CN113145688A - Online straightening device and process for wide and thick plates - Google Patents
Online straightening device and process for wide and thick plates Download PDFInfo
- Publication number
- CN113145688A CN113145688A CN202110424981.2A CN202110424981A CN113145688A CN 113145688 A CN113145688 A CN 113145688A CN 202110424981 A CN202110424981 A CN 202110424981A CN 113145688 A CN113145688 A CN 113145688A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- straightened
- plate
- straightening
- unevenness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
Abstract
The invention discloses an on-line straightening device and a process for a wide and thick plate, which comprise a driving device, a plate shape instrument, a carrier roller, a straightening machine and a straightened steel plate; the straightened steel plate is supported by the carrier rollers, is driven by the driving device, is firstly measured by the shape meter to be uneven within the length range of the shape meter, and is then straightened by the straightening machine under the control of the central control system; in the straightening process of the steel plate to be straightened, a central control system controls the introduction of pulse current according to the unevenness of the steel plate to be straightened; the invention adopts a method of introducing pulse current in the straightening process, on one hand, the plasticity of the plate is improved through the thermoelectric effect and the electro-plasticity effect, so that the plate is deformed more uniformly in the straightening process; on the other hand, the residual stress generated in the straightening process is eliminated by utilizing the characteristics of the pulse current, the on-line continuous straightening of the plate in the width range of the straightener is realized, and the straightening efficiency and the straightening quality of the wide and thick plate are greatly improved.
Description
Technical Field
The invention belongs to the technical field of steel plate straightening, and particularly relates to an online straightening device and process for a wide and thick plate.
Background
The wide and thick plates are widely applied to the fields of ships, large bridges, nuclear power plants, large dams, oil field drilling platforms, large machinery and the like, along with the development of economy and the progress of science and technology, the requirements of the wide and thick plates are gradually increased, and meanwhile, the requirements of various industries on the unevenness of the wide and thick plates are higher and higher. At present, the unevenness of wide and thick plates actually produced in a factory is far from meeting the requirement, so the wide and thick plates generally need to be straightened by a straightening machine. The wide and thick plate cannot be straightened through the roller type straightening machine due to the width and the thickness, the unevenness of the steel plate needs to be improved by means of the pressure straightening machine, the pressure straightening often needs a plurality of straightening processes to enable the steel plate to meet the unevenness requirement, the efficiency is low, the cost is high, the physical straightening easily generates residual stress, and the service life of the wide and thick plate is influenced.
The patent with publication number CN206810896U discloses a steel plate leveling system for eliminating residual stress by ultrasonic, which realizes the elimination of the residual stress of the steel plate after being straightened by arranging an ultrasonic residual stress detecting and eliminating device behind a straightening machine, and the method of the ultrasonic residual stress is not ideal for the elimination effect of the residual stress after being straightened by a wide thick plate.
The patent with the publication number of CN111167884B discloses a device and a straightening method for straightening medium and thick plates, wherein the device mainly utilizes a thermal stress forming technology to replace an elastic-plastic deformation straightening method, and a straightened plate is heated by electromagnetism to be thermally deformed to finish the straightening process, but for a metal plate with poor magnetic permeability, the energy consumption is too high, and the straightening precision is difficult to control accurately.
Therefore, an on-line straightening device which is high in efficiency, low in cost and capable of eliminating residual stress is needed for straightening wide and thick plates.
Disclosure of Invention
The invention provides an on-line straightening device and process for a wide and thick plate, aiming at the problems, and the device and process are used for improving the straightening precision, efficiency and quality of the wide and thick plate.
In order to achieve the aim, the technical scheme adopted by the invention is to provide an on-line wide and thick plate straightening device which comprises a driving device, a plate shape instrument, a straightening machine, a carrier roller and a straightened steel plate; the straightened steel plate is supported by the carrier roller and driven by the driving device; the unbalancing degree of the steel plate to be straightened in the length range of the shape gauge is measured by the shape gauge, and then the steel plate to be straightened is straightened by the straightening machine under the control of a central control system; in the straightening process of the steel plate to be straightened, a central control system of the straightening machine controls the introduction of pulse current according to the unevenness of the steel plate to be straightened;
the driving device comprises a rack, a lifting hydraulic cylinder, a first guide column, a bottom plate, a first linear bearing, a horizontal hydraulic cylinder, a case cover, a driving motor, a sliding rail, a sliding block, a driving shaft and a driving roller; the frame is fixed on a foundation, and the bottom plate is installed on the frame; the four corners of the top surface of the bottom plate are respectively provided with the first linear bearings, the center of the bottom surface of the bottom plate is provided with the lifting hydraulic cylinder, the four corners of the bottom surface of the mobile platform are respectively provided with the first guide columns, and each group of the first guide columns and the first linear bearings are coaxially arranged; the center of the bottom surface of the mobile platform is fixedly connected with the top of a piston rod of the lifting hydraulic cylinder; the horizontal hydraulic cylinder is installed at one end of the top surface of the mobile platform, and two groups of slide rails are installed at two sides of the top surface of the mobile platform; the four corners of the bottom surface of the case are respectively provided with the sliding blocks, and the sliding blocks are slidably arranged on the sliding rails; a transmission gear is arranged in the case, one end of the bottom surface of the case is fixedly connected with the top of the piston rod of the horizontal hydraulic cylinder, and the case cover is arranged on the case; the driving motor is mounted on the case cover, the driving shaft and the driving roller are rotatably mounted between the case and the case cover, and the driving motor transmits power to the driving roller through a transmission gear in the case and the driving shaft;
the shape meter comprises an upright post, a displacement sensor, an installation platform, a cylindrical rack, a second guide post, an upper template, a second linear bearing, a gear box, a motor, a speed reducer and a sleeve; the four upright columns are fixed on a foundation, and the top of each upright column is fixedly provided with the upper template; two second linear bearings are mounted at two ends of the top surface of the upper template, and the gear box, the motor, the speed reducer and the sleeve are fixedly mounted in the center of the top surface of the upper template; the cylindrical rack is coaxially arranged in the sleeve; the bottom of the cylindrical rack is fixedly connected with the center of the top surface of the mounting platform; two groups of second guide posts are fixedly mounted at two ends of the top surface of the mounting platform, and each group of second guide posts and the second linear bearing are coaxially mounted; the displacement sensor dot matrix is arranged at the lower part of the mounting platform; the supporting roller is fixedly arranged below the shape meter; the carrier roller is composed of a carrier roller base and a plurality of groups of row rollers;
the straightening machine comprises a straightening machine base, a guide support, a hydraulic head, an electrode, an upper pressing plate, a third linear bearing, a top plate and a synchronous hydraulic cylinder; the straightener base is fixed on a foundation, and two groups of guide supports are fixedly arranged at two ends of the straightener base; the top plate is fixedly arranged at the top of the guide support; two third linear bearings are mounted at two ends of the upper pressure plate, and each group of guide bearings and the third linear bearings are coaxially mounted; the upper pressing plate is arranged between the straightener base and the top plate; the four corners of the top surface of the top plate are respectively and fixedly provided with the synchronous hydraulic cylinders; the synchronous hydraulic cylinders act in a consistent manner, and the top of the piston rod of the synchronous hydraulic cylinder is fixedly connected with the top surface of the upper pressure plate; and dot matrixes consisting of the electrodes and the hydraulic heads are alternately arranged on the upper pressing plate and the straightener base.
Further, the symmetrical surfaces of the carrier roller, the plate shape gauge and the straightening machine are located in the same plane, and the driving devices are symmetrically arranged on two sides of the plane.
Further, the displacement sensor, the electrode and the hydraulic head are all embedded with balls with corresponding specifications.
Preferably, the hydraulic systems of the hydraulic heads are independent of each other, that is, the high position and the low position of each hydraulic head can be controlled independently.
Preferably, the electrodes are insulated from the mounting platform, i.e. whether each electrode is electrified or not can be independently controlled;
the wide and thick plate on-line straightening process utilizes the wide and thick plate on-line straightening device, and is characterized by comprising the following steps of:
s1, measuring the thickness of the steel plate to be corrected, and adjusting the height of the driving device according to the thickness of the steel plate to be corrected to enable the horizontal symmetry plane of the driving roller and the steel plate to be corrected to be located in the same plane;
s2, adjusting the height of the mounting platform of the shape gauge to enable the top of each displacement sensor to be in close contact with the upper surface of the corrected steel plate, starting the driving device, and setting the initial rotating speed of the driving roller;
s3, the shape gauge measures the conveying speed of the straightened steel plate, and simultaneously, the shape gauge measures the unevenness of the straightened steel plate within the length range of the shape gauge and feeds data back to a central control system of the straightening machine;
s4, controlling the straightening machine to straighten the section of the steel plate to be straightened according to the unevenness of the section of the steel plate to be straightened by the central control system of the straightening machine;
s41, if the unevenness of the steel plate to be corrected is less than or equal to a first set value of the unevenness, the steel plate to be corrected does not need to be straightened, and the shape meter measures the unevenness of the next steel plate to be corrected;
s42, if the unevenness is larger than a first set value and smaller than or equal to a second set value, the central control system of the straightening machine reduces the conveying speed of the steel plate to be straightened, the height of each hydraulic head is adjusted according to the unevenness of the steel plate to be straightened, pulse current is introduced along the steel plate to be straightened through the first two groups of electrodes, and the straightening machine straightens the steel plate to be straightened;
s43, if the unevenness is larger than the second set value and smaller than or equal to the third set value, the central control system of the straightening machine further reduces the conveying speed of the steel plate to be straightened, the height of each hydraulic head is adjusted according to the unevenness of the steel plate to be straightened, pulse current is introduced along the steel plate to be straightened through four groups of electrodes, and the straightening machine straightens the steel plate to be straightened;
s44, if the unevenness is larger than a third unevenness set value, the central control system of the straightening machine controls the driving device to be powered off, namely, the transmission of the steel plate to be straightened is stopped, the height of each hydraulic head is adjusted, pulse current is introduced along the steel plate to be straightened through seven groups of electrodes, and the straightening machine straightens the steel plate to be straightened;
s5, and S1 to S4, finishing the straightening of the whole section of the steel plate to be straightened.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
(1) according to the wide and thick plate on-line straightening device and the wide and thick plate on-line straightening process, pulse current is introduced in the straightening process of the wide and thick plate, and the plasticity of the plate is improved through the thermoelectric effect and the electro-plastic effect, so that the plate is uniformly deformed in the straightening process, and the generation of residual stress is reduced; meanwhile, the stress of a hydraulic head is reduced, and the service life of the straightening equipment is prolonged;
(2) the invention eliminates the residual stress generated in the straightening process by utilizing the characteristics of the pulse current, realizes the on-line continuous straightening of the wide and thick plate within the width range of the straightener, improves the automation and intellectualization degree of the wide and thick plate straightening process, greatly saves the manpower, and greatly improves the straightening efficiency and the straightening quality of the wide and thick plate.
Drawings
FIG. 1 is a flow chart of the operation of the on-line wide and thick plate straightening device of the invention;
FIG. 2 is a three-dimensional structure diagram of the on-line straightening device for the wide and thick plate of the invention;
FIG. 3 is a three-dimensional structure diagram of a driving device of the on-line wide and thick plate straightening device of the invention;
FIG. 4 is a three-dimensional structure diagram of a driving device part of the on-line straightening device for the wide and thick plate of the invention;
FIG. 5 is a three-dimensional structure diagram of a plate shape instrument of the on-line straightening device for wide and thick plates of the present invention;
FIG. 6 is a three-dimensional structure diagram of a straightener of the on-line straightening device for wide and thick plates of the invention;
FIG. 7 is a structural view of an electrode of a straightener of the on-line straightener for wide and thick plates of the invention;
FIG. 8 is a schematic view showing the installation of the plate shape gauge and the straightening machine component of the on-line straightening device for wide and thick plates of the present invention.
The main reference numbers:
1-a drive device; 101-a frame; 102-lifting hydraulic cylinders; 103-a first guide post; 104-a backplane; 105-a first linear bearing; 106-horizontal hydraulic cylinder; 107-a chassis; 108-cabinet lid; 109-a drive motor; 110-a slide rail; 111-a slider; 112-a drive shaft; 113-a drive roller; 2-a plate shape instrument; 201-upright column; 202-a displacement sensor; 203-a mounting platform; 204-cylindrical rack; 205-a second guide post; 206-upper template; 207-a second linear bearing; 208-a gearbox; 209-motor; 210-a reducer; 211-a sleeve; 3-a corrected steel plate; 4-straightening machine; 401-straightener base; 402-a guide support; 403-hydraulic head; 404-an electrode; 405-an upper platen; 406-a third linear bearing; 407-a top plate; 408-a synchronous hydraulic cylinder; 5-carrying roller; 501-carrier roller base; 502-rows of rollers.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains. For example, front, rear, left and right are used for the present invention only for exemplary purposes and are words of convenience for description.
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
As shown in FIG. 2, the invention discloses an online straightening device for wide and thick plates, which comprises a driving device 1, a plate shape instrument 2, a straightening machine 4, a carrier roller 5 and a steel plate 3 to be straightened; the steel plate 3 to be straightened is supported by the carrier roller 5 and is driven by the driving device 1; the method comprises the following steps that firstly, the unevenness of a steel plate 3 to be straightened in the length range of a shape meter 2 is measured by the shape meter 2, and then the steel plate 3 to be straightened is straightened by a straightening machine 4 under the control of a central control system; in the straightening process of the steel plate 3 to be straightened, a central control system of the straightening machine 4 controls the introduction of pulse current according to the unevenness of the steel plate 3 to be straightened;
in the above technical solution, as shown in fig. 3, the driving device 1 includes a frame 101, a lifting hydraulic cylinder 102, a first guide post 103, a bottom plate 104, a first linear bearing 105, a horizontal hydraulic cylinder 106, a chassis 107, a chassis cover 108, a driving motor 109, a slide rail 110, a slider 111, a driving shaft 112, and a driving roller 113; the frame 101 is fixed on a foundation, and a bottom plate 104 is arranged on the frame 101; four corners of the top surface of the bottom plate 104 are respectively provided with a first linear bearing 105, the center of the bottom surface of the bottom plate 104 is provided with a lifting hydraulic cylinder 102, four corners of the bottom surface of the moving platform are respectively provided with a first guide column 103, and each group of the first guide columns 103 and the first linear bearings 105 are coaxially arranged; the center of the bottom surface of the mobile platform is fixedly connected with the top of a piston rod of the lifting hydraulic cylinder 102; one end of the top surface of the mobile platform is provided with a horizontal hydraulic cylinder 106, and two sides of the top surface of the mobile platform are provided with two groups of slide rails 110; four corners of the bottom surface of the case 107 are respectively provided with a slider 111, and the sliders 111 are slidably mounted on the slide rails 110; a transmission gear is arranged in the case 107, one end of the bottom surface of the case 107 is fixedly connected with the top of a piston rod of the horizontal hydraulic cylinder 106, and a case cover 108 is arranged on the case 107; a driving motor 109 is arranged on the chassis cover 108, a driving shaft 112 and a driving roller 113 are rotatably arranged between the chassis 107 and the chassis cover 108, and the driving motor 109 transmits power to the driving roller 113 through a transmission gear in the chassis 107 and the driving shaft 112;
as shown in fig. 4, the plate shape gauge 2 includes a column 201, a displacement sensor 202, a mounting platform 203, a cylindrical rack 204, a second guide column 205, an upper template 206, a second linear bearing 207, a gear box 208, a motor 209, a reducer 210, and a sleeve 211; four upright posts 201 are fixed on the foundation, and an upper template 206 is fixedly arranged at the tops of the upright posts 201; two second linear bearings 207 are arranged at two ends of the top surface of the upper template 206, and a gear box 208, a motor 209, a speed reducer 210 and a sleeve 211 are fixedly arranged at the center of the top surface of the upper template 206; a cylindrical rack 204 is coaxially arranged in the sleeve 211; the bottom of the cylindrical rack 204 is fixedly connected with the center of the top surface of the mounting platform 203; two groups of second guide posts 205 are fixedly mounted at two ends of the top surface of the mounting platform 203, and each group of second guide posts 205 and the second linear bearing 207 are coaxially mounted; the lower part of the mounting platform 203 is provided with a displacement sensor 202 lattice; a supporting roller 5 is fixedly arranged below the shape meter 2; the carrier roller 5 consists of a carrier roller base 501 and a plurality of groups of row rollers 502;
as shown in fig. 5, the leveler 4 includes a leveler base 401, a guide support 402, a hydraulic head 403, an electrode 404, an upper platen 405, a third linear bearing 406, a top plate 407, and a synchronous hydraulic cylinder 408; the straightener base 401 is fixed on a foundation, and two groups of guide supports 402 are fixedly arranged at two ends of the straightener base 401; a top plate 407 is fixedly mounted on the top of the guide support 402; two third linear bearings 406 are arranged at two ends of the upper pressing plate 405, and each group of guide supports 402 and the third linear bearings 406 are coaxially arranged; an upper platen 405 is installed between the leveler base 401 and the top plate 407; the four corners of the top surface of the top plate 407 are respectively and fixedly provided with a synchronous hydraulic cylinder 408; the synchronous hydraulic cylinder 408 acts in the same direction, and the top of the piston rod of the synchronous hydraulic cylinder 408 is fixedly connected with the top surface of the upper pressing plate 405; a dot matrix consisting of an electrode 404 and a hydraulic head 403 is alternately arranged on the upper pressing plate 405 and the straightener base 401.
Furthermore, the symmetrical planes of the carrier roller 5, the plate shape instrument 2 and the straightening machine 4 are positioned in the same plane, and the driving devices 1 are symmetrically arranged on two sides of the plane.
Further, the displacement sensor 202, the electrode 404 and the hydraulic head 403 are all embedded with balls with corresponding specifications, and the electrode 404 is structurally shown in fig. 6.
Specifically, the hydraulic systems of hydraulic heads 403 are independent of each other, i.e., the high and low positions of each hydraulic head 403 may be controlled individually.
More specifically, the electrodes 404 are insulated from the mounting platform 203, i.e., the energization of each electrode 404 can be independently controlled.
In the present embodiment, as shown in fig. 7, the working range of the shape gauge 2 and the working range of the leveler 4 are the same, and the width a is 1100mm, the length b is 950mm, c is 150mm, d is 25mm, e is 40mm, and f is 170 mm; the dotted line intersection points represent the displacement sensor 202 on the plate shape meter 2, the solid circles represent the hydraulic head 403 on the leveler base 401 of the leveler 4, the solid squares represent the electrodes 404 on the leveler base 401 of the leveler 4, the open circles represent the hydraulic head 403 on the upper platen 405 of the leveler 4, and the open squares represent the electrodes 404 on the upper platen 405 of the leveler 4; the thickness of the steel plate 3 to be straightened is 120mm, the width is 1000mm, the unevenness of the steel plate 3 to be straightened measured by the plate shape instrument 2 is the ratio of the height difference of any two displacement sensors 202 on the plate shape instrument 2 to the working length b of the plate shape instrument 2, namely, the unevenness eta of 0.6 percent indicates that one or more upper surface height differences of the steel plate 3 to be straightened in the section (with the length of 900mm) are 5.4 mm.
In this embodiment, the pulse current parameters are: the voltage was 20V, the frequency was 50Hz, and the pulse width was 20. mu.s.
In a preferred embodiment of the present invention, an on-line straightening process for a wide and thick plate, as shown in fig. 1, comprises the following steps:
s1, measuring the thickness of the steel plate 3 to be corrected, and adjusting the height of the driving device 1 according to the thickness of the steel plate 3 to be corrected, so that the horizontal symmetry plane of the driving roller 113 and the steel plate 3 to be corrected are positioned in the same plane;
s2, adjusting the height of the mounting platform 203 of the shape gauge 2 to enable the top of each displacement sensor 202 to be in close contact with the upper surface of the steel plate 3 to be straightened, starting the driving device 1, setting the initial rotating speed of the driving roller 113 to be 20r/min, setting the radius of the driving roller 113 to be 180mm, and setting the thickness to be 150 mm;
s3, the strip shape gauge 2 measures the conveying speed of the straightened steel plate 3, meanwhile, the strip shape gauge 2 measures the unevenness eta of the straightened steel plate 3 within the length range of the strip shape gauge 2, and data are fed back to a central control system of the straightening machine 4;
s4, controlling the straightening machine to straighten the steel plate 3 according to the unevenness eta of the steel plate 3 at each section by the central control system of the straightening machine 4;
s41, if the unevenness eta is less than or equal to 0.6%, the steel plate 3 to be straightened in the section does not need to be straightened, and the plate shape instrument 2 measures the unevenness eta of the next steel plate 3 to be straightened;
s42, if the unevenness eta is more than 0.6% and less than or equal to 1%, the central control system of the straightener 4 enables the rotation speed of the driving roller 113 to be 10r/min, the height of each hydraulic head 403 is adjusted according to the unevenness eta of the steel plate 3 to be straightened, pulse current is introduced along the steel plate 3 to be straightened through the first two groups of electrodes 404 (the first group of electrodes 404 are +/-and the VII group of electrodes 404 are +/-), and the straightener 4 straightens the steel plate 3 to be straightened;
s43, if the unevenness eta is more than 1.25 percent and less than or equal to 2 percent, the central control system of the straightener 4 further enables the rotating speed of the driving roller 113 to be 4 r/min; according to the unevenness eta of the section of the steel plate 3 to be straightened, the height of each hydraulic head 403 is adjusted, pulse current is introduced along the steel plate 3 to be straightened through four groups of electrodes 404 (the electrodes 404 in the group I and the group V are +/-and the electrodes 404 in the group III and the group VII are +/-), and the straightening machine 4 straightens the section of the steel plate 3 to be straightened;
s44, if the unevenness eta is larger than 2%, the central control system of the straightener 4 controls the power-off of the driving device 1, namely the transmission of the steel plate 3 to be straightened is stopped, the height of each hydraulic head 403 is adjusted, pulse current is introduced along the steel plate 3 to be straightened through seven groups of electrodes 404 (the electrodes 404 of the I group, the III group, the V group and the VII group are plus, and the electrodes 404 of the II group, the IV group and the VI group are minus), and the straightener 4 straightens the steel plate 3 to be straightened;
s5, and S1 to S4, the straightening of the whole section of the steel plate 3 to be straightened is completed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An on-line straightening device for wide and thick plates comprises a driving device, a plate shape instrument, a straightening machine, a carrier roller and a steel plate to be straightened; the straightened steel plate is supported by the carrier roller and driven by the driving device; the unbalancing degree of the steel plate to be straightened in the length range of the shape gauge is measured by the shape gauge, and then the steel plate to be straightened is straightened by the straightening machine under the control of a central control system; in the straightening process of the steel plate to be straightened, a central control system of the straightening machine controls the introduction of pulse current according to the unevenness of the steel plate to be straightened;
the driving device comprises a rack, a lifting hydraulic cylinder, a first guide column, a bottom plate, a first linear bearing, a horizontal hydraulic cylinder, a case cover, a driving motor, a sliding rail, a sliding block, a driving shaft and a driving roller; the frame is fixed on a foundation, and the bottom plate is installed on the frame; the four corners of the top surface of the bottom plate are respectively provided with the first linear bearings, the center of the bottom surface of the bottom plate is provided with the lifting hydraulic cylinder, the four corners of the bottom surface of the mobile platform are respectively provided with the first guide columns, and each group of the first guide columns and the first linear bearings are coaxially arranged; the center of the bottom surface of the mobile platform is fixedly connected with the top of a piston rod of the lifting hydraulic cylinder; the horizontal hydraulic cylinder is installed at one end of the top surface of the mobile platform, and two groups of slide rails are installed at two sides of the top surface of the mobile platform; the four corners of the bottom surface of the case are respectively provided with the sliding blocks, and the sliding blocks are slidably arranged on the sliding rails; a transmission gear is arranged in the case, one end of the bottom surface of the case is fixedly connected with the top of the piston rod of the horizontal hydraulic cylinder, and the case cover is arranged on the case; the driving motor is mounted on the case cover, the driving shaft and the driving roller are rotatably mounted between the case and the case cover, and the driving motor transmits power to the driving roller through a transmission gear in the case and the driving shaft;
the shape meter comprises an upright post, a displacement sensor, an installation platform, a cylindrical rack, a second guide post, an upper template, a second linear bearing, a gear box, a motor, a speed reducer and a sleeve; the four upright columns are fixed on a foundation, and the top of each upright column is fixedly provided with the upper template; two second linear bearings are mounted at two ends of the top surface of the upper template, and the gear box, the motor, the speed reducer and the sleeve are fixedly mounted in the center of the top surface of the upper template; the cylindrical rack is coaxially arranged in the sleeve; the bottom of the cylindrical rack is fixedly connected with the center of the top surface of the mounting platform; two groups of second guide posts are fixedly mounted at two ends of the top surface of the mounting platform, and each group of second guide posts and the second linear bearing are coaxially mounted; the displacement sensor dot matrix is arranged at the lower part of the mounting platform; the supporting roller is fixedly arranged below the shape meter; the carrier roller is composed of a carrier roller base and a plurality of groups of row rollers;
the straightening machine comprises a straightening machine base, a guide support, a hydraulic head, an electrode, an upper pressing plate, a third linear bearing, a top plate and a synchronous hydraulic cylinder; the straightener base is fixed on a foundation, and two groups of guide supports are fixedly arranged at two ends of the straightener base; the top plate is fixedly arranged at the top of the guide support; two third linear bearings are mounted at two ends of the upper pressure plate, and each group of guide bearings and the third linear bearings are coaxially mounted; the upper pressing plate is arranged between the straightener base and the top plate; the four corners of the top surface of the top plate are respectively and fixedly provided with the synchronous hydraulic cylinders; the synchronous hydraulic cylinders act in a consistent manner, and the top of the piston rod of the synchronous hydraulic cylinder is fixedly connected with the top surface of the upper pressure plate; and dot matrixes consisting of the electrodes and the hydraulic heads are alternately arranged on the upper pressing plate and the straightener base.
2. The wide and thick plate on-line straightening device according to claim 1, wherein: the symmetrical surfaces of the carrier roller, the plate shape meter and the straightening machine are located in the same plane, and the driving devices are symmetrically arranged on two sides of the plane.
3. The wide and thick plate on-line straightening device according to claim 1, wherein: the displacement sensor, the electrode and the hydraulic head are all embedded with balls with corresponding specifications.
4. The wide and thick plate on-line straightening device according to claim 1, wherein: the hydraulic systems of the hydraulic heads are independent, namely the high position and the low position of each hydraulic head can be independently controlled.
5. The wide and thick plate on-line straightening device according to claim 1, wherein: the electrodes are insulated from the mounting platform, i.e. whether each electrode is electrified or not can be independently controlled.
6. The wide and thick plate on-line straightening process according to claim 1, which utilizes the wide and thick plate on-line straightening device of claims 1-5, and is characterized by comprising the following steps:
s1, measuring the thickness of the steel plate to be corrected, and adjusting the height of the driving device according to the thickness of the steel plate to be corrected to enable the horizontal symmetry plane of the driving roller and the steel plate to be corrected to be located in the same plane;
s2, adjusting the height of the mounting platform of the shape gauge to enable the top of each displacement sensor to be in close contact with the upper surface of the corrected steel plate, starting the driving device, and setting the initial rotating speed of the driving roller;
s3, the shape gauge measures the conveying speed of the straightened steel plate, and simultaneously, the shape gauge measures the unevenness of the straightened steel plate within the length range of the shape gauge and feeds data back to a central control system of the straightening machine;
s4, controlling the straightening machine to straighten the section of the steel plate to be straightened according to the unevenness of the section of the steel plate to be straightened by the central control system of the straightening machine;
s41, if the unevenness of the steel plate to be corrected is less than or equal to a first set value of the unevenness, the steel plate to be corrected does not need to be straightened, and the shape meter measures the unevenness of the next steel plate to be corrected;
s42, if the unevenness is larger than a first set value and smaller than or equal to a second set value, the central control system of the straightening machine reduces the conveying speed of the steel plate to be straightened, the height of each hydraulic head is adjusted according to the unevenness of the steel plate to be straightened, pulse current is introduced along the steel plate to be straightened through the first two groups of electrodes, and the straightening machine straightens the steel plate to be straightened;
s43, if the unevenness is larger than the second set value and smaller than or equal to the third set value, the central control system of the straightening machine further reduces the conveying speed of the steel plate to be straightened, the height of each hydraulic head is adjusted according to the unevenness of the steel plate to be straightened, pulse current is introduced along the steel plate to be straightened through four groups of electrodes, and the straightening machine straightens the steel plate to be straightened;
s44, if the unevenness is larger than a third unevenness set value, the central control system of the straightening machine controls the driving device to be powered off, namely, the transmission of the steel plate to be straightened is stopped, the height of each hydraulic head is adjusted, pulse current is introduced along the steel plate to be straightened through seven groups of electrodes, and the straightening machine straightens the steel plate to be straightened;
s5, and S1 to S4, finishing the straightening of the whole section of the steel plate to be straightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424981.2A CN113145688B (en) | 2021-04-20 | 2021-04-20 | Online straightening device and process for wide and thick plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424981.2A CN113145688B (en) | 2021-04-20 | 2021-04-20 | Online straightening device and process for wide and thick plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113145688A true CN113145688A (en) | 2021-07-23 |
| CN113145688B CN113145688B (en) | 2022-06-14 |
Family
ID=76869099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110424981.2A Active CN113145688B (en) | 2021-04-20 | 2021-04-20 | Online straightening device and process for wide and thick plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113145688B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707871A (en) * | 2015-03-16 | 2015-06-17 | 浙江大学 | Sheet material thickness online detection and adjustment system based on laser ultrasonic |
| CN108787796A (en) * | 2018-05-21 | 2018-11-13 | 包头钢铁（集团）有限责任公司 | The method of steel plates straightening |
| CN110834036A (en) * | 2019-11-16 | 2020-02-25 | 浙江艾奥巴美新材料有限公司 | Electric auxiliary straightening device and straightening process for high-strength plate |
| CN111054781A (en) * | 2019-12-05 | 2020-04-24 | 浙江艾奥巴美新材料有限公司 | Electric auxiliary leveling device and process for high-strength small-sized plate |
| CN111215455A (en) * | 2018-11-26 | 2020-06-02 | 宝山钢铁股份有限公司 | Device and method for controlling flat plate shape of hot-rolled thin strip steel |
| CN111604372A (en) * | 2020-06-17 | 2020-09-01 | 新余钢铁股份有限公司 | Non-oriented silicon steel cold continuous rolling equipment and thickness control method |
| CN112517646A (en) * | 2020-11-17 | 2021-03-19 | 娄底市洪申科技有限公司 | Steel plate online flatness detection device and detection method thereof |
-
2021
- 2021-04-20 CN CN202110424981.2A patent/CN113145688B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707871A (en) * | 2015-03-16 | 2015-06-17 | 浙江大学 | Sheet material thickness online detection and adjustment system based on laser ultrasonic |
| CN108787796A (en) * | 2018-05-21 | 2018-11-13 | 包头钢铁（集团）有限责任公司 | The method of steel plates straightening |
| CN111215455A (en) * | 2018-11-26 | 2020-06-02 | 宝山钢铁股份有限公司 | Device and method for controlling flat plate shape of hot-rolled thin strip steel |
| CN110834036A (en) * | 2019-11-16 | 2020-02-25 | 浙江艾奥巴美新材料有限公司 | Electric auxiliary straightening device and straightening process for high-strength plate |
| CN111054781A (en) * | 2019-12-05 | 2020-04-24 | 浙江艾奥巴美新材料有限公司 | Electric auxiliary leveling device and process for high-strength small-sized plate |
| CN111604372A (en) * | 2020-06-17 | 2020-09-01 | 新余钢铁股份有限公司 | Non-oriented silicon steel cold continuous rolling equipment and thickness control method |
| CN112517646A (en) * | 2020-11-17 | 2021-03-19 | 娄底市洪申科技有限公司 | Steel plate online flatness detection device and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113145688B (en) | 2022-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106994577B (en) | A kind of mold 3D built-up welding intelligent robots | |
| CN103464469A (en) | Edge drop control method of cold-rolled non-oriented silicon steel | |
| CN113145688B (en) | Online straightening device and process for wide and thick plates | |
| CN111633366B (en) | H-shaped steel assembling equipment | |
| CN206810893U (en) | A kind of panel turnover machine and the compact association type equipment for straightening of press | |
| CN107649518B (en) | Horizontal four-roller rolling mill | |
| CN113579023A (en) | Laser measurement-based section steel bending method | |
| CN106226238B (en) | Support adjusting device of schlieren system and adjusting method thereof | |
| CN111822551A (en) | Overhauling device and overhauling method | |
| CN102380912B (en) | Carbon block groove cleaning device | |
| CN203508656U (en) | Longitudinal beam straightening machine | |
| CN105834251B (en) | One kind 9 13 meters of stainless steel clad plate straighteners of automation | |
| CN115255033A (en) | Servo-driven plate leveling device and leveling control method | |
| CN113787119A (en) | Progressive multi-step bending forming device for stainless steel thick-wall straight welded pipe | |
| CN112393988A (en) | Novel device for thin strip tension bending experiment | |
| CN106826871A (en) | A kind of four-prism keyway cutting robot | |
| CN109909586B (en) | Multi-station synchronous repairing device for single-roller gear teeth | |
| RU2697311C1 (en) | Method of rolled products flattening | |
| CN215639710U (en) | Online continuous metering roller bed scale | |
| CN205165877U (en) | Rolling device of soft metal cloth | |
| CN2811311Y (en) | Servo unit for quenching of precise parts | |
| CN111266431B (en) | Gear type automatic placing device for backing plate of flatting mill | |
| CN219075577U (en) | Triaxial alignment platform with accurate alignment | |
| CN219664773U (en) | Steel plate leveling machine | |
| CN212398443U (en) | Steelmaking factory building driving roof beam welding set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221013 Address after: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: 066004 No. 438 west section of Hebei Avenue, seaport District, Hebei, Qinhuangdao Patentee before: Yanshan University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230506 Address after: 315700 21 Jinshang Road, Binhai Industrial Park, Xiangshan County, Ningbo City, Zhejiang Province Patentee after: NINGBO JUNJIA HEAVY-DUTY MACHINE MANUFACTURING Co.,Ltd. Address before: 230000 B-2704, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee before: HEFEI LONGZHI ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |