CN202111677U - Control circuit for molten iron casting time - Google Patents
Control circuit for molten iron casting time Download PDFInfo
- Publication number
- CN202111677U CN202111677U CN2011201770994U CN201120177099U CN202111677U CN 202111677 U CN202111677 U CN 202111677U CN 2011201770994 U CN2011201770994 U CN 2011201770994U CN 201120177099 U CN201120177099 U CN 201120177099U CN 202111677 U CN202111677 U CN 202111677U
- Authority
- CN
- China
- Prior art keywords
- time
- relay
- molten iron
- delay
- switch
- 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 - Fee Related
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Abstract
The utility model provides a control circuit for molten iron casting time, which is capable of controlling molten iron casting time so as to control molten iron casting temperature. The control circuit for molten iron casting time comprises a power switch, a reset switch, a trigger switch, a middle relay, a time relay, a work indicating lamp, a time delay relay and an alarm. The power switch, the reset switch, the trigger switch and the middle relay are successively in series connection; the time relay is in a parallel connection with the middle relay; the work indicating lamp, a time-delay breaking contact of the time relay and the time relay are in a parallel connection; the time delay relay, a time-delay turn-on contact of the time relay and the time relay are in a parallel connection; and the alarm is in a parallel connection with the time delay relay. The reset switch is triggered for resetting using walking of a cast cucurbit; a controller is triggered for stating work through the trigger switch; and the controller sends out an acousto-optic alarm and warns that a casting worker should stop casting and remelt the molten iron, when the molten iron casting temperature decreases to a temperature falling short of the process requirement.
Description
Technical field
The utility model relates to a kind of time control circuit, especially a kind of molten iron pouring time control circuit.
Background technology
The height of molten steel pouring temperature directly influences casting product quality, and the control molten steel pouring temperature just provides certain guarantee for the control casting quality.Because molten steel pouring temperature can not control for a long time, often the pourer rule of thumb judges molten iron temperature, and error ratio is bigger, and cast product can not guarantee,
The utility model content
The purpose of the utility model provides a kind ofly can control the molten iron pouring time, thus the molten iron pouring time control circuit of control molten steel pouring temperature.
Realize the molten iron pouring time control circuit of the utility model purpose, comprise mains switch, reset switch, trigger switch, auxiliary relay, the time relay, relay indicating light, time-delay relay and alarm; Said mains switch, reset switch, trigger switch and auxiliary relay are connected successively; The said time relay is parallelly connected with said auxiliary relay; The time-delay break contact of the said relay indicating light and the said time relay is parallelly connected with the said time relay; The time-delay make contact of the said time-delay relay and the said time relay is parallelly connected with the said time relay, and said alarm is parallelly connected with said time-delay relay.
The said mains switch fuse of also connecting carries out short-circuit protection.
Also be parallel with power supply indicator on said trigger switch and the auxiliary relay, be used for the power supply indication.
Also be parallel with electric bell on the said time-delay relay, be used for audible alarm.
The molten iron pouring time control circuit of the utility model is when the melting molten iron pouring ladle of packing into, through skimming processing; Before preparing cast; Utilize the walking of cast cucurbit to trigger reset switch earlier and reset, trigger controller through trigger switch again and start working, and have the photoelectricity indicating controller to start working.When molten steel pouring temperature decline does not reach the temperature of technological requirement; Controller sends sound and light alarm, reminds the pourer to stop pouring practice, melts down molten iron; When cucurbit returns walking, controller is carried out reset trigger; With should molten steel pouring temperature pouring practice in the technological requirement scope finishing, when cucurbit returns walking controller is carried out reset trigger, no longer send sound and light alarm.
Description of drawings
Fig. 1 is the sketch map of the utility model molten iron pouring time control circuit.
Embodiment
As shown in Figure 1, the molten iron pouring time control circuit of the utility model comprises mains switch SK, reset switch K
1, trigger switch K
2, auxiliary relay C, time relay T
1, relay indicating light G, time-delay relay T
2With alarm B; Said mains switch SK, reset switch K
1, trigger switch K
2C connects successively with auxiliary relay, said time relay T
1Parallelly connected with said auxiliary relay C, said relay indicating light G and said time relay T
1Time-delay break contact T
11With said time relay T
1Parallel connection, said time-delay relay T
2With said time relay T
1Time-delay make contact T
12With said time relay T
1Parallel connection, said alarm B and said time-delay relay T
2Parallel connection.The said mains switch SK fuse F U that also connects carries out short-circuit protection.Said trigger switch K
2With also be parallel with power supply indicator D on the auxiliary relay C, be used for power supply indication.Said time-delay relay T
2On also be parallel with electric bell E, be used for audible alarm.
Power supply provides power supply and short-circuit protection through switch S K and fuse F U for this circuit.Energized owing to do not trigger, so circuit is not worked, only has power supply indicator D bright, and the indication power supply is normal, and circuit is in initial condition.The walking of cast cucurbit triggers reset switch K during work
1The moment disconnection resets, and triggers trigger switch K again
2Moment connects, and makes auxiliary relay C energising adhesive and utilizes self normally opened contact C
1Self-locking, time relay T
1Must establish the beginning timing by cable, time relay T
1Time-delay break contact T
11Be relay indicating light G power supply, indicating device is worked, time relay T
1Time-delay make contact T
12Break off, do not send sound and light alarm.When reaching setting control time, time relay T
1Time-delay break contact T
11Break off, relay indicating light G extinguishes, time relay T
1Time-delay make contact T
12Connect, alarm B sends sound and light alarm, time-delay relay T
2Must establish beginning warning timing by cable, reach and set time of fire alarming time-delay relay T
2Prolong break contact T
21Break off, warning stops, and makes circuit return to initial condition.When pouring practice stops and pouring practice is worked in setting-up time and finished, the cast cucurbit all triggers reset switch K when returning walking
1The moment disconnection makes circuit get back to initial condition.
Embodiment recited above describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Design under the spiritual prerequisite not breaking away from the utility model; Various distortion and improvement that the common engineers and technicians in this area make the utility model technical scheme all should fall in the protection range that claims of the utility model confirm.
Claims (4)
1. a molten iron pouring time control circuit is characterized in that: comprise mains switch, reset switch, trigger switch, auxiliary relay, the time relay, relay indicating light, time-delay relay and alarm; Said mains switch, reset switch, trigger switch and auxiliary relay are connected successively; The said time relay is parallelly connected with said auxiliary relay; The time-delay break contact of the said relay indicating light and the said time relay is parallelly connected with the said time relay; The time-delay make contact of the said time-delay relay and the said time relay is parallelly connected with the said time relay, and said alarm is parallelly connected with said time-delay relay.
2. molten iron pouring time control circuit according to claim 1 is characterized in that: the said mains switch fuse of also connecting.
3. molten iron pouring time control circuit according to claim 1 is characterized in that: also be parallel with power supply indicator on said trigger switch and the auxiliary relay.
4. according to the arbitrary described molten iron pouring time control circuit of claim 1～3, it is characterized in that: also be parallel with electric bell on the said time-delay relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201770994U CN202111677U (en) | 2011-05-30 | 2011-05-30 | Control circuit for molten iron casting time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201770994U CN202111677U (en) | 2011-05-30 | 2011-05-30 | Control circuit for molten iron casting time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111677U true CN202111677U (en) | 2012-01-11 |
Family
ID=45437126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201770994U Expired - Fee Related CN202111677U (en) | 2011-05-30 | 2011-05-30 | Control circuit for molten iron casting time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278142A (en) * | 2013-07-01 | 2015-01-14 | 南车戚墅堰机车车辆工艺研究所有限公司 | Nitrogen control device of tempering furnace |
| CN105678975A (en) * | 2016-03-11 | 2016-06-15 | 河北盛跃铁路电气化器材有限公司 | Thermal treatment process timed prompting and alarming device |
-
2011
- 2011-05-30 CN CN2011201770994U patent/CN202111677U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278142A (en) * | 2013-07-01 | 2015-01-14 | 南车戚墅堰机车车辆工艺研究所有限公司 | Nitrogen control device of tempering furnace |
| CN104278142B (en) * | 2013-07-01 | 2016-12-28 | 中车戚墅堰机车车辆工艺研究所有限公司 | Tempering furnace Nitrogen Control Units |
| CN105678975A (en) * | 2016-03-11 | 2016-06-15 | 河北盛跃铁路电气化器材有限公司 | Thermal treatment process timed prompting and alarming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20130530 |