CN115283458A - Coiling side guide early warning control method - Google Patents

Coiling side guide early warning control method Download PDF

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Publication number
CN115283458A
CN115283458A CN202210998065.4A CN202210998065A CN115283458A CN 115283458 A CN115283458 A CN 115283458A CN 202210998065 A CN202210998065 A CN 202210998065A CN 115283458 A CN115283458 A CN 115283458A
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CN
China
Prior art keywords
side guide
value
delta
strip steel
centeract
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Pending
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CN202210998065.4A
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Chinese (zh)
Inventor
周云
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Maanshan Iron and Steel Co Ltd
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Maanshan Iron and Steel Co Ltd
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Priority to CN202210998065.4A priority Critical patent/CN115283458A/en
Publication of CN115283458A publication Critical patent/CN115283458A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

The invention discloses a coiling side guide early warning control method, and relates to a production coiling process of hot rolled strip steel. In order to effectively eliminate the occurrence of the guide accidents of the camber and the ultra-wide impact on the head of the hot-rolled strip steel, the winding side guide early warning control method provided by the invention has the advantages that through the measurement, calculation and adjustment of the numerical values of the ultra-wide strip steel and the camber of the strip steel, a deviation value is given according to an empirical formula, detection control logic judgment is carried out according to the sum of the deviation values, the short stroke triggering of the side guide is realized, the waiting position is recovered after all inlet guides carry out short stroke action according to logic to wind a load, so that the head of the strip steel with the camber and the ultra-wide strip steel can smoothly enter a mandrel of a winding machine to be wound through a winding guide area, and the accidents of impact folding and blocking guide steel piling are eliminated.

Description

Coiling side guide early warning control method
Technical Field
The invention relates to a production coiling process of hot rolled strip steel, in particular to a coiling side guide early warning control method.
Background
The hot continuous rolling production process of the plate and strip steel comprises four areas of a heating furnace, a roughing mill, a finishing mill and a coiler, the normal hot rolling production process comprises the steps of heating a plate blank by the heating furnace, then reversibly rolling the plate blank by the roughing mill set with two racks in a reciprocating way for different passes, continuously rolling the plate blank by the finishing mill set with seven racks to form the strip steel, performing laminar cooling on the strip steel, forcibly centering the strip steel by a coiling front guide, guiding the strip steel by upper and lower pinch rolls to enter a winding drum of an underground coiler to be coiled, and finally conveying the strip steel to a conveying line by an uncoiling trolley to enter a finished product warehouse.
After finish rolling, the head of the strip steel often has camber due to uneven finish rolling deformation to impact a coiling guide to cause silting and folding scrap steel, as shown in fig. 1, the faltering and folding scrap steel refers to a severe steel piling accident that the strip steel cannot enter a clamping roller of a coiling machine through the forced centering and guiding action of the coiling front side guide and is deposited at the side guide. The head of the strip steel exceeds the preset + alpha compensation value of the coiling side guide due to the fact that the width of the incoming material is out of limit or the free width is too large, the ultra-wide head of the strip steel is blocked on the coiling guide to form folding scrap steel, and as shown in figure 2, the strip steel cannot enter a clamping roller of a coiling machine through the forced centering guide effect of the coiling front side guide, but is folded at the side guide to form a malignant steel piling accident.
Chinese patent publication No. CN111940542A proposes a method and an apparatus for coiling a strip steel, and discloses a method for eliminating the occurrence of a folding mark in a coiling area by a hot rolling finish rolling camber. The camber is the maximum distance between the side edge of the steel strip and a straight line connecting two end points of the measuring part, namely the deviation between the edge of one side of the steel strip and the straight line, if the camber at the head of the steel strip is too large (for example, more than 60 mm), the camber will generate local tilting after being corrected by a side guide plate at a coiling inlet, and then the steel strip is rolled by a pinch roll, thus easily causing the folding defect of the steel strip. The invention mainly controls the pressure and position mode of the pinch roll and the short stroke control of the coiling front side guide, thereby reducing the probability of the folding mark generated by the pinch roll which is controlled by the folding and biting position after the sickle at the head of the strip steel is forcibly centered by the side guide. However, the patent does not relate to the influence and control of camber, ultra-wide and guide impact and jamming of scrap steel.
Chinese patent publication No. CN109127733A proposes a method for correcting the skew of a side guide plate of a coiler, and discloses a method for correcting the camber of the head of a strip steel in real time so as to enable the camber to smoothly enter a 2# coiler, namely, a computer system judges the camber of the head of the strip steel at a laminar outlet, calculates the action quantity of a 1# side guide plate in real time according to the camber offset, performs single-side correction on the 1# side guide plate, and avoids scrap steel being blocked at the inlet of the 2# side guide plate when the camber of the head of the strip steel is bent. However, the patent does not relate to the influence and control of the scrap steel during the simultaneous action of the camber and the super-width and the guide action, does not clarify and control the calculation of the compound action of the camber and the super-width, and does not relate to the control logic of the coiling machine 3 #.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention discloses a coiling side guide early warning control method which can effectively eliminate the occurrence of hot rolled strip head camber and ultra-wide impact coiling inlet guide accidents.
In order to achieve the purpose, the invention provides the following technical scheme:
a coiling side guide early warning control method comprises the following steps:
s1: ultra-wide adjustment: before the strip head reaches the 4 th group of the laminar flow roller path, the PLC collects the data of a width gauge at the outlet of the existing finishing mill and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, a deviation value delta X is given to the PLC, and the deviation value delta X is added to the position of the newly added short-stroke opening degree compensation value of the side guide plate and used for automatic adjustment of the preset position;
s2: adjusting camber: before the strip head reaches the 4 th group of the laminar flow roller path, the PLC acquires the data of the multifunctional instrument at the outlet of the existing finishing mill and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, and a deviation value delta Y is given to the PLC, added to the position of the short stroke opening degree compensation value of the newly added side guide plate and used for automatic adjustment of a preset position;
s3: ultra wide and sickle bay adjustments: the measured data value is determined to be 30 meters according to the actual field experience, and after the head reaches the laminar flow width measuring instrument, the absolute value | CL | of the deviation of the 1m length of the head based on the 0 line is taken;
s301: when the superwide part and the sickle bend occur simultaneously, the PLC adds the sum of the delta X and the delta Y into a set position of the short-stroke opening degree compensation value of the side guide plate for automatic adjustment of a preset position;
s302: when the layer cold width measurement shows the camber, the PLC needs to judge the | CL | and assign the judgment result to be added to the set position of the side guide plate short-stroke opening degree compensation value for automatic adjustment of the preset position;
s4: program trigger logic: the first short stroke trigger is established in the load of the coiling pinch roll, the second short stroke trigger is established in the load of the mandrel, the first short stroke is required to be not actuated, and the short stroke opening degree compensation value is continuously kept until the wrapper roll is opened to directly trigger the second short stroke;
s401: judging the condition once before triggering the second short stroke, and taking the result as a side guide opening degree control target after triggering the second short stroke;
s402: and all the inlet guides and guards in front of the standby recoiling machine execute short-stroke action according to the logic, and the standby position is recovered after the load is recoiled.
Further, the operation formula of Δ X in S1 is W avg -W Target CL is an operation formula of = Δ X, Δ Y in S2 max -CL min = | Δ Y |, where W avg Is the average width value of the distance L of the head of the strip steel, W Target Is a width target value of the distance L of the strip head, CL max The maximum value of the center line deviation of the L distance of the strip steel head, CL min The minimum deviation value of the center line of the distance L of the strip steel head is obtained.
Further, the specific trigger logic in S301 is 60mm < Δ X + Δ Y ≦ 80mm, ADD is assigned: 200mm and 80mm < Δ X + Δ Y, ADD assigned: 400mm, S302 is that the specific trigger logic is 50mm < | CL | < 80mm, and the value is ADD:150mm and 80mm < | CL |, values assigned ADD:300mm.
Further, the two triggering logics do not need to trigger the layer cold camber detection control logic if 'delta X + delta Y' is triggered, if 'delta X + delta Y' is not triggered, the judgment needs to be carried out in time according to the layer cold width measurement display camber | CL | and then the preset position correction of the side guide plate short stroke opening degree compensation value is carried out, and the two controls are not accumulated.
Further, the condition judgment referred to in S401 requires that the logical side guide target of the original program is changed from "the hot-state width value of the strip steel at the finish rolling outlet + the added value issued by L2" to "the hot-state width target value of the strip steel + Δ X + the value issued by L2", and is used for the side guide to adjust the control effect according to the actual width condition of the strip steel.
Compared with the prior art, the invention has the beneficial effects that:
the coiling side guide early warning control method comprises the steps of measuring, calculating and adjusting strip steel ultra-wide and strip steel camber values, giving out deviation values according to an empirical formula, carrying out detection control logic judgment according to the sum of the deviation values, realizing short stroke triggering of the side guide, and recovering waiting positions after all inlet guides carry out short stroke actions according to logic to coil loads, so that the head of the strip steel with the camber and the ultra-wide can smoothly enter a coiling machine mandrel to be coiled through a coiling guide area, the steel piling accidents of collision folding and blocking guide are eliminated, the productivity of blocked scrap steel is reduced, the production cost is reduced, the economic benefit is improved, the frequency of waste steel treatment is reduced, the abnormal operation risk of personnel is reduced, and the labor intensity is reduced.
Drawings
FIG. 1 is a schematic view of a steel strip head camber impact coiling guide of the present invention;
FIG. 2 is a schematic view of the ultra-wide clamp at the head of the strip steel of the present invention in the middle of the coiling guide;
FIG. 3 is a diagram illustrating the operation of the deviation Δ X according to the present invention;
FIG. 4 is a schematic diagram of an ultra-wide preset position adjustment of the present invention;
FIG. 5 is a diagram illustrating the operation of the deviation Δ Y according to the present invention;
FIG. 6 is a schematic view of the preset camber position adjustment of the present invention;
FIG. 7 is a schematic view of the adjustment of the preset positions of the ultra-wide and sickle curves of the present invention;
FIG. 8 is a flow chart of a coiling side guide early warning control method of the present invention.
Fig. 9 is a graph of a process curve of material number H20180232L in the first embodiment of the present invention;
fig. 10 is a graph of the process curve of material number H20180233L in the second embodiment of the present invention.
In the figure: 1. strip steel; 2. and (4) guiding and guarding.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Referring to fig. 3 to 8, a winding side guide early warning control method includes the following steps:
s1: ultra-wide adjustment: before the belt head reaches ROT4 (group 4 of a laminar flow raceway), the PLC acquires the data of a width gauge at the outlet of the existing FM (finishing mill) and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, and a deviation value delta X is given to the PLC, added to the position of a newly added Front close (short stroke opening compensation value) of a side guide plate and used for automatic adjustment of a preset position;
s2: adjusting camber: before the belt head reaches ROT4 (group 4 of a laminar flow raceway), the PLC acquires the data of a multifunctional instrument at the outlet of the existing FM (finishing mill) and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, and a deviation value delta Y is given to the PLC, added to the position of a newly added side guide plate Front close (short stroke opening degree compensation value) and used for automatic adjustment of a preset position;
s3: ultra wide and sickle bay adjustments: the measured data value is determined to be 30 meters according to the actual field experience, and after the head reaches the laminar flow width measuring instrument, the absolute value | CL | of the deviation of the 1m length of the head based on the 0 line is taken;
s301: when the super-wide part and the sickle bend appear at the same time, the PLC adds the sum of the delta X and the delta Y into a set position of a side guide plate Front close (a short stroke opening compensation value) for automatic adjustment of a preset position;
s302: when the layer cold width measurement shows the camber, the PLC needs to judge the | CL | and assign the judgment result to be added to a set position of a side guide plate Front close (short stroke opening degree compensation value) for automatic adjustment of a preset position;
s4: program trigger logic: the first short stroke is triggered at PR LOAD ON (coiling pinch roll LOAD is established), the second short stroke is triggered at MD LOAD ON (mandrel LOAD is established), the first short stroke is required to be not operated, and Front close (short stroke opening degree compensation value) is continuously kept until WR OPEN (wrapper roll opening) directly triggers the second short stroke;
s401: a condition judgment is needed before the second short stroke trigger, and the result is used as a side guide opening degree control target after the second short stroke trigger;
s402: and all the inlet guides and guards in front of the standby recoiling machine execute short-stroke actions according to the logic, and the waiting positions are recovered after the load is recoiled.
Referring to fig. 9, material number: H20180232L.
According to the process curve chart, obtaining a set output value of the side guide at the head of the strip steel:
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the program calculates the results:
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19:49:37.274，CActMin＝22，CActMax＝40，X＝2，Y＝18，X+Y＝47，Z＝0
the results calculated by the above procedure show that the implementation effect of the embodiment is as follows:
the output value of the program is 0,X =29, Y =18, X + Y =47 < 60, the program is executed correctly, and the coiling of the coiled steel head is successful normally.
Example two
Referring to fig. 3-8, a coiling side guide early warning control method includes the following steps:
s1: ultra-wide adjustment: before the belt head reaches ROT4 (group 4 of laminar flow raceways), the PLC collects the data of the width gauge at the outlet of the existing FM (finishing mill) and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, a deviation value delta X is given to the PLC, and the deviation value delta X is added to the position of a newly added side guide plate Front close (short stroke opening degree compensation value) and is used for automatic adjustment of a preset position;
s2: adjusting camber: before the belt head reaches ROT4 (group 4 of a laminar flow raceway), the PLC acquires the data of a multifunctional instrument at the outlet of the existing FM (finishing mill) and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, and a deviation value delta Y is given to the PLC, added to the position of a newly added side guide plate Front close (short stroke opening degree compensation value) and used for automatic adjustment of a preset position;
s3: ultra wide and sickle bay adjustments: the measured data value is determined to be 30 meters according to the actual field experience, and after the head reaches the laminar flow width measuring instrument, the absolute value | CL | of the deviation of the 1m length of the head based on the 0 line is taken;
s301: when the superwide part and the sickle bend appear at the same time, the PLC adds the sum of the delta X and the delta Y into a set position of a side guide plate Front close (short stroke opening degree compensation value) for automatic adjustment of a preset position;
s302: when the layer cold width measurement shows the camber, the PLC needs to judge the | CL | and assign the judgment result to be added to a set position of a side guide plate Front close (short stroke opening degree compensation value) for automatic adjustment of a preset position;
s4: program trigger logic: the first short stroke is triggered at PR LOAD ON (coiling pinch roll LOAD is established), the second short stroke is triggered at MD LOAD ON (mandrel LOAD is established), the first short stroke is required to be not operated, and Front close (short stroke opening degree compensation value) is continuously kept until WR OPEN (wrapper roll opening) directly triggers the second short stroke;
s401: judging the condition once before triggering the second short stroke, and taking the result as a side guide opening degree control target after triggering the second short stroke;
s402: and all the inlet guides and guards in front of the standby recoiling machine execute short-stroke actions according to the logic, and the waiting positions are recovered after the load is recoiled.
Referring to fig. 10, material No.: H20180233L.
According to the process curve chart, obtaining a set output value of the side guide at the head of the strip steel:
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2021-12-1719:51:14.929，Act＝1495，CenterAct＝25，Settings＝1686
2021-12-1719:51:14.991，Act＝1495，CenterAct＝21，Settings＝1686
2021-12-1719:51:15.054，Act＝1495，CenterAct＝21，Settings＝1686
2021-12-1719:51:15.116，Act＝1495，CenterAct＝17，Settings＝1686
2021-12-1719:51:15.179，Act＝1495，CenterAct＝17，Settings＝1686
2021-12-1719:51:15.241，Act＝1495，CenterAct＝21，Settings＝1686
2021-12-1719:51:15.304，Act＝1495，CenterAct＝21，Settings＝1686
2021-12-1719:51:15.366，Act＝1495，CenterAct＝22，Settings＝1686
2021-12-1719:51:15.429，Act＝1496，CenterAct＝23，Settings＝1686
2021-12-1719:51:15.491，Act＝1496，CenterAct＝23，Settings＝1686
2021-12-1719:51:15.554，Act＝1496，CenterAct＝20，Settings＝1686
2021-12-1719:51:15.616，Act＝1496，CenterAct＝20，Settings＝1686
2021-12-1719:51:15.679，Act＝1496，CenterAct＝28，Settings＝1686
2021-12-1719:51:15.741，Act＝1496，CenterAct＝28，Settings＝1686
2021-12-1719:51:15.804，Act＝1496，CenterAct＝27，Settings＝1686
2021-12-1719:51:15.867，Act＝1496，CenterAct＝25，Settings＝1686
2021-12-1719:51:15.929，Act＝1496，CenterAct＝25，Settings＝1686
the program calculates the results:
2020-12-17
19:51:16.382，CActMin＝-71，CActMax＝31，X＝19，Y＝102，X+Y＝121，Z＝400
the results calculated by the above procedure show that the implementation effect of the embodiment is as follows:
the program output value is 400,X =19, Y =102, X + Y =121, Z =400 > 80, the program is executed correctly, the single side of the coiling guide and guard is opened by 200mm, and the coiling of the coiled steel head is successful normally.
In summary, the following steps: the coiling side guide early warning control method comprises the steps of measuring, calculating and adjusting strip steel ultra-wide and strip steel camber values, giving out deviation values according to an empirical formula, carrying out detection control logic judgment according to the sum of the deviation values, realizing short stroke triggering of the side guide, and recovering waiting positions after all inlet guides carry out short stroke actions according to logic to coil loads, so that the head of the strip steel with the camber and the ultra-wide can smoothly enter a coiling machine mandrel to be coiled through a coiling guide area, the steel piling accidents of collision folding and blocking guide are eliminated, the productivity of blocked scrap steel is reduced, the production cost is reduced, the economic benefit is improved, the frequency of waste steel treatment is reduced, the abnormal operation risk of personnel is reduced, and the labor intensity is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (5)

1. A coiling side guide early warning control method is characterized by comprising the following steps: the early warning control method comprises the following steps:
s1: ultra-wide adjustment: before the strip head reaches the 4 th group of the laminar flow roller path, the PLC collects the data of a width gauge at the outlet of the existing finishing mill and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, a deviation value delta X is given to the PLC, and the deviation value delta X is added to the position of the newly added short-stroke opening degree compensation value of the side guide plate and used for automatic adjustment of the preset position;
s2: adjusting camber: before the strip head reaches the 4 th group of the laminar flow roller path, the PLC collects the data of the multifunctional instrument at the outlet of the existing finishing mill and sends the data to the instrument PC in real time, the instrument PC performs operation processing on the data, a deviation value delta Y is given to the PLC, and the deviation value delta Y is added to the newly added position of the short-stroke opening degree compensation value of the side guide plate and used for automatic adjustment of the preset position;
s3: ultra wide and sickle bay adjustment: the value of the measured data is determined to be 30 meters according to the actual experience of the field, and after the head reaches a laminar flow width meter, the absolute value | CL | of the deviation of the 1m length of the head based on the 0 line is taken;
s301: when the superwide part and the sickle bend occur simultaneously, the PLC adds the sum of the delta X and the delta Y into a set position of the short-stroke opening degree compensation value of the side guide plate for automatic adjustment of a preset position;
s302: when the layer cold width measurement shows the camber, the PLC needs to judge the | CL | and assign the judgment result to be added to the set position of the side guide plate short-stroke opening degree compensation value for automatic adjustment of the preset position;
s4: program trigger logic: the first short stroke trigger is established at the load of the reeling pinch roll, the second short stroke trigger is established at the load of the mandrel, the first short stroke is required to be not operated, and the short stroke opening degree compensation value is continuously kept until the wrapper roll is opened to directly trigger the second short stroke;
s401: a condition judgment is needed before the second short stroke trigger, and the result is used as a side guide opening degree control target after the second short stroke trigger;
s402: and all the inlet guides and guards in front of the standby recoiling machine execute short-stroke actions according to the logic, and the waiting positions are recovered after the load is recoiled.
2. The reeling side guide early warning control method of claim 1, wherein: the operational formula of delta X in S1 is W avg -W Target The formula of operation of Δ Y in = Δ X, S2 is CL max -CL min = | Δ Y |, where W avg Is the average width value of the distance L of the head of the strip steel, W Target Is the target width value of the L distance of the strip head, CL max The maximum value of the center line deviation of the L distance of the strip steel head, CL min The minimum deviation value of the center line of the distance L of the strip steel head is obtained.
3. The reeling side guide and guard early warning control method according to claim 1, characterized in that: the specific trigger logic in S301 is that 60mm < delta X + delta Y is less than or equal to 80mm, and ADD is assigned: 200mm and 80mm < Δ X + Δ Y, assigned ADD:400mm, the specific trigger logic in S302 is 50mm < | CL | ≦ 80mm, and the value is ADD:150mm and 80mm < | CL |, values assigned ADD:300mm.
4. The reeling side guide and guard early warning control method according to claim 3, characterized in that: according to the two trigger logics, if the 'delta X + delta Y' is triggered, the layer cold camber detection control logic does not need to be triggered, if the 'delta X + delta Y' is not triggered, the layer cold camber | CL | needs to be judged in time according to the layer cold width measurement display, then the preset position correction of the side guide plate short-stroke opening degree compensation value is carried out, and the two controls are not accumulated.
5. The reeling side guide early warning control method of claim 1, wherein: the condition judgment involved in the S401 requires that the logic side guide target of the original program is changed from 'the hot-state width value of the strip steel at the finish rolling outlet + the issued additional value of L2' into 'the hot-state width target value of the strip steel + the issued value of delta X + L2', and the condition judgment is used for adjusting the control effect of the side guide according to the actual width condition of the strip steel.
CN202210998065.4A 2022-08-19 2022-08-19 Coiling side guide early warning control method Pending CN115283458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210998065.4A CN115283458A (en) 2022-08-19 2022-08-19 Coiling side guide early warning control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210998065.4A CN115283458A (en) 2022-08-19 2022-08-19 Coiling side guide early warning control method

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Publication Number Publication Date
CN115283458A true CN115283458A (en) 2022-11-04

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Country Link
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