CN103658180A - Multiroll type multistage rolling mill and operation method thereof - Google Patents

Multiroll type multistage rolling mill and operation method thereof Download PDF

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Publication number
CN103658180A
CN103658180A CN201310387246.4A CN201310387246A CN103658180A CN 103658180 A CN103658180 A CN 103658180A CN 201310387246 A CN201310387246 A CN 201310387246A CN 103658180 A CN103658180 A CN 103658180A
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roll
backing roll
stocking
rolling mill
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CN103658180B (en
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上杉宪一
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Kobe Steel Ltd
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Kobe Steel Ltd
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Abstract

The invention relates to an operation method of a multiroll type multistage rolling mill (1); the multiroll type multistage rolling mill (1) comprises a work roller (3) used for rolling metals and a support roller (5) supporting the work roller (3); the support roller (5) can be configured in an up-down direction and/or horizontal direction in a movable manner; when the rolling metal (2) is broken, a most upstream support roller (5a) and a most downstream support roller (5b), in a rolling direction, of the outmost support roller (5) are horizontally moved in a departing direction, so the work roller (3) can move to the direction departing away from the rolling metal. Through the operation method, when the rolling metal is broken, the rolling metal can be reliably and fast released.

Description

The method of operating of multiple roll type multi-stage rolling mill and multiple roll type multi-stage rolling mill
Technical field
The present invention relates to when stocking in rolling ruptures, can make the space between working roll become large, make stocking become the method for operating of multiple roll type multi-stage rolling mill and the multiple roll type multi-stage rolling mill of release conditions.
Background technology
As known, when by stocking rollings such as light sheet or foils, use multi-stage rolling mill.As multi-stage rolling mill, the general intermediate calender rolls of supporting working roll and the backing roll of supporting intermediate calender rolls " multi-stage rolling mill of multiple roll type " with fan cut as grape cluster that use.
In multiple roll type multi-stage rolling mill, in rolling, carry out the situation that the thickness of slab of stocking controls more.Such as using disclosed method for controlling thickness etc. in No. 2012-130937, TOHKEMY.During space between the pore volume change working roll based on calculating by this control method, the holding-down device of hydraulic that the backing roll that is used for making being provided in the downside central authorities of stocking is moved up and down drives.
In multiple roll type multi-stage rolling mill, there is the kind of 6 grades, 12 grades, 20 grades etc., for example, about the concrete structures of multiple roll type multi-stage rolling mill of 12 grades and the outfit position of holding-down device of hydraulic etc., at length open in the Figure 10 of " No.2, Aug. 2009 for stainless steel foil KT milling train as thin as a wafer, upper China fir etc.; Kobe Steel's skill report; Vol.59 " etc.
, when using while disclose such multiple roll type multi-stage rolling mill rolling in-process stock in above-mentioned document, although very rare, there is the situation of the fault of stocking fracture in generation rolling etc.Particularly, the tendency that in plate rolling, generally have the possibility of the thinner plate of thickness of slab fracture higher, the possibility of plate fracture uprises in the light sheet below 1mm.
In the situation that there is the fracture defect of stocking, in the situation that 12 grades of such multi-stage rolling mills of Figure 10 of above-mentioned document, holding-down device of hydraulic is moved as quickly as possible, the backing roll that is provided in downside central authorities is pushed downwards, make the space between working roll become large, the situation that stocking is bitten in working roll is removed (carrying out the rapid release of stocking).By the rapid release of this stocking, the injury to milling train when plate can be ruptured alleviates or eliminates.
But, in discharging rapidly, only by making to be provided in the holding-down device of hydraulic of the backing roll of downside central authorities, to move, burst size (pore volume between working roll) is 1~2mm left and right, and few.Therefore, the effect that alleviates of the injury to milling train that bring, during plate fracture of the release by stocking also has not enough situation according to the thickness of slab of stocking.
Summary of the invention
So, in view of the above problems, the injury to milling train when object is to provide by space between the working roll of rapid release of stocking being become also accelerate in addition greatly rate of release, by the fracture of stocking alleviates as much as possible and makes the processing of plate split pieces become the method for operating that is easy to multiple roll type multi-stage rolling mill and multiple roll type multi-stage rolling mill in the present invention.
In order to achieve the above object, adopt in the present invention following technological means.
Relevant multiple roll type multi-stage rolling mill of the present invention, has: working roll, rolling in-process stock; Backing roll, supports above-mentioned working roll; Roller space position control mechanism, makes above-mentioned backing roll at least one direction superior displacement of above-below direction and horizontal direction; And relieving mechanism, when the fracture of above-mentioned stocking, for above-mentioned working roll is moved to the direction that deviates from stocking, make the action of above-mentioned roller space position control mechanism so that in outermost above-mentioned backing roll, along the above-mentioned backing roll in the above-mentioned backing roll of the upstream side of rolling direction and downstream in the horizontal direction and to deviating from direction displacement.
Preferably, above-mentioned roller space position control mechanism is at least provided in than stocking on the lower on the above-mentioned backing roll of side.
Relevant another multiple roll type multi-stage rolling mill of the present invention, has: working roll, rolling in-process stock; Backing roll, supports above-mentioned working roll; Roller space position control mechanism, makes above-mentioned backing roll at above-below direction superior displacement; And relieving mechanism, for above-mentioned working roll is moved to the direction that deviates from stocking, make the action of above-mentioned roller space position control mechanism so that in outermost above-mentioned backing roll, the above-mentioned backing roll between the above-mentioned backing roll of the upstream side along rolling direction and the above-mentioned backing roll in downstream is on above-below direction and to the direction displacement that deviates from above-mentioned working roll.
In above-mentioned each multiple roll type multi-stage rolling mill, preferably, above-mentioned roller space position control mechanism has: wedge parts, have in the longitudinal direction chock shape, and be equipped with along the axis direction of above-mentioned backing roll; Drive division, is located at the base end side of above-mentioned wedge parts, makes above-mentioned wedge parts along the axis direction advance and retreat of above-mentioned backing roll.
The method of operating of relevant multiple roll type multi-stage rolling mill of the present invention, the method of operating of multiple roll type multi-stage rolling mill that there is the working roll of rolling in-process stock and support the backing roll of above-mentioned working roll, by above-mentioned backing roll can above-below direction and horizontal direction superior displacement set; When the fracture of above-mentioned stocking, for above-mentioned working roll is moved to the direction that deviates from stocking, make in outermost above-mentioned backing roll, along the above-mentioned backing roll in the above-mentioned backing roll of the upstream side of rolling direction and downstream in the horizontal direction and to deviating from direction displacement.
Preferably, except aforesaid operations, also make in above-mentioned outermost above-mentioned backing roll, the above-mentioned backing roll between the above-mentioned backing roll of the upstream side along rolling direction and the above-mentioned backing roll in downstream is on above-below direction and to the direction displacement that deviates from above-mentioned working roll.
Preferably, at least make than above-mentioned stocking on the lower the above-mentioned backing roll of side be shifted when the fracture of above-mentioned stocking.
The method of operating of relevant another multiple roll type multi-stage rolling mill of the present invention, is the method for operating of multiple roll type multi-stage rolling mill that has the working roll of rolling in-process stock and support the backing roll of above-mentioned working roll, by above-mentioned backing roll can above-below direction superior displacement set; When the fracture of above-mentioned stocking, for above-mentioned working roll is moved to the direction that deviates from stocking, make in outermost above-mentioned backing roll, the above-mentioned backing roll between the above-mentioned backing roll of the upstream side along rolling direction and the above-mentioned backing roll in downstream is on above-below direction and to the direction displacement that deviates from above-mentioned working roll.
The method of operating of the multiple roll type multi-stage rolling mill of the application of the invention and multiple roll type multi-stage rolling mill, between the working roll while making rapid discharge of stocking, space becomes large, in addition also accelerate rate of release, can alleviate as far as possible thus stocking fracture time the injury to milling train, and make the processing of plate split pieces become easy.
Accompanying drawing explanation
Fig. 1 is the front view that schematically represents the multiple roll type multi-stage rolling mill (12 grades) of relevant the 1st embodiment.
Fig. 2 means the stereogram of roller space position control mechanism.
Fig. 3 means the figure that has been carried out the motion of each roller in the situation of rapid release by multiple roll type multi-stage rolling mill.
Fig. 4 is that illustration has been carried out the figure of the result of rapid release by the multiple roll type multi-stage rolling mill of the 1st embodiment.
Fig. 5 is that illustration has been carried out the figure of the result of rapid release by the multiple roll type multi-stage rolling mill of the 1st embodiment.
Fig. 6 is that illustration has been carried out the figure of the result of rapid release by the multiple roll type multi-stage rolling mill of the 1st embodiment.
Fig. 7 is the front view that schematically represents the multiple roll type multi-stage rolling mill (12 grades) of relevant the 2nd embodiment.
The specific embodiment
Below, based on accompanying drawing explanation embodiments of the present invention.
In addition, in the following description, for identical part, give identical Reference numeral.Their title and function are also identical.Thereby, do not repeat the detailed explanation about them.
[ the 1st embodiment ]
After Fig. 1 means relevant multiple roll type multi-stage rolling mill 1(of the present invention, also have the situation that is singly called multi-stage rolling mill) figure, be 12 grades of milling trains.
Multi-stage rolling mill 1 is the base material of stainless steel, copper, titanium, nickel etc. to be carried out to cold working and rolling is processed as the device of sheet material or foil, has the working roll 3 of above lower a pair of configuration.
Each working roll 3 is subject to 4 supportings of a plurality of (two) intermediate calender rolls, and intermediate calender rolls 4 is positioned at 5 supportings of outermost a plurality of (3) backing roll.In other words, as shown in Figure 1, intermediate calender rolls 4 and backing roll 5 be centered by working roll 3,3 as grape cluster with the configuration (multiple roll type) of fan cut.In addition, outermost described here, is in the meaning apart from working roll 3 position farthest.
Outermost backing roll 5 is bearing on milling train housing 7 freely via axle support 6 rotations that are built-in with bearing etc., and the intermediate calender rolls 4 contact with working roll 3 is subject to CD-ROM drive motor (not shown) driving.
From upstream side (left side of Fig. 1), towards downstream, (right side of Fig. 1), through 3,3 of above-mentioned a pair of working rolls, is rolled stocking 2 on its thickness direction.In the entering side and go out side of working roll 3, be respectively equipped with for guide smoothly the band guide mechanism 8 of stocking 2 along rolling route.
In addition, in the multiple roll type multi-stage rolling mill 1 of present embodiment, possess roller space position control mechanism 10, described roller space position control mechanism 10 makes backing roll 5 displacements for upper movement of direction (also having the situation that is denoted as above-below direction) that makes working roll 3,3 directions in the rolling direction along stocking 2 (situation that also has the horizontal direction of being denoted as) or intersect with the rolling direction of stocking 2.In addition, be provided with the holding-down device of hydraulic 9 that makes backing roll 5 move up and down, adjust the pore volume of 3,3 of working rolls.The in the situation that of present embodiment, it is upper that holding-down device of hydraulic 9 is located at backing roll 5c, and described backing roll 5c is positioned at the downside central authorities of stocking 2.
As shown in Figure 1, roller space position control mechanism 10 is equipped on backing roll 5a.This backing roll 5a is the outermost backing roll that is positioned at the downside of stocking 2, is along rolling direction, to be positioned at the backing roll of upstream side.Equally, on the backing roll 5b in downstream, be also equipped with roller space position control mechanism 10.
Be configured to, by by each roller space position control mechanism 10 connecting move controls, make backing roll 5a, 5b displacement round about mutually.That is, in Fig. 1, backing roll 5a, the 5b representing with "+" by position control mechanism 10Jiang center, roller space in the horizontal direction superior displacement so that its deviate from.Amount of movement while deviating from also can be different in backing roll 5a, 5b, but preferably with amount.
In Fig. 2, three-dimensionally represent the roller space position control mechanism 10 that the backing roll 5a of upstream side is moved.The left tiltedly front of the part Shi Ben mechanism of below of paper of Fig. 2 is the part occurring in Fig. 1.
As shown in the drawing, backing roll 5a is bearing on the 1st supporting mass 11 via 6 rotations of axle support freely with the form of the 1st supporting mass 11 along long size shape.The rear side of the 1st supporting mass 11 (with backing roll 5a opposition side) is the inclined plane 12 along the axis direction of backing roll 5a.Separate predetermined distance with this inclined plane 12, be equipped with and form the tabular of long size and be fixed on the 2nd supporting mass 13 on milling train housing 7.Inclined plane 12 at the 1st supporting mass 11(the 1st supporting mass 11) and between the 2nd supporting mass 13, at length direction, be the wedge parts 14(chock parts 14 of chock shape) free to advance or retreat along the axis direction of backing roll 5a.On the two sides of wedge parts 14, in order to reduce resistance to sliding, to make wedge parts 14 high-speed mobile and configure slip needle bearing 18.
The drive division 15(that wedge parts 14 are located at its base end side is hydraulic cylinder for example) advance and retreat drive, if wedge parts 14 enter (being inserted into 11,13 of supporting masses), open in the gap of the 1st supporting mass 11 and the 2nd supporting mass 13, and then backing roll 5a is mobile to arrow A side (rolling direction downstream).If wedge parts 14 exit (extracting from 11,13 of supporting masses), the gap smaller of the 1st supporting mass 11 and the 2nd supporting mass 13, and then backing roll 5a is mobile to arrow B side (rolling direction upstream side).The amount of movement of wedge parts 14 is detected by position sensor 17, and drive division 15 is subject to servo valve 16 to carry out at high speed Position Control.
We were telling you, in the invention problem that will solve, describe in detail, when using multiple roll type milling train 1 by stocking 2 rolling, although very rare, there is the situation of the fault that the stocking 2 occurring in rolling ruptures etc.In the case, holding-down device of hydraulic 9 is moved as quickly as possible, backing roll 5c is pushed downwards, described holding-down device of hydraulic 9 be arranged on be provided in than stocking 2 on the lower in 3 backing rolls 5 of side, along rolling direction, be positioned on central backing roll 5c.In addition, in the present embodiment, when the fracture of stocking 2, make roller space position control mechanism 10 action so that the downside in stocking 2, along the backing roll 5a of the upstream side of rolling direction with along the backing roll 5b in the downstream of rolling direction in the horizontal direction and to deviating from direction displacement.
Along with this action, the working roll 3 of contact on the lower surface of stocking 2 declines downwards, and the space quantitative change that working roll is 3 is large, and the situation that stocking 2 is bitten in working roll 3 is removed.This is called to " carrying out the rapid release (opening fast) of stocking 2 ".By this, discharge rapidly, the injury to multi-stage rolling mill 1 when plate can be ruptured alleviates or eliminates, and can make the processing of plate split pieces become easy.
Particularly, as shown in Figure 3, when there is the fault of stocking 2 fractures in rolling etc., promptly make the backing roll 5a towards upstream side, move in the horizontal direction.Meanwhile, backing roll 5b is moved in the horizontal direction towards downstream.Now, holding-down device of hydraulic 9 is also driven rapidly, backing roll 5c is downward moved.So as shown in the chain-dotted line of Fig. 3, intermediate calender rolls 4 moves in the mode mutually deviating from downwards, the working roll 3 that is positioned in the state on this intermediate calender rolls 4 is (in the mode away from stocking 2) displacement D downwards, realizes the rapid release of stocking 2.
; in order to tackle the fracture defect of stocking 2; by backing roll 5 can above-below direction and/or horizontal direction superior displacement set, the backing roll 5b that makes the backing roll 5a along the upstream side of rolling direction in outermost backing roll 5 and downstream is in the horizontal direction and to deviating from direction displacement.Also can be matched with such shifting function, make backing roll 5c between the backing roll 5a at the upstream side along rolling direction in outermost backing roll 5 and the backing roll 5b in downstream on above-below direction and to the direction displacement that deviates from working roll 3.
Rapid release is like this undertaken by the control of not shown relieving mechanism.Relieving mechanism is from detecting tension force test section (not shown) acknowledge(ment) signal of the tension force of stocking 2, by tension force in rolling, sharply reduces or a plurality of plate speed in roll line become the abnormal situation of the speed difference of imagination etc. in detecting, and knows that stocking 2 has ruptured.When detecting stocking 2 and ruptured, promptly make 10 actions of roller space position control mechanism, carry out the rapid release of stocking 2.In addition, in the situation that operator recognizes the fracture of stocking 2, also can operator self with manual operation relieving mechanism.
In Fig. 4, present the curve map of example of the situation of the rapid release that represents present embodiment.
As shown in Figure 4, in the situation that make roller space position control mechanism 10 actions of present embodiment, as shown in chain-dotted line, in approximately 5 seconds, pore volume increases 4mm(and is released 4mm).Now, if holding-down device of hydraulic 9 single movements that possessed since making are in the past shown in dotted line, in approximately 0.5 second, pore volume increases 1mm increase.So, if this roller offsetting mechanism 10 and holding-down device of hydraulic 9 are moved simultaneously, in approximately 5 seconds, can realize the rapid release of 5mm, the injury to milling train during the fracture that can alleviate as far as possible stocking 2.
The amount of movement of the backing roll 5 being brought by roller space position control mechanism 10 can change according to the advance and retreat amount of the inclined degree on the inclined plane 12 of wedge parts 14, wedge parts 14.In addition,, by changing the flexible stroke of holding-down device of hydraulic 9, can change the amount of movement of the backing roll 5 being brought by holding-down device of hydraulic 9.In addition, the translational speed of roller space position control mechanism 10 self also can be by making the translational speed of drive division 15 accelerate to accelerate, if the translational speed of roller space position control mechanism 10 is accelerated, the translational speed of backing roll 5 also accelerates.
Fig. 5 is that the amount of movement that makes the backing roll 5 that brought by roller space position control mechanism 10 become greater to 6mm, makes the amount of movement of the backing roll 5 that brought by holding-down device of hydraulic 9 also become greater to the situation of 2mm.
In the example of Fig. 5, in the situation that making 10 action of roller space position control mechanism, as shown in chain-dotted line, in approximately 5 seconds, pore volume increase 6mm(is released 6mm).Now, if holding-down device of hydraulic 9 single movements that possessed since making are in the past shown in dotted line, in approximately 1 second, pore volume increases 2mm.So, if this roller offsetting mechanism 10 and holding-down device of hydraulic 9 are moved simultaneously, in approximately 5 seconds, can realize the rapid release of 8mm, the injury to milling train during the fracture that can alleviate reliably stocking 2.
The example of Fig. 6 is the example that the movement of the backing roll 5 that brought by roller space position control mechanism 10 is accelerated.
As shown in the example of Fig. 6, in the situation that making 10 action of roller offsetting mechanism, as shown in chain-dotted line, in approximately 2 seconds, pore volume increase 6mm(is released 6mm).Make the speed of holding-down device of hydraulic 9 identical with the situation of Fig. 5, shown in dotted line, in approximately 1 second, pore volume increases 2mm.So, if this roller offsetting mechanism 10 and holding-down device of hydraulic 9 are moved simultaneously, in approximately 2 seconds, can realize the rapid release of 8mm, the injury to milling train during the fracture that can alleviate reliably stocking 2.
As previously discussed, by use, possess the multi-stage type milling train of roller space position control mechanism 10, can carry out reliably the rapid release of stocking 2, the injury to milling train during the fracture that can alleviate as much as possible stocking 2.
In addition, in Fig. 1, exemplified with make backing roll 5a, 5b in the horizontal direction and move to the holding-down device of hydraulic 9 that deviates from the roller space position control mechanism 10 of direction displacement and be located on the backing roll 5c of downside central authorities simultaneously, but also roller space position control mechanism 10 can be located on backing roll 5d, the 5e of the upside that is positioned at stocking 2.That is, the backing roll that also can make displacement is for than the stocking 2 backing roll 5a~5c of side on the lower, and the backing roll that also can make displacement is the backing roll 5d~5f by upper side than stocking 2.The backing roll that also can make displacement for than stocking 2 on the lower side backing roll 5a~5c and than stocking 2 by both of the backing roll 5d~5f of upper side.
In a word, as the 1st embodiment, by below backing roll 5 on roller space position control mechanism 10 is set, pore volume can be discharged to about 2~8mm.By holding-down device of hydraulic 9 is moved together with this roller offsetting mechanism 10, pore volume can be discharged to 3~10mm left and right.
In addition,, by than backing roll 5 on the lower of stocking 2 and on than stocking 2 top sides' backing roll 5 both (two formulas), roller offsetting mechanism 10 being set, pore volume can be discharged to 4~16mm left and right.By holding-down device of hydraulic 9 is moved together with the roller space of this pair of formula position control mechanism 10, pore volume can be discharged to 5~18mm left and right.
That is,, by made the backing roll 5 of higher level's side end be shifted in the horizontal direction and to deviating from direction by roller space position control mechanism 10, also can carry out reliably the rapid release of stocking 2, the injury to milling train during the fracture that can alleviate as far as possible stocking 2.
[ the 2nd embodiment ]
In Fig. 7, represent the 2nd embodiment of relevant multiple roll type multi-stage rolling mill of the present invention.
In this multiple roll type multi-stage rolling mill, for the backing roll 5f of upside central authorities, be provided with roller space position control mechanism 10.The structure of this roller space position control mechanism 10 and the structure of the 1st embodiment are roughly the same.Difference is that the upper side at the backing roll 5f of upside central authorities is equipped with wedge parts 14.By the advance and retreat of these wedge parts 14, backing roll 5c moves up and down.
At length say, the backing roll 5f of upside central authorities is rotated supporting freely with the form of the 1st supporting mass of the long size shape along the side's of being equipped thereon side via axle support.The more upper side of the 1st supporting mass (with backing roll 5f opposition side) is the inclined plane along the axis direction of backing roll 5f.Separate predetermined distance with this inclined plane, be equipped with and form the tabular of long size and be fixed on the 2nd supporting mass on milling train housing 7.Between the 1st supporting mass and the 2nd supporting mass, the wedge parts 14 that are in the longitudinal direction chock shape are free to advance or retreat along the axis direction of backing roll 5f.By wedge parts 14 advance and retreat, backing roll 5f moves up and down.
In addition the holding-down device of hydraulic 9 that, changes pore volume in order to carry out thickness of slab control is located on the backing roll 5c that is provided in downside central authorities.
In the multiple roll type multi-stage rolling mill of the 2nd embodiment shown in Fig. 7, also during the fault of 2 fractures of the stocking in there is rolling etc., make 10 actions of roller space position control mechanism, promptly make the backing roll 5 of upside central authorities be moved upward.So intermediate calender rolls 4 deviates from and moves, be configured in this intermediate calender rolls 4 bottom state working roll 3 upward (with away from stocking 2 modes) mobile, space between working roll can be expanded.Meanwhile, if the holding-down device of hydraulic 9 of the backing roll 5 of downside central authorities is also promptly driven, the backing roll 5 of downside central authorities is downward moved, can realize space rapidly and discharge (space of 2~4mm left and right discharges).
; can be; by backing roll 5 can above-below direction superior displacement set, by backing roll 5c, 5f in outermost backing roll 5, between backing roll 5a, the 5d of the upstream side along rolling direction and backing roll 5b, the 5e in downstream on above-below direction and to the direction displacement that deviates from working roll 3.
In addition, the action of above-mentioned multiple roll type multi-stage rolling mill in addition and the action effect playing and the 1st embodiment are roughly same, so detailed explanation is omitted.
; variation as the 2nd embodiment; lower side at the backing roll 5c of downside central authorities is equipped with wedge parts 14; in order to carry out thickness of slab control, change the holding-down device of hydraulic 9 of pore volume being provided on the backing roll 5f of upside central authorities to arrange; also carry out roughly the same action, bring into play roughly the same action effect.
In addition, embodiment disclosed herein is all illustration aspect whole, and should not be considered to restrictive.Particularly, here in disclosed embodiment, there is no disclosed item expressly, the size such as operating condition or operating condition, various parameter, construct, weight, volume etc., adopt so long as common those skilled in the art just can not depart from scope that those skilled in the art implements conventionally the easily value of imagination.
Utilizability in industry
The present invention is suitable for multiple roll type multi-stage rolling mill.

Claims (8)

1. a multiple roll type multi-stage rolling mill, is characterized in that, has:
Working roll, rolling in-process stock;
Backing roll, supports above-mentioned working roll;
Roller space position control mechanism, makes above-mentioned backing roll at least one direction superior displacement of above-below direction and horizontal direction; And
Relieving mechanism, for above-mentioned working roll is moved to the direction that deviates from stocking, make the action of above-mentioned roller space position control mechanism so that in outermost above-mentioned backing roll, along the above-mentioned backing roll in the above-mentioned backing roll of the upstream side of rolling direction and downstream in the horizontal direction and to deviating from direction displacement.
2. multiple roll type multi-stage rolling mill as claimed in claim 1, is characterized in that,
Above-mentioned roller space position control mechanism is at least provided in than stocking on the lower on the above-mentioned backing roll of side.
3. a multiple roll type multi-stage rolling mill, is characterized in that, has:
Working roll, rolling in-process stock;
Backing roll, supports above-mentioned working roll;
Roller space position control mechanism, makes above-mentioned backing roll at above-below direction superior displacement; And
Relieving mechanism, for above-mentioned working roll is moved to the direction that deviates from stocking, make the action of above-mentioned roller space position control mechanism so that in outermost above-mentioned backing roll, the above-mentioned backing roll between the above-mentioned backing roll of the upstream side along rolling direction and the above-mentioned backing roll in downstream is on above-below direction and to the direction displacement that deviates from above-mentioned working roll.
4. the multiple roll type multi-stage rolling mill as described in any one in claim 1~3, is characterized in that,
Above-mentioned roller space position control mechanism has:
Wedge parts, have chock shape in the longitudinal direction, and are equipped with along the axis direction of above-mentioned backing roll;
Drive division, is located at the base end side of above-mentioned wedge parts, makes above-mentioned wedge parts along the axis direction advance and retreat of above-mentioned backing roll.
5. a method of operating for multiple roll type multi-stage rolling mill, is the method for operating of multiple roll type multi-stage rolling mill that has the working roll of rolling in-process stock and support the backing roll of above-mentioned working roll, it is characterized in that,
By above-mentioned backing roll can at least one direction superior displacement of above-below direction and horizontal direction set;
When the fracture of above-mentioned stocking, for above-mentioned working roll is moved to the direction that deviates from stocking, make in outermost above-mentioned backing roll, along the above-mentioned backing roll in the above-mentioned backing roll of the upstream side of rolling direction and downstream in the horizontal direction and to deviating from direction displacement.
6. the method for operating of multiple roll type multi-stage rolling mill as claimed in claim 5, is characterized in that,
Make in above-mentioned outermost above-mentioned backing roll, the above-mentioned backing roll between the above-mentioned backing roll of the upstream side along rolling direction and the above-mentioned backing roll in downstream is on above-below direction and to the direction displacement that deviates from above-mentioned working roll.
7. the method for operating of the multiple roll type multi-stage rolling mill as described in claim 5 or 6, is characterized in that,
At least make than above-mentioned stocking on the lower the above-mentioned backing roll of side be shifted when the fracture of above-mentioned stocking.
8. a method of operating for multiple roll type multi-stage rolling mill, is the method for operating of multiple roll type multi-stage rolling mill that has the working roll of rolling in-process stock and support the backing roll of above-mentioned working roll, it is characterized in that,
By above-mentioned backing roll can above-below direction superior displacement set;
When the fracture of above-mentioned stocking, for above-mentioned working roll is moved to the direction that deviates from stocking, make in outermost above-mentioned backing roll, the above-mentioned backing roll between the above-mentioned backing roll of the upstream side along rolling direction and the above-mentioned backing roll in downstream is on above-below direction and to the direction displacement that deviates from above-mentioned working roll.
CN201310387246.4A 2012-08-30 2013-08-30 The operating method of many roll shape multi-stage rolling mills and many roll shape multi-stage rolling mills Active CN103658180B (en)

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JP2013014425A JP6037853B2 (en) 2012-08-30 2013-01-29 Cluster type multi-high rolling mill and operation method of cluster type multi-high rolling mill

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CN105414202A (en) * 2015-12-30 2016-03-23 邢台海裕锂能电池设备有限公司 Rolling mill and rolling system capable of realizing online clearance adjustment
CN106140822A (en) * 2015-03-30 2016-11-23 宝钢不锈钢有限公司 The position feedback device of a kind of multi-roll mill working roll and position feedback control method thereof

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