CN103010704A - Steel band running deviation correcting system and deviation correcting method - Google Patents
Steel band running deviation correcting system and deviation correcting method Download PDFInfo
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- CN103010704A CN103010704A CN2012105598582A CN201210559858A CN103010704A CN 103010704 A CN103010704 A CN 103010704A CN 2012105598582 A CN2012105598582 A CN 2012105598582A CN 201210559858 A CN201210559858 A CN 201210559858A CN 103010704 A CN103010704 A CN 103010704A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 10
- 210000004877 mucosa Anatomy 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention relates to a steel band running deviation correcting system and a deviation correcting method. The steel band running deviation correcting system comprises a laser emitter, a photosensitive sensor, a control center and a deviation correcting device, wherein the laser emitter, the photosensitive sensor and the deviation correcting device are respectively connected with the control center and are controlled to act through the control center, the photosensitive sensor is arranged at two sides of a steel band operating rail, the laser emitter emits laser beams to be irradiated onto the photosensitive sensor, when the light ray region received by the photosensitive sensor is changed because of the steel band movement deviation shielding, the photosensitive sensor sends out running deviation signals to the control center, the control center sends out corresponding regulation signals to the deviation correcting device according to the running deviation signals, and the deviation correcting device correspondingly acts to regulate the operation position of steel bands in real time.
Description
Technical field
The present invention relates to a kind of deviation-rectifying system and method thereof, relate in particular to a kind of deviation-rectifying system and method for correcting error thereof of steel belt deviation.
Background technology
Steel band deviation phenomenon usually occurs in transmission and production process, its result not only can cause steel band quality, decrease in efficiency, also can affect the normal operation of unit.Practice shows, how to adopt actv. sideslip detection technique, accurately measure running deviation value and with the running deviation value real-time Transmission to deviation-rectifying system, be the key point that solves deviation phenomenon.The method of existing steel belt deviation identification realizes by various sensors that mainly steel band survey sensor commonly used is the three types such as total inductance type, condenser, photo-electric at present.But at present inductance type, condenser, electro-optical pickoff are subject to the impact of external environment easily, and such as sour environment, it is not high enough that method of inspection detects the precision of running deviation value of steel band.
Summary of the invention
Described in view of above content, the present invention is necessary to provide a kind of deviation-rectifying system of little, steel belt deviation that precision is high affected by environment;
In addition, the present invention also is necessary to provide a kind of method for correcting error of steel belt deviation of said system.
A kind of deviation-rectifying system of steel belt deviation, comprise laser transimitter, the light-inductive device, control center and deviation correcting device, laser transimitter, light-inductive device and described deviation correcting device are connected with described control center respectively and by control center's control action, described light-inductive device is arranged at the both sides of described steel band orbit, described laser transimitter is launched laser beam irradiation to described light-inductive device, when the steel band motion excursion is blocked and when causing the light regional change that the light-inductive device receives, described light-inductive device sends offset signals to described control center, control center sends corresponding adjustment signal to described deviation correcting device according to offset signals, and described deviation correcting device correspondingly moves and adjusts in real time the run location of steel band.
Further, described laser transimitter is arranged at the steel band top, is used for launching two groups of parallel light beams, and described two groups of parallel beam distribution are in the both sides of steel band.
Further, the deviation-rectifying system of described steel belt deviation also comprises movable roller, and movable roller drives described steel band motion.
Further, described movable roller comprises a drive roll and two driven vollers.
Further, also comprise the high temperature protection cover, cover is established described light-inductive device.
Further, described deviation correcting device is the deviation correcting device that moves back and forth and moving direction is vertical with the steel band sense of motion.
Further, described laser transimitter is the He-Na laser transimitter.
The present invention also provides the method for correcting error of the sideslip deviation-rectifying system of above-described steel band, may further comprise the steps:
Adjust laser: open laser transimitter, so that laser transimitter is launched two groups of laser beams that are parallel to each other, the distance adjustment of these two groups of laser beams equates with the width of steel band;
The feedback offset signals: the Ear Mucosa Treated by He Ne Laser Irradiation of launching is to the light-inductive device, and when steel band generation sideslip, the lasing area that receives on the light-inductive device changes, light-inductive device feedback offset signals, and with offset signals to control center;
Send deviation correcting signal: described control center calculates corresponding running deviation value according to offset signals, and sends deviation correcting signal to deviation correcting device after receiving offset signals;
Carry out correction: after deviation correcting device received deviation correcting signal, this deviation correcting device was carried out the correction operation according to deviation correcting signal, finishes the process of once rectifying a deviation, and continued the process of next time rectifying a deviation.
Further, described feedback offset signals step comprises that also control center judges the size of described running deviation value, sends deviation correcting signal according to the size of running deviation value to deviation correcting device.
Further, also comprise in the described calculating running deviation value step and judge the offset signals step: after the offset signals of described control center reception, judge that whether offset signals is 0, if yes, then obtains offset signals again; If NO, the value of then judging offset signals is determined the direction of steel belt deviation for just or negative, reads the concrete numerical value of offset signals.
Compared to prior art, the deviation-rectifying system of steel belt deviation of the present invention, main laser transimitter, light-inductive device, control center, deviation correcting device just can carry out immediately monitoring to the sideslip of steel band, and it is simple in structure.Principle of work mainly is to utilize laser characteristics and the luminous principle of light-inductive device to combine, because the transmission of laser is difficult to be subject to the equally energy rectilinear propagation of impact of environment potential of hydrogen, humidity and temperature, only with when steel band generation sideslip, can stop laser propagation, this moment, the light-inductive device was owing to the illuminating area that receives can change, this moment, the light-inductive device produced different offset signals, by control center can be real-time the monitoring light-inductive device offset signals of coming, measure accurately the direction of running deviation value and the sideslip of steel band simultaneously.
Description of drawings
Fig. 1 is the deviation-rectifying system structural representation of steel belt deviation in the preferred embodiment of the present invention;
Fig. 2 is Laser Transmission scheme drawing in the preferred embodiment of the present invention;
Fig. 3 is the method for correcting error diagram of circuit of steel belt deviation in the preferred embodiment of the present invention.
The specific embodiment
Be further described in conjunction with method of inspection and the deviation-rectifying system of following specific embodiment to steel belt deviation of the present invention.Specific embodiment is for further describing the present invention, non-limiting protection scope of the present invention.
See also Fig. 1, a kind of deviation-rectifying system 100 of steel belt deviation comprises laser transimitter 10, light-inductive device 20, control center 30, movable roller 40 and deviation correcting device 50.Described laser transimitter 10, light-inductive device 20, movable roller 40 and deviation correcting device 50 all are connected with described control center 30 and by control center's 30 control actions.Described movable roller 40 drives described steel band 70 motions.Described light-inductive device 20 is arranged on the both sides of steel band 70 operation areas adjacently, receive the light that described laser transimitter 10 sends, when steel band 70 is offset the light regional change of the reception that causes light-inductive device 20, described light-inductive device 20 sends signal to described control center 30, control center 30 sends corresponding adjustment signal to described deviation correcting device 50 according to signal, described deviation correcting device 50 is correspondingly adjusted the service direction of steel band 70, and steel band 70 is corrected to corresponding operation area.
Described laser transimitter 10 is arranged at steel band 70 tops, and launches two groups of parallel light beams 11.Described two groups of parallel light beams 11 are distributed in the both sides of steel band 70.Distance between these two groups of laser beams 11 equates with the width of steel band 70.The perpendicular direction of described light beam 11 and steel band 70 motions, and be transmitted on the described light-inductive device 20.Because the divergence of laser beam 11 is minimum, approximately only has 0.001 radian, near parallel, so light beam 11 is along rectilinear propagation.In the present embodiment, described laser transimitter 10 is preferably the He-Na laser transimitter.
Described light-inductive device 20 is arranged at the below of steel 70 and from the both sides of steel band 70 and stretches out, be positioned at laser transimitter 10 under, the external part of both sides receives the light beam 11 that described laser transimitter 10 sends accordingly.The variation that this light-inductive device 20 is shown up according to its laser light that receives forms different deviation correcting signal, and sends this deviation correcting signal to described control center 30.In order to guarantee that light-inductive device 20 can form accurate deviation correcting signal; this light-inductive device 20 is carried out shade by a high temperature protection cover (not shown); what only keep laser injects the hole so that described light-inductive device 20 is not subject to peripheral other light impacts, but actv. improves the accuracy rate of deviation correcting signal.
See also Fig. 2, described light-inductive device 20 comprises photoconductive cell R1, R2, conventional, electric-resistance R3, R4.Resistance R 1, resistance R 2, resistance R 3 and resistance R 4 form electric bridge.Described resistance R 1 is for measuring original paper, and 2 temperature compensation functions of resistance R prevent temperature traverse and affect the accuracy rate of light-inductive device 20.When steel band not during sideslip, described bridge balance, when steel belt deviation, described electric bridge overbalance.
Described movable roller 40 can be a plurality of, is three in this preferred embodiment, can be a drive roll and two driven vollers, and drive roll rotates, and driven voller is followed drive roll and rotated, thereby described steel band 70 is driven.
Described deviation correcting device 50 is arranged on steel band 70 operation areas, is used for correcting the movement position of described steel band 70, and this deviation correcting device 50 can be on steel band 70 plane of movement, can move back and forth and moving direction vertical with steel band 70 sense of motions.
See also Fig. 3, below in conjunction with a kind of method for correcting error deviation-rectifying system 100 of the present invention is described further, this method for correcting error comprises the steps:
Start movable roller 40, allow movable roller drive steel band and move along the F1 direction, and control the velocity of rotation of described movable roller 40 by control center 30, and then control the travelling speed along the F1 direction of described steel band 70;
Calculate the maximum correction amount of deviation correcting device 50: steel band 70 is in transmission course, the distance L (mm of unit) that the axle center of deviation correcting device 50 is adjacent the axle center (figure is mark not) of movable roller 40 is known, gathers the yield limit E(units/kg f/mm that steel band 70 samples are measured steel band 70
2), the mm of mean thickness h(unit), tension force T(units/kg f) and width B (mm of unit).With intracardiac in distance L, yield limit E, mean thickness h, tension force T and the width B input control, calculate the maximum correction amount δ ' of deviation correcting device 50 by formula (1).
Adjust laser: open laser transimitter 10, so that laser transimitter 10 is launched two groups of laser beams that are parallel to each other 11, these two groups of laser beams 11 respectively, width B according to steel band 70, the distance adjustment of these two groups of laser beams is equated that with width B the width of every group of laser beam 11 slightly equals maximum correction amount.
The feedback offset signals: the laser meeting vertical transfer that laser transimitter 10 is launched when sideslip occurs steel band 70, has the part laser beam to be blocked by steel band 70, so the lasing area that receives on the light-inductive device 20 can reduce on light-inductive device 20.This moment, the light-inductive device 20 can produce offset signals D, and with offset signals D to control center 30.
70 transmission directions take direction F1 shown in Figure 1 as steel band, on F2 and the F1 same level face, two opposite senses vertical with F1 can be considered two offset directions; When sideslip does not occur in steel band 70, this moment bridge balance, the offset signals D of described light-inductive device 20 outputs is 0, when offset signals D is not 0, illustrates that sideslip has occured steel band 70, the electric bridge overbalance.In the present embodiment, when steel band 70 past F2 direction generation sideslip, described offset signals D is negative, and when steel band 70 past F3 direction generation sideslip, described offset signals D is positive number.
Calculate running deviation value: behind the described offset signals D of control center 30 by reception, judge that at first whether offset signals D is 0, if yes, then obtains offset signals D again.If NO, the value of then judging D is that positive number still is negative, determines the direction of steel band 70 sideslips.Read the concrete numerical value of offset signals D, calculate running deviation value δ with the corresponding time period of offset signals D by formula (2).
Wherein E is the yield limit of steel band 70, and unit is kgf/mm
2T is the tension force of steel band 70, units/kg f; B is the width of steel band 70, the mm of unit; L is the distance of the movable roller 40 that is adjacent of deviation correcting device 50, the mm of unit.
Produce deviation correcting signal: control center 30 judges that at first whether described running deviation value δ is greater than maximum running deviation value δ '; if; disconnected steel phenomenon then may appear; then need to shut down processing; if not; control center 30 sends deviation correcting signal according to the size of running deviation value to deviation correcting device 50, and described deviation correcting signal comprises that sideslip direction and running deviation value rectify a deviation.
Carry out correction, after deviation correcting device 50 receives the deviation correcting signal that control center 30 sends over, carry out correction according to sideslip direction and running deviation value, finish the process of once rectifying a deviation this moment.Continue after the correction to carry out the feedback offset signals, until whole rolling process is finished.
The deviation-rectifying system 100 of steel belt deviation of the present invention, main laser transimitter 10 Emission Lasers bundles 11, transmission is on light-inductive device 20; Light-inductive device 20 produces no offset signals according to the variation of the illuminating area that receives the laser beam of beating, and sends to control center 30; Control center 30 produces no deviation correcting signal according to offset signals, and sends to deviation correcting device 50; Deviation correcting device 50 carries out immediately monitoring according to deviation correcting signal to the sideslip of steel band 70, and it is simple in structure.Principle of work mainly is to utilize laser characteristics and the luminous principle of light-inductive device to combine, because the transmission of laser can be subject to the environment potential of hydrogen hardly, equally energy rectilinear propagation such as the impact of humidity or temperature etc., only with when sideslip occurs in steel band 70, can stop laser propagation, this moment, the light-inductive device was owing to the illuminating area that receives can change, this moment, the light-inductive device produced different offset signals D, by the offset signals D that control center's real-time monitoring light-inductive device 20 of 30 energy is come, measure accurately the direction of running deviation value and the sideslip of steel band 70 simultaneously.
Be appreciated that, described laser transimitter 10 can be respectively two with described light-inductive device 20, wherein a described laser transimitter 10 cooperates described light-inductive device 20 to be arranged on a side of steel band 70 operation areas, and another described laser transimitter 10 cooperates described light-inductive device 20 to be arranged on the opposite side of steel band 70 operation areas.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the deviation-rectifying system of a steel belt deviation (100), be used to steel band (70) in transmission course, to rectify a deviation, it is characterized in that: comprise laser transimitter (10), light-inductive device (20), control center (30), and deviation correcting device (50), described laser transimitter (10), light-inductive device (20) and described deviation correcting device (50) are connected with described control center (30) respectively and by control center (30) control action, described light-inductive device (20) is arranged at the both sides of described steel band (70) orbit, described laser transimitter (10) is launched laser beam irradiation to described light-inductive device (20), when steel band (70) motion excursion is blocked and when causing the light regional change that light-inductive device (20) receives, described light-inductive device (20) sends offset signals to described control center (30), described control center (30) sends corresponding adjustment signal to described deviation correcting device (50) according to offset signals, and described deviation correcting device (50) correspondingly moves and adjusts in real time the run location of steel band (70).
2. the deviation-rectifying system of steel belt deviation according to claim 1 (100), it is characterized in that: described laser transimitter (10) is arranged at steel band (70) top, be used for launching two groups of parallel light beams (11), described two groups of parallel light beams (11) are distributed in the both sides of steel band (70).
3. the deviation-rectifying system of steel belt deviation according to claim 1 (100), it is characterized in that: the deviation-rectifying system of described steel belt deviation (100) also comprises movable roller (40), described movable roller (40) drives described steel band (70) motion.
4. the deviation-rectifying system of steel belt deviation according to claim 3 (100), it is characterized in that: described movable roller (40) comprises a drive roll and two driven vollers.
5. the deviation-rectifying system of steel belt deviation according to claim 1 (100) is characterized in that: also comprise the high temperature protection cover, cover and establish described light-inductive device (20).
6. the deviation-rectifying system of steel belt deviation according to claim 1 (100), it is characterized in that: described deviation correcting device (50) is deviation correcting device (50) that move back and forth and that moving direction is vertical with steel band (70) sense of motion.
7. the deviation-rectifying system of steel belt deviation according to claim 1 (100), it is characterized in that: described laser transimitter (10) is the He-Na laser transimitter.
8. method for correcting error such as the sideslip deviation-rectifying system of each described steel band of claim 1 to 7 is characterized in that: may further comprise the steps:
Adjust laser: open laser transimitter (10), so that laser transimitter (10) is launched two groups of laser beams that are parallel to each other (11), the distance adjustment of these two groups of laser beams (11) equates with the width of steel band (70);
The feedback offset signals: the Ear Mucosa Treated by He Ne Laser Irradiation of launching is to light-inductive device (20), when sideslip occurs in steel band (70), the upper lasing area that receives of light-inductive device (20) changes, and light-inductive device (20) produces offset signals, and offset signals is fed back to control center (30);
Send deviation correcting signal: described control center (30) calculates corresponding running deviation value according to offset signals, and sends deviation correcting signal to deviation correcting device (50) after receiving offset signals;
Carry out correction: after deviation correcting device (50) receives deviation correcting signal, carry out the correction operation according to deviation correcting signal, finish the process of once rectifying a deviation, and continue the process of next time rectifying a deviation.
9. the method for correcting error of steel belt deviation according to claim 8, it is characterized in that: in the described feedback offset signals step, comprise that also control (30) center judges the size of described running deviation value, send deviation correcting signal according to the size of running deviation value to deviation correcting device (50).
10. the method for correcting error of steel belt deviation according to claim 8, it is characterized in that: described transmission deviation correcting signal step also comprises: after the offset signals that described control center (30) receives, judge whether offset signals is 0, if then again obtain offset signals; If not, the value of then judging offset signals is determined the direction of steel band (70) sideslip for just or negative, reads the concrete numerical value of offset signals.
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