JPS61175417U - - Google Patents
Info
- Publication number
- JPS61175417U JPS61175417U JP4945585U JP4945585U JPS61175417U JP S61175417 U JPS61175417 U JP S61175417U JP 4945585 U JP4945585 U JP 4945585U JP 4945585 U JP4945585 U JP 4945585U JP S61175417 U JPS61175417 U JP S61175417U
- Authority
- JP
- Japan
- Prior art keywords
- resin sheet
- heater
- sagging
- light beam
- shutter device
- 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
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 238000007665 sagging Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
第１〜３図は本考案の第１実施例を示し、第１
図は樹脂シート成形機の側面図、第２図は同要部
の切断正面図、第３図は下面ヒータ５の下方退避
とシヤツター１６の移動とを示した切断正面図、
第４図は本考案の第２実施例を示した側面図、第
５図は従来例を示した切断正面図である。
Ｃ→樹脂シート、４→上面ヒータ、５→下面ヒ
ータ、７→光電装置、１０→光線ビーム、１５，
３６→無端チエン、１６，３７→シヤツター。
1 to 3 show a first embodiment of the present invention.
The figure is a side view of the resin sheet molding machine, FIG. 2 is a cutaway front view of the same essential parts, and FIG. 3 is a cutaway front view showing the downward retraction of the lower heater 5 and the movement of the shutter 16.
FIG. 4 is a side view showing a second embodiment of the present invention, and FIG. 5 is a cutaway front view showing a conventional example. C→resin sheet, 4→top heater, 5→bottom heater, 7→photoelectric device, 10→light beam, 15,
36 → endless chain, 16, 37 → shutter.
Claims (1)
れ下がりを光線ビームにより検出する光電管を設
け、その光線ビームの上部で前記両ヒータの間に
樹脂シートを送り込む装置において、光線ビーム
の下側に駆動により下面ヒータとの間を遮ぎるシ
ヤツター装置を設け、樹脂シートの垂れ下がり検
出信号によりシヤツター装置を駆動して樹脂シー
トの下面ヒータへの接触を防止することを特徴と
する樹脂シート加熱装置の過剰垂れ下がり防止装
置。 In this device, a phototube is provided between the top heater and the bottom heater to detect the sagging of the resin sheet using a light beam, and the resin sheet is fed between the two heaters at the top of the light beam. An excessive sagging prevention device for a resin sheet heating device, characterized in that a shutter device is provided to block the gap between the resin sheet and the heater, and the shutter device is driven by a resin sheet sagging detection signal to prevent the resin sheet from coming into contact with the lower heater. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4945585U JPS61175417U (en) | 1985-04-03 | 1985-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4945585U JPS61175417U (en) | 1985-04-03 | 1985-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61175417U true JPS61175417U (en) | 1986-11-01 |
Family
ID=30566672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4945585U Pending JPS61175417U (en) | 1985-04-03 | 1985-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61175417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03158224A (en) * | 1989-11-16 | 1991-07-08 | Sumitomo Heavy Ind Ltd | Heating device for thermoformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414719A (en) * | 1977-07-05 | 1979-02-03 | Mitsubishi Electric Corp | Signal reproducer |
| JPS5917911B2 (en) * | 1980-10-20 | 1984-04-24 | 大野電子開発株式会社 | Selective call signal detection circuit |
| JPS625301B2 (en) * | 1977-12-20 | 1987-02-04 | Ansuchi* Furanse Deyu Petorooru |
-
1985
- 1985-04-03 JP JP4945585U patent/JPS61175417U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414719A (en) * | 1977-07-05 | 1979-02-03 | Mitsubishi Electric Corp | Signal reproducer |
| JPS625301B2 (en) * | 1977-12-20 | 1987-02-04 | Ansuchi* Furanse Deyu Petorooru | |
| JPS5917911B2 (en) * | 1980-10-20 | 1984-04-24 | 大野電子開発株式会社 | Selective call signal detection circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03158224A (en) * | 1989-11-16 | 1991-07-08 | Sumitomo Heavy Ind Ltd | Heating device for thermoformer |
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