CN101786106B - Device and method for controlling shape - Google Patents
Device and method for controlling shape Download PDFInfo
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- CN101786106B CN101786106B CN2010101194792A CN201010119479A CN101786106B CN 101786106 B CN101786106 B CN 101786106B CN 2010101194792 A CN2010101194792 A CN 2010101194792A CN 201010119479 A CN201010119479 A CN 201010119479A CN 101786106 B CN101786106 B CN 101786106B
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- roller
- calender rolls
- intermediate calender
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- 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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/18—Rolls or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/04—Flatness
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Abstract
To perform high-accuracy shape control by shifting first intermediate rolls to proper positions and adding allowance to the deflection of AS-U rolls without being depended on frictional resistance even when rolling speed is slow. A shape controlling device 2 performs the shape control of a material (15) to be rolled while controlling the deflection of the AS-U rolls (11) and the shifting positions of the first intermediate rolls (13) and controlling the pressing force to work rolls (14). At this time, the shifting position of the first intermediate roll is corrected on the basis of the actual results of the shape of the material to be rolled, the rolling speed, the deflection of the AS-U roll (11) and the shifting position of the first intermediate roll (13) with the position correcting device (3) for the first intermediate roll. In this way, the shape control can be performed because the the first intermediate roll 13 is in the proper position even when the deflection of the AS-U rolls 11 reaches a limited value.; A past actual result data is held with the position setting device (4) of the first intermediate roll and the tapered position of the second intermediate rolls is set in a desired position on the basis of the actual data of rolling.
Description
Technical field
The present invention relates to control the shape control apparatus and the shape control method of the shape that is rolled material.
Background technology
As the milling train of the rolling control metal material of high-quality, know sendzimir mill.So sendzimir mill is suitable for flat cold-rolled sheet, and has proposed the different shape control method.For example; Setting through detect shape model and target shape pattern poor, and the similar ratio of benchmark shape model obtain the neutral net of the operational ton of transmission device; Through this neutral net shape is carried out pattern-recognition; Adopt the control law of regulation to carry out fuzzy control, control the AS-U roller and first intermediate calender rolls thus, carry out the shape control of thin plate.In addition, when carrying out so shape control, need to set the control law (for example, with reference to patent documentation 1) that certain shape model is carried out shape control.
In addition; Just can't be (for example with the special shape model of control law performance; Precipitous shape model) control method is obtained the fuzzy quantity of each steepness pattern, and confirms the shift position of the deflection and first intermediate calender rolls of AS-U roller through the fuzzy reasoning of inferring according to this fuzzy quantity; Thereby carry out desirable shape control (for example, with reference to patent documentation 2).So, sendzimir mill in the past all makes up the deflection and first intermediate calender rolls of AS-U roller when adopting any control method shift position is used to revise the suitable control of the true form of thin plate, realizes the management of thickness of slab and prevents the plate wave inception.In addition, carry out shape control in the whole zone of the plate width direction of thin plate, only carry out the shape control of the plate end of thin plate with first intermediate calender rolls with the AS-U roller.
Patent documentation 1: specially permit No. 2804161 communique (with reference to 3 pages～4 pages, and Fig. 1～Fig. 5)
Patent documentation 2: specially permit No. 2668845 communique (with reference to paragraph number 0017～0022)
As stated, comprise the sendzimir mill in the past of patent documentation 1,2,, need to use the roller convex surface adjustment (that is the adjustment of deflection) of AS-U roller and the shift position control of first intermediate calender rolls as the transmission device of the shape control of carrying out thin plate., the control of shift position that first intermediate calender rolls is carried out is owing to make first intermediate calender rolls move along plate width direction in thin plate rolling, so under the slow situation of mill speed, can not make the displacement of first intermediate calender rolls sometimes.In other words, because if mill speed slowly at first intermediate calender rolls then also with low speed rotation, so the frictional resistance of the moving direction that between first intermediate calender rolls and working roll, produces increases.Therefore, when under the slow situation of mill speed, making the displacement of the first intermediate calender rolls broad ways, need bigger power.Consequently; Be not displaced under the state of suitable position at first intermediate calender rolls (second roller); Only control with the roller convex surface adjustment (adjustment of deflection) of AS-U roller, the deflection of AS-U roller (first roller) does not have surplus, thereby is difficult to realize high-precision shape control.
Summary of the invention
The present invention proposes in view of above problem, even its purpose is to provide a kind of shape control apparatus and shape control method that when mill speed is slow, also can the deflection of first roller be suppressed at suitable scope.
Shape control apparatus of the present invention is invented for reaching said purpose, and it possesses: first roller, it changes deflection, make to and to be rolled the pressing force that a plurality of rollers between the material apply variable; Second roller, the change in location that it makes the taper that is formed at self, make to and to be rolled the pressing force that the single or a plurality of rollers between the material apply variable; The 3rd roller; It is at least through the pressing force of first roller and the pressing force of second roller; The said material that is rolled is carried out shape control, wherein, possess roller position correction portion; The true form that is rolled material, mill speed, the deflection of first roller and the conical position of second roller that this roller position correction portion realizes based on the pressing force of the pressing force through first roller and second roller are revised the conical position of second roller.
According to so constituting,, can make the deflection of first roller and the shift position of second roller have suitable relation through making the displacement of second roller by the strong hand according to the deflection of first roller and the shape of plate end.Thus, even when mill speed is slow, also can the deflection of first roller be suppressed at suitable scope, can carry out shape control to being rolled material rightly.
In addition; When the shape that the displacement control of the conical position of deflection control and second roller of shape control apparatus through first roller is rolled material is controlled; Even the deflection of first roller reaches limits value, second roller also can make conical position change by the strong hand and carry out completion.In addition,,, then also when the mill speed that second roller can be shifted, make second roller be displaced to the position of hope, the deflection of completion first roller in shortage if the deflection of first roller is not enough even be that low speed, second roller are shifted at need in mill speed.Thus, shape control apparatus can be realized good shape in whole speed district.
(invention effect)
According to the present invention, even a kind of shape control apparatus and shape control method that when mill speed is slow, also can the deflection of first roller be suppressed at suitable scope can be provided.
Description of drawings
Fig. 1 is the pie graph that the shape of the sendzimir mill of expression first embodiment of the present invention is controlled system.
Fig. 2 is the figure that the inside of the first intermediate calender rolls position correcting apparatus 3 of shape control system of the sendzimir mill of presentation graphs 1 constitutes.
Fig. 3 is the notion pie graph of common sendzimir mill, (a) is side view, (b) is front view.
Fig. 4 is the concept map of the shape control method of expression sendzimir mill, (a) is the shape control method of AS-U roller, (b) is the shape control method of first intermediate calender rolls.
Fig. 5 is the concept map of shape control method of shape control range of mill speed and 2 transmission devices of expression sendzimir mill.
Fig. 6 be the expression sendzimir mill shape control method one the example concept map; (a) be formation and the performance plot that the state of form variations is arranged; (b) be form variations to be controlled to be the formation and the performance plot of minimum state, (c) be formation and the performance plot that form variations is controlled to be minimum state through AS-U roll shape control part 21 through first intermediate calender rolls displacement shape control unit 22.
Fig. 7 is the pie graph of 6 roller mills of second embodiment of the present invention.
Fig. 8 is the pie graph that the shape of 6 roller mills of expression second embodiment of the present invention is controlled system.
Among the figure: 1-sendzimir mill, 2-shape control apparatus, the 3-first intermediate calender rolls position correcting apparatus (roller position correction portion), the 4-first intermediate calender rolls position setting device (roll position setting portion); 5-SHAPE DETECTION device, 6-target shape setting apparatus, 11-AS-U roller (first roller), 12-second intermediate calender rolls; 13-first intermediate calender rolls (second roller), 14-working roll (the 3rd roller), 15-rolled stock, 16-backing roll; 17-is cut apart roller, 18-saddletree, 21-AS-U roll shape control part, 22-first intermediate calender rolls displacement shape control unit; The 30-first intermediate calender rolls position very denys detection unit (the roller position very denys a detection unit), 31-AS-U roller target shape correction portion (the first roller target shape correction portion), the 32-first intermediate calender rolls target shape correction portion (the second roller target shape correction portion), the 33-first intermediate calender rolls shift position correction portion (the second roller position correction portion); 34-AS-U roller position correction portion (the first roller position correction portion), 50-6 roller mill, 51-top backing up roll, 52-lower support roller; The last intermediate calender rolls of 53-, intermediate calender rolls under the 54-, 55-top working roll; The 56-bottom working roll, 61-shape control apparatus, 61a-intermediate calender rolls displacement shape control unit; 61b-working roller bending forcing press shape control unit, 62-intermediate calender rolls position correcting apparatus, 63-intermediate calender rolls position setting device.
The specific embodiment
Below, with reference to accompanying drawing, enumerate the shape control apparatus that is used for the best mode (below be called " embodiment ") of embodiment of the present invention as the sendzimir mill explanation of preference.Sendzimir mill of the present invention makes the deflection of AS-U roller have surplus in advance and is provided with limit.And, if deflection reaches the limitation, then when carrying out high-speed rolling according to the shift position of target shape correction first intermediate calender rolls.Thus, make the shift position of first intermediate calender rolls move to the suitably position of (the best) simultaneously, so can realize to carry out the shape control apparatus of high-precision shape control owing to can make the deflection of AS-U roller have surplus.In addition; Through revise the shift position of first intermediate calender rolls in advance according to the kind of rolling stock or rolling time table etc.; As far as the kind or the rolling time table of each rolling stock, can both be displaced to suitable position with the shift position of chien shih first intermediate calender rolls in short-term.
Below, with reference to accompanying drawing, specify the embodiment of sendzimir mill of the present invention, still, at first,, the summary of sendzimir mill is described in order to should be readily appreciated that.
Fig. 3 is the notion pie graph of common sendzimir mill, (a) is side view, (b) is front view.As shown in Figure 3, the material 15 that is rolled on sendzimir mill 1 opposite planar comprises 20 rollers in the thickness direction both sides: 21 group working roll 14, by up and down each 2 add up to 4 first intermediate calender rolls 13 that constitute, by up and down each 3 add up to 6 second intermediate calender rolls 12 that constitute and by up and down each 4 add up to 8 backing rolls that constitute 16.In addition, 2 of topmosts in the backing roll 16 or 4 (in Fig. 3 (a), topmost 2) are called AS-U roller 11.Shown in Fig. 3 (b), this AS-U roller 11 is constructed as follows: respectively cutting apart the saddletree 18 that is inserted with between the roller 17 as transmission device.Owing to be so to constitute, thus AS-U roller 11 and be rolled and be provided with a plurality of rollers (second intermediate calender rolls, first intermediate calender rolls 13, working roll 14) between the material 15.
Because through sendzimir mill 1 is formed formation shown in Figure 3, put on the thin working roll 14 in footpath from the load concentration ground of other roller, so can through a pair of working roll 14 effectively rolling stainless steel etc. firmly metal be rolled material 15.For example, because 600 tons concentrated load puts on working roll 14 from AS-U roller 11, second intermediate calender rolls 12 and first intermediate calender rolls 13,, can the metal material of 5.0mm be rolled down to the degree of 0.5mm or 0.3mm so pass through 10 times rolling control.In addition, the milling train that so constitutes is owing to be made up of 20 rollers, so be also referred to as 20 roller sendzimir mills, is preferred for the cold rolling etc. of metallic plate.
In sendzimir mill 1, the roller that carries out shape control is the AS-U roller 11 and first intermediate calender rolls 13.Therefore, the method for the shape control that the AS-U roller 11 and first intermediate calender rolls 13 are carried out is described.Fig. 4 is the concept map of the shape control method of expression sendzimir mill, (a) shape control method of expression AS-U roller, (b) shape control method of expression first intermediate calender rolls.
Shown in the left figure of Fig. 4 (a), under the state that does not make 11 deflections of AS-U roller, the percentage elongation that is rolled material 15 is shown in the performance plot under this figure, and is roughly even at whole width.But, shown in the right figure of Fig. 4 (a),, the deflection of AS-U roller 11 is changed through the position of adjustment saddletree 18.Thus, through making 11 deflections of AS-U roller, can control the whole shape of plate width direction that is rolled material 15.For example; Shown in the right figure of Fig. 4 (a); Make AS-U roller 11 in middle body deflection significantly when having operated AS-U roller 11; When thereby the roller gap of working roll 14 reduces at the plate width direction central portion that is rolled material 15, shown in this figure performance plot down, can obtain being rolled the thin plate of the big middle elongation state of the percentage elongation change of plate width direction central portion of material 15.
On the other hand; Because on first intermediate calender rolls 13; Be formed with taper in that the plate width direction that is rolled material 15 is one-sided; So through making first intermediate calender rolls 13, change the conical position that first intermediate calender rolls 13 is rolled material 15 relatively, can make the change in shape of the plate end that is rolled material 15 along the plate width direction displacement that is rolled material 15.
That is, shown in the left figure of Fig. 4 (b), under the state that does not make the displacement of first intermediate calender rolls 13, shown in the performance plot under this figure, the percentage elongation of whole width that is rolled material 15 is roughly even.But; Shown in the right figure of Fig. 4 (b); When first intermediate calender rolls 13 that will cut taper on the plate width direction right side is displaced to the outside (right side); Shown in this figure performance plot down, become the state (that is the big state of percentage elongation) that the shape of the plate end on the plate width direction right side that only is rolled material 15 is extended.
Through so making 13 displacements of first intermediate calender rolls, can carry out the shape control of plate end.In addition, first intermediate calender rolls 13 owing to form usually clip be rolled material 15 and can with top 2 be one group and the machinery of self-movement constitutes with following 2, so the roller taper also is located at the plate width direction opposition side respectively on roller up and down.For example, if the first top intermediate calender rolls 13 clips and is rolled material 15 and cut taper on the plate width direction right side, the first then following intermediate calender rolls 13 clips and is rolled material 15 and has cut taper in the plate width direction left side.
As stated, sendzimir mill 1 adopts AS-U roller 11 and first intermediate calender rolls, 13 these 2 groups of transmission devices, carries out the roller convex surface adjustment (that is the adjustment of deflection) of AS-U roller 11 and the shift position control of first intermediate calender rolls 13.At this moment; Because first intermediate calender rolls shift position of being carried out is controlled in thin plate rolling first intermediate calender rolls is moved along plate width direction; Therefore if mill speed slowly then first intermediate calender rolls also with low speed rotation, so the frictional resistance of the moving direction that between first intermediate calender rolls and working roll, produces increases.Therefore, under the slow situation of mill speed, be shifted along plate width direction, need bigger power in order to make first intermediate calender rolls.Thereby, be difficult to realize high-precision shape control.
Fig. 5 is the concept map of shape control method of shape control range of mill speed and 2 transmission devices of expression sendzimir mill.That is, as shown in Figure 5, at sendzimir mill (for example with low speed; During 0～100mpm) running; Only carry out shape control through the roller convex surface adjustment of AS-U roller 11, at sendzimir mill with at a high speed (for example, during 100～600mpm) runnings; First intermediate calender rolls 13 can be worked, and utilizes the roller convex surface adjustment of AS-U roller 11 and the shift position control of first intermediate calender rolls 13 to carry out shape control.
Promptly; At sendzimir mill during with low-speed running, owing to do not become under the state of appropriate location in the shift position of first intermediate calender rolls 13, roller convex surface adjustment (deflection adjustment) revision board shape through AS-U roller 11 only; So surpass sometimes AS-U roller 11 deflection limits value (for example, 1mm).Consequently, produce following situation: the security control mechanism starting of sendzimir mill stops the control work of AS-U roller 11.
Therefore; Behind the speed state that becomes the displacement that in shape control, can use first intermediate calender rolls 13; Sendzimir mill is kept watch on the actual value of the deflection of actual shape and AS-U roller 11; Change the shift position of first intermediate calender rolls 13 by the strong hand, become suitable position up to the shift position of first intermediate calender rolls 13.In addition; Sendzimir mill remains appropriate state for the shape that is rolled material 15 in the shift position that will change first intermediate calender rolls 13 by the strong hand, and the level that the change target shape has adopted the shape of the roller convex surface adjustment (deflection adjustment) of AS-U roller 11 to control relatively.And then; Sendzimir mill is by each rolling time table or every kind of rolling stock; The shift position of storing first intermediate calender rolls 13 becomes suitable shift position, for the leading section of first intermediate calender rolls 13 becomes the appropriate location, and preestablishes the shift position of first intermediate calender rolls 13.So, be displaced to the appropriate location, can be no more than at the deflection of AS-U roller 11 and carry out suitable shapes control under the situation of limits value (limit) through making first intermediate calender rolls 13 by the strong hand.
First embodiment
Below, specify the concrete shape control method of the sendzimir mill (the described shape control apparatus of summary of the invention) of an embodiment of the present invention.Fig. 1 is the pie graph of expression sendzimir mill.As shown in Figure 1, sendzimir mill 1 possesses: portion of rolling mechanism, and it via working roll (the 3rd roller) 14, is rolled the shape control of material 15 through the control of AS-U roller (first roller) 11 and first intermediate calender rolls (second roller) 13; Shape control apparatus 2 (different) with the described shape control apparatus of summary of the invention, it sends the shape control signal to the AS-U roller 11 and first intermediate calender rolls 13; The first intermediate calender rolls position correcting apparatus (roller position correction portion) 3, its transmission is used for first intermediate calender rolls 13 is adapted to the corrected signal of appropriate location; The first intermediate calender rolls position setting device (roll position setting portion) 4, its transmission are used in advance first intermediate calender rolls 13 being set in the setting signal of appropriate location; SHAPE DETECTION device 5, its detection is rolled the true form of material 15; With target shape setting apparatus 6, it obtains the deviation S13 of shape actual value S11 and shape desired value S12.
In addition, shape control apparatus 2 possesses: AS-U roll shape control part 21, and it carries out the roller convex surface adjustment (deflection adjustment) of AS-U roller 11; With first intermediate calender rolls displacement shape control unit 22, it carries out the shift position control of first intermediate calender rolls 13.
And then; Input signal to shape control apparatus 2 input does, the deviation S13 of true form S11 that the SHAPE DETECTION device 5 that is provided with by the outlet side at sendzimir mill 1 is measured and the shape desired value S12 that confirmed by each mill train timetable of setting according to target shape setting apparatus 6.Therefore, AS-U roll shape control part 21 and first intermediate calender rolls displacement shape control unit 22 are carried out FEEDBACK CONTROL respectively, so that the deviation S13 of true form S11 and shape desired value S12 becomes minimum.
Here, employing figure explains that the deviation S13 of true form S11 and shape desired value S12 becomes the object lesson of minimum FEEDBACK CONTROL.Fig. 6 be the expression sendzimir mill shape control method one the example concept map; (a) be formation and the performance plot that the state of form variations is arranged; (b) be form variations to be controlled to be the formation and the performance plot of minimum state, (c) be formation and the performance plot that form variations is controlled to be minimum state through AS-U roll shape control part 21 through first intermediate calender rolls displacement shape control unit 22.
For example, shown in Fig. 6 (a), do not have deflection, and first intermediate calender rolls 13 shown in the performance plot on the right, produces bigger form variations at whole plate width direction when also not being shifted at AS-U roller 11.At this moment, first intermediate calender rolls displacement shape control unit 22, shown in figure (b), the shift position with first intermediate calender rolls 13 up and down shown in arrow moves to the outside, removes form variations.Consequently, shown in the performance plot on the right, be controlled as minimum at whole plate width direction form variations.In addition, AS-U roll shape control part 21 shown in Fig. 6 (c), changes the deflection of AS-U roller, to remove form variations.Consequently, shown in the performance plot on the right, be controlled as minimum at whole plate width direction form variations.
But; As stated, because the translational speed of first intermediate calender rolls, 13 displacements is lower than the deflection speed of AS-U roller 11, and; The scope of the control effect of first intermediate calender rolls 13 is defined in the plate end, so need adopt AS-U roll shape control part 21 to control the deflection of AS-U roller 11 as far as possible.In addition; Sendzimir mill 1, as shown in Figure 5, because velocity mode running so that milling train is stopped; So the slow-footed velocity band when rolling when beginning or rolling end, the control of 22 pairs first intermediate calender rolls 13 of first intermediate calender rolls displacement shape control unit is invalid.Therefore, at slow-footed velocity band, shape control is carried out in the control of the deflection of the AS-U roller 11 that is only carried out through AS-U roll shape control part 21.
Consequently; In the control of the deflection of the AS-U roller 11 that AS-U roll shape control part 21 is carried out, shown in the pie graph of Fig. 6 (c), the deflection quantitative change of AS-U roller 11 is big sometimes; The boundary of deflection (surplus) disappears, or has reached the limits value (limit) of deflection.That is, AS-U roller 11 is owing to be provided with the mechanical deviation limit so that roll shaft, therefore can't carry out above (for example, 1mm) the deflection work of certain value not because of deflection bends between each saddletree 18.
For example; Shown in the pie graph of Fig. 6 (c); Under the big state of the deflection of AS-U roller 11, and the deflection deviation of 18 of each saddletrees of AS-U roller 11 reached under the situation of limit value, when being rolled the shape sudden turn of events of material 15; Because first intermediate calender rolls displacement shape control unit 22 will be controlled the shift position of first intermediate calender rolls 13, so the responsiveness variation of shape control.In addition, when mill speed is low speed,, therefore consequently produce the situation that to carry out desirable shape control because the displacement control of first intermediate calender rolls 13 that first intermediate calender rolls displacement shape control unit 22 is carried out is invalid.
Therefore; Shown in the pie graph of Fig. 6 (c); At the deflection of AS-U roller 11 when reaching the such big deflected of limits value (limit); For the shift position that makes first intermediate calender rolls 13 become at a high speed in mill speed after changes to the position of hope, the shift position of first intermediate calender rolls displacement shape control unit, 22 controls, first intermediate calender rolls 13 is shown in the performance plot of Fig. 6 (b); Be no more than for deflection in the scope of limits value (limit) and make form variations become minimum, need the mechanism of control first intermediate calender rolls 13 at AS-U roller 11.
Turn back to Fig. 1 once more, the first intermediate calender rolls position correcting apparatus 3 is shift positions of when the deflection of AS-U roller 11 has reached limits value (limit), having revised first intermediate calender rolls 13, controls first intermediate calender rolls 13 so that form variations becomes minimum mechanism.Actual rolling S14 such as the shift position of the deviation S13 of this first intermediate calender rolls position correcting apparatus 3 input shape actual value S11 and shape desired value S12 and the deflection of AS-U roller 11, first intermediate calender rolls 13, mill speed; True form is maintained target shape; Export the first intermediate calender rolls shift instruction S15, AS-U roller position command S16 simultaneously, to the target shape correction value S18 of first intermediate calender rolls displacement shape control unit, 22 inputs, and to the target shape correction value S17 of AS-U roll shape control part 21 inputs, so that the shift position of first intermediate calender rolls 13 is suitable position.
Below, illustrate in greater detail the work of the first intermediate calender rolls position correcting apparatus 3.Fig. 2 is the figure that the inside of the first intermediate calender rolls position correcting apparatus 3 of the sendzimir mill of presentation graphs 1 constitutes.As shown in Figure 2, the first intermediate calender rolls position correcting apparatus 3 possesses: the first intermediate calender rolls position is very denied detection unit (the roller position very denys a detection unit) 30, (the first roller target shape correction portion) (the second roller target shape correction portion) 32, the first intermediate calender rolls shift position correction portion of 31, the first intermediate calender rolls target shape correction portion of AS-U roller target shape correction portion (the second roller position correction portion) 33, is reached AS-U roller position correction portion (the first roller position correction portion) 34.
The first intermediate calender rolls position very denys deviation S13 and the actual rolling S14 that detection unit 30 adopts shape actual value S11 and shape desired value S12, judges whether the shift position of first intermediate calender rolls 13 is appropriate locations.For example adopt rule base to implement to judge.As rule base; For example; Adopt the rule of " if the position of the saddletree 18 of the end of AS-U roller 11 surpasses the work limit of closing direction; the conical position of first intermediate calender rolls 13 is in plate is wide, and true form plate end is consistent with target shape, then need change the shift position of first intermediate calender rolls 13 ".
If the first intermediate calender rolls position very denys the shift position that detection unit 30 is judged to be needs change first intermediate calender rolls 13; Then the first intermediate calender rolls shift position correction portion 33 is with the output signal stack of the first intermediate calender rolls shift instruction S15 and first intermediate calender rolls displacement shape control unit 22, and the shift position of first intermediate calender rolls 13 is revised on inclined plane shape ground.At this moment, when said rule base is worked, make the shift position of first intermediate calender rolls 13 be displaced to the outside, the shape of extending-board end.Consequently; Because change in shape is the elongation of plate end, thus work through the control of AS-U roll shape control part 21 corresponding to this AS-U roller 11, consequently; The position of the saddletree 18 of the end of AS-U roller 11 breaks away from from closing direction work limit, moves to secure side.
In addition; If make first intermediate calender rolls 13 be displaced to the outside; Then change owing to measurable plate end shape; So AS-U roller position correction portion 34 can carry out the roller convex surface adjustment (deflection adjustment) of AS-U roller 11 with the output signal stack of AS-U roller position command S16 and AS-U roll shape control part 21 under the situation of the work of not waiting for AS-U roll shape control part 21.
Turn back to Fig. 1 once more; And then in the time true form being remained in certain deviation do not change the shift position of first intermediate calender rolls 13 simultaneously, can realize through the deviation S13 that changes to the target shape of AS-U roll shape control part 21 and 22 inputs of first intermediate calender rolls displacement shape control unit.For example; When being judged to be the shift position that needs change first intermediate calender rolls 13 with rule base; Stack is from the target shape correction value S18 of the first intermediate calender rolls target shape correction portion, 32 outputs on the deviation S13 of the target shape in being input into first intermediate calender rolls displacement shape control unit 22, and change is input into the deviation S13 of the target shape in first intermediate calender rolls displacement shape control unit 22.Thus, first intermediate calender rolls displacement shape control unit 22 is shifted first intermediate calender rolls 13 laterally, in the plate end shape is changed to the ear elongation state.In addition, the change amount with target shape is set in the feasible value of form variations.
Equally, stack is from the target shape correction value S17 of AS-U roller target shape correction portion 31 outputs on the deviation S13 of the target shape in being input into AS-U roll shape control part 21, and change is input into the deviation S13 of the target shape in the AS-U roll shape control part 21.Thus, AS-U roll shape control part 21 control AS-U rollers 11, in the plate end along the adjustment in direction of elongation.
In addition, if the output signal of first intermediate calender rolls displacement shape control unit 22 is imported the setting S19 from the first intermediate calender rolls position setting device 4, then can make first intermediate calender rolls 13 be displaced to predetermined position.For example, in the first intermediate calender rolls position setting device 4, in advance inputs such as thickness of slab or steel grade are pressed in the table (table) of mill train quantity differentiation.And; When rolling beginning; From table (table), select the shift position of first intermediate calender rolls 13 not from the rolling time table; According to setting S19 from the first intermediate calender rolls position setting device 4, make first intermediate calender rolls 13 be displaced to the position of hope in advance, the position correction time that can make the first intermediate calender rolls position correcting apparatus 3 thus is for the shortest.
Second embodiment
In the first embodiment, sendzimir mill has been described, but in this embodiment, 6 roller mills that are made up of 6 rollers altogether up and down has been described.
Fig. 7 is the pie graph of 6 roller mills.6 roller mills 50 of second embodiment clip and are rolled material 15, and are made up of top working roll 55, bottom working roll 56, last intermediate calender rolls 53, following intermediate calender rolls 54, top backing up roll 51, lower support roller 52 these 6 rollers.
In 6 roller mills 50 of Fig. 7, same with first intermediate calender rolls 13 of sendzimir mill 1 shown in Figure 1, also exist the intermediate calender rolls 53,54 up and down can't be when mill speed is slow along the problem of plate width direction displacement.Therefore, when mill speed is slow,, produce the situation that the shift position of intermediate calender rolls 53,54 does not up and down become suitable state because an operation element bending forcing press 57 carries out shape control.Therefore, the formation that the sendzimir mill of Fig. 1 of available and said first embodiment 1 is same, with the shift position control of intermediate calender rolls 53,54 up and down in position.
Fig. 8 is the pie graph of 6 roller mills of second embodiment.As shown in Figure 8, on described 6 rollers, possess shape control apparatus 61, intermediate calender rolls position correcting apparatus 62, intermediate calender rolls position setting device 63, SHAPE DETECTION device 5, and target shape configuration part 6 as 6 roller mills 50 of shape control apparatus.
In sum, the sendzimir mill 1 of an embodiment of the present invention possesses the roller convex surface guiding mechanism of AS-U roller 11, the shift mechanism and the SHAPE DETECTION device 5 of first intermediate calender rolls 13.And, when in sendzimir mill 1, implementing shape control, judge that the good of shift position of first intermediate calender rolls 13 denys to revise the shift position of first intermediate calender rolls 13.At this moment, the judgement very denying of the shift position of first intermediate calender rolls 13 adopts true form, the deflection of AS-U roller 11 and the shift position of first intermediate calender rolls 13 to carry out.Thus, even can't carry out displacement work at first intermediate calender rolls 13 during in low speed rolling, also observe the deflection and the true form of AS-U roller 11, the timing when high-speed rolling simultaneously is adapted to the appropriate location with the shift position of first intermediate calender rolls 13.Therefore; The shape control of the shape control apparatus of sendzimir mill 1 grade; Even carry out through the roller convex surface adjustment (adjustment of deflection) of AS-U roller 11 and the shift position control of intermediate calender rolls; Usually also can both rollers be maintained the appropriate location, carry out good shape control in whole velocity interval simultaneously.In addition, the correction of the shift position of first intermediate calender rolls is carried out through the shift position of direct change first intermediate calender rolls.
In addition, the correction of the shift position of first intermediate calender rolls is through revising respectively with respect to the shape control of the roller convex surface adjustment of having adopted the AS-U roller and having adopted the target shape of shape control of the displacement of first intermediate calender rolls to realize.And then, when the data of storing the shift position of revised first intermediate calender rolls in advance, carry out equally when rolling next time, through set the shift position of first intermediate calender rolls based on this data in advance, can shorten the time of shape control.
(utilizability on the industry)
Shape control apparatus of the present invention can effectively utilize in the sendzimir mill of the rolling processing of carrying out metal material or 6 roller mills etc.
Claims (5)
1. shape control apparatus, it possesses: first roller, it changes deflection, make to and to be rolled the pressing force that a plurality of rollers between the material apply variable; Second roller, the change in location that it makes the taper that is formed at self, make to and the pressing force that applies of the said single or a plurality of rollers that are rolled between the material variable; The 3rd roller, it carries out shape control at least through the pressing force of said first roller and the pressing force of said second roller to the said material that is rolled, it is characterized in that,
Possesses roller position correction portion; Said true form, mill speed, the deflection of said first roller and the conical position of said second roller that is rolled material that this roller position correction portion realizes based on the pressing force of pressing force through said first roller and said second roller; Revise the conical position of said second roller
Even when mill speed is slow, also forcibly make the conical position of said second roller move to suitable position, the deflection of said first roller is suppressed at suitable scope.
2. shape control apparatus as claimed in claim 1; It is characterized in that; Said roller position correction portion possesses very detection unit not of roller position; This roller position very not detection unit judge based on said true form, said mill speed, said deflection and said conical position whether the conical position of said second roller suitable.
3. shape control apparatus as claimed in claim 2; It is characterized in that; Said roller position correction portion also possesses the second roller position correction portion; This second roller position correction portion in said roller position very not detection unit be judged to be the conical position of said second roller when inappropriate, based on the deviation of said true form and target shape, revise the conical position of said second roller.
4. like each described shape control apparatus in the claim 1～3; It is characterized in that; Also possesses roll position setting portion; This roll position setting portion preserves the said actual rolling data that are rolled material, and based on the rolling data of this reality, and the conical position of said second roller is set on the position of hope.
5. shape control apparatus as claimed in claim 4 is characterized in that, it is as sendzimir mill.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005344845A JP4516515B2 (en) | 2005-11-30 | 2005-11-30 | Shape control apparatus and shape control method |
| JP2005-344845 | 2005-11-30 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610162570A Division CN100594996C (en) | 2005-11-30 | 2006-11-28 | Shape control device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101786106A CN101786106A (en) | 2010-07-28 |
| CN101786106B true CN101786106B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200610162570A Expired - Fee Related CN100594996C (en) | 2005-11-30 | 2006-11-28 | Shape control device and method |
| CN2010101194792A Expired - Fee Related CN101786106B (en) | 2005-11-30 | 2006-11-28 | Device and method for controlling shape |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200610162570A Expired - Fee Related CN100594996C (en) | 2005-11-30 | 2006-11-28 | Shape control device and method |
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| Country | Link |
|---|---|
| JP (1) | JP4516515B2 (en) |
| KR (2) | KR101089848B1 (en) |
| CN (2) | CN100594996C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4516515B2 (en) * | 2005-11-30 | 2010-08-04 | 株式会社日立製作所 | Shape control apparatus and shape control method |
| JP5469143B2 (en) * | 2011-09-29 | 2014-04-09 | 株式会社日立製作所 | Rolling control device, rolling control method, and rolling control program |
| ES2618487T3 (en) * | 2013-03-25 | 2017-06-21 | Abb Schweiz Ag | Procedure and control system to adjust the flatness control in a rolling mill |
| CN104438351A (en) * | 2014-08-29 | 2015-03-25 | 武汉钢铁(集团)公司 | Control method for hydraulic servo system for shifting rolls of intermediate rolls of double-rack rolling mill |
| CN104275352B (en) * | 2014-09-22 | 2016-04-27 | 宁波宝新不锈钢有限公司 | A kind of cold-strip mill sideslip and Automatic Flatness Control method |
| US10363590B2 (en) | 2015-03-19 | 2019-07-30 | Machine Concepts, Inc. | Shape correction leveler drive systems |
| CN106607460B (en) * | 2015-10-27 | 2018-10-02 | 宝山钢铁股份有限公司 | Sendzimir 20 high mill Edge shape control method |
| JP7034046B2 (en) * | 2018-10-05 | 2022-03-11 | 株式会社日立製作所 | Control device and control method |
| CN111495983A (en) * | 2020-04-27 | 2020-08-07 | 山西太钢不锈钢股份有限公司 | Method for controlling plate shape defect of large-belly plate rolled by stainless steel wide and thick cold-hardened plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100594996C (en) * | 2005-11-30 | 2010-03-24 | 株式会社日立制作所 | Shape control device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59144507A (en) * | 1983-02-04 | 1984-08-18 | Kawasaki Steel Corp | Method for controlling shape of steel plate in accelerating and decelerating rolling speed |
| JPH03165910A (en) * | 1989-03-30 | 1991-07-17 | Nippon Steel Corp | Shape control of cluster mill |
| JP2804161B2 (en) * | 1990-06-04 | 1998-09-24 | 株式会社日立製作所 | Method and apparatus for controlling shape of Sendzimir mill |
| JPH07102380B2 (en) * | 1990-08-30 | 1995-11-08 | 株式会社神戸製鋼所 | Shape control method of rolled material in multi-high rolling mill |
| JPH07102381B2 (en) * | 1990-09-25 | 1995-11-08 | 株式会社神戸製鋼所 | Method for adjusting plate shape of rolled material by rolling mill |
| JP2668845B2 (en) * | 1992-05-14 | 1997-10-27 | 日本冶金工業 株式会社 | Method of controlling shape of rolled material of Sendzimir rolling mill |
| JP2680252B2 (en) * | 1993-12-10 | 1997-11-19 | 株式会社神戸製鋼所 | Shape control method for multi-high rolling mill |
| US10267908B2 (en) * | 2015-10-21 | 2019-04-23 | Waymo Llc | Methods and systems for clearing sensor occlusions |
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2005
- 2005-11-30 JP JP2005344845A patent/JP4516515B2/en not_active Expired - Fee Related
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- 2006-11-28 CN CN200610162570A patent/CN100594996C/en not_active Expired - Fee Related
- 2006-11-28 CN CN2010101194792A patent/CN101786106B/en not_active Expired - Fee Related
- 2006-11-29 KR KR1020060118867A patent/KR101089848B1/en active IP Right Grant
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100594996C (en) * | 2005-11-30 | 2010-03-24 | 株式会社日立制作所 | Shape control device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100594996C (en) | 2010-03-24 |
| JP2007144492A (en) | 2007-06-14 |
| KR101164375B1 (en) | 2012-07-09 |
| CN101786106A (en) | 2010-07-28 |
| CN1974039A (en) | 2007-06-06 |
| KR101089848B1 (en) | 2011-12-05 |
| JP4516515B2 (en) | 2010-08-04 |
| KR20110071056A (en) | 2011-06-28 |
| KR20070057017A (en) | 2007-06-04 |
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