CN103753071A - Cold rolling processing line welding seam tracking method - Google Patents
Cold rolling processing line welding seam tracking method Download PDFInfo
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- CN103753071A CN103753071A CN201410048428.3A CN201410048428A CN103753071A CN 103753071 A CN103753071 A CN 103753071A CN 201410048428 A CN201410048428 A CN 201410048428A CN 103753071 A CN103753071 A CN 103753071A
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- weld seam
- tracing area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
The invention relates to a cold rolling processing line welding seam tracking method which is applied in a cold rolling processing line. According to the welding seam tracking method, welding seam tracking is conducted in a subarea mode, so that the welding seam tracking is made to be more accurate. The method comprises the steps that the cold rolling processing line is divided into a plurality of tracking areas, a tension roller is arranged in an outlet of each tracking area and is used as a speed standard tension roller of the corresponding tracking area, and the tracking areas comprise fixed-length tracking areas and non-fixed-length tracking areas; when a welding seam is generated in the cold rolling processing line, welding information corresponding to the welding seam is generated, and the welding seam information of the welding seam is stored in real time; when the welding seam enters one tracking area, collection of the roller face line speed of the speed standard tension roller of the corresponding tracking area is started, the roller face line speed is used as the moving speed standard of the welding seam in the tracking area, and the real-time stroke of the welding seam in the corresponding tracking area is obtained; the real-time position of the welding seam is rectified in the outlets of the non-fixed-length tracking areas; area information groups of all the tracking areas are stored in real time.
Description
Technical field
The present invention relates to a kind of welding seam tracking method, relate in particular to a kind of cold rolling processing line welding seam tracking method.
Background technology
Along with the develop rapidly of computer autocontrol technique, cold rolling processing line, particularly the automaticity of Continuous Cold Rolled Strip production line is more and more higher.Simultaneously, requirement is also more accurate to the weld joint tracking with steel, can not adopt simple photoelectricity physical detecting mode to detect weld seam, but to effectively follow the tracks of at the omnidistance butt welded seam of production line, to pass through after a certain equipment certain distance at weld seam, upload, issue a certain parameter, or start, stop a certain equipment, and the various technological parameters such as strip tension, the speed of service are realized to change automatically.Because induction heater internal tension changes and the factor such as each section of velocity variations can affect the precision of weld joint tracking, therefore existing welding seam tracking method is only got certain any rate signal to calculate position while welding is far from being enough.In addition, when whole piece unit has more than 2 weld seam to occur, can cause again the confusion of weld joint tracking.Thus, position while welding is followed the tracks of the accuracy that correctness is directly connected to equipment operation or parameter modification sequential, invent a kind of method that subregion carries out weld joint tracking in cold rolling processing line and be this area in the urgent need to.
Summary of the invention
The object of the present invention is to provide a kind of cold rolling processing line welding seam tracking method, subregion carries out weld joint tracking so that weld joint tracking is more accurate, is convenient to all parts in cold rolling processing line and parameter to carry out further automatically controlling.
To achieve these goals, the invention provides a kind of cold rolling processing line welding seam tracking method, comprise the following steps: region partiting step: the initial position occurring from weld seam starts described cold rolling processing line to be divided into some tracing areas, make to be provided with a jockey pulley near each tracing area exit, as the Velocity Reference jockey pulley of this tracing area, described some tracing areas comprise regular length tracing area and non-regular length tracing area;
Weld seam information storing step: while generating weld seam in described cold rolling processing line, generate the weld seam information corresponding with described weld seam, and the weld seam information of weld seam described in real-time storage;
Weld seam stroke calculation procedure: when described weld seam enters after a tracing area, start to gather the roll surface speed of Velocity Reference jockey pulley of the corresponding tracing area of institute as the Velocity Reference of described weld seam movement in described tracing area, draw the real-time stroke of described weld seam in described tracing area;
Aligning step: the real time position of proofreading and correct described weld seam in the exit of described not regular length tracing area;
Weld seam information storing step: the area information group of each tracing area of real-time storage, comprises the weld seam information of each tracing area inside weld and the self information of each tracing area.
Preferably, described weld seam information at least comprises coil of strip No. ID, the real-time stroke of weld seam in current tracing area; The self information of described tracing area at least comprises the length of described tracing area and the weld seam quantity of described tracing area.
Preferably, described weld seam stroke calculation procedure also comprises, when the real-time stroke of described weld seam in a tracing area equals the length of tracing area, notifies next tracing area to start to calculate the real-time stroke of described weld seam.
Preferably, also comprise stroke compensation process: when having error between total kilometres that described weld seam calculates in described regular length tracing area and the physical length of described tracing area, generate one stroke offset, be delivered in the real-time stroke of described weld seam in next tracing area and compensate.
Preferably, described weld seam stroke calculation procedure further comprises, on Velocity Reference jockey pulley by the tracing area at described weld seam place, connect an encoder and gather the pulse information in described weld movement process, by described pulse information, calculate the real-time stroke L of described weld seam in described tracing area and be:
wherein D is the diameter of Velocity Reference jockey pulley of the tracing area at described weld seam place; I is the transmission speed reducing ratio of Velocity Reference jockey pulley of the tracing area at described weld seam place; R is the umber of pulse that encoder rotates a circle; Δ L is the circumferential displacement of the Velocity Reference jockey pulley of described weld seam place tracing area in the scan period, the counted number of pulses of the described encoder that Δ P collected for each scan period, the number of times of the scan period that n is process.
Preferably, described weld seam is at the real-time stroke L of reality of described not regular length tracing area
cPfor: L
cP=(L
pV-L
sV)+L, wherein, L
pVfor the physical length of regular length tracing area not described in current; L
sVfor described weld seam just entered described in the initial length in this region during regular length tracing area not.
Preferably, also comprise trans-regional position while welding tracking step: preset a target location, at described weld seam behind described target location, by described weld seam through the stroke of at least one tracing area cumulative obtain described weld seam by the real time position behind described target location.
The present invention, owing to adopting above technical scheme, has following advantage and good effect:
1) the present invention, by cold rolling processing line being divided into the tracking that some tracing areas carry out weld seam, enters tracing area porch at weld seam and starts to calculate stroke, exit correction position while welding or produce offset, makes weld joint tracking result more accurate;
2) the present invention carries out stroke calculating and compensation arranges by regular length tracing area and regular length tracing area are not distinguished, and makes weld joint tracking result more accurate;
3) the present invention, by the situation in real time record area information group and the comprehensive detection cold rolling processing line of area information, is convenient to further all parts in cold rolling processing line is sent to instruction and parameters is debugged, and realizes the accurate control of production process.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of cold rolling processing line welding seam tracking method of the present invention;
Fig. 2 is the structure chart of the cold rolling processing line in the embodiment of the present invention.
The specific embodiment
Further illustrate the present invention with specific embodiment with reference to the accompanying drawings.
Accompanying drawing 1 is the flow chart of a kind of cold rolling processing line welding seam tracking method provided by the invention, and a kind of cold rolling processing line welding seam tracking method provided by the invention, comprises the following steps:
Region partiting step: the initial position occurring from weld seam starts cold rolling processing line to be divided into some tracing areas, make to be provided with a jockey pulley near some tracing areas exit, as the Velocity Reference jockey pulley of this tracing area, some tracing areas comprise regular length tracing area and non-regular length tracing area.
As shown in fig. 1, the uncoiler of take is example to this section of unit of jockey pulley, Continuous Cold Rolled Strip production line is divided into, first area 1, second area 2, the first tracing area 3, the second tracing area 4 and the 3rd tracing area 5 these 5 regions, wherein, first area 1 and second area 2 are respectively from the first uncoiler 11 and the second uncoiler to welding machine 21, in this two region, there is not weld seam, it is not tracing area, the first tracing area 3 is from welding machine 21 to first jockey pulley 1 rollers 61, the second tracing area 4 is from the first jockey pulley 2 rollers 62 to proofreading and correct welding seam detector 7, the 3rd tracing area is from welding seam detector 7 to the 3rd jockey pulley 63.Since the first tracing area 3, by welding machine 31, producing new weld seam follows the tracks of.The first jockey pulley 61, the second jockey pulley 62 and the 3rd jockey pulley 63 are respectively the Velocity Reference jockey pulley of described the first tracing area 3, the second tracing area 4 and the 3rd tracing area 5.In the second tracing area 4, be provided with entry loop 41, in its region, band steel length changes in real time, is regular length tracing area not, and band steel length in the first tracing area 3 and the second tracing area 4 does not change, therefore be regular length tracing area.
Weld seam information storing step: while generating weld seam in described cold rolling processing line, generate the weld seam information corresponding with described weld seam, and the weld seam information 9 of weld seam described in real-time storage, weld seam information at least comprises coil of strip No. ID, the real-time stroke of weld seam in current tracing area; Weld seam information at least comprises the real time position of weld seam, the real-time speed of weld seam, No. ID, coil of strip and the weld seam stroke in each tracing area of process.
Adopt respectively the roll surface speed of the first jockey pulley 61, the second jockey pulley 62 and the 3rd jockey pulley 63.Consider that the factors such as the strip tension of entry loop in the second tracing area and kink quantitative change can produce considerable influence in butt welded seam position, so welding seam detector 71 has been installed at entry loop outlet side, utilize welding seam detector 7 to proofread and correct position while welding, the precision of calculating to improve weld seam stroke.
Weld seam stroke calculation procedure: while just having entered tracing area from weld seam, start to gather the roll surface speed of the Velocity Reference jockey pulley in the corresponding tracing area of institute as the Velocity Reference of weld seam movement in tracing area, draw the real-time stroke of weld seam in tracing area; When the real-time stroke at some tracing area inside welds equals the length of tracing area, notify next tracing area to start to calculate the real-time stroke of weld seam.
By connecting an encoder 8 on the Velocity Reference jockey pulley at weld seam place tracing area, gather the pulse information in weld movement process, by pulse information, calculate the real-time stroke L of weld seam in tracing area and be:
wherein D is the diameter of jockey pulley in the tracing area of weld seam place; I is the Velocity Reference jockey pulley transmission speed reducing ratio of weld seam place tracing area; R is the umber of pulse that encoder rotates a circle; Δ L is the circumferential displacement of the Velocity Reference jockey pulley of scan period inside weld place tracing area, the counted number of pulses of the encoder that Δ P collected for each scan period, the number of times of the scan period that n is process.
Because the length in kink region can change, the real-time stroke L of the weld seam that now only calculates gained according to single encoded device in tracing area, can not real surface illustrate weld seam in region by the physical location of designated equipment.Weld seam is at the real-time stroke L of reality of regular length tracing area not
cPfor: L
cP=(L
pV-L
sV)+L, wherein, L
pVphysical length for current not regular length tracing area; L
sVthe initial length in this region while just having entered regular length tracing area not for weld seam, L calculates the real-time stroke of weld seam in tracing area by pulse information.
Weld seam information storing step: preserve the area information group 10 of each tracing area, comprise the weld seam information of each tracing area inside weld and the self information of each tracing area.The self information of tracing area at least comprises the length of tracing area and the weld seam quantity of tracing area.
By the real-time storage to area information, the area information group of each tracing area generally can be stored in PLC control chip, and be presented in man-machine interface 111 in the mode of animation, can be at any time physical location and the control status of steel on production line that ungird, to start certain function or assign corresponding control data in the moment of appointment, facilitated and follow-uply further all parts in cold rolling processing line has been sent to instruction and parameters is debugged, realized the accurate control of production process.
Aligning step: the real time position of proofreading and correct weld seam in the exit of regular length tracing area not.
Weld seam is during through the exit of regular length tracing area not, and the real time position that welding seam detector 7 can be proofreaied and correct weld seam places be next tracing area, has also changed accordingly information in the area information group 10 of connected two tracing areas.
Stroke compensation process, when having error between stroke that weld seam calculates in tracing area and the physical length of tracing area, generates one stroke offset, is delivered in the real-time stroke of weld seam in next tracing area and compensates.
Exit if any welding seam detector 72 at regular length tracing area, stroke offset is just more accurate.Offset calculates as follows:
In formula, T
cMPfor weld seam stroke offset, m; L
cNTfor real-time weld seam stroke calculated value, m; L
zNfor tracing area physical length, m; P is the weld seam number in tracing area.
While having 1 weld seam to have (P=1) and unit operation in this tracing area, T
cMPvalue diminishes gradually, until welding seam detector detects weld seam, P value is at once clear 0, thinks that weld seam has gone out this tracing area, now T
cMPvalue self-insurance, be delivered in the real-time stroke of weld seam in next tracing area and compensate, so just realized stroke compensation.
Trans-regional position while welding tracking step: preset a target location, at weld seam behind target location, start by weld seam the roll surface speed of Velocity Reference jockey pulley of tracing area of process calculate the in real time cumulative stroke of weld seam, show that weld seam passes through the real time position behind target location.Designed corresponding PLC functional block, in order to realize position while welding computing function, enable signal keeps always, and calculating always that just can be trans-regional is gone down.Different from the weld seam stroke calculation procedure of dividing with tracing area, it is not to be subject to region limits that position while welding calculates, can be according to the needs of technique, according to the length of each tracing area, calculate weld seam by concrete residing position behind certain target location, the positional information at each weld seam place also stores in corresponding area information group 10.
Above-mentioned disclosed be only specific embodiments of the invention, this embodiment is only that clearer explanation the present invention is used, and limitation of the invention not, the changes that any person skilled in the art can think of, all should drop in protection domain.
Claims (7)
1. a cold rolling processing line welding seam tracking method, is applied to, in a cold rolling processing line, it is characterized in that, comprises the following steps:
Region partiting step: the initial position occurring from weld seam starts described cold rolling processing line to be divided into some tracing areas, make to be provided with a jockey pulley near each tracing area exit, as the Velocity Reference jockey pulley of this tracing area, described some tracing areas comprise regular length tracing area and non-regular length tracing area;
Weld seam information storing step: while generating weld seam in described cold rolling processing line, generate the weld seam information corresponding with described weld seam, and the weld seam information of weld seam described in real-time storage;
Weld seam stroke calculation procedure: when described weld seam enters after a tracing area, start to gather the roll surface speed of Velocity Reference jockey pulley of the corresponding tracing area of institute as the Velocity Reference of described weld seam movement in described tracing area, draw the real-time stroke of described weld seam in described tracing area;
Aligning step: the real time position of proofreading and correct described weld seam in the exit of described not regular length tracing area;
Weld seam information storing step: the area information group of each tracing area of real-time storage, comprises the weld seam information of each tracing area inside weld and the self information of each tracing area.
2. a kind of cold rolling processing line welding seam tracking method as claimed in claim 1, is characterized in that, described weld seam information at least comprises coil of strip No. ID, the real-time stroke of weld seam in current tracing area; The self information of described tracing area at least comprises the length of described tracing area and the weld seam quantity of described tracing area.
3. a kind of cold rolling processing line welding seam tracking method as claimed in claim 1 or 2, it is characterized in that, described weld seam stroke calculation procedure also comprises, when the real-time stroke of described weld seam in a tracing area equals the length of tracing area, notify next tracing area to start to calculate the real-time stroke of described weld seam.
4. a kind of cold rolling processing line welding seam tracking method as claimed in claim 1 or 2, it is characterized in that, also comprise stroke compensation process: when having error between total kilometres that described weld seam calculates in described regular length tracing area and the physical length of described tracing area, generate one stroke offset, be delivered in the real-time stroke of described weld seam in next tracing area and compensate.
5. a kind of cold rolling processing line welding seam tracking method as claimed in claim 1 or 2, it is characterized in that, described weld seam stroke calculation procedure further comprises, on Velocity Reference jockey pulley by the tracing area at described weld seam place, connect an encoder and gather the pulse information in described weld movement process, by described pulse information, calculate the real-time stroke L of described weld seam in described tracing area and be:
wherein D is the diameter of Velocity Reference jockey pulley of the tracing area at described weld seam place; I is the transmission speed reducing ratio of Velocity Reference jockey pulley of the tracing area at described weld seam place; R is the umber of pulse that encoder rotates a circle; Δ L is the circumferential displacement of the Velocity Reference jockey pulley of described weld seam place tracing area in the scan period, the counted number of pulses of the described encoder that Δ P collected for each scan period, the number of times of the scan period that n is process.
6. a kind of cold rolling processing line welding seam tracking method as claimed in claim 5, is characterized in that, described weld seam is at the real-time stroke L of reality of described not regular length tracing area
cPfor: L
cP=(L
pV-L
sV)+L, wherein, L
pVfor the physical length of regular length tracing area not described in current; L
sVfor described weld seam just entered described in the initial length in this region during regular length tracing area not.
7. a kind of cold rolling processing line welding seam tracking method as described in any one in claim 1 or 2, also comprise trans-regional position while welding tracking step: preset a target location, at described weld seam behind described target location, by described weld seam through the stroke of at least one tracing area cumulative obtain described weld seam by the real time position behind described target location.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048428.3A CN103753071A (en) | 2014-02-12 | 2014-02-12 | Cold rolling processing line welding seam tracking method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048428.3A CN103753071A (en) | 2014-02-12 | 2014-02-12 | Cold rolling processing line welding seam tracking method |
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| CN103753071A true CN103753071A (en) | 2014-04-30 |
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| CN201410048428.3A Withdrawn CN103753071A (en) | 2014-02-12 | 2014-02-12 | Cold rolling processing line welding seam tracking method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438934A (en) * | 2014-11-07 | 2015-03-25 | 安徽马钢自动化信息技术有限公司 | Strip steel welding seam positioning system and method |
| CN105290113A (en) * | 2014-06-23 | 2016-02-03 | 鞍钢股份有限公司 | Cold rolling continuous processing line inlet steel coil tracking method |
| CN105488275A (en) * | 2015-11-30 | 2016-04-13 | 中冶南方（武汉）自动化有限公司 | Tracking, correcting method of welding seam in cold rolling production line loop region and system thereof |
| CN117788521A (en) * | 2023-12-28 | 2024-03-29 | 北京京杰锐思技术开发有限公司 | Joint real-time tracking method for plate and strip processing line |
-
2014
- 2014-02-12 CN CN201410048428.3A patent/CN103753071A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290113A (en) * | 2014-06-23 | 2016-02-03 | 鞍钢股份有限公司 | Cold rolling continuous processing line inlet steel coil tracking method |
| CN104438934A (en) * | 2014-11-07 | 2015-03-25 | 安徽马钢自动化信息技术有限公司 | Strip steel welding seam positioning system and method |
| CN105488275A (en) * | 2015-11-30 | 2016-04-13 | 中冶南方（武汉）自动化有限公司 | Tracking, correcting method of welding seam in cold rolling production line loop region and system thereof |
| CN105488275B (en) * | 2015-11-30 | 2018-08-17 | 中冶南方（武汉）自动化有限公司 | Tracking, modification method and its system of rolling mill production line kink region inside weld |
| CN117788521A (en) * | 2023-12-28 | 2024-03-29 | 北京京杰锐思技术开发有限公司 | Joint real-time tracking method for plate and strip processing line |
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Application publication date: 20140430 |