CN102679719A - Online automatic detection device for strip steel loop decoupling and detection method thereof - Google Patents
Online automatic detection device for strip steel loop decoupling and detection method thereof Download PDFInfo
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- CN102679719A CN102679719A CN2011100584108A CN201110058410A CN102679719A CN 102679719 A CN102679719 A CN 102679719A CN 2011100584108 A CN2011100584108 A CN 2011100584108A CN 201110058410 A CN201110058410 A CN 201110058410A CN 102679719 A CN102679719 A CN 102679719A
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Abstract
The invention relates to an online automatic detection device for strip steel loop decoupling and a detection method thereof. The device comprises a rotary encoder used for detecting loop quantity and installed at the driving shaft end of a loop winching motor, a plurality of position induction switches respectively and correspondingly arranged at the normal stopping positions of loop trolleys and a programmable logic controller (PLC). The input end of the PLC is connected with the position induction switches and a winching encoder, and the output end of the PLC is connected with an alarming device. When a loop cart moves to the position of one loop trolley, the rotary encoder inputs measured loop quantity into the PLC. If the loop trolley is located at the normal stopping position, the position induction switch of the loop trolley is activated, the corresponding PLC input signal is 1, otherwise, the signal is 0. The position induction signal of each loop trolley is sequentially input into the PLC to be compared with value of a control indicator. If the signal is not inconsistent with the value, the loop trolley is in the decoupling mode, and the alarming device alarms. The detection method is simple, reliable and effective, has high cost performance and is capable of automatically and timely judging loop decoupling.
Description
Technical field
The present invention relates to stainless steel hot acid annealing process equipment, relate in particular to the online measuring technique that the stainless steel strip kink breaks off relations, be specially on-line automatic detection device and detection method thereof that the stainless steel strip kink breaks off relations.
Background technology
In iron and steel thin sheet was produced, the standing kink of putting was used for cushioning unit reduction of speed or the shutdown that the subsidiary operation time of high-speed production is brought, to guarantee the continuity of unit ordinary production.Kink in the iron and steel strip industry production line; Be conserve space, usually, kink is made up of multilayer; The looping car group is made up of a kink cart and Duo Tai kink dolly; Can realize normal hook and unhook function between every adjacent looping car, each car is pressed design function and is linked up with each car disengagement each other successively again when receiving cover successively each other during towards cover.Therefore the reliability and stability of kink work are very important; Common, the most serious fault of kink is the unusual serious heap steel that breaks off relations and cause of kink dolly; Its consequence is direct damage equipment, reduction product yield and quality; Each kink heap steel can cause direct or indirect economic loss not wait up to tens thousand of units to hundreds thousand of units, and the reliability that improves the work of kink equipment has crucial economic implications.
Most kinks in the steel industry are standing to place more hidden place, and usually can not be caused the accident by timely discovery after the unhook further enlarges.
The probability that the kink unhook takes place is generally all very little, if calculate with the quantity of producing coil of strip, usually; The probability that the kink unhook takes place is promptly produced 10,000 coil of strips about 0.03%, wherein have only several coil of strips that the unhook incident can take place; This all has higher requirement for Equipment Design, manufacturing and maintenance; Therefore the necessary online measuring technique that the stainless steel strip kink is broken off relations is researched and developed, and is reduced to minimumly with this breakdown loss, and what guarantee to produce normally carries out.
Summary of the invention
First technical problem to be solved by this invention provides a kind of on-line automatic detection device with the unhook of steel kink; Can in time detect kink; Just can in time find at the kink initial stage of breaking off relations, be controlled at accident at the beginning of the incident, thereby avoid the generation accident to magnify.
First technical problem to be solved by this invention provides a kind of online automatic detection method that simply, breaks off relations with the steel kink reliably; Can just can in time detect automatically and point out at the kink initial stage of breaking off relations through voice or acoustic-optic alarm; So that in time deal with; Be controlled at accident at the beginning of the incident, thereby avoid the extension of generation accident.
The present invention solves the technical scheme that above-mentioned first technical problem adopts: a kind of on-line automatic detection device that breaks off relations with the steel kink; It is made up of a kink cart and some kink dollies; Can realize normal hook and unhook function between every adjacent looping car, it is characterized in that said on-line automatic detection device comprises:
One is used to detect the rotary encoder of kink amount, is installed in kink hoist motor drive shaft end;
Some location sensitive switches, corresponding respectively being arranged on the normal position of rest of kink dolly cooperates with sensing chip on the kink dolly;
One PLC controller, its input links to each other with volume poplar encoder with the location sensitive switch, and output is connected with warning device.
Said warning device is phonetic alarm or audible-visual annunciator.
As improvement, said sensing chip is suitable with the backstop pendulum arm length.
The present invention solves above-mentioned second technical scheme that technical problem adopted: a kind of online automatic detection method with the unhook of steel kink; It is characterized in that adopting the on-line automatic detection device that the stainless steel strip kink breaks off relations to detect, said on-line automatic detection device comprises:
One is used to detect the rotary encoder of actual kink amount, is installed in kink hoist motor drive shaft end;
Some location sensitive switches, corresponding respectively being arranged on the normal position of rest of kink dolly cooperates with sensing chip on the kink dolly;
One PLC controller, its input links to each other with volume poplar encoder with the location sensitive switch, and output is connected with warning device.
Concrete steps are:
1) with some kink dolly numberings, the respectively corresponding definite kink amount in each kink dolly position;
2) in the PLC controller, control program is set, in control program, writes a control table,, set the numerical value of control corresponding pointer according to the size of kink amount;
3) when the kink cart moves on some kink dollies position, rotary encoder is with corresponding actual kink amount input PLC controller, if the kink dolly is in normal position of rest; Its location sensitive switch is activated; Then its corresponding PLC input signal is 1, if the kink dolly departs from normal position of rest, its location sensitive switch is in resting state; Then corresponding PLC input signal is 0, imports the signal of each kink dolly successively in the PLC controller;
4) the PLC controller compares the numerical value of steering needle corresponding under the signal of step 3) input and the actual kink amount, if be consistent, then kink moves normally; If be not inconsistent, then the kink dolly has unhook, and the PLC controller outputs to alarm with signal; Alarm starts, prompting kink unhook information.
Described definite kink measurer has the interval of relative variation, makes sensing chip and backstop pendulum arm length quite also realize cooperating.
Compared with prior art, the invention has the advantages that: the PLC controller is provided with the numerical value of control corresponding pointer according to the size of kink amount; And with actual detected to signal compare to confirm the situation of kink operation to break off relations and to judge that whole detection system can just be sent correct warning message in 0.1 second time automatically in time to kink; So that in time deal with; Be controlled at accident at the beginning of the incident, thereby avoid the extension of generation accident, guarantee the normal operation of equipment; Thereby improved product quality, improved economic benefit.Detection method of the present invention is simple and reliable, effective, has high cost performance.
Description of drawings
Fig. 1 is the scheme of installation of the on-line automatic detection device that breaks off relations of the stainless steel strip kink of the embodiment of the invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1; Structural representation for a kind of 4 layers of kink; This kink is made up of 4 kink dollies 1 and 1 kink cart 2, can realize normal hook and unhook function between every adjacent kink dolly 1, and each car press design function and linked up with each other successively when dashing cover; Each car is thrown off successively each other again when receiving cover, and this is traditional.
Rotary encoder 3 is directly installed on kink elevator 6 motor drive shaft ends, and actual kink amount is the position coordinates of kink cart 2; Each kink dolly 1 position corresponds respectively to a definite kink amount Li; When kink cart 2 moves on some kink dollies position, always there is definite kink dolly 1 to be in normal position of rest, its corresponding location sensitive switch is activated; Then its corresponding PLC input signal is " 1 "; Remaining dolly has departed from original position, and its location sensitive switch is in resting state, and then corresponding PLC input signal is 0; An ordered control " word " (byte) is formed in these all location sensitive switch L1, L2, L3, L4..... input PLC controller 4 backs; As we have i (i is a limited natural number, 1,2,3 ...) individual kink dolly 1 location sensitive switching signal imports in the PLC controller 4 successively, then input signal just constitutes an orderly binary system control word.
Each kink dolly 1 is equipped with a location sensitive switch L1, L2, L3, L4 at its normal position of rest; Cooperate with the sensing chip on the kink dolly 1; The signal of each location sensitive switch L1, L2, L3, L4 is imported in the interface of PLC controller 4 successively, forms an orderly control word (byte) " L1L2L3L4,0000 "; Because of 4 figure places can only be formed nybble, the vacancy byte needs by 0 polishing; If kink dolly 1 is in normal position of rest, its corresponding location sensitive switch is activated, and then its corresponding PLC input signal is " 1 ", if departed from original position, its location sensitive switch is in resting state, and then corresponding PLC input signal is 0; Rotary encoder 3 is installed in kink elevator 6 motor drive shaft ends, is used to detect actual kink amount, and the kink amount of assumed position inductive switch L1 correspondence position is 20～21%, and L2 is 40～41%, Why each kink position quantity has an interval that changes relatively, is because there is a normal regional extent position of kink dolly 1 regular calling on catch arm.Usually, it is suitable with the backstop pendulum arm length to get pairing location sensitive sheet, and dolly is all thought regular calling this interval stop.If the length of location sensitive sheet is L
Sense, the length that dolly is stopped backstop is that L ends, and then usually gets L
Sense=L
End
In PLC controller 4, control program is set in advance, in control program, writes a control table (the bytes store table that above 4 corresponding controls " position " are formed), like table 1, actual kink amount is used as a pointer and uses in the PLC control program; When actual kink amount L ζ＜20%, steering needle gets 0000,000 and L1L2L3L4; More whether 0000 byte equates that if equate, then the kink operation is normal; The output of PLC controller 4 alarm frees, if do not wait, then kink dolly 1 has unhook; PLC controller 4 outputs to audible-visual annunciator 5, and audible-visual annunciator 5 starts, and just stops up to artificial " affirmation resets "; When actual kink amount 20%≤L ζ＜40%, steering needle gets 1000,000 and L1L2L3L4; More whether 0000 byte equates that if equate, then the kink operation is normal; The output of PLC controller 4 alarm frees, if do not wait, then kink dolly 1 has unhook; PLC controller 4 outputs to audible-visual annunciator 5, and audible-visual annunciator 5 starts, and just stops up to artificial " affirmation resets "; And the like, each data all can obtain the chance of comparison, and according to the size of kink amount, PLC controller 4 carries out computing automatically again and again automatically for it, and whole detection system can be worked uninterruptedly.If break off relations in case take place because of unusual at certain kink; Then detection system can just be sent correct warning message in 0.1 second time; Make operating personnel in the most disconnected time, obtain the information that kink breaks off relations; Thereby make timely reaction, be controlled at the state of affairs among the bud, farthest reduced the production accident loss.
Subordinate list 1
In like manner, detection method and said method with band steel kink that i kink dolly and kink cart form are identical, difference be the location sensitive switch what directly import the quantity of control bit corresponding to PLC.
Claims (5)
1. on-line automatic detection device that breaks off relations with the steel kink, it is made up of a kink cart and some kink dollies, can realize between every adjacent looping car normally linking up with and the unhook function, it is characterized in that also comprising:
One is used to detect the rotary encoder of actual kink amount, is installed in kink hoist motor drive shaft end;
Some location sensitive switches, corresponding respectively being arranged on the normal position of rest of kink dolly cooperates with sensing chip on the kink dolly;
One PLC controller, its input links to each other with volume poplar encoder with the location sensitive switch, and output is connected with warning device.
2. on-line automatic detection device according to claim 1 is characterized in that said warning device is phonetic alarm or audible-visual annunciator.
3. on-line automatic detection device according to claim 2 is characterized in that said sensing chip is suitable with the backstop pendulum arm length.
4. the online automatic detection method with the unhook of steel kink is characterized in that adopting the on-line automatic detection device that band steel kink breaks off relations to detect, and said on-line automatic detection device comprises:
One is used to detect the rotary encoder of actual kink amount, is installed in kink hoist motor drive shaft end;
Some location sensitive switches, corresponding respectively being arranged on the normal position of rest of each kink dolly cooperates with sensing chip on the kink dolly;
One PLC controller, its input links to each other with volume poplar rotary encoder with the location sensitive switch, and output is connected with alarm;
Concrete steps are:
1) with some kink dolly numberings, the respectively corresponding definite kink amount in each kink dolly position;
2) in the PLC controller, work out control program in advance, in control program, write a control table,, set the numerical value of control corresponding pointer according to the size of kink amount;
3) when the kink cart moves on some kink dollies position, the actual kink amount input PLC controller that rotary encoder will record is if the kink dolly is in normal position of rest; Its location sensitive switch is activated; Then its corresponding PLC input signal is 1, if the kink dolly departs from normal position of rest, its location sensitive switch is in resting state; Then corresponding PLC input signal is 0, imports the location sensitive signal of each kink dolly successively in the PLC controller;
4) signal of input and the numerical value of steering needle are compared, if be consistent, then the kink operation is normal, if be not inconsistent, then the kink dolly has unhook, and the PLC controller outputs to audible-visual annunciator, and audible-visual annunciator starts, prompting kink unhook information.
5. online automatic detection method according to claim 4 is characterized in that described definite kink measurer has the interval of relative variation, makes sensing chip and backstop pendulum arm length quite also realize cooperating.
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| CN201110058410.8A CN102679719B (en) | 2011-03-07 | 2011-03-07 | Online automatic detection device for strip steel loop decoupling and detection method thereof |
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| CN201110058410.8A CN102679719B (en) | 2011-03-07 | 2011-03-07 | Online automatic detection device for strip steel loop decoupling and detection method thereof |
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| CN102679719B CN102679719B (en) | 2014-06-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008369A (en) * | 2012-12-07 | 2013-04-03 | 江苏永钢集团有限公司 | Automatic loop cutting control device |
| CN106975251A (en) * | 2017-05-09 | 2017-07-25 | 毛圆翔 | Center-transmission single-pipe suction dredger |
| CN110142302A (en) * | 2019-05-23 | 2019-08-20 | 首钢京唐钢铁联合有限责任公司 | Fault detection method and device for swing door |
| CN110193521A (en) * | 2019-05-13 | 2019-09-03 | 上海二十冶建设有限公司 | A kind of method cold rolling Horizontal loose sleeve installation and run sideslip adjustment |
| CN113070352A (en) * | 2021-04-25 | 2021-07-06 | 北京京诚之星科技开发有限公司 | Automatic loop swing door of switching |
| CN114480830A (en) * | 2022-02-11 | 2022-05-13 | 山东钢铁集团日照有限公司 | Redundancy control method for vertical loop of cold rolling continuous annealing line |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008369A (en) * | 2012-12-07 | 2013-04-03 | 江苏永钢集团有限公司 | Automatic loop cutting control device |
| CN106975251A (en) * | 2017-05-09 | 2017-07-25 | 毛圆翔 | Center-transmission single-pipe suction dredger |
| CN110193521A (en) * | 2019-05-13 | 2019-09-03 | 上海二十冶建设有限公司 | A kind of method cold rolling Horizontal loose sleeve installation and run sideslip adjustment |
| CN110193521B (en) * | 2019-05-13 | 2020-11-20 | 上海二十冶建设有限公司 | Method for installing cold-rolled horizontal loop and adjusting running deviation |
| CN110142302A (en) * | 2019-05-23 | 2019-08-20 | 首钢京唐钢铁联合有限责任公司 | Fault detection method and device for swing door |
| CN113070352A (en) * | 2021-04-25 | 2021-07-06 | 北京京诚之星科技开发有限公司 | Automatic loop swing door of switching |
| CN114480830A (en) * | 2022-02-11 | 2022-05-13 | 山东钢铁集团日照有限公司 | Redundancy control method for vertical loop of cold rolling continuous annealing line |
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| CN102679719B (en) | 2014-06-04 |
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