Stainless steel band straightening machine and process lubrication system thereof
Technical field
The utility model relates to the straightening machine of stainless steel band and is used for its lubricated process lubrication system.
Background technology
In the steel production enterprise at home and abroad, cold rolling mill particularly is for the plate shape (especially wave degree) of control finished product steel belt has all been done considerable work.The early stage multi roll aligning that is adopted has played good effect for the plate shape of improving band steel more than the 1.0mm.But along with the continuous development of steel industry, the user is also increasing to the use amount of strip, and at this moment, the problem that strip plate shape is not good enough has just occurred.Through groping of long duration, the mode of tension straingtening has solved this problem, promptly uses bigger tensile stress that " fibre length " reached unanimity, and short fiber is extended more, the long fibre extension is lacked some even is compressed, thereby reaches the purpose of improving plate shape.The mode of this tension straingtening obtained popularizing faster in a period of time.The mode of tension straingtening is big because of required tension force, causes broken belt easily, and also power consumption and higher to the rigidity and the requirement of strength of equipment simultaneously is so the tension straingtening that tension force stretching combines with roll straightening has just been arisen at the historic moment.
At present in metallurgy industry, seven-roll Abramsen machine (being called for short the straightening machine) is widely used, and particularly in the thin plate finishing process of straight carbon steel class, has played remarkable effect aspect the plate shape improving, and technology is also very ripe.Along with improving constantly of people's living standard, both at home and abroad to the corresponding increase of stainless demand benefit.And stainless product quality also had higher requirement.The quality of the key equipment as the thin strip finishing----straightening machine or level just just are directly connected to the quality of stainless steel product quality.
Domestic and international many stainless steel enterprise still draws the straightening machine of straight carbon steel to come the finishing stainless steel in employing, promptly comes the straightening stainless steel band with the one curved one dried straightening process of rectifying.As shown in Figure 1, along the stainless steel band direction of transfer, the straightening machine is respectively inlet S type jockey pulley 1 from left to right, inlet carrying roller 2, bending roll group 3, smoothing roll group 4, outlet S type jockey pulley 5.Stainless steel band passes through the stretching of jockey pulley 5 again through the bending straightening effect of bending roll group 3 and smoothing roll group 4.Like this, the stainless steel surfaces fineness of producing is relatively poor, particularly the very high BA plate of surperficial brightness requirement is produced, and to the grinding of working roll, changes the conditional request harshness, does not note slightly, will exert an influence to BA plate surface; In addition, the corrosion resistant plate shape of adopting this process to produce is not satisfactory.
Summary of the invention
The purpose of this utility model is to provide a kind of stainless steel straightening machine, solve defective and deficiency that the one curved one dried straightening technology of rectifying exists, a kind of process lubrication system also is provided simultaneously, solves that bending roll and smoothing roll damage stainless steel surfaces easily in original straightening machine equipment, influence the problem of plate shape.
The purpose of this utility model is achieved through the following technical solutions:
A kind of stainless steel band straightening machine, comprise frame, inlet S type jockey pulley, the inlet carrying roller, outlet S type jockey pulley, also comprise: one is arranged on the antecurvature curved roll group of inlet after the carrying roller, a back bending roll group that keeps at a certain distance away and be provided with described antecurvature curved roll group, and one is arranged on the smoothing roll group between described back bending roll group and the described outlet S type jockey pulley.
Wherein, described antecurvature curved roll group comprises is located at the stainless steel band identical roller group of structure of both sides up and down respectively, described each side roller group comprises: 1 diameter is 35 millimeters elongated working rolls that are abutted against mutually with stainless steel band, 2 diameters are 50 millimeters elongated intermediate calender rolls near described elongated working roll, 3 diameters are 65 millimeters short backing rolls near described elongated intermediate calender rolls, and lift device, the two ends connection bearing bearing of described each side roller group soon.
Wherein, described back bending roll group is identical with described antecurvature curved roll group structure.
Wherein, described smoothing roll group comprises: be installed in 2 lower roll groups that go up pressure roller and be positioned at the stainless steel band below of stainless steel band top, the structure of described lower roll is identical with the either side structure of described antecurvature curved roll group.
Wherein, carrying roller in the middle of also being provided with between described back bending roll group and the described smoothing roll group.
A kind of process lubrication system that is used for lubricated stainless steel band straightening machine, has cavity in the frame of described straightening machine, one oil groove is arranged in the cavity, be installed on coarse filter, oil pump, fine filter on the oil groove flowline successively, cooler, regulate flow valve, described adjusting flow valve links to each other with described straightening machine body, is used to regulate the oil mass that flows into the straightening machine.
Wherein, also be provided with an overflow pipe between described fine filter and the described cooler, described overflow pipe one end is equipped with overflow valve, and the other end connects described oil groove.
Wherein, also be provided with a drainback passage between described straightening machine body and oil groove, drainback passage is provided with a magnetic filter, in order to filter the metallic particles that the straightening machine brings out.
Positive progressive effect of the present utility model is: the stainless steel band surface that straightening is come out through stainless steel band straightening machine described in the utility model " two curved rectify " is highly polished, and plate shape is good, can improve 1% lumber recovery; Because the effect of lubricating system has reduced the wearing and tearing of working roll, enhance productivity simultaneously.
Description of drawings
Fig. 1 is that the straightening machine equipment of prior art " curved rectifys " is formed schematic diagram.
Fig. 2 is that straightening machine equipment of the present utility model is formed schematic diagram.
Fig. 3 is 4 ' a partial enlarged drawing among Fig. 2.
Fig. 4 is straightening machine process lubrication system figure.
The specific embodiment
Provide preferred embodiment of the utility model below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 2, stainless steel band straightening machine described in the utility model comprises inlet S type jockey pulley 1 ', inlet carrying roller 2 ', outlet S type jockey pulley 5 ', also comprise: one is arranged on the antecurvature curved roll group 31 after the inlet carrying roller, one is arranged on smoothing roll group 4 ' between back bending roll group 32 and the outlet S type jockey pulley 5, carrying roller 6 in the middle of also being provided with between back bending roll group and the institute's smoothing roll group with the keep at a certain distance away back bending roll group 32, that is provided with of antecurvature curved roll group 31.Wherein, antecurvature curved roll group 31 is identical with the structure of back bending roll group 32, be and be located at stainless steel band both sides and the paired roller group of using up and down respectively, each side roller group comprises: 1 diameter is that 35 millimeters elongated working roll, 2 diameters are that 50 millimeters elongated intermediate calender rolls, 3 diameters are 65 millimeters short backing roll group, and lift device soon.Smoothing roll group 4 ' comprises pressure roller and lower roll group, and wherein the structure of lower roll group is identical with the structure of antecurvature curved roll group 31, back bending roll group 32.
Fig. 3 shows the enlarged drawing (being part that dashed rectangle marks among Fig. 2) of smoothing roll group 4 ', comprise: be installed in pressure rollers 4 ' 1 on 2 that stainless steel band top and stainless steel band be abutted against mutually, with the lower roll group that is positioned at the stainless steel band below, specifically comprise: 1 diameter is 35 millimeters an elongated working roll 4 ' 2,2 diameters are 50 millimeters elongated intermediate calender rolls 4 ' 3,3 diameters are 65 millimeters short backing roll group 4 ' 4, and lift the device (not shown) soon.
In the present embodiment, inlet S type jockey pulley 1 ' is identical with outlet S type jockey pulley 5 ' structure, by the roller of the diameter 800mm of 4 outer lining polyurethane, whole frame, 2 hydraulically powered pressure rollers, gear coupling, reduction box and 4 governor motor composition independently.According to the specific requirement of production line, inlet S type jockey pulley 1 ' can be adjusted with a few parameters of outlet S type jockey pulley 5 '.
Inlet carrying roller 2 ' in the present embodiment mainly is made up of roller, the frame of the diameter 520mm of 1 outer lining polyurethane, and it act as guarantees that steel band operates on the absolute altitude by line, and the while also effectively prevents " vibration " of steel band.
Antecurvature curved roll group in the present embodiment and back bending roll group play the percentage elongation of adjusting steel band, thereby improve the effect of vertical plate shape.The effect of lifting device soon is to work as the steel band weld seam through out-of-date fast lifting roller group, avoids abrading working roll.
Fig. 4 is a stainless steel band straightening machine process lubrication system schematic diagram of the present utility model.As shown in the figure, has cavity in the frame of straightening machine, one oil groove 16 is arranged in the cavity, be installed on coarse filter 9 on the oil groove flowline successively, oil pump 10, fine filter 11, cooler 12, regulate flow valve 13, described adjusting flow valve links to each other with described straightening machine body, is used to regulate the oil mass that flows into the straightening machine.Also be provided with an overflow pipe 15 between fine filter 11 and described cooler 12, which is provided with overflow valve 14, the other end connects oil groove 16.Also be provided with a drainback passage 7 between straightening machine body and oil groove, drainback passage 7 is provided with a magnetic filter 8, in order to filter the metallic particles that the straightening machine brings out.
The operation principle of this process lubrication system is: lubricating oil comes out from oil groove 16, at first passes through the filtration of coarse filter 9, the big impurity particle in the filtering fluid; Oil pump 10 extracts fluid, enters fine filter 11, fine particle in the filtering fluid; Because through the processing of aforementioned process, oil liquid temperature raises, and cools off so will enter cooler 12; Also be provided with an overflow pipe 15 and overflow valve 14 before the cooler 12, be used to regulate the fuel-displaced too much situation of oil pump; The cooled fluid straightening machine head of flowing through is used to lubricate, and can guarantee that also the temperature of straightening head is unlikely to too high simultaneously; Regulate flow valve 13 and be used to regulate the flow size, avoid fluid too much or very few; For recycling lubricating oil, thus drainback passage 7 between straightening machine body and oil groove, be provided with, and have part metals particle or chip from the lubricating oil that the straightening head comes out, therefore on drainback passage, be provided with magnetic filter 8 and filter.Metallic particles or the chip of having avoided straightening to bring out flows to straightening head, scratch surface again so, on the one hand; Also protect simultaneously the cleaning of lubricating oil to greatest extent, can not cause the pollution of steel band.Through the sufficient lubrication of oil, the wearing and tearing of working roll have been protected greatly, the corresponding steel strip surface quality that also guaranteed.
Though more than described the specific embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to embodiment.Therefore, protection domain of the present utility model is limited by appended claims.