CN1974039A - Shape control device and method - Google Patents
Shape control device and method Download PDFInfo
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- CN1974039A CN1974039A CNA2006101625706A CN200610162570A CN1974039A CN 1974039 A CN1974039 A CN 1974039A CN A2006101625706 A CNA2006101625706 A CN A2006101625706A CN 200610162570 A CN200610162570 A CN 200610162570A CN 1974039 A CN1974039 A CN 1974039A
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- roller
- shape
- shape control
- 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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- Control Of Metal Rolling (AREA)
Abstract
A method can processing high precision shape control by shifting a first mid-roller to an appropriate position and making a AS-U roller having tolerance in bending, independent of friction, even in state of slow rolling speed. The shape control device 2 controls the bending of the AS-U roller and shift position of the first mid-roller 13 and the pressure applied on a working roller 14 and the shape of the processing material 15. At the same time, based on the actual shape of the processing material and the rolling speed and the bending of the AS-U roller 11 and the shift position of the first mid-roller, a position correct device of the first mid-roller can regulate the position of the first mid-roller. Therefore, even if the bending of the AS-U roller reaches the limit value, the first mid-roller can control the shape by being shifted to an appropriate position. In addition, the position arranged device 4 of the first mid-roller can store previous actual rolling data, based on which a second roller can be shift to prospective position.
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 by detect shape model and target shape pattern poor, obtain the neutral net of the operational ton of transmission device with the similar ratio of benchmark shape model, by 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, obtain the fuzzy quantity of each steepness pattern, and determine the shift position of the deflection and first intermediate calender rolls of AS-U roller by 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 mentioned above, 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 can not make the displacement of first intermediate calender rolls sometimes under the slow situation of mill speed.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 produces between first intermediate calender rolls and working roll 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 adjust (adjustment of deflection) with the roller convex surface of AS-U roller and control, 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 also deflection of first roller can be suppressed at suitable scope when mill speed is slow.
Shape control apparatus of the present invention is invented for reaching described 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 multiple rollers between the material apply variable; The 3rd roller, it is at least by the pressing force of first roller and the pressing force of second roller, the described material that is rolled is carried out shape control, wherein, possesses 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 by 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 by making the displacement of second roller forcibly according to the deflection of first roller and the shape of plate end.Thus, even when mill speed is slow, also the deflection of first roller can be suppressed at suitable scope, can carry out shape control to being rolled material rightly.
In addition, deflection control and the displacement control of the conical position of the second roller shape that be rolled material when controlling of shape control apparatus by first roller, even the deflection of first roller reaches limits value, second roller also can make conical position change forcibly and carry out completion.In addition,, if the deflection deficiency of first roller, 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 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 also deflection of first roller can be suppressed at suitable scope when mill speed is slow can be provided.
Description of drawings
Fig. 1 is the pie graph of shape control system of the sendzimir mill of expression first embodiment of the present invention.
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 the shape control range of the expression mill speed of sendzimir mill and 2 transmission devices.
Fig. 6 is the concept map of an example of the shape control method of expression sendzimir mill, (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 by AS-U roll shape control part 21 by 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 of shape control system of 6 roller mills of expression second embodiment of the present invention.
Among the figure: the 1-sendzimir mill, the 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), the 15-rolled stock, the 16-backing roll, 17-is cut apart roller, the 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, the 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 to implement best mode of the present invention (hereinafter referred to as " embodiment ") 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, by revise the shift position of first intermediate calender rolls in advance according to the kind of rolling stock or rolling time table etc., for 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, describe the embodiment of sendzimir mill of the present invention in detail, 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 by sendzimir mill 1 is formed formation shown in Figure 3, put on the thin working roll 14 in footpath from the load concentrated area of other roller, so can by a pair of working roll 14 effectively hard metal such as rolling stainless steel 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,, the metal material of 5.0mm can be rolled down to the degree of 0.5mm or 0.3mm so pass through 10 times rolling control.In addition, so the milling train that constitutes is owing to be made 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 by adjusting the position of saddletree 18.Thus, by making 11 deflections of AS-U roller, can control the shape of the plate width direction integral body 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 the performance plot under this figure, the percentage elongation that can obtain being rolled the plate width direction central portion of material 15 becomes the thin plate of big middle elongation state.
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 by making first intermediate calender rolls 13 along the plate width direction displacement that is rolled material 15, change the conical position that first intermediate calender rolls 13 is rolled material 15 relatively, can make the change of shape of the plate end 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 the performance plot under this figure, become the state (that is the big state of percentage elongation) of shape elongation of the plate end on the plate width direction right side that only is rolled material 15.
By 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 and following 2 be one group and the machinery of self-movement constitutes, 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, then Xia Mian first intermediate calender rolls 13 clips and is rolled material 15 and has cut taper in the plate width direction left side.
As mentioned above, sendzimir mill 1 adopts AS-U roller 11 and first intermediate calender rolls, 13 these 2 groups of transmission devices, and the roller convex surface that carries out AS-U roller 11 is adjusted the shift position control of (that is the adjustment of deflection) and 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 produces between first intermediate calender rolls and working roll 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 the shape control range of the expression mill speed of sendzimir mill and 2 transmission devices.Promptly, as shown in Figure 5, at sendzimir mill (for example with low speed, during 0～100mpm) running, only carry out shape control by 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, only adjust (deflection adjustment) revision board shape by the roller convex surface of AS-U roller 11, 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 monitors the actual value of the deflection of actual shape and AS-U roller 11, change the shift position of first intermediate calender rolls 13 forcibly, 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 forcibly, and the change target shape has adopted the roller convex surface of AS-U roller 11 to adjust the level of the shape control of (deflection adjustment) 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 shape control under the situation of limits value (limit) by making first intermediate calender rolls 13 forcibly.
First embodiment
Below, the concrete shape control method of the sendzimir mill (the described shape control apparatus of summary of the invention) of detailed description one 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 by 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 is 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 its roller convex surface that carries out AS-U roller 11 is adjusted (deflection adjustment); 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 is, 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 determined 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.
Herein, employing figure illustrates that the deviation S13 of true form S11 and shape desired value S12 becomes the object lesson of minimum FEEDBACK CONTROL.Fig. 6 is the concept map of an example of the shape control method of expression sendzimir mill, (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 by AS-U roll shape control part 21 by 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 moves to the outside as shown by arrows, 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 mentioned above, 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, only shape control is carried out in the control of the deflection of the AS-U roller 11 that is undertaken by 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 deflection limit so that roll shaft, therefore can't carry out above (for example, deflection work 1mm) 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 that each saddletree of AS-U roller 11 is 18 has 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 big like that deflected of limits value (limit), change to the position of hope for the shift position that makes first intermediate calender rolls 13 become at a high speed in mill speed after, the shift position of first intermediate calender rolls displacement shape control unit, 22 controls, first intermediate calender rolls 13, 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 having revised first intermediate calender rolls 13 when the deflection of AS-U roller 11 has reached limits value (limit), 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, AS-U roller target shape correction portion (the first roller target shape correction portion) 31, the first intermediate calender rolls target shape correction portion (the second roller target shape correction portion) 32, the first intermediate calender rolls shift position 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 " if the position of the saddletree 18 of the end of AS-U roller 11 surpasses the working 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 needs to change the shift position of first intermediate calender rolls 13 " rule.
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 described 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 of shape is the elongation of plate end, thus work by 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 the direction working 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 of AS-U roller 11 and adjust (deflection adjustment) 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 by 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, the setting S19 as if the output signal of first intermediate calender rolls displacement shape control unit 22 being imported 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 the present embodiment, 6 roller mills that are made 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 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.
Intermediate calender rolls 54 had been cut taper respectively under last intermediate calender rolls 53 reached in the end of plate width direction opposition side, shown in the arrow of Fig. 7, can be shifted vertically.Intermediate calender rolls 53,54 up and down, same with first intermediate calender rolls 13 of sendzimir mill 1 shown in Figure 1, especially can control the shape of the plate end that is rolled material 15.In addition, be provided with working roller bending forcing press 57 in the end of top working roll 55 and bottom working roll 56.Working roller bending forcing press 57, same with the AS-U roller 11 of sendzimir mill 1 shown in Figure 1, can change by the roller deflection being made put on the draught pressure that is rolled material 15, simultaneously the plate shape that is rolled material 15 is carried out amount of deflection control.
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 described 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 8,6 roller mills 50 as shape control apparatus possess shape control apparatus 61, intermediate calender rolls position correcting apparatus 62, intermediate calender rolls position setting device 63, SHAPE DETECTION device 5, reach target shape configuration part 6 on described 6 rollers.
Shape control apparatus 61 possesses intermediate calender rolls displacement shape control unit 61a and working roller bending forcing press shape control unit 61b.And then, append intermediate calender rolls position correcting apparatus 62, same with the first intermediate calender rolls position correcting apparatus 3 shown in Figure 1, can implement the processing of the displacement of target shape correction or intermediate calender rolls and the instruction of AS-U roller position etc.In addition, implement the intermediate calender rolls position setting device 63 handled with the same control of the first intermediate calender rolls position setting device 4 shown in Figure 1 by appending, can also be according to the kind that is rolled material etc. in advance with the position of intermediate calender rolls set positions in hope.According to the above, same with the situation of sendzimir mill, also can in 6 roller mills, use the present invention.
In sum, the sendzimir mill 1 of one 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 adjust the shift position control of (adjustment of deflection) and intermediate calender rolls carries out by the roller convex surface of AS-U roller 11, usually also both rollers can 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 undertaken by the shift position of direct change first intermediate calender rolls.
In addition, the correction of the shift position of first intermediate calender rolls is by 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, by 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 rolling processing of carrying out metal material Sendzimir mill or 6 roller mills etc.
Claims (10)
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 described single or multiple rollers that are rolled between the material variable; The 3rd roller, it carries out shape control at least by the pressing force of described first roller and the pressing force of described second roller to the described material that is rolled, it is characterized in that,
Possesses roller position correction portion, described true form, mill speed, the deflection of described first roller and the conical position of described second roller that is rolled material that this roller position correction portion realizes based on the pressing force of pressing force by described first roller and described second roller revised the conical position of described second roller.
2. shape control apparatus as claimed in claim 1, it is characterized in that, described roller position correction portion possesses very detection unit not of roller position, this roller position very not detection unit judge based on described true form, described mill speed, described deflection and described conical position whether the conical position of described second roller suitable.
3. shape control apparatus as claimed in claim 2, it is characterized in that, described roller position correction portion also possesses the second roller position correction portion, this second roller position correction portion in described roller position very not detection unit be judged to be the conical position of described second roller when inappropriate, based on the deviation of described true form and target shape, revise the conical position of described second roller.
4. shape control apparatus as claimed in claim 3, it is characterized in that, described roller position correction portion also possesses the first roller position correction portion, when the conical position of described second roller has been revised in the described second roller position correction portion by this first roller position correction portion, based on the deviation of described true form and described target shape, revise the deflection of described first roller.
5. shape control apparatus as claimed in claim 4 is characterized in that, described roller position correction portion also possesses the second roller target shape correction portion, and this second roller target shape correction portion changes the value of described target shape, revises the conical position of described second roller.
6. shape control apparatus as claimed in claim 5, it is characterized in that, described roller position correction portion also possesses the first roller target shape correction portion, this first roller target shape correction portion in the described second roller target shape correction portion correction during conical position of described second roller, change the value of described target shape, revise the deflection of described first roller.
7. as each described shape control apparatus in the claim 1～6, it is characterized in that, also possesses roll position setting portion, this roll position setting portion preserves the described actual rolling data that are rolled material, and, the conical position of described second roller is set on the position of hope based on the rolling data of this reality.
8. shape control apparatus as claimed in claim 7 is characterized in that, it is as sendzimir mill.
9. shape control method, it is the shape control method of carrying out by shape control apparatus, this shape control apparatus 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 described single or multiple rollers that are rolled between the material variable; The 3rd roller, it carries out shape control at least by the pressing force of described first roller and the pressing force of described second roller to the described material that is rolled, and described shape control method is characterised in that, may further comprise the steps:
Based on described true form, mill speed, the deflection of described first roller and the conical position of described second roller that is rolled material that the pressing force of pressing force by described first roller and described second roller is realized, whether the conical position of judging described second roller proper step;
When the conical position that is judged to be described second roller is inappropriate,, revise the step of the conical position of described second roller based on the deviation of described true form and target shape;
When having revised the conical position of described second roller,, revise the step of the deflection of described first roller based on the deviation of described true form and described target shape.
10. shape control method as claimed in claim 9 is characterized in that, and is further comprising the steps of:
Change the value of described target shape, revise the step of the conical position of described second roller;
When having revised the conical position of described second roller, change the value of described target shape, revise the step of the deflection of described first roller.
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 |
| JP2005344845 | 2005-11-30 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101194792A Division CN101786106B (en) | 2005-11-30 | 2006-11-28 | Device and method for controlling shape |
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| Publication Number | Publication Date |
|---|---|
| CN1974039A true CN1974039A (en) | 2007-06-06 |
| CN100594996C CN100594996C (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN2010101194792A Expired - Fee Related CN101786106B (en) | 2005-11-30 | 2006-11-28 | Device and method for controlling shape |
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| Country | Link |
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| JP (1) | JP4516515B2 (en) |
| KR (2) | KR101089848B1 (en) |
| CN (2) | CN100594996C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028610A (en) * | 2011-09-29 | 2013-04-10 | 株式会社日立制作所 | Rolling control device, rolling control method and rolling control program |
| CN104275352A (en) * | 2014-09-22 | 2015-01-14 | 宁波宝新不锈钢有限公司 | Cold stripe mill deviation and shape automatic control method |
| 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 |
| CN105517720A (en) * | 2013-03-25 | 2016-04-20 | Abb技术有限公司 | Method and control system for tuning flatness control in a mill |
| CN111001660A (en) * | 2018-10-05 | 2020-04-14 | 株式会社日立制作所 | Control device and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4516515B2 (en) * | 2005-11-30 | 2010-08-04 | 株式会社日立製作所 | Shape control apparatus and shape 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 |
| 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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| 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 |
| JP4516515B2 (en) * | 2005-11-30 | 2010-08-04 | 株式会社日立製作所 | Shape control apparatus and shape control method |
| US10267908B2 (en) * | 2015-10-21 | 2019-04-23 | Waymo Llc | Methods and systems for clearing sensor occlusions |
-
2005
- 2005-11-30 JP JP2005344845A patent/JP4516515B2/en not_active Expired - Fee Related
-
2006
- 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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2011
- 2011-06-13 KR KR1020110056793A patent/KR101164375B1/en active IP Right Grant
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028610A (en) * | 2011-09-29 | 2013-04-10 | 株式会社日立制作所 | Rolling control device, rolling control method and rolling control program |
| CN103028610B (en) * | 2011-09-29 | 2015-01-07 | 株式会社日立制作所 | Rolling control device, rolling control method and rolling control program |
| CN105517720A (en) * | 2013-03-25 | 2016-04-20 | Abb技术有限公司 | Method and control system for tuning flatness control in a mill |
| CN105517720B (en) * | 2013-03-25 | 2017-04-05 | Abb 技术有限公司 | For adjusting the method and control system of the control of the Pingdu in milling train |
| US10661322B2 (en) | 2013-03-25 | 2020-05-26 | Abb Schweiz Ag | Method and control system for tuning flatness control in a 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 |
| CN104275352A (en) * | 2014-09-22 | 2015-01-14 | 宁波宝新不锈钢有限公司 | Cold stripe mill deviation and shape automatic control method |
| 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 |
| CN111001660A (en) * | 2018-10-05 | 2020-04-14 | 株式会社日立制作所 | Control device and control method |
| CN111001660B (en) * | 2018-10-05 | 2021-07-30 | 株式会社日立制作所 | Control device and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101786106A (en) | 2010-07-28 |
| KR101164375B1 (en) | 2012-07-09 |
| KR20110071056A (en) | 2011-06-28 |
| JP4516515B2 (en) | 2010-08-04 |
| JP2007144492A (en) | 2007-06-14 |
| CN101786106B (en) | 2012-07-25 |
| CN100594996C (en) | 2010-03-24 |
| KR20070057017A (en) | 2007-06-04 |
| KR101089848B1 (en) | 2011-12-05 |
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