CN105525088A - Method for automatically unloading continuous annealing production line - Google Patents
Method for automatically unloading continuous annealing production line Download PDFInfo
- Publication number
- CN105525088A CN105525088A CN201510968082.3A CN201510968082A CN105525088A CN 105525088 A CN105525088 A CN 105525088A CN 201510968082 A CN201510968082 A CN 201510968082A CN 105525088 A CN105525088 A CN 105525088A
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- CN
- China
- Prior art keywords
- production line
- inspection
- band steel
- quick
- continuous annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/564—Tension control
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Factory Administration (AREA)
Abstract
The invention discloses a method for automatically unloading a continuous annealing production line, and belongs to the technical field of automatic control. The method is characterized in that when a one-key unloading button is pressed, a CPU (central processing unit) firstly sends out a back instruction to a motor, and automatic unloading is started after backing for 3 seconds. When an operator opens an access door, a limit switch is trigged, and the switch is in signal conduction, so that a quick-stop mode is triggered while starting cannot be carried out at an exit section until the access door is closed and a quick-stop signal disappears after a quality inspector completes the inspection. The safety of the quality inspector can be effectively guaranteed; and meanwhile, the method is convenient and quick, so that the operation steps are reduced, maloperations caused by manual factors are reduced, the safety of the system is enhanced, the time is saved, and the yield of the production line is finally increased.
Description
Technical field
Present method belongs to technique and automatic control technology field, in particular, provides a key and unloads an automatic control function, and utilize a button and on-the-spot 2 limit switches on picture, 1 cover PLC control system, realizes a key and automatically unload Zhang Gongneng.
Background technology
The outlet section moving back line in a cold company has a quality inspection station, and quality inspection work can carry out quality inspection and judgement to band steel herein.When inspection band steel, because quality inspection work needs directly to touch band steel with hand, outlet section is now necessarily required to stop, to guarantee the safety of quality inspection work.On the other hand, export operation personnel need to polish to belt steel surface according to belt steel surface situation once in a while, also need, with the direct contact zones steel of hand, therefore to require that outlet section stops when polishing.After parking, need the manual crawl of steel will be with to retreat, so that check belt steel surface.According to relevant data statistics, operative employee's per tour at least will check band steel more than 18 times.
For above two kinds of situations, if do not carry out contact confirmation work between site operation personnel, there is operative employee at scene just at sanding belt steel, the unexpected cycling start of outlet section, very serious fatal accident will be caused to occur, and the accident has warning taken from the overturned card ahead in other steel mills.In view of security incident lesson written in blood is deep, in order to ensure the security checking band steel personnel, inspecting stand is transformed.
In addition, before to unload a method of operation in operation step more, and need 2-3 operator to coordinate, effectively can not improve rhythm of production.
Summary of the invention
The object of present method is to provide a key to unload an automatic control function.Utilizing and automatically unload Zhang Gongneng, can effectively eliminate safe hidden trouble, reducing employee because checking that casualty rate appears in band steel; On the other hand, use this function to be automatic control mode, can the production time be saved, improve production line output.
The principle of work of present method is: after outlet section automatic stopping, picture is clicked " key unloads and opens " button, and band steel automatic backing 3S, then automatically unloads and open; Now quality inspection work opens inspection door, and inspection door both sides limit switch triggers outlet section and stops signal soon, the inspection sanding belt steel that such quality inspection work just can be safe.
Present method comprises a button on 2 limit switches, picture.When picture being pressed " key unloads and opens " button, CPU first sends backward command to motor, after retreating for 3 seconds, starts automatically to unload and opens.When operator open inspection door, trigger limit switch, switch signal conducting, thus trigger fast stop mode, now outlet section can not cycling start, needs to wait for quality inspection work after checking after shut down inspection door, stops blackout soon.
Continuous annealing production line unloads a method of opening, and its step is as follows:
Step one, after band steel arrives outlet section table position, by operative employee's button click, controller receives after band steel stops checking signal, and whether alert also needs to unload; Open as unloaded, then be with steel to retreat 3 seconds with the speed of speed 30m/Min, this belt transect steel will relax in table position, and after band steel is lax, template, surface quality etc. are more easily observed by quality inspection work, open if do not unloaded, quality inspection work just directly can enter inspecting stand region to the inspection of band steel.Specifically unloading and whether open, is determined by the actual demand of quality inspection work.
Step 2, operator open inspection door, and at this moment inspection door can touch limit switch, and switch motion can make signal conduction, signal transmission controller, and controller exports and produces line and stop signal soon, and at this moment outlet section can not cycling start; If do not arrange this condition, produce the cycling start of line emergency case when supervisory personnel checks after, easily can damage the health of supervisory personnel.
Step 3, when operator check after, after shut down inspection door, stop blackout soon.Produce line and possess cycling start condition, at this moment operator can normal running production process, continues to produce.
The benefit of present method is, when manipulation require checks strip surface quality, after parking, click " key unloads and opens " button, product line automatic stopping unloads to be opened, and then retreats band steel and is convenient to inspection, execute-in-place equipment is manually removed without operator, utilize this inventive method effectively can reduce operation steps, reduce the security that people is the mishandle caused, enhanced system.Save the time simultaneously, finally improve production line output.And consider Personal Safety, as long as when operative employee opens inspection door, outlet section just cannot normally cycling start, cannot crawl, to guarantee the safety of supervisory personnel.
Accompanying drawing explanation
Fig. 1 is whole invention control flow.
Embodiment
Present method comprises a button on 2 limit switches and picture.
After parking, operator by " key unload " push-button control scene band steel automatic backing 3 second on picture, and then start automatically to unload.After unloading, quality inspection workman opens inspection door, and limit switch signal becomes 1 from 0, and outlet section stops automatically soon, and now quality inspection workman just can sanding belt steel normally.After having checked, shut down inspection behind the door, produces line and possesses normal cycling start condition.
Claims (1)
1. continuous annealing production line unloads a method of opening, and it is characterized in that:
Step one, after band steel arrives outlet section table position, by operative employee's button click, controller receives after band steel stops checking signal, and whether alert also needs to unload; Open as unloaded, be then with steel to retreat 3 seconds with the speed of speed 30m/Min; Open if do not unloaded, quality inspection work directly enters inspecting stand region to the inspection of band steel;
Step 2, operator open inspection door, and at this moment inspection door can touch limit switch, export to produce line and stop signal soon, and at this moment outlet section can not cycling start;
Step 3, when operator check after, after shut down inspection door, stop blackout soon; Continue to produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510968082.3A CN105525088A (en) | 2015-12-21 | 2015-12-21 | Method for automatically unloading continuous annealing production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510968082.3A CN105525088A (en) | 2015-12-21 | 2015-12-21 | Method for automatically unloading continuous annealing production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105525088A true CN105525088A (en) | 2016-04-27 |
Family
ID=55767609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510968082.3A Pending CN105525088A (en) | 2015-12-21 | 2015-12-21 | Method for automatically unloading continuous annealing production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105525088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085549A (en) * | 2019-12-27 | 2020-05-01 | 山东钢铁集团日照有限公司 | Method for automatically and sectionally discharging strip steel plate shape on line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010214405A (en) * | 2009-03-16 | 2010-09-30 | Kobe Steel Ltd | Welding wire winder |
| CN202139276U (en) * | 2011-06-23 | 2012-02-08 | 仇文秋 | Continuous annealing device |
| CN103447307A (en) * | 2013-09-07 | 2013-12-18 | 鞍钢股份有限公司 | Rolling mill pressure head protection method |
| CN204406133U (en) * | 2014-12-28 | 2015-06-17 | 鞍钢冷轧钢板（莆田）有限公司 | A kind of circle shear safety device |
-
2015
- 2015-12-21 CN CN201510968082.3A patent/CN105525088A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010214405A (en) * | 2009-03-16 | 2010-09-30 | Kobe Steel Ltd | Welding wire winder |
| CN202139276U (en) * | 2011-06-23 | 2012-02-08 | 仇文秋 | Continuous annealing device |
| CN103447307A (en) * | 2013-09-07 | 2013-12-18 | 鞍钢股份有限公司 | Rolling mill pressure head protection method |
| CN204406133U (en) * | 2014-12-28 | 2015-06-17 | 鞍钢冷轧钢板（莆田）有限公司 | A kind of circle shear safety device |
Non-Patent Citations (1)
| Title |
|---|
| 王革平: "京唐冷轧连续退火机组基础自动化", 《冶金自动化》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111085549A (en) * | 2019-12-27 | 2020-05-01 | 山东钢铁集团日照有限公司 | Method for automatically and sectionally discharging strip steel plate shape on line |
| CN111085549B (en) * | 2019-12-27 | 2021-05-18 | 山东钢铁集团日照有限公司 | Method for automatically and sectionally discharging strip steel plate shape on line |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |
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| RJ01 | Rejection of invention patent application after publication |