JPS63157082U - - Google Patents
Info
- Publication number
- JPS63157082U JPS63157082U JP4920587U JP4920587U JPS63157082U JP S63157082 U JPS63157082 U JP S63157082U JP 4920587 U JP4920587 U JP 4920587U JP 4920587 U JP4920587 U JP 4920587U JP S63157082 U JPS63157082 U JP S63157082U
- Authority
- JP
- Japan
- Prior art keywords
- excitation
- electromagnets
- current detection
- detection means
- switching element
- 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
- 230000005284 excitation Effects 0.000 claims 5
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Description
第1〜3図は本考案の一実施例としての板材吊
り上げ用電磁石装置を示すもので、第1図はその
制御系を示す電気回路図、第2図はその制御ブロ
ツク図、第3図はその制御要領を説明するための
フローチヤートであり、第4〜6図は従来の板材
吊り上げ用電磁石装置を示すもので、第4図はそ
のリフテイングマグネツトの配置例を示す模式図
、第5図はその制御系を示す電気回路図、第6図
はその制御要領を説明するためのフローチヤート
である。
図において、1……吊りビーム、2……リフテ
イングマグネツト(電磁石)、3……SCR(ス
イツチング素子)、8……電流検出器、20……
リフテイングマグネツト本体、50……制御手段
、比較手段、変更手段を構成するコントローラ、
60……点弧装置。なお、図中、同一符号は同一
、又は相当部分を示す。
Figures 1 to 3 show an electromagnetic device for lifting plate materials as an embodiment of the present invention. Figure 1 is an electric circuit diagram showing its control system, Figure 2 is its control block diagram, and Figure 3 is an electrical circuit diagram showing its control system. This is a flowchart for explaining the control procedure, and Figs. 4 to 6 show a conventional electromagnet device for lifting plate materials, Fig. 4 is a schematic diagram showing an example of the arrangement of the lifting magnet, and Fig. 5 The figure is an electric circuit diagram showing the control system, and FIG. 6 is a flowchart for explaining the control procedure. In the figure, 1... hanging beam, 2... lifting magnet (electromagnet), 3... SCR (switching element), 8... current detector, 20...
Lifting magnet main body, 50... controller constituting control means, comparison means, and changing means;
60...Ignition device. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
上記の各電磁石のための励磁回路に接続されたス
イツチング素子と、上記の各スイツチング素子へ
励磁用指令信号を出力する制御手段とをそなえ、
上記の各電磁石に流れる励磁電流を検出する電流
検出手段が設けられるとともに、同電流検出手段
によつて検出された実励磁電流値と指令値とを比
較する比較手段と、同比較手段での比較結果に基
づいて上記スイツチング素子への指令信号を変更
しうる変更手段とが設けられたことを特徴とする
、板材吊り上げ用電磁石装置。 A plurality of electromagnets arranged along a hanging beam,
It comprises a switching element connected to an excitation circuit for each of the above electromagnets, and a control means for outputting an excitation command signal to each of the above switching elements,
A current detection means for detecting the excitation current flowing through each of the electromagnets described above is provided, as well as a comparison means for comparing the actual excitation current value detected by the current detection means with a command value, and a comparison means for comparing the actual excitation current value detected by the current detection means with a command value. An electromagnetic device for lifting a plate material, characterized in that it is provided with a changing means that can change the command signal to the switching element based on the result.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4920587U JPS63157082U (en) | 1987-03-31 | 1987-03-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4920587U JPS63157082U (en) | 1987-03-31 | 1987-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63157082U true JPS63157082U (en) | 1988-10-14 |
Family
ID=30871441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4920587U Pending JPS63157082U (en) | 1987-03-31 | 1987-03-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63157082U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5249462A (en) * | 1975-10-17 | 1977-04-20 | Nishishiba Denki Kk | Device for confirming number of articles lifted by lifting electromagnet |
JPS5950595A (en) * | 1982-09-17 | 1984-03-23 | 株式会社日立製作所 | Electronic part mounting structure and mounting method |
-
1987
- 1987-03-31 JP JP4920587U patent/JPS63157082U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5249462A (en) * | 1975-10-17 | 1977-04-20 | Nishishiba Denki Kk | Device for confirming number of articles lifted by lifting electromagnet |
JPS5950595A (en) * | 1982-09-17 | 1984-03-23 | 株式会社日立製作所 | Electronic part mounting structure and mounting method |
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