JPS57153706A - Control of scraping machine for precipitated sand - Google Patents
Control of scraping machine for precipitated sandInfo
- Publication number
- JPS57153706A JPS57153706A JP3665481A JP3665481A JPS57153706A JP S57153706 A JPS57153706 A JP S57153706A JP 3665481 A JP3665481 A JP 3665481A JP 3665481 A JP3665481 A JP 3665481A JP S57153706 A JPS57153706 A JP S57153706A
- Authority
- JP
- Japan
- Prior art keywords
- scraping machine
- load current
- sand
- control
- precipitated
- 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
PURPOSE: To control the precipitated sand scraping machine so as to eliminate idle operation thereof by expecting the precipitated sand amount in a sand precipitation basin from a load current of the scraping machine and a stop time before operation to operate and stop the scraping machine.
CONSTITUTION: The load current of the scraping machine 2 is detected by a converter 1 and the output thereof is applied to an operation treatment apparatus 4 through a current transducer 3. In this apparatus, from the detected value Ih of the load current after the scraping machine 2 is operated, a preceeding operations suspension time Ta, a preliminarily set optimum load current value In and an engagement part K, the next suspension time Tb is operated according to an operation formula Tb=(Ta/Ih)×In×K and the output signal thereof is sent to a control circuit 6 and the control circuit 6 carries out opening and closing of a contact 7 for operating and stopping the scraping machine 2. By this method, optimum operation control of the scraping machine can be efficiently carried out corresponding to the precipitation condition of a sand precipitation condition.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3665481A JPS57153706A (en) | 1981-03-16 | 1981-03-16 | Control of scraping machine for precipitated sand |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3665481A JPS57153706A (en) | 1981-03-16 | 1981-03-16 | Control of scraping machine for precipitated sand |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57153706A true JPS57153706A (en) | 1982-09-22 |
Family
ID=12475837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3665481A Pending JPS57153706A (en) | 1981-03-16 | 1981-03-16 | Control of scraping machine for precipitated sand |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57153706A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100490854B1 (en) * | 2002-03-29 | 2005-05-24 | 주식회사 듀라 | System for controlling work of sludge collecting machine |
-
1981
- 1981-03-16 JP JP3665481A patent/JPS57153706A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100490854B1 (en) * | 2002-03-29 | 2005-05-24 | 주식회사 듀라 | System for controlling work of sludge collecting machine |
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