JPH0464698U - - Google Patents
Info
- Publication number
- JPH0464698U JPH0464698U JP10923390U JP10923390U JPH0464698U JP H0464698 U JPH0464698 U JP H0464698U JP 10923390 U JP10923390 U JP 10923390U JP 10923390 U JP10923390 U JP 10923390U JP H0464698 U JPH0464698 U JP H0464698U
- Authority
- JP
- Japan
- Prior art keywords
- limit switch
- safety door
- closed
- diagnostic
- detection limit
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図ないし第４図は本考案の一実施例を示す
もので、第１図と第２図は射出成形機の安全ドア
に対する検出用リミツトスイツチと診断用リミツ
トスイツチの配置例を示す正面図、第３図は型締
指令回路における検出用リミツトスイツチと電磁
リレーのｂ接点、及び型締用電磁弁の接続関係を
示す回路図、第４図は論理回路図である。第５図
は射出成形機における安全ドアと金型等の関係を
示す平面略図、第６図は従来の型締指令回路図で
ある。
３，４……安全ドア、６，７，８……検出用リ
ミツトスイツチ、２１，２２……診断用リミツト
スイツチ、２３，２４，２５……論理回路（診断
手段）、２８，３２，３６……電磁リレー、２８
ｂ，３２ｂ，３６ｂ……ｂ接点（リレー接点）。
1 to 4 show an embodiment of the present invention, and FIGS. 1 and 2 are front views showing an example of the arrangement of a detection limit switch and a diagnostic limit switch with respect to a safety door of an injection molding machine, and FIGS. FIG. 3 is a circuit diagram showing the connection relationship between the detection limit switch, the b contact of the electromagnetic relay, and the mold clamping solenoid valve in the mold clamping command circuit, and FIG. 4 is a logic circuit diagram. FIG. 5 is a schematic plan view showing the relationship between a safety door and a mold in an injection molding machine, and FIG. 6 is a conventional mold clamping command circuit diagram. 3, 4... Safety door, 6, 7, 8... Limit switch for detection, 21, 22... Limit switch for diagnosis, 23, 24, 25... Logic circuit (diagnosis means), 28, 32, 36... Electromagnetic relay, 28
b, 32b, 36b...b contact (relay contact).
Claims (1)
全ドアが閉となるオンとなり、安全ドアが開とな
るとオフとなつて安全ドアの開閉を検出する検出
用リミツトスイツチが付設された射出成形機等の
安全装置において、上記検出用リミツトスイツチ
とは別に、上記安全ドアの開閉によつてオン、オ
フする診断用リミツトスイツチを付設し、上記検
出用リミツトスイツチと診断用リミツトスイツチ
に、安全ドアの開閉に関して、検出用リミツトス
イツチと診断用リミツトスイツチのうちの一方が
安全ドアの開状態を、また他方が閉状態を示した
場合に電磁リレーを作動させる診断手段が付設さ
れるとともに、上記検出用リミツトスイツチに、
上記電磁リレーの作動によつてオフとなるリレー
接点が直列に接続されたことを特徴とする射出成
形機等の安全装置。 Injection molding machines, etc. that are equipped with a detection limit switch that turns on when the safety door is closed and turns off when the safety door is opened to detect the opening and closing of the safety door. In addition to the detection limit switch, a diagnostic limit switch that is turned on and off when the safety door is opened and closed is attached to the safety device, and the detection limit switch and the diagnostic limit switch have a detection limit switch that is turned on and off when the safety door is opened and closed. Diagnostic means is provided for activating an electromagnetic relay when one of the limit switch and the diagnostic limit switch indicates that the safety door is open and the other indicates that the safety door is closed.
A safety device for an injection molding machine, etc., characterized in that relay contacts that are turned off by the operation of the electromagnetic relay are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990109233U JP2538509Y2 (en) | 1990-10-18 | 1990-10-18 | Safety devices such as injection molding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990109233U JP2538509Y2 (en) | 1990-10-18 | 1990-10-18 | Safety devices such as injection molding machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0464698U true JPH0464698U (en) | 1992-06-03 |
| JP2538509Y2 JP2538509Y2 (en) | 1997-06-18 |
Family
ID=31856400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990109233U Expired - Lifetime JP2538509Y2 (en) | 1990-10-18 | 1990-10-18 | Safety devices such as injection molding machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538509Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431495A (en) * | 2021-06-02 | 2022-12-06 | 广东义发实业股份有限公司 | Novel inflation film manufacturing machine is rotatory device |
| CN117921971A (en) * | 2024-01-10 | 2024-04-26 | 南通海之星生物科技有限公司 | Safety protection mechanism and injection molding machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5853516U (en) * | 1981-10-06 | 1983-04-12 | 川崎重工業株式会社 | lawn mower |
-
1990
- 1990-10-18 JP JP1990109233U patent/JP2538509Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5853516U (en) * | 1981-10-06 | 1983-04-12 | 川崎重工業株式会社 | lawn mower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431495A (en) * | 2021-06-02 | 2022-12-06 | 广东义发实业股份有限公司 | Novel inflation film manufacturing machine is rotatory device |
| CN117921971A (en) * | 2024-01-10 | 2024-04-26 | 南通海之星生物科技有限公司 | Safety protection mechanism and injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2538509Y2 (en) | 1997-06-18 |
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