (1)
シーズヒータ端部挿入孔を有する回転金型を用
い、前記挿入孔のそれぞれにシーズヒータの端部
を挿入し、前記凸部方向に付勢したローラでシー
ズヒータを他のシーズヒータの外周に押しつけて
渦巻状に成形することを特微とする渦巻形シーズ
ヒータの製造方法。1 Using a rotary mold that has a convex part in the center that serves as a winding start guide and a plurality of sheathed heater end insertion holes, insert the end of the sheathed heater into each of the insertion holes, and insert the end part of the sheathed heater in the direction of the convex part. A method for manufacturing a spiral sheathed heater characterized by pressing a sheathed heater against the outer periphery of another sheathed heater using an energized roller to form a spiral shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15976378A JPS5583187A (en) | 1978-12-20 | 1978-12-20 | Method of fabricating spiral sheathed heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15976378A JPS5583187A (en) | 1978-12-20 | 1978-12-20 | Method of fabricating spiral sheathed heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5583187A JPS5583187A (en) | 1980-06-23 |
| JPS6149794B2 true JPS6149794B2 (en) | 1986-10-31 |
Family
ID=15700726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15976378A Granted JPS5583187A (en) | 1978-12-20 | 1978-12-20 | Method of fabricating spiral sheathed heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5583187A (en) |
-
1978
- 1978-12-20 JP JP15976378A patent/JPS5583187A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5583187A (en) | 1980-06-23 |
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