JPH07212026A - Electrode part heat treatment device - Google Patents
Electrode part heat treatment deviceInfo
- Publication number
- JPH07212026A JPH07212026A JP596394A JP596394A JPH07212026A JP H07212026 A JPH07212026 A JP H07212026A JP 596394 A JP596394 A JP 596394A JP 596394 A JP596394 A JP 596394A JP H07212026 A JPH07212026 A JP H07212026A
- Authority
- JP
- Japan
- Prior art keywords
- furnace body
- lower furnace
- metal plate
- heat insulating
- upper furnace
- 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】本発明は電子部品の加熱処理装置
に関し、詳しくは電子部品が載置された被処理物を搬送
手段により搬送して加熱炉を形成する下部炉体と上部炉
体との間を通過させながら熱処理を行う、例えばリフロ
ー半田付け装置に利用される電子部品の加熱処理装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat treatment apparatus for electronic parts, and more particularly to a lower furnace body and an upper furnace body for forming a heating furnace by carrying an object to be processed on which electronic parts are placed by carrying means. The present invention relates to a heat treatment apparatus for electronic components used in, for example, a reflow soldering apparatus, which performs heat treatment while passing between the two.
【０００２】[0002]
【従来の技術】この種の加熱処理装置は、通常加熱炉が
下部炉体と上部炉体とで形成され、双方間を通る搬送コ
ンベアによって被処理物を搬送し、炉体内を通過させな
がら加熱処理する。2. Description of the Related Art In a heat treatment apparatus of this type, a heating furnace is usually composed of a lower furnace body and an upper furnace body, and an object to be treated is conveyed by a conveyer conveyor passing between the both, and is heated while passing through the furnace body. To process.
【０００３】従来、特開平３−２１４６８８号公報に開
示しているように、加熱炉は、搬送手段を支持した支持
枠内に設けられ、この支持枠とは別の金属板よりなる中
空の枠体内にグラスウール等のばら状の断熱材を充填し
て炉体を形成している。Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 3-214688, a heating furnace is provided in a supporting frame that supports a conveying means, and is a hollow frame made of a metal plate different from the supporting frame. A furnace body is formed by filling the body with loose heat insulating material such as glass wool.
【０００４】図６、図７はこれの具体例を示している。
これについて説明すると、加熱炉は、上向きに開放され
た下部炉体ａと、この下部炉体ａの上に被さり開閉でき
るようにした下向きに開放された上部炉体ｂとから構成
されている。下部炉体ａは搬送手段ｄの支持枠ｅ内にこ
れとは間隔を置いて設置され、上部炉体ｂは支持枠ｅの
上に被さって開閉できるようにヒンジピンｃにより連結
したカバー枠ｆ内に間隔を置いて設けてこれと一体的に
開閉されるようにしている。上部炉体ｂはカバー枠ｆと
は別に下部炉体ａにヒンジ連結して開閉できるように支
持されることもある。6 and 7 show specific examples of this.
Explaining this, the heating furnace is composed of a lower furnace body a which is opened upward and an upper furnace body b which is opened downward so as to cover the lower furnace body a and open and close. The lower furnace body a is installed in the supporting frame e of the conveying means d with a space therebetween, and the upper furnace body b is covered with the hinge pin c so that it can be opened and closed by being covered with the hinge frame c. It is provided with a space in between so that it can be opened and closed integrally with it. The upper furnace body b may be hingedly connected to the lower furnace body a separately from the cover frame f so as to be opened and closed.
【０００５】下部炉体ａおよび上部炉体ｂのいずれも金
属板よりなる中空の枠体ａ１、ｂ１内にグラスウール等
のばら状の断熱材ｇを充填して形成し、熱の外部への放
散を防止し、かつ下部炉体ａおよび支持枠ｅとの間の空
間ｊ、上部炉体ｂとカバー枠ｆとの間の空間ｋも手伝っ
て熱の外部への逃げによる危険を防止している。Both the lower furnace body a and the upper furnace body b are formed by filling hollow frame bodies a1 and b1 made of metal plates with a loose heat insulating material g such as glass wool to dissipate heat to the outside. In addition, the space j between the lower furnace body a and the support frame e and the space k between the upper furnace body b and the cover frame f are also assisted to prevent the danger of heat escaping to the outside. .
【０００６】[0006]
【発明が解決しようとする課題】しかし、中空の枠体ａ
１、ｂ１内にグラスウール等のばら状の断熱材ｇを充填
するような構造の下部炉体ａおよび上部炉体ｂでは、グ
ラスウール等の断熱材ｇが重力や振動、衝撃等によって
経時的に下方側に沈んでいくと言ったことにより充填状
態が変化し、断熱作用が次第に低下する。このためリフ
ロー作業等の加熱処理機能が不安定になり問題となって
いるし、前記中空の枠体ａ１、ｂ１の外側にさらに支持
枠ｅやカバー枠ｆを設ける複雑な構造であるとともに、
枠体ａ１、ｂ１の厚み寸法や、前記断熱性の低下を見越
した断熱設計および安全設計のために前記支持枠ｅおよ
びカバー枠ｆと、下部炉体ａおよび上部炉体ｂとの間の
空間ｊ、ｋの厚み寸法を大きくする必要があるので、全
体に大型で金属板構造物の多い構造の複雑な高価なもの
となる。However, the hollow frame body a
In the lower furnace body a and the upper furnace body b having a structure in which the loose heat insulating material g such as glass wool is filled in 1 and b1, the heat insulating material g such as glass wool lowers with time due to gravity, vibration, impact or the like. The state of filling is changed by saying that it is sinking to the side, and the adiabatic action gradually decreases. For this reason, the heat treatment function such as the reflow work becomes unstable, which is a problem, and the support frame e and the cover frame f are further provided outside the hollow frame bodies a1 and b1.
Space between the support frame e and the cover frame f, and the lower furnace body a and the upper furnace body b for the thickness dimension of the frame bodies a1 and b1 and the heat insulation design and safety design in anticipation of the deterioration of the heat insulation property. Since it is necessary to increase the thickness dimension of j and k, the overall size is large and the structure with many metal plate structures is complicated and expensive.
【０００７】しかも、下部炉体ａおよび上部炉体ｂの双
方の開放縁どうしを当接してシールするにも、支持枠ｅ
内に支持した下部炉体ａの開放縁に、支持枠ｅにヒンジ
連結したカバー枠ｆ内に支持した上部炉体ｂの開放縁ど
うしを当接させる構成の場合は特に、これら開放縁どう
しの位置が複雑にしか決まらない上、従来では図８に示
すような加熱処理工程の全長に亘る長い下部炉体ａおよ
び上部炉体ｂの歪み等があるので、前記開放縁の全周に
て十分に当接させ合うことができない。また開放縁の双
方共に図９に示すような幅の広いシール面ｍ、ｎを有し
ていることによりさらに均一なシール状態を得ることが
できない。In addition, the support frame e is used for contacting and sealing the open edges of both the lower furnace body a and the upper furnace body b.
Particularly, in the case of a configuration in which the open edges of the upper furnace body b supported in the cover frame f hinged to the support frame e are brought into contact with the open edges of the lower furnace body a supported therein, Since the position is determined only in a complicated manner, and conventionally, there are distortions of the long lower furnace body a and the upper furnace body b over the entire length of the heat treatment step as shown in FIG. 8, so that the entire circumference of the open edge is sufficient. Cannot contact each other. Further, since both the open edges have the wide sealing surfaces m and n as shown in FIG. 9, it is impossible to obtain a more uniform sealing state.
【０００８】本発明は、このような従来の問題を解消す
ることを課題とし、小型で金属板構造物の少ない簡単で
安価な構造のもので、十分な断熱性能を安定して発揮す
ることができる電子部品の加熱処理装置を提供すること
を目的とするものである。An object of the present invention is to solve such a conventional problem, and it is a compact, simple and inexpensive structure having a small number of metal plate structures, and is capable of stably exhibiting sufficient heat insulation performance. It is an object of the present invention to provide a heat treatment apparatus for electronic parts that can be used.
【０００９】[0009]
【課題を解決するための手段】本発明は上記のような目
的を達成するために、電子部品が載置された被処理物を
搬送手段により搬送して加熱炉を形成する下部炉体と上
部炉体との間を通過させながら熱処理を行う電子部品の
加熱処理装置において、加熱炉の下部炉体および上部炉
体を、金属板に断熱ボードを張り合わせて形成し、下部
炉体の金属板は、搬送手段の支持枠を共用したことを特
徴とするものである。In order to achieve the above-mentioned object, the present invention has a lower furnace body and an upper furnace body for forming a heating furnace by carrying an object to be processed on which electronic parts are placed by a carrying means. In a heat treatment apparatus for electronic parts that performs heat treatment while passing between a furnace body, a lower furnace body and an upper furnace body of a heating furnace are formed by bonding a heat insulating board to a metal plate, and the metal plate of the lower furnace body is It is characterized in that the supporting frame of the conveying means is shared.
【００１０】上部炉体は被処理物の通過方向に複数に分
割されているのが好適であるし、下部炉体および上部炉
体の一方の開放縁を少なくとも幅狭な凸状として、他方
の開放縁に設けられたシール面と当接するようにするの
が好適である。It is preferable that the upper furnace body is divided into a plurality of parts in the passage direction of the object to be treated, and one open edge of the lower furnace body and the upper furnace body is at least a narrow convex shape and the other is open. It is preferable to make contact with a sealing surface provided on the open edge.
【００１１】[0011]
【作用】本発明の電子部品の加熱処理装置の上記構成で
は、加熱炉の下部炉体および上部炉体を金属板に断熱ボ
ードを張り合わせて形成してあり、断熱ボードは断熱機
構が固定化されているので経時的に断熱性が変化するこ
とはないし、少なくとも片面を金属板に張り合わせれば
必要な機械的強度も得られるので、小型かつ構造の簡単
なもので、十分な断熱性能を安定して発揮することがで
きる。In the above-described structure of the heat treatment apparatus for electronic parts of the present invention, the lower furnace body and the upper furnace body of the heating furnace are formed by bonding a heat insulating board to a metal plate, and the heat insulating board has a heat insulating mechanism fixed thereto. The heat insulation does not change over time, and the required mechanical strength can be obtained by bonding at least one side to a metal plate, so it is compact and has a simple structure, and sufficient heat insulation performance is stable. Can be demonstrated.
【００１２】また、下部炉体の金属板は、下部炉体およ
び上部炉体間で被処理物を通過させる搬送手段の支持枠
を共用してあるので、前記小型化される下部炉体の回り
には余分な空間がなくなり、全体に金属板構造物の少な
いさらに小型のものとすることができ、しかも、このよ
うな構造の簡略化および小型化によっても前記炉体の十
分で安定した断熱性能により熱が外部に逃げることによ
る危険も十分に防止することができる。Further, since the metal plate of the lower furnace body shares the support frame of the conveying means for passing the object to be processed between the lower furnace body and the upper furnace body, the surrounding of the downsized lower furnace body is Has no extra space, and it can be made smaller with less metal plate structure as a whole. Moreover, due to the simplification and miniaturization of such structure, sufficient and stable heat insulation performance of the furnace body can be achieved. As a result, it is possible to sufficiently prevent the danger of heat escaping to the outside.
【００１３】さらに、搬送手段の支持枠を下部炉体の金
属板に共用したことにより、支持枠と下部炉体との位置
および、支持枠にヒンジ連結されて上部炉体を内部に支
持するようなカバー枠等と下部炉体との位置が、それぞ
れ一義的に決定できるので、上部炉体の開放縁を下部炉
体の開放縁に均一に当接させ易く、下部炉体および上部
炉体間のシール性を向上し熱の外部への逃げも抑制し易
くなる。Further, since the supporting frame of the conveying means is shared by the metal plate of the lower furnace body, the positions of the supporting frame and the lower furnace body and the hinge frame are connected to the supporting frame to support the upper furnace body inside. Since it is possible to uniquely determine the positions of the cover frame and the lower furnace body, it is easy to make the open edge of the upper furnace body evenly contact the open edge of the lower furnace body. It is possible to improve the sealing property of and to suppress the escape of heat to the outside.
【００１４】上部炉体を被処理物の通過方向に複数に分
割してあると、上部炉体全体での歪みが生じ難いし、下
部炉体等に歪みがあっても上部炉体のそれぞれが個別に
下部炉体と開放縁どうしで当接する際に、そのような歪
みを吸収するので、下部炉体と上部炉体との開放縁間の
シール性を向上して、熱が外部に逃げるのをさらに防止
し易くすることができる。When the upper furnace body is divided into a plurality of parts in the passage direction of the object to be processed, distortion is unlikely to occur in the entire upper furnace body, and even if the lower furnace body is distorted, each of the upper furnace bodies is Since such strain is absorbed when individually contacting the lower furnace body with the open edges, the sealing property between the open edges of the lower furnace body and the upper furnace body is improved, and the heat escapes to the outside. Can be prevented more easily.
【００１５】また、上部炉体の開放縁を少なくとも幅狭
な凸状として、下部炉体の開放縁に設けられたシール面
と当接するようにすると、一方の開放縁が幅狭な凸状で
あることにより、他方の開放縁のシール面への食い込み
性と接触圧が増大するので、下部炉体と上部炉体との開
放縁間のシール性をさらに向上して、熱が外部に逃げる
のをさらに確実に防止することができる。Further, when the open edge of the upper furnace body is made to have at least a narrow convex shape so as to abut the sealing surface provided on the open edge of the lower furnace body, one open edge becomes a narrow convex shape. As a result, the bite into the sealing surface of the other open edge and the contact pressure increase, so the sealability between the open edges of the lower furnace body and the upper furnace body is further improved, and heat escapes to the outside. Can be more reliably prevented.
【００１６】[0016]
【実施例】以下本発明の一実施例としての電子部品の加
熱処理装置につき、図１〜図５を参照しながら説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A heat treatment apparatus for electronic parts as an embodiment of the present invention will be described below with reference to FIGS.
【００１７】本実施例の加熱処理装置は、例えば電子部
品を載置したプリント基板を被処理物として、リフロー
半田付けを行うリフロー半田付け装置に適用した場合を
示している。しかし、本発明はこれに限らず被処理物を
搬送手段により搬送して加熱炉内を通過させながら加熱
して種々の処理を行う他の装置にも適用できる。The heat treatment apparatus of this embodiment is applied to a reflow soldering apparatus for performing reflow soldering, for example, by using a printed circuit board on which electronic components are mounted as an object to be treated. However, the present invention is not limited to this, and can be applied to other apparatuses that carry various kinds of processing by carrying the object to be processed by the carrying means and heating it while passing through the heating furnace.
【００１８】本実施例の加熱処理装置は図１、図２に示
すように、電子部品が載置された被処理物１を搬送手段
２により搬送して加熱炉１０を形成する下部炉体３と上
部炉体４との間を通過させながら熱処理を行うようにし
ている。In the heat treatment apparatus of this embodiment, as shown in FIGS. 1 and 2, a lower furnace body 3 for forming a heating furnace 10 by conveying an object 1 on which electronic parts are placed by a conveying means 2. The heat treatment is performed while passing between the upper furnace body 4 and the upper furnace body 4.
【００１９】搬送手段２は左右一対のチェンコンベア２
ａを、下部炉体３を収容設置した金属板製の支持枠５に
軸受し支持した駆動軸２ｂおよび従動軸２ｃで連結し
て、下部炉体３および上部炉体４間を循環するように同
期駆動し、双方のチェンコンベア２ａ間に載せた被処理
物１を加熱炉１０の下部炉体３および上部炉体４間を長
手方向に一方から他方に通過させるようにしてある。こ
れにより、搬送手段２の設置のために加熱炉１０外に余
分なスペースを設ける必要がなくなるし、搬送手段２に
よる熱の加熱炉１０外への持ち出しを抑制することがで
きる。しかし、被処理物１の前記のような搬送のために
は、チェンコンベア２ａは下部炉体３および上部炉体４
で循環駆動される必要はなく、復動側が加熱炉１０外を
通るようにすることはできる。The conveying means 2 is a pair of left and right chain conveyors 2.
a is connected to a drive shaft 2b and a driven shaft 2c which are supported and supported by a support frame 5 made of a metal plate in which the lower furnace body 3 is housed and installed so as to circulate between the lower furnace body 3 and the upper furnace body 4. The objects 1 to be processed, which are synchronously driven and placed between both chain conveyors 2a, are passed between the lower furnace body 3 and the upper furnace body 4 of the heating furnace 10 in the longitudinal direction from one to the other. Thereby, it is not necessary to provide an extra space outside the heating furnace 10 for installing the transfer means 2, and it is possible to suppress heat taken out of the heating furnace 10 by the transfer means 2. However, in order to convey the object 1 to be processed as described above, the chain conveyor 2a is used for the lower furnace body 3 and the upper furnace body 4.
It is not necessary to circulate in the heating furnace, and the backward side can pass outside the heating furnace 10.
【００２０】下部炉体３および上部炉体４は本実施例の
場合、被処理物１の入口１１の側から出口１２の側に向
けて、予熱部１ゾーン１３、予熱部２ゾーン１４、およ
びリフロー部１５に区分けされ、リフロー部１５はさら
に前段リフロー部１５ａと後段リフロー部１５ｂとに区
分けしてあるが、これに限らずリフロー半田付けの条件
や被処理物１の種類、あるいは被処理物１の加熱処理の
種類に応じて、区分けを省略し、また区分け状態を種々
に設計することができる。In the case of the present embodiment, the lower furnace body 3 and the upper furnace body 4 are arranged in the preheating section 1 zone 13, the preheating section 2 zone 14, and the preheating section 1 zone 13 from the inlet 11 side toward the outlet 12 side of the object 1. The reflow section 15 is further divided into a pre-stage reflow section 15a and a post-stage reflow section 15b. However, the reflow section 15 is not limited to this, but the reflow soldering conditions, the type of the object 1 to be processed, or the object to be processed Depending on the type of heat treatment No. 1, the division can be omitted and the division state can be variously designed.
【００２１】本実施例で区分けされている前記予熱部１
ゾーン１３、予熱部２ゾーン１４、および前段リフロー
部１５ａと後段リフロー部１５ｂのそれぞれに対応し
て、下部炉体３の底部に位置するシロッコファン２１
と、このシロッコファン２１によって吸引される上部炉
体４側からの吹出し加熱空気を送り込まれてこれを図２
に示す加熱炉１０の後方のヒータ２２を通過させた後、
上部炉体４内に戻すダクト２３とが設けられ、下部炉体
３および上部炉体４間を通過する被処理物１に所定の加
熱処理を行うようになっている。The preheating section 1 classified in this embodiment
The sirocco fan 21 located at the bottom of the lower furnace body 3 corresponding to each of the zone 13, the preheating section 2 zone 14, and the pre-stage reflow section 15a and the post-stage reflow section 15b.
2 and heated air blown from the upper furnace body 4 side sucked by the sirocco fan 21 is fed into
After passing through the heater 22 behind the heating furnace 10 shown in
A duct 23 for returning into the upper furnace body 4 is provided, and a predetermined heat treatment is performed on the object 1 to be processed passing between the lower furnace body 3 and the upper furnace body 4.
【００２２】予熱部１ゾーン１３、予熱部２ゾーン１
４、および前段リフロー部１５ａと後段リフロー部１５
ｂでの上部炉体４から吹き出される加熱空気が被処理物
１に均等に、かつ十分に及ぶように、上部炉体４の下向
き開放部にはノズル状の吹出し口２４が多数配列されて
いる。しかし、このための吹出し口構造は各種条件に応
じて種々に設計される。Preheating section 1 zone 13, preheating section 2 zone 1
4, and pre-stage reflow section 15a and post-stage reflow section 15
A large number of nozzle-like outlets 24 are arranged in the downward opening of the upper furnace body 4 so that the heated air blown out from the upper furnace body 4 in b) evenly and sufficiently reaches the object to be treated 1. There is. However, the outlet structure for this purpose is designed variously according to various conditions.
【００２３】本実施例の加熱処理装置は、リフロー半田
付け装置であることから、リフロー後の被処理物１を冷
却して半田付けが首尾よく達成されるようにするため、
加熱炉１０の出口１２の後に冷却ファン２５を設置した
冷却ゾーン２６を設けてある。Since the heat treatment apparatus of this embodiment is a reflow soldering apparatus, in order to cool the object 1 to be processed after reflow so that soldering can be achieved successfully,
A cooling zone 26 in which a cooling fan 25 is installed is provided after the outlet 12 of the heating furnace 10.
【００２４】そこで、下部炉体３を収容設置している支
持枠５、および上部炉体４を収容支持している金属製の
カバー枠６は、前記加熱炉１０および冷却ゾーン２６を
囲う大きさに形成してある。しかし、これは本発明に必
須のものではない。Therefore, the supporting frame 5 accommodating and installing the lower furnace body 3 and the metal cover frame 6 accommodating and supporting the upper furnace body 4 have a size that surrounds the heating furnace 10 and the cooling zone 26. It is formed on. However, this is not essential to the invention.
【００２５】また、支持枠５を受載した基台３１内には
排気ファン３２が設けられ、加熱炉１０の入口１１およ
び出口１２部、あるいは予熱２ゾーン１４と前段リフロ
ー部１５ａとの間の上部に吸引口３３ａを有する給気ダ
クト３３を通じて、入口１１および出口１２、および前
記途中部で、加熱炉１０内の加熱空気を吸引して所定の
外部位置に強制的に排気するようにしている。これによ
って、加熱炉１０内の各ゾーンでの個別の加熱処理が、
外気や他のゾーンの加熱空気の混入によって悪影響を受
けるのを防止することができる。しかし、これも本発明
に必須のものではない。An exhaust fan 32 is provided in the base 31 on which the support frame 5 is mounted, and the exhaust fan 32 is provided between the inlet 11 and the outlet 12 of the heating furnace 10, or between the preheating 2 zone 14 and the pre-reflow portion 15a. Through the air supply duct 33 having the suction port 33a in the upper portion, the heated air in the heating furnace 10 is sucked at the inlet 11 and the outlet 12, and the intermediate portion, and is forcibly discharged to a predetermined external position. . Thereby, the individual heat treatment in each zone in the heating furnace 10 is
It is possible to prevent adverse effects due to the mixture of outside air and heated air in other zones. However, this is also not essential to the invention.
【００２６】特に本実施例では、加熱炉１０の下部炉体
３および上部炉体４は、図２、図３に示すように、金属
板７に断熱ボード８を張り合わせて形成し、下部炉体３
の金属板は、搬送手段２の前記支持枠５を共用してあ
る。本発明では断熱ボード８は種々の断熱材による断熱
構造を樹脂や接着剤、個化材、結合材、溶着、圧縮等各
種の手法で、あるいは樹脂の発泡等の化学構造上でボー
ド状に固定化されたものを言う。In particular, in this embodiment, the lower furnace body 3 and the upper furnace body 4 of the heating furnace 10 are formed by laminating a heat insulating board 8 on a metal plate 7 as shown in FIGS. Three
The metal plate of (1) shares the support frame 5 of the conveying means 2. In the present invention, the heat insulating board 8 has a heat insulating structure made of various heat insulating materials fixed in a board shape by various methods such as resin, adhesive, individualizing material, binder, welding, compression, or on a chemical structure such as resin foaming. Say what has been transformed.
【００２７】これにより、断熱ボード８は断熱機構が固
定化されているので経時的に断熱性が変化することはな
いし、少なくとも片面を金属板７に張り合わせれば必要
な保形性や機械的強度が得られるので、小型かつ構造の
簡単なもので、十分な断熱性能を安定して発揮すること
ができる。As a result, since the heat insulating mechanism of the heat insulating board 8 is fixed, the heat insulating property does not change over time, and if at least one surface is attached to the metal plate 7, the required shape retaining property and mechanical strength are maintained. As a result, it is small and has a simple structure, and it is possible to stably exhibit sufficient heat insulation performance.
【００２８】また、下部炉体３の金属板７は、前記搬送
手段２の支持枠５を共用してあるので、前記小型化され
る下部炉体３の回りには余分な空間がなくなり、全体に
金属板構造物の少ないさらに小型のものとすることがで
き、しかも、このような構造の簡略化および小型化によ
っても前記下部炉体３および上部炉体４の十分で安定し
た断熱性能により熱が外部に逃げることによる危険も十
分に防止することができる。Further, since the metal plate 7 of the lower furnace body 3 shares the support frame 5 of the carrying means 2, there is no extra space around the downsized lower furnace body 3 and the whole structure is reduced. In addition, it is possible to reduce the size of the metal plate structure to a smaller size. Moreover, even if such a structure is simplified and downsized, the lower furnace body 3 and the upper furnace body 4 have sufficient and stable heat insulation performance to generate heat. It is also possible to sufficiently prevent the danger of escaping to the outside.
【００２９】図２では、こうして小型化できた支持枠５
の回りの余裕空間を利用して、機器や工具類、その他の
物の収納スペース４１、および配線、配管スペース４２
を設け、これに扉４３、４４を設けて開閉できるように
してある。In FIG. 2, the support frame 5 thus miniaturized.
Using the extra space around the equipment, tools, other things storage space 41, wiring, piping space 42
Is provided, and doors 43 and 44 are provided on the door so that it can be opened and closed.
【００３０】もっとも本実施例では図２、図３に示すよ
うに、下部炉体３を形成する断熱ボード８の内面および
外面に金属板７を張り合わせてあるが、支持枠５が前記
形状上から下部炉体３の外面と離れる部分では、下部炉
体３の外面の金属板７を省略するようにしてある。しか
し、下部炉体３の内外面の少なくとも一方を金属板７と
張り合わせればよいので問題はない。この意味で下部炉
体３の図３における外面に支持枠５を金属板７に共用し
てこれに張り合わされている部分の内面は、金属板７と
の張り合わせを省略することができる。In this embodiment, however, as shown in FIGS. 2 and 3, the heat insulating board 8 forming the lower furnace body 3 is laminated with metal plates 7 on its inner and outer surfaces. The metal plate 7 on the outer surface of the lower furnace body 3 is omitted in a portion separated from the outer surface of the lower furnace body 3. However, there is no problem because at least one of the inner and outer surfaces of the lower furnace body 3 may be attached to the metal plate 7. In this sense, the inner surface of the portion of the lower furnace body 3 that is attached to the outer surface of the lower furnace body 3 in FIG. 3 that shares the support frame 5 with the metal plate 7 can be omitted.
【００３１】また、カバー枠６は支持枠５に開閉できる
ようにヒンジピン３４にてヒンジ連結されて上部炉体４
を内部に支持し、これをも同時に開閉するようにしてあ
る。The cover frame 6 is hingedly connected to the support frame 5 by a hinge pin 34 so that the cover frame 6 can be opened and closed.
Is supported inside, and is also opened and closed at the same time.
【００３２】これにより、カバー枠６および上部炉体４
を開いてメンテナンスを行い、またこれの終了後カバー
枠６および上部炉体４を閉じて再度加熱処理を行うと云
った作業が簡易に短時間で達成することができる。もっ
とも、これも本発明では必須のものでなく、例えばカバ
ー枠６を支持枠５に単独でヒンジ連結し、上部炉体４も
下部炉体３に単独でヒンジ連結して、双方を個別に開閉
できるようにすることもできる。As a result, the cover frame 6 and the upper furnace body 4 are
It is possible to simply and quickly carry out the work of opening and performing maintenance, closing the cover frame 6 and the upper furnace body 4 after the completion of this, and performing heat treatment again. However, this is also not essential in the present invention. For example, the cover frame 6 is hinge-coupled to the support frame 5 alone, and the upper furnace body 4 is also hinge-coupled independently to the lower furnace body 3 to open and close them individually. You can also allow it.
【００３３】そして本実施例では、前記のように搬送手
段２の支持枠５を下部炉体３の金属板７に共用したこと
により、支持枠５と下部炉体３との位置および、支持枠
５に開閉できるようにヒンジピン３４にてヒンジ連結さ
れて上部炉体４を内部に支持するようにした本実施例の
カバー枠６等と下部炉体３との位置が、それぞれ一義的
に決定できるので、上部炉体４の開放縁４ａを下部炉体
３の開放縁３ａに均一に当接させ易く、下部炉体３およ
び上部炉体４間のシール性を向上し熱の外部への逃げも
抑制し易くなる。In this embodiment, since the supporting frame 5 of the conveying means 2 is shared with the metal plate 7 of the lower furnace body 3 as described above, the positions of the supporting frame 5 and the lower furnace body 3 and the supporting frame 5, the positions of the cover frame 6 and the like of the present embodiment, which are hingedly connected by the hinge pins 34 to support the upper furnace body 4 and the lower furnace body 3, can be uniquely determined. Therefore, the open edge 4a of the upper furnace body 4 can be easily brought into uniform contact with the open edge 3a of the lower furnace body 3, the sealing property between the lower furnace body 3 and the upper furnace body 4 can be improved, and heat can escape to the outside. It becomes easy to control.
【００３４】さらに本実施例では図１、図４に示すよう
に、上部炉体３は被処理物１の通過方向、つまり長手方
向に複数に分割している。具体的には３つに分割してい
る。Further, in this embodiment, as shown in FIGS. 1 and 4, the upper furnace body 3 is divided into a plurality of parts in the passage direction of the object 1, that is, the longitudinal direction. Specifically, it is divided into three.
【００３５】これによって、上部炉体４全体での歪みが
生じ難いし、下部炉体３等に少々の歪みがあっても上部
炉体４の分割炉体４Ａ〜４Ｃのそれぞれが個別に下部炉
体３と開放縁３ａ、４ａどうしで当接し合う際に、その
ような歪みを吸収するので、下部炉体３と上部炉体４と
の開放縁３ａ、４ａ間のシール性を向上して、熱が外部
に逃げるのをさらに防止し易くすることができる。As a result, distortion is unlikely to occur in the upper furnace body 4 as a whole, and even if the lower furnace body 3 or the like is slightly distorted, each of the divided furnace bodies 4A to 4C of the upper furnace body 4 individually has a lower furnace body. Since such a strain is absorbed when the body 3 and the open edges 3a, 4a are brought into contact with each other, the sealability between the open edges 3a, 4a of the lower furnace body 3 and the upper furnace body 4 is improved, It is possible to further easily prevent the heat from escaping to the outside.
【００３６】また、図５に示すように、下部炉体３およ
び上部炉体４の開放縁３ａ、４ａの一方、本実施例では
上部炉体４の開放縁４ａを、少なくとも幅狭な凸状とし
て、他方、本実施例では下部炉体３の開放縁３ａに設け
られたシール面３ｂと当接するようにしてある。なお前
記開放縁を凸状とする側を下部炉体３としてもよい。Further, as shown in FIG. 5, one of the open edges 3a and 4a of the lower furnace body 3 and the upper furnace body 4, that is, the open edge 4a of the upper furnace body 4 in this embodiment is at least a narrow convex shape. On the other hand, on the other hand, in this embodiment, the lower furnace body 3 is brought into contact with the seal surface 3b provided on the open edge 3a. Note that the lower furnace body 3 may be provided on the side where the open edge is convex.
【００３７】これによって、一方の開放縁４ａが幅狭な
凸状であることにより、他方の開放縁３ａのシール面３
ｂへの食い込み性と接触圧が増大するので、下部炉体３
と上部炉体４の開放縁３ａ、４ａ間のシール性をさらに
向上して、熱が外部に逃げるのをさらに確実に防止する
ことができる。凸状の幅が狭くなり、また尖鋭なエッジ
になるほどシール性は向上する。As a result, since the one open edge 4a has a narrow convex shape, the sealing surface 3 of the other open edge 3a is formed.
Since the biteability into b and the contact pressure increase, the lower furnace body 3
The sealability between the open edges 3a and 4a of the upper furnace body 4 can be further improved, and heat can be more reliably prevented from escaping to the outside. The narrower the convex width and the sharper the edge, the better the sealing performance.
【００３８】[0038]
【発明の効果】本発明の電子部品の加熱処理装置によれ
ば、加熱炉の下部炉体および上部炉体は金属板に断熱ボ
ードを張り合わせてあって、断熱ボードが断熱機構が固
定化された経時的に断熱性が変化しないものであること
により、少なくとも片面を金属板に張り合わせれば必要
な機械的強度も得られ、小型かつ構造の簡単なもので、
十分な断熱性能を安定して発揮することができる。According to the heat treatment apparatus for electronic parts of the present invention, the lower furnace body and the upper furnace body of the heating furnace have the heat insulating board bonded to the metal plate, and the heat insulating board has the heat insulating mechanism fixed thereto. Since the heat insulating property does not change over time, the required mechanical strength can be obtained if at least one surface is attached to a metal plate, and it is small and has a simple structure.
Sufficient heat insulation performance can be stably exhibited.
【００３９】また、下部炉体の金属板は、被処理物の搬
送手段の支持枠を共用して、前記小型化される下部炉体
の回りに余分な空間ができなくし、全体に金属板構造物
の少ないさらに小型のものとして、しかも、このような
構造の簡略化および小型化によっても前記炉体の十分で
安定した断熱性能により熱が外部に逃げることによる危
険も十分に防止することができる。Further, the metal plate of the lower furnace body shares the support frame of the means for transporting the object to be treated so that no extra space is formed around the downsized lower furnace body, and the metal plate structure is entirely formed. As a smaller and more compact one, and even if the structure is simplified and miniaturized, the risk of heat escaping to the outside can be sufficiently prevented by the sufficient and stable heat insulation performance of the furnace body. .
【００４０】さらに、搬送手段の支持枠の下部炉体の金
属板への共用で、支持枠と下部炉体との位置および、支
持枠にヒンジ連結されて上部炉体を内部に支持するよう
なカバー枠等と下部炉体との位置が、それぞれ一義的に
決定して、上部炉体の開放縁を下部炉体の開放縁に均一
に当接させ易くし、下部炉体および上部炉体間のシール
性を向上し熱の外部への逃げも抑制し易くすることがで
きる。Further, the supporting frame of the conveying means is commonly used for the metal plate of the lower furnace body, and the position of the supporting frame and the lower furnace body is hinged to the supporting frame to support the upper furnace body inside. The positions of the cover frame and the lower furnace body are uniquely determined so that the open edge of the upper furnace body can easily contact the open edge of the lower furnace body uniformly. It is possible to improve the sealing property of the above and to easily suppress the escape of heat to the outside.
【００４１】上部炉体を被処理物の通過方向に複数に分
割してあると、上部炉体全体での歪みが生じ難いし、下
部炉体等に歪みがあっても上部炉体のそれぞれが個別に
下部炉体と開放縁どうしで当接する際に、そのような歪
みを吸収するので、下部炉体と上部炉体との開放縁間の
シール性を向上して、熱が外部に逃げるのをさらに防止
し易くすることができる。When the upper furnace body is divided into a plurality of parts in the passage direction of the object to be treated, distortion is unlikely to occur in the entire upper furnace body, and even if the lower furnace body is distorted, each of the upper furnace bodies is Since such strain is absorbed when individually contacting the lower furnace body with the open edges, the sealing property between the open edges of the lower furnace body and the upper furnace body is improved, and the heat escapes to the outside. Can be prevented more easily.
【００４２】また、上部炉体の開放縁を少なくとも幅狭
な凸状として、下部炉体の開放縁に設けられたシール面
と当接するようにすると、一方の開放縁が幅狭な凸状で
あることにより、他方の開放縁のシール面への食い込み
性と接触圧が増大するので、下部炉体と上部炉体との開
放縁間のシール性をさらに向上して、熱が外部に逃げる
のをさらに確実に防止することができる。Further, when the open edge of the upper furnace body is made to have at least a narrow convex shape so as to contact the sealing surface provided on the open edge of the lower furnace body, one open edge becomes a narrow convex shape. As a result, the bite into the sealing surface of the other open edge and the contact pressure increase, so the sealability between the open edges of the lower furnace body and the upper furnace body is further improved, and heat escapes to the outside. Can be more reliably prevented.
【図１】本発明の第１の実施例としての電子部品の加熱
処理装置を示す垂直面での縦断面図である。FIG. 1 is a vertical cross-sectional view on a vertical plane showing a heat treatment apparatus for electronic parts according to a first embodiment of the present invention.
【図２】図１の加熱処理装置の横断面図である。2 is a cross-sectional view of the heat treatment apparatus of FIG.
【図３】図１の加熱処理装置の下部炉体部分の水平面で
の縦断面図である。FIG. 3 is a vertical cross-sectional view of a lower furnace body portion of the heat treatment apparatus of FIG. 1 in a horizontal plane.
【図４】図１の加熱処理装置の加熱炉の下部炉体および
上部炉体の斜視図である。FIG. 4 is a perspective view of a lower furnace body and an upper furnace body of the heating furnace of the heat treatment apparatus of FIG.
【図５】図４の加熱炉の横断面図である。5 is a cross-sectional view of the heating furnace of FIG.
【図６】従来の電子部品の加熱処理装置を示す横断面図
である。FIG. 6 is a cross-sectional view showing a conventional heat treatment apparatus for electronic parts.
【図７】図６の加熱処理装置の下部炉体部分の水平面で
の縦断面図である。7 is a vertical cross-sectional view of the lower furnace body portion of the heat treatment apparatus of FIG. 6 in a horizontal plane.
【図８】図８の加熱炉の斜視図である。FIG. 8 is a perspective view of the heating furnace of FIG.
【図９】図６の加熱処理装置の加熱炉の一部を断面で見
た正面図である。9 is a front view showing a cross section of a part of a heating furnace of the heat treatment apparatus of FIG.
１ 被処理物 ２ 搬送手段 ３ 下部炉体 ４ 上部炉体 ３ａ、４ａ 開放縁 ３ｂ シール面 ５ 支持枠 ６ カバー枠 ７ 金属板 ８ 断熱ボード １０ 加熱炉 ３４ ヒンジピン DESCRIPTION OF SYMBOLS 1 Object to be processed 2 Transport means 3 Lower furnace body 4 Upper furnace body 3a, 4a Open edge 3b Sealing surface 5 Support frame 6 Cover frame 7 Metal plate 8 Insulation board 10 Heating furnace 34 Hinge pin
フロントページの続き (72)発明者 内藤 孝夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内Front page continued (72) Inventor Takao Naito 1006 Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (3)
段により搬送して加熱炉を形成する下部炉体と上部炉体
との間を通過させながら熱処理を行う電子部品の加熱処
理装置において、 加熱炉の下部炉体および上部炉体を、金属板に断熱ボー
ドを張り合わせて形成し、下部炉体の金属板は、搬送手
段の支持枠を共用したことを特徴とする電子部品の加熱
処理装置。1. A heat treatment apparatus for an electronic component, which heat-treats an object to be treated on which an electronic component is placed, by conveying it by a conveying means and passing it between a lower furnace body and an upper furnace body forming a heating furnace. In the above, the lower furnace body and the upper furnace body of the heating furnace are formed by laminating a heat insulating board to a metal plate, and the metal plate of the lower furnace body is a heating frame for electronic parts characterized by sharing a supporting frame of the transportation means. Processing equipment.
分割されている請求項１に記載の電子部品の加熱処理装
置。2. The heat treatment apparatus for electronic parts according to claim 1, wherein the upper furnace body is divided into a plurality of pieces in the passage direction of the object to be treated.
を少なくとも幅狭な凸状として、他方の開放縁に設けら
れたシール面と当接するようにした請求項１、２のいず
れかに記載の電子部品の加熱処理装置。3. The lower furnace body or the upper furnace body, wherein one open edge of at least one of the open edges is a narrow convex shape, and is brought into contact with a sealing surface provided on the other open edge. The heat treatment device for electronic parts according to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP596394A JPH07212026A (en) | 1994-01-24 | 1994-01-24 | Electrode part heat treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP596394A JPH07212026A (en) | 1994-01-24 | 1994-01-24 | Electrode part heat treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07212026A true JPH07212026A (en) | 1995-08-11 |
Family
ID=11625544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP596394A Pending JPH07212026A (en) | 1994-01-24 | 1994-01-24 | Electrode part heat treatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07212026A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060913A1 (en) * | 1999-04-06 | 2000-10-12 | Eightech Tectron Co., Ltd. | Device for heating printed-circuit board |
| JP2008170073A (en) * | 2007-01-12 | 2008-07-24 | Yokota Technica:Kk | Heating device |
| JP2009057621A (en) * | 2007-09-03 | 2009-03-19 | Jfe Steel Kk | Continuous heating furnace |
-
1994
- 1994-01-24 JP JP596394A patent/JPH07212026A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060913A1 (en) * | 1999-04-06 | 2000-10-12 | Eightech Tectron Co., Ltd. | Device for heating printed-circuit board |
| US6423945B1 (en) | 1999-04-06 | 2002-07-23 | Eighttech Tectron Co., Ltd. | Device for heating printed-circuit board |
| KR100621301B1 (en) * | 1999-04-06 | 2006-09-13 | 에이텍크 테크트론 가부시키가이샤 | Heater of printed board |
| JP2008170073A (en) * | 2007-01-12 | 2008-07-24 | Yokota Technica:Kk | Heating device |
| JP2009057621A (en) * | 2007-09-03 | 2009-03-19 | Jfe Steel Kk | Continuous heating furnace |
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