CN102441666A - Method and system for controlling emergency rise of casting runner - Google Patents
Method and system for controlling emergency rise of casting runner Download PDFInfo
- Publication number
- CN102441666A CN102441666A CN2011104095628A CN201110409562A CN102441666A CN 102441666 A CN102441666 A CN 102441666A CN 2011104095628 A CN2011104095628 A CN 2011104095628A CN 201110409562 A CN201110409562 A CN 201110409562A CN 102441666 A CN102441666 A CN 102441666A
- Authority
- CN
- China
- Prior art keywords
- chute
- rising threshold
- rise
- urgent
- runner
- 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
Images
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a method and a system for controlling emergency rise of a casting runner. After casting, the method is used for detecting movement of the runner, when the runner cannot move as a middle limit is jammed, an operating power source of a casting machine is turned off, and a first signal is transmitted to an emergency rise valve so that the runner rises. After preset time is delayed, a hot end of the runner is controlled to stop rising while a cold end of the runner continues rising to the highest limit, and at the moment, the hot end of the runner rises to the middle position while the cold end of the runner is positioned at the highest limit. Therefore, when the runner cannot move due to jamming of the middle limit or other reasons, by the aid of the method, the hot end of the runner can rise to be disconnected with a fore runner, the cold end of the runner is higher than the hot end of the runner, residual aluminum water in the runner flows out, and the problem that equipment and tools are burnt out as the aluminum water cannot be released and then overswells and leaks can be avoided.
Description
Technical field
The application relates to casting technology field, particularly relates to a kind of casting chute promptly rise control method and system.
Background technology
Casting machine is one of visual plant of accomplishing the ingot casting moulding; Whole casting process all carries out under full automatic situation; When the casting length that reaches setting or when occur ending the fault of casting, casting machine will be sold the signal that stove melts down automatically, then when aluminium discharge is not enough to keep required liquid level in the chute; To cast that chute rises and tilt, with the putting in the dried case of releasing of remaining aluminium water in the chute to casting chute and front end chute centre to the hot junction.
Be in ground, the hot junction lower cover because the centre in chute hot junction is spacing; So having aluminium water or aluminium slag sometimes falls in the cover plate and blocks spacing; If this moment operating personnel and attendant in time do not find and handle, when next time, the casting completion needed up-flow slot, chute can not normally rise so; And then cause aluminium water not release out, finally may cause aluminium water to emit groove to spill and scorch equipment and instrument.
Summary of the invention
In view of this, the application embodiment provides a kind of casting chute promptly rise control method and system, accomplishes the back and causes owing to chute does not rise that aluminium water emits groove to spill in the chute to solve casting process, and then scorch the problem of casting tool and equipment.
To achieve these goals, the technical scheme that provides of the application embodiment is following:
A kind of casting chute control method that promptly rises comprises:
After casting is accomplished, detect chute and whether move;
When detecting chute and do not move, generate washout the working power of casting machine is broken off;
Generate first control signal and send to urgent rising threshold, make said urgent rising threshold control said chute and rise;
When said chute rises, pick up counting, and judge whether said timing time equals the Preset Time value;
When said timing time equals the Preset Time value, generate second control signal and send to stop valve, said stop valve is controlled the hot junction stop motion of said chute;
And when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise.
Preferably, said Preset Time value is 8 seconds.
Whether preferably, whether said detection chute moves, and is specially: said chute is provided with displacement transducer, utilize displacement transducer to detect said chute and move.
Preferably, and when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise, and is specially:
The highest spacing place at said chute cold junction is provided with limit switch, after said limit switch is by the touching of the cold junction of said chute, generates stop signal and sends to said urgent rising threshold, makes said urgent rising threshold control said chute and stops to rise.
Preferably, and when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise, and is specially:
Hydraulic oil in the hydraulic oil pump of said chute rising threshold is set to predetermined amount, and the hydraulic oil of said predetermined amount can make said chute rising threshold control said chute to rise to the highest spacing.
A kind of casting chute control system that promptly rises; Be applied to comprise: on the casting machine of chute, chute hydraulic circuit, urgent rising threshold, emergency stop push button and stop valve; Said system comprises: chute detecting unit, control module, timing unit and judging unit, wherein:
Whether said chute detecting unit is connected with said chute, is used for after casting is accomplished, detect chute and move;
Said control module is connected with said chute detecting unit, urgent rising threshold and emergency stop push button respectively; Be used for when detecting chute and do not move; Generating washout breaks off the working power of casting machine; And generate first control signal and send to urgent rising threshold, make said urgent rising threshold control said chute and rise;
Said timing unit is used for when said chute rises, picking up counting;
Said judging unit is used to judge whether the timing time of said timing unit equals the Preset Time value;
Said control module is connected with stop valve, is used for when said timing time equals the Preset Time value, generates second control signal and sends to stop valve;
Said stop valve is arranged on the hot junction of chute, is used to control the hot junction stop motion of said chute;
And when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise.
Preferably, said Preset Time value is 8 seconds.
Preferably, said chute detecting unit is a displacement transducer, and said displacement transducer is fixed on the said chute.
Preferably, this system further comprises: limit switch, said limit switch are arranged on the highest spacing place that said chute cold junction rises, and are connected with said urgent rising threshold;
After said limit switch was by the touching of the cold junction of said chute, said limit switch generated stop signal and sends to said urgent rising threshold, made said urgent rising threshold control said chute and stopped to rise.
Preferably, be provided with the hydraulic oil of predetermined amount in the hydraulic oil pump of said urgent rising threshold, it is the highest spacing that the hydraulic oil of said predetermined amount can make said chute rise to.
Visible by above technical scheme, this casting chute that the application embodiment provides control method that promptly rises is after the casting completion; Motion to chute detects, like this when occurring being stuck or other reason when causing situation that chute do not move owing to the centre is spacing, with casting machine working power break off; Make chute spacing constraint in the middle of no longer receiving, and send first signal, make to rise on the chute hot junction to urgent rising threshold; And after postponing Preset Time; Stop the rising in chute hot junction, this moment, the chute hot junction rose to the centre position, and then sent second control signal to urgent rising threshold; Make the cold junction of chute rise, and the cold junction of chute rise to the highest spacing always.
Therefore be stuck owing to the centre is spacing or other reason when causing situation that chute do not move when appearance; Can be through this method so that rise on the chute hot junction to throw off and being connected of prime chute; Make the height of chute cold junction greater than the height in hot junction simultaneously; Make that remaining aluminium water flows out in the chute, and then can avoid to release out and causing aluminium water to emit groove to spill the problem of the equipment of scorching and instrument owing to aluminium water.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing among the application, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Promptly the rise schematic flow sheet of control method of the casting chute that Fig. 1 provides for the application embodiment;
A kind of partial structurtes sketch map of the casting machine that Fig. 2 provides for the application embodiment;
The another kind of partial structurtes sketch map of the casting machine that Fig. 3 provides for the application embodiment.
The specific embodiment
In order to make those skilled in the art person understand the technical scheme among the application better; To combine the accompanying drawing among the application embodiment below; Technical scheme among the application embodiment is carried out clear, intactly description; Obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
Promptly the rise schematic flow sheet of control method of the casting chute that Fig. 1 provides for the application embodiment.
As shown in Figure 1, this method may further comprise the steps:
S100: after casting is accomplished, detect chute and whether move.
In normal casting process; After casting is accomplished, will cast the chute rising usually and, make remaining aluminium water outflow in the chute to the hot junction inclination; But be in ground, the hot junction lower cover because the centre in chute hot junction is spacing, possibly have aluminium water or aluminium slag and fall in the cover plate and block spacing.Therefore after casting is accomplished, need at first detect chute and whether move,,, so just need handle according to the application's subsequent step if chute does not move if the chute motion is so just operated according to normal flow process.
When whether the detection chute moves, can be employed in the chute next door limit switch is set, also can be provided with displacement transducer by chute.Because the reasons in structure of chute may occur slightly rocking after casting is accomplished, if adopt this moment the fiber switch just the erroneous judgement problem possibly occur, promptly chute touches the fiber switch and not motion.So in the application embodiment, preferably adopt displacement transducer to detect the motion conditions of chute.
S200: when chute does not move, generate washout the casting machine power supply is broken off.
In a last step, when detecting chute and do not move, spacing possibly being blocked by aluminium water or aluminium slag on the chute is described, need break off the working power of casting machine this moment, to avoid the unexpected misoperation of chute.Here the working power of casting machine is to point to the power supply that each working position of casting machine provides 230V voltage; In addition; On casting machine, also have some to be used for 24V dc source to part control position power supply; When the 230V working power of casting machine was broken off, these 24V dc sources still continued power supply, for after outage, controlling the part of casting machine.
S300: generate first control signal and send to urgent rising threshold, urgent rising threshold control chute is risen.
When generating washout, need the control chute to rise, chute can not normally rise if this is, will cause aluminium water not release out, finally may cause aluminium water to emit groove to spill and scorch equipment and instrument.
In the application embodiment, when chute did not move, the control chute rose through urgent rising threshold, and chute will not receive middle spacing control this moment, so can avoid owing to the middle spacing problem that is stuck and occurs.
S400: when chute rises, pick up counting, and judge whether timing time equals the Preset Time value.
Because spacing control in the middle of not having, so can't clearly know the height after chute rises.In the application embodiment, the height that chute rises is controlled through the time that chute rises, when chute begins to rise, carry out timing, and timing time and Preset Time value are compared.
In time, chute can rise to middle spacing position at this preset value, so when timing time reaches the Preset Time value, just can control the chute hot junction and stop to rise, and chute also can continue to rise this moment, promptly the cold junction of chute also can continue to rise.In practical application, according to field trial repeatedly, spacing position in the middle of the Preset Time value is 8 seconds, just can the hot junction of chute be risen to is so in the application embodiment, the Preset Time value is chosen as 8 seconds.
S500: when timing time equals the Preset Time value, generate second control signal and send to stop valve, said stop valve is controlled the hot junction stop motion of said chute.
When timing time reached the Preset Time value, this moment, chute rose to middle spacing position, and promptly the height in the hot junction of chute can have been satisfied the demand, so need the hot junction of chute be stopped to rise.
S600: when the cold junction of said chute rising to the highest spacing after, urgent rising threshold is controlled said chute and is stopped to rise.
In above-mentioned steps; The hot junction with chute is elevated to certain height; For being flowed out by the hot junction of chute, remaining aluminium water in the chute flows out, so after liter on the chute hot junction puts in place, also need the cold junction of chute also be raise; So just can be so that the height of chute cold junction greater than the height in chute hot junction, makes aluminium water flowed out by the hot junction smoothly.
Whether rise to the highlyest when spacing at the cold junction of judging chute, the extreme higher position that can be employed in the chute cold junction is provided with limit switch, when the cold junction of chute touches limit switch, judges that promptly the cold junction of chute has risen to the highest spacing.In addition; Can also control the lifting height of urgent rising threshold through the amount of the hydraulic oil in the hydraulic oil pump of controlling urgent rising threshold; For example: inject the hydraulic oil of predetermined amount at the hydraulic oil pump of urgent rising threshold, and the hydraulic oil of this predetermined amount can only to make that urgent rising threshold drives the chute value of being raised to the highest spacing, it is the highest spacing to need not like this to judge whether chute rises to; Only need to send first control signal to urgent rising threshold, urgent rising threshold just can only be controlled chute and rise to the highest spacing.
When the cold junction of chute rises to the highlyest when spacing, the chute hot junction that rises to the centre position is compared, and the height of chute cold junction is greater than the height in chute hot junction, thereby can be so that remaining aluminium water flows out in the chute.
This casting chute that the application embodiment provides control method that promptly rises after casting is accomplished, detects the motion of chute; When occurring being stuck or other reason when causing situation that chute do not move, the working power of casting machine is broken off like this owing to the centre is spacing, make chute no longer receive in the middle of spacing constraint; And send first signal to urgent rising threshold, make chute rise, and after postponing Preset Time; Stop the rising in chute hot junction; This moment, the chute hot junction rose to the centre position, and when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped rising.
Therefore be stuck owing to the centre is spacing or other reason when causing situation that chute do not move when appearance; Through this method can so that the height of chute cold junction greater than the height in hot junction; Make that remaining aluminium water flows out in the chute, and then can avoid to release out and causing aluminium water to emit groove to spill the problem of the equipment of scorching and instrument owing to aluminium water.
On the basis of said method embodiment; The application also provides a kind of casting chute control system that promptly rises; This system applies is comprising: on the casting machine of chute, chute hydraulic circuit, urgent rising threshold, emergency stop push button and stop valve, said urgent rising threshold and stop valve are arranged in the said chute hydraulic circuit.
A kind of promptly rise structural representation of control system of chute of casting that Fig. 2 provides for the application embodiment.
As shown in Figure 2,5 is the urgent rising threshold of groove among the figure, and 6 is emergency stop push button, and 7 is stop valve, and this casting chute control system that promptly rises comprises: chute detecting unit 1, control module 2, timing unit 3 and judging unit 4.
Whether chute detecting unit 1 is connected with the chute (not shown), is used for after casting is accomplished, detect chute and move, and in the application embodiment, chute detecting unit 1 adopts displacement transducer, and displacement transducer is fixed on the chute.
In a last embodiment; Described; The working power of casting machine is to point to the power supply that each working position of casting machine provides 230V voltage; And when the 230V working power of casting machine was broken off, some were used for still working on to the 24V dc source of part control position power supply on casting machine, so that still can supply power to the parts such as stop valve 7 on the chute detecting unit 1 among the application embodiment, control module 2, timing unit 3, judging unit 4 and the casting machine after the outage.
Stop valve 7 is arranged on the cold junction of chute, is used to control the hot junction stop motion of chute;
When the cold junction of chute rising to the highest spacing after, the cold junction of urgent rising threshold 5 control chutes stops to rise.
This this casting chute that the application embodiment provides control system that promptly rises; When occurring being stuck or other reason when causing situation that chute do not move owing to the centre is spacing; Can be so that rise on the chute hot junction with under the situation of throwing off the front end chute; The height of chute cold junction is greater than the height in hot junction, makes that remaining aluminium water flows out in the chute, and then can avoid can not releasing out and causing aluminium water to emit groove to spill the problem of the equipment of scorching and instrument owing to aluminium water.
In the application embodiment; Can control the lifting height of urgent rising threshold through the amount of the hydraulic oil in the hydraulic oil pump of controlling urgent rising threshold 5; For example: the hydraulic oil that injects predetermined amount at the hydraulic oil pump of urgent rising threshold 5; And it is the highest spacing that the hydraulic oil of this predetermined amount can only make that urgent rising threshold 5 drives the chute value of being raised to; It is the highest spacing to need not like this to judge whether chute rises to, and only needs to send first control signal to urgent rising threshold 5, and urgent rising threshold 5 just can only be controlled chute and rise to the highest spacing.
In addition, in the application embodiment, for whether the cold junction of judging chute rises to the highest when spacing; As shown in Figure 3; This system can also comprise: limit switch 8, limit switch 8 is arranged on the highest position of chute cold junction, and is connected with urgent rising threshold 5.
When the cold junction of chute touched limit switch 8, the cold junction of promptly judging chute had risen to the highest spacing, generated stop signal and also sent to urgent rising threshold 5, made urgent rising threshold 5 control chutes stop to rise.
The above only is the application's a preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be conspicuous to one skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the application or scope in other embodiments among this paper.Therefore, the application will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. casting chute control method that promptly rises is characterized in that, comprising:
After casting is accomplished, detect chute and whether move;
When detecting chute and do not move, generate washout the working power of casting machine is broken off;
Generate first control signal and send to urgent rising threshold, make said urgent rising threshold control said chute and rise;
When said chute rises, pick up counting, and judge whether said timing time equals the Preset Time value;
When said timing time equals the Preset Time value, generate second control signal and send to stop valve, said stop valve is controlled the hot junction stop motion of said chute;
And when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise.
2. method according to claim 1 is characterized in that, said Preset Time value is 8 seconds.
3. whether method according to claim 1 is characterized in that, detect chute and move, and whether be specially: said chute is provided with displacement transducer, utilize displacement transducer to detect said chute and move.
4. method according to claim 1 is characterized in that, and when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise, and is specially:
The highest spacing place at said chute cold junction is provided with limit switch, after said limit switch is by the touching of the cold junction of said chute, generates stop signal and sends to said urgent rising threshold, makes said urgent rising threshold control said chute and stops to rise.
5. method according to claim 1 is characterized in that, and when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise, and is specially:
Hydraulic oil in the hydraulic oil pump of said chute rising threshold is set to predetermined amount, and the hydraulic oil of said predetermined amount can make said chute rising threshold control said chute to rise to the highest spacing.
6. casting chute control system that promptly rises; Be applied to comprise: on the casting machine of chute, chute hydraulic circuit, urgent rising threshold, emergency stop push button and stop valve; It is characterized in that; Said system comprises: chute detecting unit, control module, timing unit and judging unit, wherein:
Whether said chute detecting unit is connected with said chute, is used for after casting is accomplished, detect chute and move;
Said control module is connected with said chute detecting unit, urgent rising threshold and emergency stop push button respectively; Be used for when detecting chute and do not move; Generating washout breaks off the working power of casting machine; And generate first control signal and send to urgent rising threshold, make said urgent rising threshold control said chute and rise;
Said timing unit is used for when said chute rises, picking up counting;
Said judging unit is used to judge whether the timing time of said timing unit equals the Preset Time value;
Said control module is connected with stop valve, is used for when said timing time equals the Preset Time value, generates second control signal and sends to stop valve;
Said stop valve is arranged on the hot junction of chute, is used to control the hot junction stop motion of said chute;
And when the cold junction of said chute rising to the highest spacing after, said urgent rising threshold is controlled said chute and is stopped to rise.
7. system according to claim 6 is characterized in that, said Preset Time value is 8 seconds.
8. system according to claim 6 is characterized in that, said chute detecting unit is a displacement transducer, and said displacement transducer is fixed on the said chute.
9. system according to claim 6 is characterized in that, further comprises: limit switch, said limit switch are arranged on the highest spacing place that said chute cold junction rises, and are connected with said urgent rising threshold;
After said limit switch was by the touching of the cold junction of said chute, said limit switch generated stop signal and sends to said urgent rising threshold, made said urgent rising threshold control said chute and stopped to rise.
10. system according to claim 6 is characterized in that, is provided with the hydraulic oil of predetermined amount in the hydraulic oil pump of said urgent rising threshold, and it is the highest spacing that the hydraulic oil of said predetermined amount can make said chute rise to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110409562 CN102441666B (en) | 2011-12-09 | 2011-12-09 | Method and system for controlling emergency rise of casting runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110409562 CN102441666B (en) | 2011-12-09 | 2011-12-09 | Method and system for controlling emergency rise of casting runner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102441666A true CN102441666A (en) | 2012-05-09 |
| CN102441666B CN102441666B (en) | 2013-07-10 |
Family
ID=46004877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110409562 Active CN102441666B (en) | 2011-12-09 | 2011-12-09 | Method and system for controlling emergency rise of casting runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102441666B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2314197A1 (en) * | 2000-07-05 | 2002-01-05 | Lewis Australia Pty Ltd. | Improvements relating to the pouring of metals |
| CN2754036Y (en) * | 2004-09-15 | 2006-01-25 | 中色科技股份有限公司 | Large tonnage tilting furnacne laser liquid level control device |
| CN101704080A (en) * | 2009-11-24 | 2010-05-12 | 苏州有色金属研究院有限公司 | Device for automatically controlling semicontinuous casting liquid level of aluminum and aluminum alloy |
| CN201632612U (en) * | 2009-11-24 | 2010-11-17 | 苏州有色金属研究院有限公司 | Automatic liquid level control device for semi-continuous aluminum and aluminum alloy casting |
| CN202062058U (en) * | 2011-05-26 | 2011-12-07 | 王飞 | Monitoring protection device for overturning heat preserving furnace aluminum liquid level control |
-
2011
- 2011-12-09 CN CN 201110409562 patent/CN102441666B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2314197A1 (en) * | 2000-07-05 | 2002-01-05 | Lewis Australia Pty Ltd. | Improvements relating to the pouring of metals |
| CN2754036Y (en) * | 2004-09-15 | 2006-01-25 | 中色科技股份有限公司 | Large tonnage tilting furnacne laser liquid level control device |
| CN101704080A (en) * | 2009-11-24 | 2010-05-12 | 苏州有色金属研究院有限公司 | Device for automatically controlling semicontinuous casting liquid level of aluminum and aluminum alloy |
| CN201632612U (en) * | 2009-11-24 | 2010-11-17 | 苏州有色金属研究院有限公司 | Automatic liquid level control device for semi-continuous aluminum and aluminum alloy casting |
| CN202062058U (en) * | 2011-05-26 | 2011-12-07 | 王飞 | Monitoring protection device for overturning heat preserving furnace aluminum liquid level control |
Non-Patent Citations (1)
| Title |
|---|
| 陈莹: "铝带坯铸轧机流槽液面自动控制装置的设计", 《有色金属加工》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102441666B (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0534743B1 (en) | Automatic liquid soap supply apparatus | |
| EP2464041A1 (en) | Detection device and method thereof | |
| CN102441666B (en) | Method and system for controlling emergency rise of casting runner | |
| CN211455089U (en) | Automatic real teaching equipment of instructing of control | |
| CN104514249A (en) | Flush toilet | |
| CN101775774B (en) | Device for adaptive control of ground clearance of front discharge door of pavement milling machine | |
| CN102083279B (en) | Board incoming control method and device for horizontal line and horizontal line | |
| CN105545347B (en) | The explosion-proof sprinkling truck of underground mine use | |
| CN208813982U (en) | Alarm set in place is withdrawn in kitchen waste cart push plate | |
| CN101734596B (en) | System and method for filling butter | |
| CN205153061U (en) | Closestool water intaking valve self -closing structure | |
| CN102759210A (en) | Automatic water feeding device of solar water heater | |
| CN205500691U (en) | Hydraulic lifting platform's limit for height protection system | |
| CN201525859U (en) | Control device for tapping of converter | |
| CN110510292B (en) | Intelligent garbage can | |
| CN105155638B (en) | Automatic closing structure of water inlet valve of closestool | |
| CN201266451Y (en) | Water tower experimental apparatus | |
| KR101803584B1 (en) | Boom Actuating System of Hybrid Excavator and Control Method | |
| CN209721011U (en) | A kind of phosphate fertilizer pouch-packaged automatic stacking system | |
| CN105303700A (en) | Vending machine | |
| CN201151927Y (en) | Loading apparatus mobile arm caging device | |
| JP2009102157A (en) | Vehicle lifting device | |
| CN204898811U (en) | Squatting pan wash control system | |
| CN204061126U (en) | One prevents water pump evacuator | |
| CN103530975A (en) | Infrared monitoring and alarm device for silicon controlled rectifier system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |