CN100351023C - Multi roll mill with roll shape bending two dimension controlling - Google Patents

Abstract

The present invention relates to a two-dimension controlled multi-roller rolling mill of roller shape bending. The present invention comprises a machine frame, an upper tower-shaped roller system and a lower tower-shaped roller system, wherein an upper roller seat is arranged above the upper tower-shaped roller system; a lower roller seat is arranged under the lower tower-shaped roller system; screwdown devices are distributed and arranged between the upper roller seat and the inner side of a top plate; adjusting devices are arranged between the lower roller seat and a bottom plate; both of the upper roller seat and the lower roller seat are double-layer lamination split roller seats in vertical direction. The roller seats and work rollers can not influenced by the action of rolling force through the decomposition of the upper roller seat and the lower roller seat in horizontal and vertical directions, so the roller seats and the work rollers are not bent and deformed in horizontal and vertical directions. Simultaneously, accurate position relation is obtained among rollers in tower-shaped roller systems, so the manufacture cost, the installation cost and the maintenance cost of the rolling mill is greatly reduced.

Description

The multi-roll mill of roll forming bending two dimension control

Technical field

The present invention relates to a kind of multi-roll mill of roll forming bending two dimension control, especially a kind ofly will be arranged at the roller seat that tower rollers is fastened in the tunnel shape frame and decompose, make each roller in the tower rollers system on vertical and horizontal both direction, obtain the nature adjustment, realize the multi-roll mill of roll forming deflection degree control.

Background technology

In hundreds of years of plate sheet and strip technical development, the control of plate shape is the emphasis problem that the insider pays close attention to always, along with the appearance of changing into the novel rolling mill that acts on the roller seat top at working roll axle journal place of the active position of screwdown gear and adjusting device by the past, plate shape control problem has obtained good solution, and the dimensional accuracy of the lateral cross section of its finished product has obtained significantly improving.This novel rolling mill can be called the middle part and depress milling train according to its rolling place of application of force.

Depress in the milling train at the middle part, can control working roll shape of generatrix in vertical direction preferably by the technical scheme that depress at the middle part, but, in the operation of rolling of strip material, owing to also exist the component of horizontal direction in the tower rollers system, this component will cause the deflection deformation on the horizontal direction of roller seat, and then makes each roller produce horizontal deflection thereupon, has influenced the precision of rolled parts.In addition, along with to the improving constantly of finished product required precision, also in continuous raising, this has higher requirement with regard to the manufacturing of giving milling train to the required precision of milling train self.Manufacturing for multi-roll mill, positional precision between the roller of the various not same-actions in the roller system has comparatively significantly influence too to the rolling accuracy of milling train, for example, in 12 roller mills, the quality of the depth of parallelism between working roll, middle support rollers and the backing roller, determined the state that they are in contact with one another each other, when between certain two roller when not parallel, under the effect of roll-force, be easy to take place the distortion of roll forming, and the distortion of roll forming often occurs on the vertical and horizontal both direction.In the past in the multi-roll mill of Zhi Zaoing, the installation site of all rollers in the tower rollers system and mutual arrangement position relation are fixed, especially backing roller, owing to all be fixed on the roller seat, therefore, after the roller seat manufacturing was finished, the mutual alignment between the backing roller was also just fixing, that is to say that the parallel accuracy between the backing roller has been subjected to the influence of the roller seat accuracy of manufacture.When the transmission of roll-force distributes can not be balanced the time, its result tends to cause the shape of generatrix of some rollers to change, thereby causes the rolled parts precision to reduce.The milling train that roll is many more; this problem is just outstanding more; therefore; in the production of milling train, must guarantee machining accuracy, its required precision can surpass the precision of rolled parts usually; the difficulty and the cost of manufacturing, maintenance and the adjustment of milling train will have been improved so greatly; and, even like this, still can not fundamentally address this problem.

Summary of the invention

The objective of the invention is to the manufacturing that effectively to control roll forming and the high requirement that the accuracy of manufacture proposed of milling train to be caused milling train in the horizontal direction at above-mentioned existing milling train, the present situation that difficulty of safeguarding and adjusting and cost improve greatly, and the multi-roll mill that provides a kind of roll forming bending two dimension to control, this milling train is by carrying out the split setting to the roller seat that is arranged in the tunnel shape frame, make in the tower rollers system relation of the position between each roller have higher accuracy by adjustment naturally, eliminate roller seat and the deflection deformation in the horizontal direction of each roller simultaneously, can reduce the manufacturing cost of milling train.

For achieving the above object, the invention provides a kind of multi-roll mill of roll forming bending two dimension control, comprise frame and in frame, be separately positioned on the upper and lower both sides of rolled parts and to being much of tower rollers system and following tower rollers system, describedly go up the top that tower rollers is and be provided with roller seat; The below that described tower rollers down is is provided with lower roller base; Described frame is to surround a framework integral body that is tunnel shape vertically that constitutes by panel, backboard, top board and base plate; Described back plate surface offers the charging aperture that enters for strip material blank; Described panel surface offers the discharging opening for rolled parts output; Described go up is distributed with a plurality of screwdown gears of roll-force being provided and controlling described rolled parts shape of cross section of being used between roller seat and the described top board inboard; Be provided with the adjusting device that is used to carry described roll-force and controls described rolled parts shape of cross section between described lower roller base and the described base plate, described upward roller seat and lower roller base are and vertically divide the two stacked split roller seats of establishing, in the described split roller seat, with described go up tower rollers system or down the backing roller in the tower rollers system connect be layered as back sheet, what connect with described screwdown gear or adjusting device is layered as key-course; Described back sheet is that the axis backing piece in the same way by a plurality of axis and described backing roller constitutes side by side, and each described backing piece all with the corresponding connection of one or more described backing rollers, two described backing pieces that are positioned at the outside are resisted against the inner surface of described panel and backboard respectively.

In the technique scheme, a plurality of backing pieces that the backing roller is installed constitute the back sheet of roller seat side by side, constitute upward roller seat and lower roller base with key-course is common again, and are mounted on whole in the frame of tunnel shape.Because each roller in the tower rollers system during fabrication, all the processing of the cylindrical grinder by having certain precision grinds, therefore, himself can be relatively easy to obtain good machining accuracy, when these rollers being combined when constituting tower rollers and being, be under the backing block structure that is separated from each other at back sheet, contact each other can not be subjected to the restriction of roller seat, thereby can form good line contact, simultaneously, the distortion of roller seat can not take place also.In rolling, the backing piece that is separated from each other makes each roller in the tower rollers system be subjected to two dimension control in vertical and horizontal direction by the frame of horizontal direction and the key-course of vertical direction, has good shape of generatrix.

As shown from the above technical solution, the present invention decomposes in level and vertical direction by going up roller seat and lower roller base, make roller seat and working roll can not be subjected to the effect of roll-force and the deflection deformation of occurred level, vertical direction, also make simultaneously to obtain accurate position relation between each roller in the tower rollers system, manufacturing, installation and the maintenance cost of milling train are reduced greatly.

Below also the present invention is described in further detail in conjunction with the accompanying drawings by specific embodiment.

Description of drawings

Fig. 1 is the perspective view of first specific embodiment of the present invention;

Fig. 2 is the side-looking structural representation of second specific embodiment of the present invention;

Fig. 3 is the another kind of connecting mode schematic diagram of middle backing piece embodiment illustrated in fig. 2;

Fig. 4 is the perspective view of the 3rd specific embodiment of the present invention;

Fig. 5 is a Facad structure schematic diagram embodiment illustrated in fig. 4;

Fig. 6 is a kind of set-up mode schematic diagram of adjusting device of the present invention;

Fig. 7 is the part-structure schematic diagram of the 4th specific embodiment of the present invention;

Fig. 8 is the part-structure schematic diagram of the 5th specific embodiment of the present invention;

Fig. 9 is for forming the perspective view of the lining roller unit body of backing roller among the present invention;

Figure 10 is the structural representation of the backing roller of lining roller unit body composition shown in Figure 9;

Figure 11 is the coupling compound mode schematic diagram of backing roller shown in Figure 10 in milling train.

The specific embodiment

Figure 1 shows that the perspective view of the first embodiment of the present invention, present embodiment is one 12 roller mills, and it comprises frame 1 and is separately positioned on the upper and lower both sides of rolled parts and to being much of tower rollers system and following tower rollers is in frame 1.The top that last tower rollers is is provided with roller seat; The below that following tower rollers is is provided with lower roller base.Frame 1 is to surround a framework integral body that is tunnel shape vertically that constitutes by panel 11, backboard 12, top board 13 and base plate 14.Backboard 12 surfaces offer the charging aperture 121 that enters for strip material blank 102.Panel 11 surfaces offer the discharging opening 111 for rolled parts 101 outputs.Be distributed with two screwdown gears 5 that are used for providing roll-force and control described rolled parts shape of cross section (figure only illustrates a screwdown gear) between last roller seat and top board 13 inboards; Be provided with between lower roller base and the base plate 14 and be used to the adjusting device 6 that carries described roll-force and control described rolled parts 101 shape of cross sections.Last roller seat and lower roller base are and vertically divide the two stacked split roller seats of establishing, wherein, with last tower rollers system or three backing rollers 2 connect in the tower rollers system down is layered as back sheet, with screwdown gear 5 or adjusting device 6 fold establish connect be layered as key-course 32.Back sheet is to be constituted side by side by the equidirectional backing piece 31 of the axis of three axis and backing roller 2, and each backing piece 31 all with the 2 corresponding connections of a backing roller, two backing pieces 31 that are positioned at the outside are resisted against the inner surface of panel 11 and backboard 12 respectively.Outer surface at panel and backboard offers top-down groove 7 respectively.The roller seat up and down of present embodiment constitutes by the two large divisions, wherein forms back sheet by the backing piece 31 that is separated from each other and is set up in parallel.When milling train is worked, the roll-force of vertical direction is by screwdown gear 5 and adjusting device 6 carryings, and the deflection deformation on the disposal direction of control working roll, the rolling component of horizontal direction is carried on the frame by two backing pieces 31 in the outside, make the deflection deformation that backing piece 31 and whole roller seat and tower rollers system can the occurred level direction, reach the two dimension control of roll forming deflection degree.Groove 7 offer the manufactured materials cost that not only can save milling train 1 greatly, but also help to improve frame rigidity in the horizontal direction.

Figure 2 shows that the side-looking structure chart of second specific embodiment of the present invention, this embodiment is a mill, and it structurally is that with first difference of first embodiment the set-up mode of screwdown gear 5 takes two row's set-up modes.In the actual manufacturing of milling train, using, screwdown gear 5 can be arranged to forms single, many rows according to specific requirement, usually, quantity at the roller of tower rollers system is many more, under the state the such as just quantity of backing roller 2 diameters many more, backing roller 2 volume big more, roller seat up and down is big more, screwdown gear 5 can be set to many rows, for example three rows, four row or more rows.Second difference of present embodiment and above-mentioned first embodiment is in three backing pieces 31 that the backing piece 31 in the middle of being positioned at connects with two backing rollers 2 that are positioned at tower rollers system middle part.In the present embodiment, the connecting mode of backing piece 31 and backing roller 2 can also be taked mode (roller seat only is shown among the figure and goes up the structure of tower rollers system, the structure of tower rollers system was identical with it under lower roller base reached) as shown in Figure 3.In Fig. 3, backing piece 31 is two, and connects with two backing rollers 2 respectively.When milling train was worked, the rolling component of horizontal direction made two backing pieces 31 produce trend to two side shiftings, makes frame carry the rolling component of horizontal direction, thereby made the deflection deformation that whole roller seat and tower rollers system can the occurred level direction.

Figure 4 shows that the perspective view of the 3rd specific embodiment of the present invention, for simplicity, the inside of figure mid frame 1 only shows tower rollers system, goes up roller seat and screwdown gear 5, and the structure of following tower rollers system and lower roller base is symmetrical with it identical.Present embodiment also is 12 roller mills, and the difference of itself and above-mentioned first embodiment mainly is to be provided with lining plank 81 between the back sheet that is made of three backing pieces 31 and the key-course 32, and the size of these lining plank 81 areas can be according to concrete needs setting; Between the panel 11 of two backing pieces 31 in the outside and frame 1 and backboard 12, be folded with vertical liner plate 83.The setting of lining plank 81 and vertical liner plate 83; not only can play the surface of good protective effect to backing piece 31, key-course 32 and panel 11 and backboard 12; but also can adjust three depth of parallelisms between the backing piece 31; even can make between the backing piece 31 and and key-course 32, frame 1 between reach higher installation accuracy and need not when making backing piece 31, it is proposed higher accuracy of manufacture requirement.Lining plank 81 and vertical liner plate 83 itself can also be taked to be made up of backing plate amalgamation in a plurality of minutes, make backing piece 31 form multistage canal structure, in the operation of rolling, can effectively control the deflection degree of backing piece 31 like this, thereby make the deflection deformation of each roller on vertical and horizontal direction in the tower rollers system obtain good control; Secondly, the top board of the frame 1 in the present embodiment is also different with above-mentioned first embodiment, it takes the mode with top board, panel 11, backboard 12 hollow outs, kept the part that connects with screwdown gear 5, thereby form a back timber 131, have in frame 1 under the prerequisite of enough rigidity, particularly for the less milling train of roll-force, the less stressed or structure materials that do not stress on the suitable minimizing frame, to reducing the milling train manufacturing cost is favourable, does like this and can save the material cost that frame 1 is made; At last, the screwdown gear 5 of present embodiment that quantity is set is also different with first embodiment, as shown in Figure 5, this Fig. 5 is the Facad structure schematic diagram of present embodiment, for the sake of simplicity, frame has only kept back timber 131 parts and base plate 14 parts.As can see from Figure 5, the screwdown gear 5 of present embodiment is four, and is uniformly set between the key-course 32 and back timber 131 of tower rollers system, and four screwdown gears 5 constitute depresses the axial length of width less than key-course 32.The adjusting device 6 of present embodiment is two cushion blocks that are arranged on base plate 14 middle parts and have certain intervals each other, and length at interval can be according to the requirement of rolled parts plate shape control is set flexibly.In addition, adjusting device 6 also can adopt hydraulic cylinder, and as shown in Figure 6, nine hydraulic cylinders 6 are uniformly set on the base plate 14, and the interval between them also can be according to the requirement of rolled parts plate shape control is set flexibly.

Figure 7 shows that the part-structure schematic diagram of the 4th specific embodiment of the present invention, this embodiment is that with the difference of above-mentioned the 3rd embodiment the compound mode of screwdown gear 5 and lining plank 81 is different.Among the figure, six screwdown gears 5 are arranged side by side between key-course 32 and top board 13, and screwdown gear 5 spread length that forms equates with the axial length of key-course 32, like this, when the length of working roll during less than the axial length of key-course 32, the width range that roll-force applies has surpassed the working width scope of whole working roll, and when the length of working roll equaled the axial length of key-course 32, the width range that roll-force applies had covered the working width scope of whole working roll just.The different in width scope that roll-force applies working roll, can carry out different control to the shape of generatrix of working roll, in conjunction with parameters such as the width of the characteristic of rolling stock, rolled parts and rolling thicknesses, just can effectively control the shape of cross section (also being referred to as plate shape) of plate sheet and strip spare accurately again.In the present embodiment, screwdown gear 5 adopts manual depression to adjust modes, can adjust the pressure of 52 pairs of key-courses 32 of briquetting by rotary screw 51, by respectively each screwdown gear 5 being adjusted, can adjust roll-force everywhere flexibly, thereby effectively carry out the control of plate shape.In the present embodiment, so lining plank 81 is being taked the distributed combination mode with the difference of above-mentioned the 3rd embodiment by a plurality of lining planks 81.

Figure 8 shows that the part-structure schematic diagram of the 5th specific embodiment of the present invention, the difference of this embodiment and above-mentioned the 4th embodiment is screwdown gear 5, in the present embodiment, screwdown gear 5 adopts electronic mode, electric transmission machanism 53 is by the effect to briquetting 52, realization is exerted pressure to key-course 32, in addition, present embodiment adopts two screwdown gears 5, and be arranged in the axial length range of key-course 32, distance each other can require the length of setting a little or short according to the control of milled sheet shape, and present embodiment can be primarily aimed at the rolling of the narrower strip material of width and set.

In above-mentioned five specific embodiments, backing roller in the upper and lower tower rollers system can adopt a kind of the serial connection from beginning to end by bearing by a plurality of lining roller unit bodies to constitute, Figure 9 shows that the perspective view of lining roller unit body, among the figure, lining roller unit body 9 comprises that mandrel 91 and ring are arranged on the columniform collars 92 of these mandrel 91 outer surfaces week.Two end faces of collars 92 all inwardly offer ring-shaped depression groove 93 around mandrel 91 along the axis of this collars 92, make the axial section of collars 92 be one " worker " font.Figure 10 shows that the structural representation that adopts lining roller unit body to form the backing roller, among the figure, four lining roller unit bodies are set in the interior ring of a bearing 10 simultaneously by mandrel 91 ends that bearing 10 head and the tail compose in series two adjacent lining roller unit bodies that a backing roller is connected in series from beginning to end, two ends of bearing 10 be absorbed in respectively two adjacent lining roller unit bodies on ring-shaped depression groove 93 in, like this can be under the size that does not reduce bearing 10, obtain the surface area of big as far as possible collars 92, make in the milling train, the contact area of the roller that the backing roller contacts with other is enough big, support for the operation of rolling provides good backing, this effect for the large-sized strip mill is more obvious.The mounting means of backing roller is that bearing 10 is installed in roller seat by bearing block or divides on the roller seat (lower roller base is identical with the installation form of last roller seat, so do not give unnecessary details).In the combination of milling train backing roller, when adopting a plurality of as shown in figure 10 backing roller, can take compound mode as shown in figure 11.Among Figure 11, three fixedly connected side by side being arranged on the milling train of backing roller, its set-up mode is gap 93 interlaced with each other being set up in parallel between the collars 92 that makes on two adjacent backing rollers, be specially, on two ends of middle backing roller, adopt long collars 92, staggered with the gap 93 on adjacent two backing rollers in gap 93 between the short collars 92 at itself and middle part, thereby cause in three backing rollers gap 93 settings interlaced with each other on two adjacent backing rollers.Be crisscross arranged like this, the impression that the edge that can make a collars 92 causes the surface of other rollers in the tower rollers system by the collars 92 of other backing rollers by squeezing into the horizontal reset adjustment, thereby make the surface of rolled parts more attractive in appearance.

It should be noted last that, above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement, and not break away from the spirit and scope of the present invention the present invention.

Claims (10)

1, the multi-roll mill of a kind of roll forming bending two dimension control comprises frame and is separately positioned on the upper and lower both sides of rolled parts and to being much of tower rollers system and following tower rollers system in frame, describedly goes up the top that tower rollers is and is provided with roller seat; The below that described tower rollers down is is provided with lower roller base; Described frame is to surround a framework integral body that is tunnel shape vertically that constitutes by panel, backboard, top board and base plate; Described back plate surface offers the charging aperture that enters for strip material blank; Described panel surface offers the discharging opening for rolled parts output; Described go up is distributed with a plurality of screwdown gears of roll-force being provided and controlling described rolled parts shape of cross section of being used between roller seat and the described top board inboard; Be provided with the adjusting device that is used to carry described roll-force and controls described rolled parts shape of cross section between described lower roller base and the described base plate, it is characterized in that: described upward roller seat and lower roller base are and vertically divide the two stacked split roller seats of establishing, in the described split roller seat, with described go up tower rollers system or down the backing roller in the tower rollers system connect be layered as back sheet, what connect with described screwdown gear or adjusting device is layered as key-course; Described back sheet is that the axis backing piece in the same way by a plurality of axis and described backing roller constitutes side by side, and each described backing piece all with the corresponding connection of one or more described backing rollers, two described backing pieces that are positioned at the outside are resisted against the inner surface of described panel and backboard respectively.

2, multi roller band mill according to claim 1 is characterized in that the outer surface of described panel and/or backboard offers groove from top to bottom.

3, the multi-roll mill of roll forming bending two dimension control according to claim 1 is characterized in that described screwdown gear is hydraulic cylinder or electronic pressue device or manual pressure device.

4,, it is characterized in that described screwdown gear is in single mode or with the setting that evenly distributes of many rows' mode according to the multi-roll mill of claim 1, the control of 2 or 3 described roll forming bending two dimensions.

5, the multi-roll mill of roll forming bending two dimension control according to claim 1 is characterized in that described adjusting device is hydraulic cylinder or cushion block, and the quantity of this adjusting device is one or more.

6, the multi-roll mill of roll forming bending two dimension according to claim 5 control is characterized in that the setting that evenly distributes of described a plurality of adjusting device.

7, according to the multi-roll mill of claim 1,2,3,5 or 6 described roll forming bending two dimension controls, it is characterized in that also being provided with lining plank between described back sheet and the described key-course.

8,, it is characterized in that being folded with vertical liner plate between described backing piece and described panel and/or the backboard according to the multi-roll mill of claim 1,2,3, the control of 5 or 6 described roll forming bending two dimensions.

9, the multi-roll mill of roll forming bending two dimension control according to claim 1 is characterized in that described backing roller is to be connected in series from beginning to end by bearing by a plurality of lining roller unit bodies to constitute; Described lining roller unit body comprises that mandrel and ring are arranged on the columniform collars of this mandrel outer surface week, two end faces of described collars all inwardly offer ring-shaped depression groove around described mandrel along the axis of described collars, the axial section of described collars is " worker " font; The end of two adjacent described lining roller unit bodies of head and the tail serial connections is set in the interior ring of a bearing simultaneously, and this bearing is installed in by bearing block and describedly goes up on roller seat and the lower roller base or be installed on described minute roller seat.

10, the multi-roll mill of roll forming bending two dimension control according to claim 9, the set-up mode that it is characterized in that described a plurality of backing rollers is interlaced with each other being set up in parallel in gap between the described collars that makes on two adjacent backing rollers.

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