CN210497646U - Finish machining system for reducing anisotropy of metal material - Google Patents
Finish machining system for reducing anisotropy of metal material Download PDFInfo
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- CN210497646U CN210497646U CN201921213140.1U CN201921213140U CN210497646U CN 210497646 U CN210497646 U CN 210497646U CN 201921213140 U CN201921213140 U CN 201921213140U CN 210497646 U CN210497646 U CN 210497646U
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Abstract
The utility model relates to a finish machining system for reducing anisotropy of metal materials, which comprises a two-roller mill, a speed divider and a driving device; the device also comprises a discharging device, a rolled piece longitudinal position control device and a rolled piece transverse feeding control device, wherein a rolled piece inlet is formed in the mill housing on one side of the two-roll mill, and a rolled piece outlet is formed in the mill housing on the other side of the two-roll mill; the outer sides of the rolling mill housing are respectively provided with a rolled piece longitudinal position control device, the outer side of the rolled piece longitudinal position control device corresponding to the outlet side of a rolled piece is provided with a rolled piece transverse feeding control device, and the outer side of the rolled piece longitudinal position control device corresponding to the inlet side of the rolled piece is provided with a discharging device; and a rolled piece gripping structure is arranged on the roll surface of the upper working roll and/or the lower working roll. The utility model discloses can make the rolled piece obtain big deformation in the width direction, also can make the rolled piece produce the periodic deformation that needs on length direction to reduce metal material anisotropy, make its mechanical properties in each direction even.
Description
Technical Field
The utility model relates to a rolling processing technology field of metal material especially relates to an adopt vertical rolling mode of horizontal feeding to reduce anisotropic finish machining system of metal material for the rolling mill.
Background
The rolling method of metal materials can be generally divided into longitudinal rolling, skew rolling, transverse rolling and the like. The metal flowing direction in the longitudinal rolling is the same as the moving direction of the surface of the roller, for example, the normal rolling of plate strips, round steel, bars, section steel and the like belongs to the longitudinal rolling, and the longitudinal rolling is also the main form of metal rolling. The metal flow direction is perpendicular to the movement direction of the deformed metal during cross rolling, for example, cross wedge rolling and the like, and shaft products with variable sections can be rolled. The skew rolling is between the longitudinal rolling and the transverse rolling, the flowing direction of the deformed metal forms a certain angle with the moving direction of the roller, and the metal rotates around the axis of the metal except for the forward movement, namely the rolled piece integrally makes spiral forward movement, such as the rolling of steel pipes, steel balls, threads and the like.
The metal deformation direction is not changed during longitudinal rolling, anisotropy is easy to generate in the metal, the product width is not easy to control, and the blank size needs to be changed or the width of a rolled piece needs to be controlled by a vertical roller and a vertical rolling pass when a large blank is used for rolling a small section. The rolling piece rotates during the transverse rolling and the oblique rolling, and is not suitable for rolling products with non-circular sections. Longitudinal rolling can obtain a rolled piece with a larger width by a forced widening method, but the rolling direction is not changed, so that the anisotropy of the material cannot be improved. In order to improve the anisotropy of the material, a method of reversible rolling with alternating longitudinal and transverse directions is generally used, but this rolling method is limited by the width of the rolls and cannot roll long rolled pieces.
Disclosure of Invention
The utility model provides a reduce anisotropic finish machining system of metal material improves on the basis of conventional two roll mill and can produce, and the rolled piece gets into from the rolled piece entry that sets up on the rolling mill housing, then carries out reciprocating rolling by the roll along the direction perpendicular to blank length, and rolling intermittent type controls the rolled piece and exports the direction motion and rolls out to the rolled piece that sets up on the rolling mill housing of opposite side; the utility model discloses can make the rolled piece obtain big deformation in the width direction, also can make the rolled piece produce the periodic deformation that needs on length direction to reduce metal material anisotropy, make its mechanical properties in each direction even.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a finish machining system for reducing anisotropy of a metal material comprises a two-roll mill, a speed divider and a driving device; the upper working roll and the lower working roll of the two-roll mill are respectively connected with a power output shaft of the speed-dividing machine through connecting shafts, the power input shaft of the speed-dividing machine is connected with a driving device through a transmission shaft, and a flywheel is arranged on the transmission shaft; the device comprises a rolling mill housing, a two-roller rolling mill, a feeding device, a rolling piece longitudinal position control device and a rolling piece transverse feeding control device, wherein the two-roller rolling mill is positioned between an upper working roll and a lower working roll, a rolling piece inlet is formed in one side of the rolling mill housing, and a rolling piece outlet is formed in the other side of the rolling mill housing; the outer sides of the rolling mill housing are respectively and correspondingly provided with a rolled piece longitudinal position control device, the outer side of the rolled piece longitudinal position control device corresponding to the outlet side of a rolled piece is provided with a rolled piece transverse feeding control device, and the outer side of the rolled piece longitudinal position control device corresponding to the inlet side of the rolled piece is provided with a discharging device; the widths of the rolled piece inlet and the rolled piece outlet are more than 2 times of the target width of the rolled piece, and rolled piece gripping structures are arranged on the roll surfaces of the upper working roll and/or the lower working roll.
The long-direction central line of a rolled piece of the discharging device is coplanar with the vertical rolling central line of the two-roller mill; at the moment, the discharging device is arranged on the outer side of the speed divider, and a window is arranged on the speed divider for a rolled piece to pass through; or the speed divider is arranged on the outer side of the surface, and the connecting shaft adopts a universal connecting shaft; the discharging device consists of a horizontal discharging roller and a discharging guide roller, and the discharging guide roller is arranged at the downstream of the horizontal discharging roller along the moving direction of the rolled piece.
The movement center line of a rolled piece of the discharging device is positioned outside the vertical rolling center line of the two-roller mill, at the moment, the discharging device is arranged outside the connecting shaft, and the discharging device adopts a vertical discharging roller.
The speed-dividing machine adopts a bias transmission mechanism and comprises 2 driving gears which are horizontally arranged one above the other and 2 driven gears which are horizontally arranged one above the other, the 2 driven gears are positioned on the same side of the driving gears, and the opening positions of the windows correspond to spaces among the 2 driven gears.
The rolled piece longitudinal position control device is a plurality of reset devices which are arranged on two sides of the rolled piece in a one-to-one correspondence mode and comprises a hydraulic cylinder reset device, an air cylinder reset device or a spring reset device.
The transverse feeding device of the rolled piece is composed of a stepping motor, a winding drum and a guide roller, wherein the winding drum is driven by the stepping motor, and the guide roller is arranged at the upstream of the winding drum along the moving direction of the rolled piece.
The rolled piece gripping structure consists of at least one section of plane section or at least one section of curved surface section, wherein the chord height of the curved surface section is less than the height of the adjacent cylindrical roller surface; when the plane section or the curved surface section is a plurality of sections, the sections are arranged at intervals along the circumferential direction of the roller surface; except for the rolled piece gripping structure, the other roll surfaces are cylindrical roll surfaces.
The rolled piece gripping structure consists of at least one step or groove which is arranged along the axial direction and/or the circumferential direction of the roll surface, and when a plurality of steps or grooves are arranged along the circumferential direction and/or the axial direction of the roll surface at intervals; except for the rolled piece gripping structure, the other roll surfaces are cylindrical roll surfaces.
The two-roller rolling mill is provided with a plurality of rolling mills which are connected in series along the moving direction of the rolled piece to form a transverse rolling mill set.
Compared with the prior art, the beneficial effects of the utility model are that:
1) by a method of transverse feeding and longitudinal rolling (relative to a rolling mill), a metal rolled piece is deformed in a direction vertical to the length direction of the rolled piece, the rolled piece is extended in the width direction, the width of the rolled piece is flexibly adjusted, periodic deformation in the length direction of the rolled piece can also be generated, the deformation in the width direction of the rolled piece reduces the side crack tendency of the material, obviously improves the anisotropy of the material, improves the plasticity of the material, greatly improves the quality of a metal product, and has a wider application range;
2) the production can be carried out by adopting a conventional two-roll mill and matched equipment, and the method is suitable for new construction and reconstruction projects.
Drawings
Fig. 1 is a schematic structural diagram of the finishing system of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural diagram of the finishing system according to the present invention (partial).
Fig. 4 is a schematic structural diagram three of the finishing system of the present invention.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a schematic view of the opening position of the window on the gear shifting machine in fig. 4.
Fig. 7 is a schematic structural diagram of the finishing system of the present invention.
Fig. 8 is a top view of fig. 7.
Fig. 9 is a schematic view of the principle of rolling the rolled piece in the small roll gap area of the present invention.
Fig. 10 is a schematic view of the rolled piece of the present invention in the large roll gap area.
Fig. 11-1 is a schematic view of the rolling state of the rolled piece biting structure (6 plane sections are arranged on the surface of the roller) according to the invention.
Fig. 11-2 is a schematic view of the rolled piece biting structure (6 plane sections are arranged on the roller surface) of the present invention in a reset state.
Fig. 11-3 are schematic rolling states of the rolled piece biting structure (2 plane sections are arranged on the surface of the roller) according to the invention.
Fig. 11-4 are schematic views of the rolled piece biting structure (2 plane sections are arranged on the roller surface) of the invention in a reset state.
Fig. 11-5 are schematic rolling states of the rolled piece biting structure (3 plane sections are arranged on the surface of the roller) according to the invention.
Fig. 11-6 are schematic views of the rolled piece biting structure (3 plane sections on the roll surface) of the present invention in a reset state.
Fig. 12 is a schematic diagram of a rolled piece biting structure of the present invention (1 step is axially provided on the roll surface).
Fig. 13 is a schematic diagram of a fifth rolling piece biting structure (5 grooves are axially formed on the surface of the roller).
In the figure: 1. rolled piece transverse feeding control device 2, guide roll 3, rolled piece longitudinal position control device 4, screw-down device 5, upper working roll 6, rolled piece 6-1, rolled piece 6-2 before rolling, rolled piece 7 after rolling, mill housing 8, lower working roll 9, connecting shaft 10, feeding device 11, speed divider 11-1, driving gear 11-2, driven gear 11-3, window 12, flywheel 13, driving device 14, two-roll mill 15, plane section 16, cylindrical roll surface 17, step 18, groove 19, universal joint shaft 20 and discharging guide roll
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 to 5, the finishing system for reducing anisotropy of metal material according to the present invention includes a two-high rolling mill 14, a speed divider 11 and a driving device 13; the upper working roll 5 and the lower working roll 8 of the two-roll mill 14 are respectively connected with a power output shaft of a speed divider 11 through a connecting shaft 9, the power input shaft of the speed divider 11 is connected with a driving device 13 through a transmission shaft, and a flywheel 12 is arranged on the transmission shaft; the device comprises a feeding device 10, a rolled piece longitudinal position control device 3 and a rolled piece transverse feeding control device 1, wherein a rolled piece inlet is formed in one side of a rolling mill housing 7, which is positioned between an upper working roll 5 and a lower working roll 8, of a two-roll rolling mill 14, and a rolled piece outlet is formed in the other side of the rolling mill housing 7; the outer sides of rolling mill housings 7 are respectively and correspondingly provided with a rolled piece longitudinal position control device 3, the outer side of the rolled piece longitudinal position control device 3 corresponding to the outlet side of a rolled piece is provided with a rolled piece transverse feeding control device 1, and the outer side of the rolled piece longitudinal position control device 3 corresponding to the inlet side of the rolled piece is provided with a discharging device 10; the widths of the rolled piece inlet and the rolled piece outlet are 2 times larger than the target width of the rolled piece 6, and rolled piece gripping structures are arranged on the roll surfaces of the upper working roll 5 and/or the lower working roll 8.
The long-direction central line of the rolled piece of the discharging device 10 is coplanar with the vertical rolling central line of the two-roller mill 14; at the moment, the discharging device 10 is arranged outside the speed-dividing machine 11, and the speed-dividing machine 11 is provided with a window 11-3 for the rolled piece 6 to pass through (as shown in fig. 4-5); alternatively, the speed-dividing mechanism 11 is arranged outside the surface, and the connecting shaft 9 adopts a universal joint shaft 19 (as shown in fig. 3); the discharge device 10 is composed of a horizontal discharge drum and a discharge guide roller 20, and the discharge guide roller 20 is arranged at the downstream of the horizontal discharge drum along the moving direction of the rolled piece.
As shown in fig. 1-2, the rolled piece moving center line of the discharging device 10 is located outside the vertical rolling center line of the two-roller mill 14, in this case, the discharging device 10 is arranged outside the connecting shaft 9, and the discharging device 10 adopts a vertical discharging roller.
As shown in fig. 6, the speed-dividing machine 11 adopts an offset transmission mechanism, and includes 2 driving gears 11-1 horizontally disposed one above the other and 2 driven gears 11-2 horizontally disposed one above the other, and the 2 driven gears 11-2 are located on the same side of the driving gears 11-1, and the opening position of the window 11-3 corresponds to a space between the 2 driven gears 11-2.
The rolled piece longitudinal position control device 3 is a plurality of reset devices which are arranged on two sides of the rolled piece 6 in a one-to-one correspondence mode and comprises a hydraulic cylinder reset device, an air cylinder reset device or a spring reset device.
The rolled piece transverse feeding device 1 is composed of a stepping motor, a winding drum and a guide roller 2, the winding drum is driven by the stepping motor, and the guide roller 2 is arranged at the upstream of the winding drum along the moving direction of the rolled piece 6.
As shown in fig. 9, 10 and 11-1 to 11-6, the rolled piece gripping structure is composed of at least one section of a plane section 15 or at least one section of a curved surface section, wherein the chord height of the curved surface section is smaller than the height of the adjacent cylindrical roller surface 16; when the plane section 15 or the curved surface section is a plurality of sections, the sections are arranged at intervals along the circumferential direction of the roller surface; the remaining roll surfaces, except for the rolled product bite structure, are cylindrical roll surfaces 16.
As shown in fig. 12 and 13, the rolled piece biting structure is composed of at least one step 17 or groove 18 arranged along the axial direction and/or the circumferential direction of the roll surface, and when the number of the steps 17 or grooves 18 is multiple, the steps 17 or grooves are arranged along the circumferential direction and/or the axial direction of the roll surface at intervals; the remaining roll surfaces, except for the rolled product bite structure, are cylindrical roll surfaces 16.
As shown in fig. 7 and 8, the two-high rolling mill 14 is provided in plural, and is connected in series in the moving direction of the rolled material 6 to constitute a tandem rolling mill train.
The utility model relates to a reduce anisotropic finish machining system's of metal material application method as follows:
1) starting the two-roller mill 14, feeding by the feeding device 10, feeding the rolled piece 6 from a rolled piece inlet of the mill housing 7 at one side, and rolling the rolled piece 6 by matching the upper working roll 5 and the lower working roll 8 along the direction vertical to the length direction of the rolled piece 6;
2) the rolled piece gripping structures arranged on the upper working roll 5 and/or the lower working roll 8 form a large roll gap area at a roll gap, and the other cylindrical roll surfaces 16 form a small roll gap area at the roll gap; during rolling, a rolled piece 6 is gripped through a rolled piece gripping structure arranged on an upper working roll 5 and a lower working roll 8, the rolled piece 6 is rolled in a small roll gap area through the upper working roll 5 and the lower working roll 8 and is driven by rolling force to move along the rolling direction, and the rolled piece 6 is controlled to reset by a rolled piece longitudinal position control device 3 in a large roll gap area;
3) in the intermittent rolling process, the rolled piece 6 is controlled to move in a direction vertical to the rolling direction by the rolled piece transverse feeding control device 1, so that the reset rolled piece 6 moves to a rolled piece outlet on the rolling mill housing 7 on the other side along the axial direction of the roller, and the rolled piece 6 enters the next rolling period;
4) and (3) repeating the steps 1) to 3), and enabling the rolled piece 6 to form extension or periodical special-shaped deformation in the length direction through an intermittent rolling process until the rolling of the whole rolled piece is completed.
As shown in fig. 11-1, the roll surfaces of the upper working roll 5 and the lower working roll 8 are correspondingly provided with 6 plane sections 15 for rolling wider blanks, and the blanks can be locally rolled; as shown in fig. 11-2, the roll surface of the upper work roll 5 is provided with 2 flat sections 15, and the lower work roll 8 is a complete cylindrical roll; as shown in fig. 11-3, the upper and lower work rolls 5 and 8 are provided with 3 plane sections 15 on their roll surfaces.
As shown in fig. 12-13, in the utility model, the upper working roll 5 and the lower working roll 8 are cylindrical rolls, and the roll surface is provided with one or more steps 17 or grooves 18 along the circumference, so that regular large roll gap area and small roll gap area can be formed along the roll circumference after the upper working roll 5 and the lower working roll 8 are matched, thereby playing the role of gripping rolled pieces and reversing the rolled pieces.
As shown in figure 3, the transmission device consisting of the driving device 13, the flywheel 12 and the speed-dividing machine 11 is arranged in a way of deviating from the axial direction of the rolling rolls as a whole, and the lengthened universal joint shaft 19 is adopted to connect the upper working roll 5 and the lower working roll 8, so that the space interference between the rolled piece 6 and the transmission device can be avoided, and the rolling process of the rolled piece 6 is not influenced.
The control moving range of the rolled piece longitudinal position control device 3 is 0-1000 mm.
When a wider rolled piece is rolled, the rotation direction of the motor can be changed, the upper working roll 5 and the lower working roll 8 both adopt complete cylindrical rolls, and the width of the rolled piece inlet and the rolled piece outlet on the rolling mill housing 7 is 2 times larger than that of the rolled piece 6. When more passes of rolling are needed, a plurality of two-roll mills 14 can be connected in series to form a transverse rolling mill train on the basis of a single two-roll mill 14. The rolling system is also suitable for four-high rolling mill or multi-high rolling mill.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The apparatuses used in the following examples are conventional apparatuses unless otherwise specified.
[ example 1 ]
As shown in fig. 1, 2, 9 and 10, in the present embodiment, a finishing system for reducing anisotropy of a metal material is composed of a two-roll mill 14 (including an upper work roll 5, a lower work roll 8, a mill housing 7, a screw-down device 4), a rolled piece longitudinal position control device 3, a rolled piece transverse feed control device 1, a speed divider 11 and a driving device 13, and is used for rolling a narrow rolled piece.
In this embodiment, the upper working roll 5 and the lower working roll 8 are provided with 4 sections of plane sections 15, and the rest is a cylindrical roll surface 16. The plane sections 15 on the upper working roll 5 and the lower working roll 8 are matched with the cylindrical roll surface 16, and a large roll gap area and a small roll gap area which are regularly arranged at intervals are formed along the circumferential direction of the roll surface.
In the embodiment, the rotating speed of the upper working roll 5 and the lower working roll 8 is 30rpm, the roll diameter is 300mm, and the roll surface width is 100 mm; the roll surface is divided into two parts in the width direction, wherein the first part (50mm wide) is used for pre-pressing and forming and rolling the rolled piece to form a wedge shape, and the other part (50mm wide) is used for rolling the wedge-shaped rolled piece to a plane shape. Because the feed rate after each pass is 50mm, the rolled piece is rolled for 2 passes along the width of the roller surface.
In the embodiment, the rolled piece 6 is a wire rod with the diameter of 8mm, the circumferential length of each section of the plane section 15 on the roller surface is 108mm, and the circumferential length of each section of the cylindrical roller surface 16 is 125 mm. The smallest roll gap of the small roll gap region formed by the cylindrical roll surface 16 is 3mm, and the largest roll gap of the large roll gap region formed by the plane section 15 is 23 mm. The rolled piece width after rolling is 16 mm.
In this embodiment, the rolling process of the rolled piece is as follows: under the action of the rolled piece transverse feeding control device 1, the rolled piece 6 passes through the rolled piece longitudinal position control device 3, enters the two-roller mill 14 from a rolled piece inlet on the mill housing 7 on one side, and leaves from a rolled piece outlet on the mill housing 7 on the other side. In the two-roller rolling mill 14, the rolled piece 6-1 before rolling enters a small roll gap area for rolling under the action of a rolled piece gripping structure on the roll surface, and after the rolling process is finished, the rolled piece 6-2 after rolling is moved out of the rolling area, and at the moment, the roll continues to idle; when entering a large roll gap area, the rolled piece longitudinal position controller device 3 pushes the rolled piece 6-2 to reset, and meanwhile, the rolled piece transverse feeding controller device 1 drives the rolled piece 6 to move forward by 50mm along the roll axis to wait for entering the next rolling process. The rolling is finished by continuously rolling and feeding until all the lengths of the rolled pieces are finished.
In the embodiment, the rolling speed of the rolled piece is 2 times/second, the rolled piece is fed by 50mm after each rolling, the rolling length is 100mm per second, namely 6 meters are rolled in 1 minute, 360 meters are rolled per hour, and the output per hour is 102 kg.
In the embodiment, the rolled piece 6 is deformed in the width direction, so that the width of the rolled piece is increased, the rolled piece 6 is subjected to required periodic deformation in the length direction, the anisotropy of the material is reduced, the uniformity of the mechanical property of the material in each direction is improved, and the service performance is improved.
[ example 2 ]
As shown in fig. 4 to 6, 9 and 10, in the present embodiment, a finishing system for reducing anisotropy of a metallic material is composed of a two-roll mill 14 (including an upper work roll 5, a lower work roll 8, a mill housing 7 and a screw-down device 4), a rolled piece longitudinal position control device 3, a rolled piece transverse feed control device 1, a speed divider 11 and a drive device 13. The rolling mill is suitable for rolling rolled pieces which are large in thickness and width and not easy to bend.
In the embodiment, the rotating speed of the upper working roll 5 and the lower working roll 8 is 60rpm, the roll diameter is 300mm, the roll surface width is 100mm, the roll surface is divided into 2 parts in width, and each part is 50mm in width. The roll surface is provided with 2 plane sections 15 along the circumferential direction, and the rest is a cylindrical roll surface 16. The circumferential length of each planar segment 15 is 165mm, and the circumferential length of each cylindrical roll surface 16 is 280 mm.
In this embodiment, the rolled piece 6 is a narrow copper strip with a thickness of 5mm and a width of 50mm, the minimum roll gap of the small roll gap region in the two-roll mill 14 is 4mm, the maximum roll gap of the large roll gap region is 53mm, and the rolled piece after rolling is 60mm wide.
As shown in FIG. 5, the speed divider 11 adopts an offset transmission mechanism and is composed of a driving gear 11-1 and a driven gear 11-2, a window 11-3 is formed on the corresponding side wall of the speed divider 11, 2 driven gears 11-2 are positioned on the same side of the 2 driving gears 11-1, and the space between the 2 driven gears 11-2 is communicated with the window 11-3 so as to facilitate the passage of a rolled piece.
The rolling process of the rolled product was substantially the same as in example 1. Except that the rolled material 6 drawn out from the discharging device 10 passes through the window 11-3 of the speed-divider 11 and enters the two-roll mill 14.
In this example, the rolled stock rolling speed was 2 times/second, the feed after each pass was 50mm, the rolling length was 100mm per second, 6 meters were rolled in 1 minute, 360 meters were rolled per hour, and the output was 790kg per hour.
Generally, the connecting shaft 9 between the speed divider 11 and the upper and lower working rolls 5 and 8 is in the same vertical plane with the axes of the upper and lower working rolls 5 and 8, but for the present invention, the rolled piece 6 will interfere spatially with the transmission mechanism of the speed divider 11 for a long time. In the embodiment, the driving gear 11-1 and the driven gear 11-2 of the speed divider 11 are separately arranged, and the window 11-3 is formed for the rolled piece 6 to pass through, so that the problem of interference between the rolled piece 6 and the speed divider 11 is solved.
[ example 3 ]
As shown in fig. 7 to 10, in the present embodiment, a finishing system for reducing anisotropy of a metallic material is composed of a two-roll mill 14 (including an upper work roll 5, a lower work roll 8, a mill housing 7 and a screw-down device 4), a rolled piece longitudinal position control device 3, a rolled piece transverse feed control device 1, a speed divider 11 and a drive device 13.
In this embodiment, the upper and lower work rolls 5 and 8 are rotated at 30rpm, and have a diameter of 300mm and a width of 100mm, and the roll surface is divided into two parts in the width direction, each part having a width of 50 mm. The roller surface is divided into 4 sections of plane sections 15 and 4 sections of cylindrical roller surfaces 16 along the circumferential direction, wherein the circumferential length of each section of plane section 15 is 108mm, and the circumferential length of each section of cylindrical roller surface 16 is 125 mm.
In this embodiment, 2 two-high rolling mills 14 are provided, and each two-high rolling mill 14 performs rolling for 2 passes, and performs rolling for 4 passes in total. The rolled piece 6 is a wire rod with the diameter of 8mm, the minimum roll gap of the small roll gap area is 1.5mm, the maximum roll gap of the large roll gap area is 23mm, and the width of the rolled piece after rolling is 30 mm.
The rolling process of this embodiment is substantially the same as that of embodiment 1, except that the rolled material 6 after being rolled by the first two-high rolling mill 14 is rolled again in the second two-high rolling mill 14, and the rolling process on the 2-high rolling mill 14 is the same.
In the embodiment, the rolling speed of the rolled piece is 2 times/second, the feeding amount after each rolling is 50mm, the rolling length per second is 100mm, the rolled piece is rolled for 6 meters in 1 minute, the rolled piece is rolled for 360 meters per hour, and the output per hour is 102 kg.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. A finish machining system for reducing anisotropy of a metal material comprises a two-roll mill, a speed divider and a driving device; the upper working roll and the lower working roll of the two-roll mill are respectively connected with a power output shaft of the speed-dividing machine through connecting shafts, the power input shaft of the speed-dividing machine is connected with a driving device through a transmission shaft, and a flywheel is arranged on the transmission shaft; the device is characterized by also comprising a discharging device, a rolled piece longitudinal position control device and a rolled piece transverse feeding control device, wherein a rolled piece inlet is formed in one side of the rolling mill housing between the upper working roll and the lower working roll of the two-roll rolling mill, and a rolled piece outlet is formed in the other side of the rolling mill housing; the outer sides of the rolling mill housing are respectively and correspondingly provided with a rolled piece longitudinal position control device, the outer side of the rolled piece longitudinal position control device corresponding to the outlet side of a rolled piece is provided with a rolled piece transverse feeding control device, and the outer side of the rolled piece longitudinal position control device corresponding to the inlet side of the rolled piece is provided with a discharging device; the widths of the rolled piece inlet and the rolled piece outlet are more than 2 times of the target width of the rolled piece, and rolled piece gripping structures are arranged on the roll surfaces of the upper working roll and/or the lower working roll.
2. A finishing system for reducing anisotropy of metallic materials according to claim 1, wherein the rolled member longitudinal centerline of said discharge means is coplanar with the vertical rolling centerline of the two high rolling mill; at the moment, the discharging device is arranged on the outer side of the speed divider, and a window is arranged on the speed divider for a rolled piece to pass through; or the speed divider is arranged on the outer side of the surface, and the connecting shaft adopts a universal connecting shaft; the discharging device consists of a horizontal discharging roller and a discharging guide roller, and the discharging guide roller is arranged at the downstream of the horizontal discharging roller along the moving direction of the rolled piece.
3. The finish machining system for reducing the anisotropy of metal materials according to claim 1, wherein the rolled piece moving center line of the discharging device is located outside the vertical rolling center line of the two-roll mill, in this case, the discharging device is arranged outside the connecting shaft, and the discharging device adopts a vertical discharging roller.
4. The finish machining system for reducing anisotropy of metal materials according to claim 3, wherein the speed-dividing machine adopts an offset transmission mechanism, and comprises 2 driving gears horizontally arranged one above the other and 2 driven gears horizontally arranged one above the other, the 2 driven gears are located on the same side of the driving gears, and the opening position of the window corresponds to a space between the 2 driven gears.
5. A finishing system for reducing anisotropy of metallic materials according to claim 1, wherein said rolled piece longitudinal position control means is a plurality of returning means disposed on both sides of the rolled piece in one-to-one correspondence, including hydraulic cylinder returning means, air cylinder returning means, or spring returning means.
6. A finishing system for reducing anisotropy in metallic materials according to claim 1, wherein said product infeed means is comprised of a stepper motor, a drum driven by the stepper motor, and guide rollers disposed upstream of the drum in the direction of product movement.
7. A finishing system for reducing anisotropy in metallic materials as set forth in claim 1, wherein said product bite configuration is comprised of at least one planar segment or at least one curved segment, wherein the chord height of the curved segment is less than the height of the adjacent cylindrical roll surface; when the plane section or the curved surface section is a plurality of sections, the sections are arranged at intervals along the circumferential direction of the roller surface; except for the rolled piece gripping structure, the other roll surfaces are cylindrical roll surfaces.
8. A finishing system for reducing anisotropy of metallic materials according to claim 1, wherein said product-engaging structure is composed of at least one step or groove provided axially and/or circumferentially along the roll surface, and when plural, the steps or grooves are provided circumferentially and/or axially at intervals along the roll surface; except for the rolled piece gripping structure, the other roll surfaces are cylindrical roll surfaces.
9. A finishing system for reducing anisotropy of metallic materials according to claim 1, wherein said two high rolling mills are plural and are connected in series in the moving direction of the rolled material to constitute a tandem rolling mill train.
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| CN201921213140.1U CN210497646U (en) | 2019-07-30 | 2019-07-30 | Finish machining system for reducing anisotropy of metal material |
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| CN201921213140.1U CN210497646U (en) | 2019-07-30 | 2019-07-30 | Finish machining system for reducing anisotropy of metal material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369494A (en) * | 2019-07-30 | 2019-10-25 | 辽宁科技大学 | A kind of anisotropic Finish Machining System of reduction metal material and method |
| CN117299786A (en) * | 2023-10-18 | 2023-12-29 | 邯郸一三高研科技有限公司 | Efficient bar rolling device and process |
-
2019
- 2019-07-30 CN CN201921213140.1U patent/CN210497646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369494A (en) * | 2019-07-30 | 2019-10-25 | 辽宁科技大学 | A kind of anisotropic Finish Machining System of reduction metal material and method |
| CN117299786A (en) * | 2023-10-18 | 2023-12-29 | 邯郸一三高研科技有限公司 | Efficient bar rolling device and process |
| CN117299786B (en) * | 2023-10-18 | 2024-05-14 | 邯郸一三高研科技有限公司 | Efficient bar rolling device and process |
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