CN103658195A - Improved strip steel weld joint mark hole detection device of cold rolling and pickling combined unit - Google Patents
Improved strip steel weld joint mark hole detection device of cold rolling and pickling combined unit Download PDFInfo
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- CN103658195A CN103658195A CN201310723189.2A CN201310723189A CN103658195A CN 103658195 A CN103658195 A CN 103658195A CN 201310723189 A CN201310723189 A CN 201310723189A CN 103658195 A CN103658195 A CN 103658195A
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Abstract
The invention discloses an improved strip steel weld joint mark hole detection device of a cold rolling and pickling combined unit. A first emitter and a first grating emitter are sequentially installed on the operation side of a main emitter from inside to outside, a first receiver and a first grating receiver are sequentially installed on the operation side of a main receiver from inside to outside, the first emitter corresponds to the first receiver and the first grating emitter corresponds to the first grating receiver; a second emitter and a second grating emitter are sequentially installed on the transmission side of the main emitter from inside to outside, a second receiver and a second grating receiver are sequentially installed on the transmission side of the main receiver from inside to outside, the second emitter corresponds to the second receiver and the second grating emitter corresponds to the second grating receiver. According to the device, a combination of two gratings and three weld joint mark hole detectors is adopted, effective detection areas are increased, the problem caused by the fact that one weld joint mark hole detector is directly adopted is solved, it is guaranteed that strip steel weld joint mark holes can be accurately detected no matter how strip steel deviates, accidents of overlarge thickness differences or strip breakage or the like due to the fact that the strip steel weld joint mark holes move away from the effective detection areas of the weld joint mark hole detectors are eliminated, and normal production of the cold rolling and pickling combined unit and a continuous annealing unit is guaranteed.
Description
Technical field
The present invention relates to a kind of band steel checkout gear, be applicable to the detection that associating unit band steel weld seam index aperture is rolled in cold rolling acid, particularly associating unit band steel weld seam index aperture checkout gear is rolled in improved cold rolling acid.
Background technology
What associating unit was rolled in cold rolling acid is cold rolling important checkout equipment with steel weld seam index aperture checkout gear, and wherein weld seam index aperture detector consists of transmitter and receiver, and is installed on the outlet that associating machine set loop is rolled in cold rolling acid.In order to ensure acid, roll the continuous rolling of associating unit, the welding machine that associating unit entrance area is rolled in acid welds together the afterbody of the head of next coiled strip steel and last coiled strip steel, and in commissure, rushes the index aperture of a diameter 20mm.Weld seam between two coiled strip steels enters before milling train, must be by weld seam index aperture detector to following the tracks of with the position of steel weld seam.Weld seam index aperture detector operation principle, as shown in Figure 1.As Fig. 1, transmitter and the receiver of weld seam index aperture detector are horizontally set at the top and bottom with steel 3, vertical with band steel 3 traffic directions.With steel 3, between the transmitter of weld seam index aperture detector and receiver, pass through, transmitter sends infrared light beam always.When the index aperture K with steel 3 commissures does not arrive weld seam index aperture detector, infrared light beam is with steel 3 to block, and receiver can not receive infrared light beam; When weld seam index aperture detector is passed through in the index aperture K operation with steel 3 commissures, the infrared light beam that transmitter sends sees through index aperture K, be received by the receiver, weld seam index aperture detector will send signal and roll combination machine set control system to acid, acid is rolled combination machine set control system and will be responded in time, open roll gap, to guarantee that weld seam can be smoothly by visual plants such as milling trains.
At present, effective detection width H that associating unit band steel weld seam index aperture detector is rolled in acid only has two kinds of 220mm or 308mm, the width that must set by weld seam index aperture detector with steel weld seam index aperture is in the region of 220mm or 308mm, just can be detected.But roll in the actual production of associating unit in acid, can be due to equipment with the reason of steel, can there is sideslip in band steel course of conveying, although deviation correcting device can be rectified a deviation to band steel, but still can there is the phenomenon of strip running deviation, when shifting out width that weld seam index aperture detector sets with steel weld seam index aperture and be the surveyed area of 220mm or 308mm, weld seam index aperture detector cannot detect band steel weld seam index aperture, as shown in Figure 2.As Fig. 2, after strip running deviation 120mm, be punched in the 20mm diameter index aperture K in the middle of steel 3 widths and shifted out L=120mm with respect to weld seam index aperture detector longitudinal centre line synchronous horizontal, the surveyed area that the width H that has shifted out the setting of weld seam index aperture detector is 220mm, weld seam index aperture detector cannot detect band steel 3 weld seam index aperture K, while being with steel 3 weld seams to milling train, combination machine set control system is rolled in acid cannot correct operation, do not open in time roll gap, and then cause welded seam area band steel 3 thickness deviations excessive, when serious, cause being with the accidents such as steel 3 broken belts, even without broken belt occurs, but because the flying shear of milling train outlet cannot accurately be sheared in commissure, cause weld seam bag to enter in the coil of strip of producing, when this coil of strip moves back unit while carrying out annealing in process connecting, weld seam in coil of strip may disconnect in stove, the accident of furnace zone steel 3 broken belt blowing outs is moved back by the company of causing.
Summary of the invention
The object of the invention is to, by improving cold rolling acid, roll associating unit band steel weld seam index aperture checkout gear, the effective coverage that weld seam index aperture detector is detected increases, stop because band steel weld seam index aperture moves apart the effective surveyed area of weld seam index aperture detector the accidents such as the excessive or broken belt of the thickness deviation that causes.
The present invention is achieved through the following technical solutions above-mentioned purpose, associating unit band steel weld seam index aperture checkout gear is rolled in improved cold rolling acid, comprise main weld index aperture detector, the first weld seam index aperture detector, the second weld seam index aperture detector, 1# grating and 2# grating, main weld index aperture detector consists of main transmitter and main receiver, the first weld seam index aperture detector consists of the first transmitter and the first receiver, the second weld seam index aperture detector consists of the second transmitter and the second receiver, 1# grating consists of 1# light barrier transmitter and 1# grating receiver, 2# grating consists of 2# light barrier transmitter and 2# grating receiver, main transmitter is positioned at the top that main receiver is corresponding, one side of main transmitter and main receiver is fore side, opposite side is transmission side, main transmitter and main receiver fore side from inside to outside successively correspondence the first transmitter and the first receiver are housed, 1# light barrier transmitter and 1# grating receiver, main transmitter and main receiver transmission side from inside to outside successively correspondence the second transmitter and the second receiver, 2# light barrier transmitter and 2# grating receiver are housed.
The present invention respectively increases a weld seam index aperture detector (i.e. the first weld seam index aperture detector and the second weld seam index aperture detector) and grating (being 1# grating and 2# grating) at the transmission side of original weld seam index aperture detector and fore side, band steel 3 fore sides have installed 1# grating and the first weld seam index aperture detector additional, and band steel transmission side has installed 2# grating and the second weld seam index aperture detector additional.Whether 1# grating is with deciding the first weld seam index aperture detector detection signal effective, and whether 2# grating is with deciding the second weld seam index aperture detector detection signal effective, and original weld seam index aperture detector detection signal and grating are irrelevant, continuously effective.If the light barrier transmitter of certain increase sends light beam, with steel, block the light that this light barrier transmitter sends, this corresponding grating receiver cannot receive light beam, and this grating will send the signal detecting with steel, and this grating determines that corresponding weld seam index aperture detector detection signal is effective.If the light barrier transmitter of certain increase sends light beam, with steel, do not block this light barrier transmitter by the light sending, this corresponding grating receiver will receive light beam, this grating will send the signal not detecting with steel, and this grating determines that corresponding weld seam index aperture detector detection signal is invalid.
Advantage of the present invention is by adopting the combination of two gratings and existing three weld seam index aperture detectors, increased the effective coverage that detection device detects, prevented the problem that weld seam index aperture detector of direct employing brings, no matter be with how sideslip of steel, can guarantee the accurate detection with steel weld seam, stopped owing to moving apart the accidents such as the excessive or broken belt of thickness deviation that the effective surveyed area of weld seam index aperture detector causes with steel weld seam index aperture, guaranteed that cold rolling acid rolls the normal production of associating unit.
Accompanying drawing explanation
Fig. 1 is weld seam index aperture detector fundamental diagram.
Fig. 2 is the schematic diagram that strip running deviation weld seam index aperture shifts out weld seam index aperture detector surveyed area.
Fig. 3 is the schematic diagram that strip running deviation can not block the effective surveyed area of weld seam index aperture detector width H=440mm.
Fig. 4 is structural representation of the present invention.
Fig. 5 is embodiments of the invention schematic diagrames.
In figure: A, main transmitter; B, main receiver; 1A, the first transmitter; 1B, the first receiver; 2A, the second transmitter, 2B, the second receiver; 1C, 1# light barrier transmitter; 1D, 1# grating receiver; 2C, 2# light barrier transmitter; 2D, 2# grating receiver; 3, band steel; K, weld seam index aperture; Effective detection width of H, weld seam index aperture detector (unit is mm); L, weld seam index aperture and distance (unit is mm) with steel longitudinal centre line.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further set forth.
In order to prevent being with steel weld seam index aperture to shift out weld seam index aperture detector surveyed area, applicant once attempted the weld seam index aperture detector of existing width H=220mm surveyed area to make into the weld seam index aperture detector of a width H=660mm surveyed area, but this design is not suitable for the situation of ribbon steel, for example, when band steel 3 sideslips of width 700mm surpass 20mm, one side with steel 3 can move into weld seam index aperture detector surveyed area, with steel 3, the surveyed area of weld seam index aperture detector effectively cannot be blocked, when band steel 3 weld seams do not arrive weld seam index aperture detector, transmitter sends infrared light beam, the infrared light beam that transmitter sends can see through band steel 3 Bu Wai spaces, limit, receiver will detect infrared light beam always, cause weld seam index aperture detector false judgment, band steel 3 weld seams have arrived weld seam index aperture detector, produce weld seam detection fault.Equally, as shown in Figure 3, as the weld seam index aperture detector of a former width H=220mm surveyed area made into the weld seam index aperture detector of a width H=440mm surveyed area, when as long as band steel 3 sideslips of width 700mm surpass 130mm, when band steel 3 weld seams do not arrive weld seam index aperture detector, with steel 3, also the surveyed area of weld seam index aperture detector effectively cannot be blocked, the infrared light beam that transmitter sends also can see through the space outside steel edge portion, receiver will detect infrared light beam always, cause weld seam index aperture detector false judgment band steel 3 weld seams to arrive weld seam index aperture detector, produce weld seam detection fault.In order to address this problem, on the weld seam index aperture detector both sides that increase, increase again grating.
Referring to Fig. 4, associating unit band steel weld seam index aperture checkout gear is rolled in cold rolling acid after improvement, comprise main weld index aperture detector, the first weld seam index aperture detector, the second weld seam index aperture detector, 1# grating and 2# grating, main weld index aperture detector consists of main transmitter A and main receiver B, the first weld seam index aperture detector consists of the first transmitter 1A and the first receiver 1B, the second weld seam index aperture detector consists of the second transmitter 2A and the second receiver 2B, 1# grating consists of 1# light barrier transmitter 1C and 1# grating receiver 1D, 2# grating consists of 2# light barrier transmitter 2C and 2# grating receiver 2D, main transmitter A is positioned at top corresponding to main receiver B, a side of main transmitter A and main receiver B is fore side, opposite side is transmission side, main transmitter A and main receiver B fore side from inside to outside successively correspondence the first transmitter 1A and the first receiver 1B are housed, 1# light barrier transmitter 1C and 1# grating receiver 1D, main transmitter A and main receiver B transmission side from inside to outside successively correspondence the second transmitter 2A and the second receiver 2B, 2# light barrier transmitter 2C and 2# grating receiver 2D are housed.
embodiment:as shown in Figure 5, when band steel 3 is to fore side sideslip 130mm and when above, be punched in the steel 3 20mm diameter index aperture K in the middle of widths with respect to the whole weld seam index aperture detector longitudinal centre line synchronous horizontal side by side L=130mm or more that moved to left, the surveyed area that the width H that has shifted out the setting of main weld index aperture detector is 220mm, the surveyed area that the width H that enters the first weld seam index aperture detector setting is 220mm, the wavelength that fore side 1# light barrier transmitter 1C sends is a branch of infrared light of 875 nanometers, by band steel 3, blocked, 1# grating receiver 1D cannot receive infrared beam, 1# grating receiver 1D will send the signal that detects with steel 3 to control system, signal deciding the first weld seam index aperture detector detection signal that control system is sent according to 1# grating is effective, when band steel 3 weld seam index aperture K pass through the first weld seam index aperture detector, be detected, and issue a signal to acid and roll combination machine set control system and carry out, and main weld index aperture detector detection signal is blocked by band steel 3 always, no signal feedback.The wavelength that transmission side 2# light barrier transmitter 2C sends is a branch of infrared light of 875 nanometer, because band steel 3 does not block, 2# grating receiver 2D will receive infrared beam, 2# grating receiver 2D will send the signal that do not detect with steel 3 to control system, and signal deciding the second weld seam index aperture detector detection signal that control system is sent according to 2# grating is invalid.Equally, when band steel 3 surpasses 130mm to transmission side sideslip, be punched in the 20mm diameter index aperture K in the middle of steel 3 widths and moved to right more than 130mm, the surveyed area that the width H that has shifted out the setting of main weld index aperture detector is 220mm, the surveyed area that the width H that enters the second weld seam index aperture detector setting is 220mm, the wavelength that transmission side 2# light barrier transmitter 2C sends is a branch of infrared light of 875 nanometers, by band steel 3, blocked, 2# grating receiver 2D cannot receive infrared beam, 2# grating receiver 2D will send the signal that detects with steel 3 to control system, signal deciding the second weld seam index aperture detector detection signal that control system is sent according to 2# grating is effective, when band steel 3 weld seam index aperture K pass through the second weld seam index aperture detector, be detected, and issue a signal to acid and roll combination machine set control system and carry out, and main weld index aperture detector detection signal is blocked by band steel 3 always, no signal feedback.The wavelength that fore side 1# light barrier transmitter 1C sends is a branch of infrared light of 875 nanometer, because band steel 3 does not block, 1# grating receiver 1D will receive infrared beam, 1# grating receiver 1D will send the signal that do not detect with steel 3 to control system, and signal deciding the first weld seam index aperture detector detection signal that control system is sent according to 1# grating is invalid.Guaranteed that cold rolling acid rolls the normal production of associating unit.
The model that the present embodiment weld seam index aperture detector adopts German PAULY (Poly) company to produce is PP2441/220/R28 weld seam index aperture detector; The BT30-R-ST6X correlation grating (being also optoelectronic switch or photoelectric sensor) that grating adopts German TURCK (Tours gram) group company to produce.
The present invention adopts the weld seam index aperture detector of two gratings and three effective detection width 220mm or 308mm to be combined as required, increased the effective coverage that weld seam index aperture checkout gear detects, prevent the problem that directly adopts a 220mm or 308mm weld seam index aperture detector or the combination of a plurality of weld seam index aperture detector to bring, guaranteed no matter to be with how sideslip of steel 3 completely, can guarantee the accurate detection with steel 3 weld seams, guarantee that cold rolling acid rolls the normal production of associating unit.
The cavity detection series of products model that weld seam index aperture detector of the present invention and grating adopt German PAULY (Poly) company to produce is that PP2441 series is exclusively used in weld seam index aperture detector and the PP/PV/PU series grating that index aperture detects, and is ripe application product.The BT30 series grating (being also optoelectronic switch or photoelectric sensor) that grating also can adopt German TURCK (Tours gram) group company to produce.
Claims (1)
1. associating unit band steel weld seam index aperture checkout gear is rolled in improved cold rolling acid, it is characterized in that, comprise main weld index aperture detector, the first weld seam index aperture detector, the second weld seam index aperture detector, 1# grating and 2# grating, main weld index aperture detector consists of main transmitter and main receiver, the first weld seam index aperture detector consists of the first transmitter and the first receiver, the second weld seam index aperture detector consists of the second transmitter and the second receiver, 1# grating consists of 1# light barrier transmitter and 1# grating receiver, 2# grating consists of 2# light barrier transmitter and 2# grating receiver, main transmitter is positioned at the top that main receiver is corresponding, one side of main transmitter and main receiver is fore side, opposite side is transmission side, main transmitter and main receiver fore side from inside to outside successively correspondence the first transmitter and the first receiver are housed, 1# light barrier transmitter and 1# grating receiver, main transmitter and main receiver transmission side from inside to outside successively correspondence the second transmitter and the second receiver, 2# light barrier transmitter and 2# grating receiver are housed.
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Cited By (8)
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CN105251776A (en) * | 2014-07-16 | 2016-01-20 | 鞍钢股份有限公司 | Cold continuous rolling mill strip steel tracking processing method |
CN104748681B (en) * | 2015-03-26 | 2017-06-23 | 河北卓然睿和自动化科技有限公司 | One kind seeks gap sensor |
CN111982508A (en) * | 2020-09-28 | 2020-11-24 | 马鞍山钢铁股份有限公司 | Continuous-annealing line tooth type coupling fault detection device, system and method |
CN112222184A (en) * | 2020-10-09 | 2021-01-15 | 河钢乐亭钢铁有限公司 | Cold-rolled strip steel weld joint quality on-line detection device |
CN112620350A (en) * | 2020-12-16 | 2021-04-09 | 首钢智新迁安电磁材料有限公司 | Weld joint cutting method for oriented silicon steel coil |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105251776A (en) * | 2014-07-16 | 2016-01-20 | 鞍钢股份有限公司 | Cold continuous rolling mill strip steel tracking processing method |
CN104748681B (en) * | 2015-03-26 | 2017-06-23 | 河北卓然睿和自动化科技有限公司 | One kind seeks gap sensor |
CN111982508A (en) * | 2020-09-28 | 2020-11-24 | 马鞍山钢铁股份有限公司 | Continuous-annealing line tooth type coupling fault detection device, system and method |
CN111982508B (en) * | 2020-09-28 | 2022-06-21 | 马鞍山钢铁股份有限公司 | Continuous-annealing line tooth type coupling fault detection device, system and method |
CN112222184A (en) * | 2020-10-09 | 2021-01-15 | 河钢乐亭钢铁有限公司 | Cold-rolled strip steel weld joint quality on-line detection device |
CN114535318A (en) * | 2020-11-24 | 2022-05-27 | 宝山钢铁股份有限公司 | Strip steel welding seam position detection method of cold rolling continuous unit |
CN112620350A (en) * | 2020-12-16 | 2021-04-09 | 首钢智新迁安电磁材料有限公司 | Weld joint cutting method for oriented silicon steel coil |
CN112676356A (en) * | 2020-12-28 | 2021-04-20 | 包头钢铁(集团)有限责任公司 | Method for detecting weld seam open welding of withdrawal and straightening machine |
CN113134522A (en) * | 2021-04-20 | 2021-07-20 | 湖南泰嘉新材料科技股份有限公司 | Method and system for identifying weld seams and/or defects in steel strip used to produce saw blades |
CN113134522B (en) * | 2021-04-20 | 2024-06-07 | 湖南泰嘉新材料科技股份有限公司 | Method and system for identifying steel strip weld and/or defects for producing saw blades |
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