JPS5939438Y2 - High frequency heating device - Google Patents
High frequency heating deviceInfo
- Publication number
- JPS5939438Y2 JPS5939438Y2 JP11499979U JP11499979U JPS5939438Y2 JP S5939438 Y2 JPS5939438 Y2 JP S5939438Y2 JP 11499979 U JP11499979 U JP 11499979U JP 11499979 U JP11499979 U JP 11499979U JP S5939438 Y2 JPS5939438 Y2 JP S5939438Y2
- Authority
- JP
- Japan
- Prior art keywords
- ridge waveguide
- heating device
- frequency heating
- high frequency
- protrusion
- 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
- Constitution Of High-Frequency Heating (AREA)
- Drying Of Solid Materials (AREA)
Description
【考案の詳細な説明】
この考案は、いわゆるリッジ導波管を用いてシート状被
加熱物を乾燥させる高周波加熱装置の構造改善に関し、
シート状被加熱物の湿気による汚損防止を図るものであ
る。[Detailed description of the invention] This invention relates to structural improvement of a high-frequency heating device that dries a sheet-shaped object to be heated using a so-called ridge waveguide.
This is intended to prevent staining of the sheet-shaped heated object due to moisture.
従来より紙や布等の接着乾燥を行わせるには、電界集中
を局所的に行わせることができる第１図に示すようなリ
ッジ導波管を用いる高周波加熱装置が賞用されている。Conventionally, a high frequency heating device using a ridge waveguide as shown in FIG. 1, which can locally concentrate an electric field, has been used to dry adhesives of paper, cloth, etc.
すなわち、シート状被加熱物としての多数の伝票を束ね
て、その端部を水溶性糊等で部分的に接着させたい場合
には、伝票の束１をリッジ導波管２の電界直交面である
Ｈ面３に設けて７ランジ付スリツト４より、Ｈ面３と対
向するＨ面５に設けた内方突出部６の凹溝Ｔへ橋架させ
て、リッジ導波管２と結合しているマイクロ波発生器と
してのマグネトロン（図示省略）から、マイクロ波を伝
送して、細線８，８．・・・で示す集中電界により伝票
の束１の糊９を連着した部分を加熱・乾燥させて接着し
ている。In other words, if you want to bundle a large number of slips as sheet-shaped objects to be heated and partially adhere their ends with water-soluble glue, etc., bundle the slips 1 on the plane perpendicular to the electric field of the ridge waveguide 2. A 7-lunged slit 4 provided on a certain H surface 3 is bridged to a concave groove T of an inward protrusion 6 provided on an H surface 5 facing the H surface 3, and is coupled to the ridge waveguide 2. Microwaves are transmitted from a magnetron (not shown) as a microwave generator to the thin wires 8, 8 . The part of the bundle of slips 1 to which the glue 9 is attached is heated and dried by a concentrated electric field shown by . . . to be bonded.
ところで、マイクロ波加熱・乾燥を行わせる場合には、
糊９がマイクロ波を吸収し、熱風乾燥による場合よりも
極めて迅速に加熱され、しかも伝票の束１自身は、マイ
クロ波を透過させるので、焦げを招かない長所がある反
面、リッジ導波管２内部は、一般の導波管と同様に、安
全対策上マイクロ波漏れを防止しなければならないので
、密閉構造とすることが原則であって、マイクロ波加熱
を行った時の糊９より発生した蒸気が、特に突出部６の
凹溝７へこもり結露しがちである。By the way, when performing microwave heating and drying,
The glue 9 absorbs microwaves and is heated much more quickly than in the case of hot air drying, and the bundle of slips 1 itself transmits microwaves, so it has the advantage of not causing scorching, but the ridge waveguide 2 As with general waveguides, microwave leakage must be prevented for safety reasons, so as a general rule, the structure must be sealed. Steam especially tends to accumulate in the groove 7 of the protrusion 6 and form condensation.
その結果伝票の束１の端部を濡らし、接着は良好となっ
ても、伝票の汚損をひき起す欠点があった。As a result, the ends of the bundle 1 of slips were wetted, and although the adhesion was good, there was a drawback that the slips were stained.
そこで、この欠点を解消するためニ、リッジ導波管２の
Ｈ面５に蒸気抜き孔としての小径の透孔１０．１０．・
・・・・・を設けたり、第２図に示すように直接突出部
６の凹溝Ｉへ外部と連通ずる小径の貫通孔１１を設けた
りする手段を採用して、外部より真空ポンプ等（図示省
略）により蒸気の排気を行う対策が施されていたが、上
述のとおり安全対策上透孔１０，１０．・・・・・・や
貫通孔１１は小径とせざるを得す、排気抵抗が犬となる
ので、十分な蒸気排気機能を果し得えていない。Therefore, in order to eliminate this drawback, small-diameter through holes 10.10.・
As shown in FIG. However, as mentioned above, as a safety measure, the through holes 10, 10. . . . and the through-hole 11 have to be made small in diameter, and the exhaust resistance becomes too large, so that a sufficient steam exhaust function cannot be achieved.
よって根本的な結露防止を行わせる必要があった。Therefore, it was necessary to take fundamental measures to prevent condensation.
この考案は、上記のシート状被加熱物の湿気による汚損
防止を図るために提案するに至ったもので、方形導波管
の内壁面に内方突出部を設けたリッジ導波管にシート状
被加熱物を挿入して乾燥させるものにおいて、前記内方
突出部に加熱手段を設けることを特徴としている。This idea was proposed in order to prevent the above-mentioned sheet-shaped heated object from being contaminated by moisture. The device for inserting and drying the heated object is characterized in that a heating means is provided in the inwardly protruding portion.
以下この考案の実施例を図面を参照しながら説明する。Examples of this invention will be described below with reference to the drawings.
第３図はこの考案の第１実施例を示す高周波加熱装置の
リッジ導波管の横断面図で、従来の第１図及び第２図に
示したものと同一図番は、同一名称である。Figure 3 is a cross-sectional view of a ridge waveguide of a high-frequency heating device showing the first embodiment of this invention, and the same figure numbers as those shown in conventional Figures 1 and 2 have the same names. .
さらに、１３．１３は突出部６の内部に凹溝７と平行に
設けた貫通丸穴１４．１４に埋設した結露防止用の加熱
手段としての、丸棒状シ−スヒータで、第４図にその一
部を切欠き断面で示すように、ヘリカル状に巻回したニ
クロム線１５を絶縁性の酸化アルミナ１６で被覆して、
保護管であるステンレス鋼管１７中へ入れて封止したも
のである。Furthermore, 13.13 is a round rod-shaped sheath heater as a heating means for preventing dew condensation, which is embedded in a through hole 14.14 provided inside the protrusion 6 in parallel with the groove 7. As shown in a partially cutaway cross section, a helically wound nichrome wire 15 is coated with insulating alumina oxide 16.
It is placed in a stainless steel tube 17 which is a protection tube and sealed.
上記のリッジ導波管を具備する高周波加熱装置では、マ
グネトロンが発振してマイクロ波がリッジ導波管内へ伝
送されると、突出部６の凹溝７とフランジ付スリット４
とを結ぶ直線に沿うようにマイクロ波電界８，８．・・
・−・・が集中するので、糊９を塗布端部へ塗布して束
ねた伝票の束１を、フランジ付スリット４よりリッジ導
波管２内へ挿入すると、直ちに糊９がマイクロ波を吸収
し、その水分が蒸気となる。In the high frequency heating device equipped with the above-mentioned ridge waveguide, when the magnetron oscillates and the microwave is transmitted into the ridge waveguide, the concave groove 7 of the protrusion 6 and the flanged slit 4
Microwave electric field 8, 8.・・・
... is concentrated, so when the bundle 1 of slips, which has been bound by applying glue 9 to the applied end, is inserted into the ridge waveguide 2 through the flanged slit 4, the glue 9 immediately absorbs the microwaves. The water then turns into steam.
この際蒸気は大部分が凹溝７内へ集中するが、突出部６
内のシースヒータ１３゜１３により凹溝１の内壁が加熱
されているので、結露することがない。At this time, most of the steam is concentrated in the groove 7, but the protrusion 6
Since the inner wall of the concave groove 1 is heated by the inner sheath heater 13, no dew condensation occurs.
しかもシースヒータ１３゜１３は周知の通り動作温度が
低く保温に適しているので、印刷直後の伝票の束１のイ
ンクを予め加熱乾燥後、マイクロ波により糊９のみを乾
燥させることもできるので、インク乾燥と糊乾燥・接着
を別工程で行う必要もなく、工数低減をも図ることがで
きる。Moreover, as is well known, the sheath heater 13° 13 has a low operating temperature and is suitable for heat retention, so it is possible to heat and dry the ink on the bundle 1 of slips immediately after printing and then dry only the glue 9 using microwaves. There is no need to perform drying and glue drying/adhesion in separate processes, and the number of man-hours can be reduced.
尚、凹溝Ｉ及び貫通孔１１中の蒸気は結露しないので、
従来と同様に、真空ポンプ等により徐々に排気しても何
ら支障はない。In addition, since the steam in the groove I and the through hole 11 does not condense,
As in the past, there is no problem even if the air is gradually evacuated using a vacuum pump or the like.
次に第５図は、第２実施例としての高周波加熱装置のリ
ッジ導波管を示し、第３図に示した第１実施例のものと
同一図番は同一名称である。Next, FIG. 5 shows a ridge waveguide of a high-frequency heating device as a second embodiment, and the same figure numbers and names as those of the first embodiment shown in FIG. 3 have the same names.
この場合には、突出部６′が、例えば発泡性金属等で形
成されて卦り、極めて通気性良好に設定しであるので、
貫通孔１１より排出した蒸気を含む温風を吸湿フィルタ
を経由して再度透孔１０，１０よりリッジ導波管２内へ
送り込むことにより、シースヒータの加熱度合を低減さ
せてもよい特徴が加わる。In this case, the protrusion 6' is made of, for example, a foamed metal, and is designed to have extremely good air permeability.
An added feature is that the degree of heating of the sheath heater can be reduced by sending the warm air containing steam discharged from the through hole 11 through the moisture absorption filter and into the ridge waveguide 2 through the through holes 10, 10 again.
尚、上記２つの実施例は、加熱手段としてシースヒータ
を採用した場合であるが、設計の都合によっては、絶縁
性良好な加熱コイルを採用してもよいことは、この考案
の主旨から明白である。Although the above two embodiments are cases in which a sheath heater is employed as the heating means, it is clear from the gist of this invention that a heating coil with good insulation may be employed depending on the design convenience. .
この考案は、突出部６に加熱手段を設ける簡単な構成で
、凹溝内の結露防止を行わせて、シート状被加熱物の汚
損防止を達成するばかりでなく、シート状被加熱物のイ
ンク等の塗着物の予備乾燥をも行わせることができ、乾
燥工程工数低減も図れる優れた実用的効果がある。This invention has a simple structure in which a heating means is provided in the protrusion 6, and prevents dew condensation within the concave groove, thereby not only preventing staining of the sheet-shaped heated object but also preventing ink from forming on the sheet-shaped heated object. It has an excellent practical effect of being able to pre-dry coatings such as, etc., and reducing the number of steps in the drying process.
第１図及び第２図は、従来のリッジ導波管を用いる高周
波加熱装置のリッジ導波管の断面図、第３図はこの考案
の第１実施例を示す高周波加熱装置のリッジ導波管の断
面図、第４図は加熱手段の一部切欠き断面図、第５図は
第２実施例を示す高周波加熱装置のリッジ導波管の断面
図である。
１・・・・・・シート状被加熱物、２・・・・・・リッ
ジ導波管、６．６′・・・・・・突出部、１３，１３・
・・・・・加熱手段。1 and 2 are cross-sectional views of a ridge waveguide of a high frequency heating device using a conventional ridge waveguide, and FIG. 3 is a ridge waveguide of a high frequency heating device showing the first embodiment of this invention. 4 is a partially cutaway sectional view of a heating means, and FIG. 5 is a sectional view of a ridge waveguide of a high frequency heating device showing a second embodiment. DESCRIPTION OF SYMBOLS 1...Sheet-like heated object, 2...Ridge waveguide, 6.6'...Protrusion, 13,13.
...Heating means.
Claims (1)
ート状被加熱物を挿入して乾燥させるものにおいて、前
記内方突出部に加熱手段を設けたことを特徴とする高周
波加熱装置。A sheet-shaped heated object is inserted into a ridge waveguide having a protrusion on the inner wall surface of the rectangular waveguide and dried, characterized in that a heating means is provided on the inner protrusion. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11499979U JPS5939438Y2 (en) | 1979-08-20 | 1979-08-20 | High frequency heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11499979U JPS5939438Y2 (en) | 1979-08-20 | 1979-08-20 | High frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5632396U JPS5632396U (en) | 1981-03-30 |
| JPS5939438Y2 true JPS5939438Y2 (en) | 1984-11-02 |
Family
ID=29347235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11499979U Expired JPS5939438Y2 (en) | 1979-08-20 | 1979-08-20 | High frequency heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939438Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013014938A1 (en) | 2011-07-26 | 2013-01-31 | 独立行政法人海上技術安全研究所 | Propeller with small duct, and ship |
-
1979
- 1979-08-20 JP JP11499979U patent/JPS5939438Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5632396U (en) | 1981-03-30 |
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