Multi-section vertical rolling device for die steel plate

Abstract

The utility model relates to a multi-section vertical rolling device for a die steel plate, and relates to the technical field of vertical rolling equipment. The device comprises a rack, a mold frame, a roller, a roller way conveyor and a lifting assembly, the mold frame is fixed in the rack, the two rollers are arranged in parallel and rotationally connected to the mold frame, a plurality of mold pressing surfaces distributed in the axial direction of the rollers are arranged on the rollers, the diameters of the mold pressing surfaces are different, and a driving assembly used for driving the rollers to rotate is arranged on the rack; limiting plates in one-to-one correspondence with the mold pressing surfaces are arranged on the positions, on the feeding side and the discharging side of the roller, of the mold frame, the number of the limiting plates corresponding to each mold pressing surface is two, and a channel allowing steel billets to move is formed between the two limiting plates; the two roller way conveyors correspond to the limiting plates on the two sides of the roller respectively. The lifting assemblies are in one-to-one correspondence with the roller conveyors and used for driving the roller conveyors to move up and down. The possibility that the rolling force is increased due to the fact that the steel temperature is reduced due to steel billet movement is reduced, and the protection effect on equipment is achieved.

Description

Technical Field

[0001] The present application relates to the field of vertical rolling equipment technology, and in particular to a multi-stage vertical rolling device for die steel plates. Background Art

[0002] At present, the main rolling mill equipment for rolling die steel in my country consists of vertical roll mill and flat roll mill. The vertical roll mill plays a key role in rolling. It opens the required holes on the outer circumference of the roll. The outer diameter of each hole is different. The different holes between the rolls are used to extrude the steel billet to achieve the desired production width.

[0003] The rolling rollers (roller system) of the prior art vertical rolling mill are fixedly installed in the frame and cannot move up and down. When the die hole is replaced, the steel billet needs to be moved. During the movement of the steel billet, the steel temperature will drop, the rolling force will increase, and the probability of equipment damage will increase. Utility Model Content

[0004] In order to improve the problem that the steel temperature will drop and the rolling force will increase during the movement of the steel billet, which will increase the probability of equipment damage, the present application provides a multi-stage vertical rolling device for mold steel plates.

[0005] The multi-stage vertical rolling device for die steel plate provided in this application adopts the following technical solution:

[0006] A multi-stage vertical rolling device for die steel plates, comprising a frame, a die frame, rollers, a roller conveyor and a lifting assembly;

[0007] The mold frame is fixed in the frame, two rollers are provided in parallel and are both rotatably connected to the mold frame, the roller is provided with a plurality of molding surfaces distributed along its axial direction, and the diameters of the molding surfaces are different, and the frame is provided with a driving assembly for driving the roller to rotate;

[0008] The mold frame is provided with limiting plates corresponding to the molding surfaces one by one on the feeding side and the discharging side of the roller, and two limiting plates are provided corresponding to each molding surface, and a channel for the movement of the steel billet is formed between the two limiting plates;

[0009] The roller conveyors are provided with two, and correspond to the limit plates on both sides of the roller respectively;

[0010] The lifting assembly corresponds to the roller conveyor one by one and is used to drive the roller conveyor to move up and down.

[0011] By adopting the above technical solution, the driving component drives the two rollers to rotate, and the lifting component drives the roller conveyor to move up and down, so that the steel billet is transferred to channels at different heights, and the different distances between the different molding surfaces of the two rollers are used for extrusion to achieve the required steel billet width. There is no need to transfer the steel billet, which reduces the possibility of increased rolling force due to a drop in steel temperature, thereby protecting the equipment.

[0012] Optionally, the mold frame is provided with adjustment components on both sides of the roller for adjusting the distance between each of the limit plates.

[0013] By adopting the above technical solution, the position of the limit plate of the adjustment component is adjusted. On the one hand, it can meet the rolling requirements of steel billets of different thicknesses. On the other hand, it can ensure that the steel billet can smoothly pass through the limit plate and enter between the two rollers after the position of the roller conveyor is changed.

[0014] Optionally, the adjustment assembly includes two mutually parallel studs, the two studs vertically pass through each of the limiting plates, and the studs are threadedly connected with adjustment nuts on both sides of each of the limiting plates.

[0015] By adopting the above technical solution, the upper and lower adjusting nuts clamp and fix the limit plate; when the position of the limit plate needs to be adjusted, the operator only needs to loosen the adjusting nuts, which is convenient and quick.

[0016] Optionally, each of the limiting plates is provided with two support plates at both ends along the length direction, and the two support plates are distributed on the upper and lower sides of the limiting plate. The support plates are fixed to the mold frame by screws, and the mold frame is provided with a plurality of screw holes that cooperate with the screws.

[0017] By adopting the above technical solution, the two support plates clamp the limit plate, which plays a role in reinforcing the support of the limit plate and improving the bearing capacity of the limit plate. Different thread positions meet the adjustment requirements of the limit plate position.

[0018] Optionally, the lifting assembly (2) includes a screw (20) and a first servo motor (21), the screw (20) is rotatably connected to the frame (1), the screw (20) is axially parallel to the moving direction of the mold frame (11), a screw sleeve (22) is threadedly connected to the screw (20), a connecting rod (23) is fixed to the side wall of the screw sleeve (22), the connecting rod (23) is connected to the roller conveyor, a rotating shaft (24) is rotatably connected to the frame (1), the rotating shaft (24) is perpendicular to the screw (20), and the rotating shaft (24) is transmission-connected to the screw (20) through a worm gear transmission structure, and the first servo motor (21) is configured to drive the rotating shaft (24) to rotate.

[0019] By adopting the above technical solution, the first servo motor drives the rotating shaft to rotate, and the rotating shaft drives the lead screw to rotate through the worm transmission structure. The meshing transmission between the lead screw and the screw sleeve drives the roller conveyor to move up and down.

[0020] Optionally, two screw rods are provided in parallel, and the rotating shaft is respectively connected to the two screw rods through two worm transmission structures.

[0021] By adopting the above technical solution, the two screw rods increase the lifting force on the mold frame; the two screw rods are driven by the same motor and rotating shaft, thereby maintaining the synchronization of the two screw rods.

[0022] Optionally, the driving assembly includes a second servo motor, which is mounted on the frame, and the axis of the second servo motor is parallel to the moving direction of the mold frame, and the motor shaft of the second servo motor is connected to the roller via a telescopic universal coupling.

[0023] By adopting the above technical solution, the power of the second servo motor is driven by the coupling to drive the roller to rotate.

[0024] Optionally, the coupling is a telescopic universal coupling.

[0025] By adopting the above technical solution, the telescopic universal coupling reduces the coaxiality installation requirements between the second servo motor and the roller, facilitates on-site installation, and also maintains the smooth transmission of the power of the second servo motor.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By driving the roller conveyor to move up and down, the billet is conveyed into the rollers at different intervals for extrusion to achieve the required billet width. There is no need to transfer the billet, which reduces the possibility of increasing rolling force due to a drop in steel temperature and protects the equipment.

[0028] 2. The limit plate supports the steel billet, reduces the possibility of the steel billet being skewed, and helps improve the accuracy of the steel billet after rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of a mold frame used to illustrate an embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of a limiting plate used in an embodiment of the present application.

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0033] Explanation of the reference numerals: 1. frame; 11. mold frame; 12. roller; 121. molding surface; 13. roller conveyor; 2. lifting assembly; 20. screw; 21. first servo motor; 22. sleeve; 23. connecting rod; 24. rotating shaft; 25. worm; 26. worm wheel; 3. driving assembly; 31. second servo motor; 32. telescopic universal coupling; 4. limit plate; 41. stud; 411. adjusting nut; 42. support plate; 421. screw. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0035] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0036] like Figure 1 and Figure 2 The embodiment of the present application discloses a multi-stage vertical rolling device for mold steel plates, including a frame 1, a mold frame 11, a rolling roller 12, a roller conveyor 13 and a lifting assembly 2. The mold frame 11 is fixed in the frame 1, and two rolling rollers 12 are provided in parallel and are rotatably connected to the mold frame 11. The rolling roller 12 is provided with a plurality of molding surfaces 121 distributed along its axial direction, and the diameters of each molding surface 121 are different. The frame 1 is provided with a driving assembly 3 for driving the rolling roller 12 to rotate.

[0037] like Figure 3 The roller 12 is provided with a plurality of molded surfaces 121 distributed along its axial direction, and the diameters of the molded surfaces 121 are different. The molded surfaces 121 on the two rollers 12 are symmetrically arranged. The frame 1 is provided with a driving assembly 3 for driving the roller 12 to rotate, and the driving assembly 3 corresponds to the roller 12 one by one.

[0038] The mold frame 11 is provided with limiting plates 4 corresponding to the molding surfaces 121 on the feeding side and the discharging side of the rolling roller 12. Two limiting plates 4 are arranged at intervals corresponding to each molding surface 121, and a channel for the movement of the steel billet is formed between the two limiting plates 4.

[0039] like Figure 3 and Figure 4The mold frame 11 is provided with adjustment components for adjusting the spacing between each limit plate 4 on both sides of the rolling roller 12. The adjustment components include two parallel studs 41. The two studs 41 are fixed to the mold frame 11 and correspond to the two ends of the limit plates 4 respectively. The two studs 41 vertically pass through each limit plate 4. The studs 41 are threadedly connected with adjustment nuts 411 on both sides of each limit plate 4. The upper and lower nuts clamp the limit plate 4.

[0040] Each limiting plate 4 is provided with two support plates 42 at both ends along the length direction. The two support plates 42 are distributed on the upper and lower sides of the limiting plate 4 to clamp the limiting plate 4. The support plates 42 are fixed to the mold frame 11 by screws 421. The mold frame 11 is provided with a plurality of screw holes that cooperate with the screws 421. The screw holes are arranged equidistantly along the moving direction of the mold frame 11.

[0041] like Figure 1 and Figure 2 There are two roller conveyors 13, which correspond to the limit plates 4 on both sides of the roller 12 respectively. The lifting assembly 2 corresponds to the roller conveyor 13 one by one, and is used to drive the roller conveyor 13 to move up and down. The moving direction of the roller conveyor 13 is parallel to the axis of the roller 12.

[0042] The lifting assembly 2 includes a screw rod 20 and a first servo motor 21. Two screw rods 20 are provided in parallel and are both rotatably connected to the frame 1. The axial direction of the screw rod 20 is parallel to the moving direction of the roller conveyor 13. The two screw rods 20 are distributed on both sides of the roller conveyor 13. A screw sleeve 22 is threadedly connected to the screw rod 20. A connecting rod 23 is vertically fixed to the side wall of the screw sleeve 22. The connecting rod 23 is connected to the side wall of the roller conveyor 13. A rotating shaft 24 is rotatably connected to the frame 1. The rotating shaft 24 is perpendicular to the screw rod 20, and the rotating shaft 24 is respectively connected to the two screw rods 20 through two sets of worm gear transmission structures. The motor shaft of the first servo motor 21 is coaxially connected with one end of the rotating shaft 24.

[0043] The worm transmission structure includes a worm 25 and a worm wheel 26 meshing with each other. The worm 25 is coaxially connected to the rotating shaft 24 , and the worm wheel 26 is coaxially installed on the lead screw 20 .

[0044] The first servo motor 21 drives the rotating shaft 24 to rotate, and the rotating shaft 24 drives the two worms 25 to rotate, and the two worms 25 drive their corresponding worm wheels 26 to rotate, so that the two screws 20 rotate synchronously; the screw 20 drives the screw sleeve 22 to move, and the screw sleeve 22 drives the roller conveyor 13 to move through the connecting rod 23, thereby adjusting the height position of the roller conveyor 13.

[0045] like Figure 2The driving assembly 3 includes a second servo motor 31, which is mounted on the frame 1, and the axis of the second servo motor 31 is parallel to the moving direction of the mold frame 11, and the motor shaft of the second servo motor 31 is connected to the roller 12 through a telescopic universal coupling 32.

[0046] The telescopic universal coupling 32 includes a key sleeve and a spline shaft. The spline shaft is partially slidably inserted in the key sleeve. The inner circumferential wall of the key sleeve has an internal spline, and the outer circumferential wall of the spline shaft has an external spline that engages with the inner spline of the key sleeve. Universal joints are installed on the ends of the key sleeve and the spline shaft that are away from each other. The universal joint corresponding to the key sleeve is connected to the motor shaft of the second servo motor 31, and the universal joint corresponding to the spline shaft is connected to the rolling roller 12.

[0047] The second servo motor 31 drives the roller 12 to rotate through the telescopic universal coupling 32; the telescopic universal coupling 32 allows a certain installation distance in the horizontal direction to exist between the roller 12 and the second servo motor 31, reducing the coaxiality requirements between the two, so that the power of the second servo motor 31 can be smoothly transmitted.

[0048] Principle of the embodiment of the present application: Conveying mechanisms are provided on both sides of the vertical rolling device, and the two conveying mechanisms are connected to two roller conveyors 13 respectively.

[0049] During processing, the steel billet is conveyed by the conveying mechanism to the roller conveyor 13 on that side, and the roller conveyor 13 conveys the steel billet to the limit plate 4. The steel billet moves along the limit plate 4 to between the two rollers 12 for extrusion. After extrusion, the steel billet moves to the roller conveyor 13 on the other side of the roller 12, and the roller conveyor 13 conveys the steel billet back, so that the steel billet is extruded reciprocatingly.

[0050] When the width of the steel billet needs to be adjusted, the roller conveyor 13 moves to the corresponding channel position under the drive of the first servo motor, repeats the above steps to reciprocately extrude the steel billet, and finally gradually extrude the steel billet through the spacing between the two rollers 12 through different molding surfaces 121 so that the steel billet reaches the required width.

[0051] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. A multi-stage vertical rolling device for die steel plates, characterized in that: It comprises a frame (1), a mold frame (11), rollers (12), a roller conveyor (13) and a lifting assembly (2); The mold frame (11) is fixed in the frame (1), two rollers (12) are provided in parallel and are both rotatably connected to the mold frame (11), the roller (12) is provided with a plurality of molding surfaces (121) distributed along its axial direction, and the diameters of the molding surfaces (121) are different, and the frame (1) is provided with a driving component (3) for driving the roller (12) to rotate; The mold frame (11) is provided with limiting plates (4) corresponding to the molding surfaces (121) on both the feeding side and the discharging side of the rolling roller (12), and two limiting plates (4) are provided corresponding to each molding surface (121), and a channel for the movement of the steel billet is formed between the two limiting plates (4); The roller conveyors (13) are provided with two, and correspond to the limit plates (4) on both sides of the roller (12) respectively; The lifting assembly (2) corresponds one-to-one to the roller conveyor (13) and is used to drive the roller conveyor (13) to move up and down.

2. The multi-stage vertical rolling device for die steel plate according to claim 1 is characterized in that: The mold frame is provided with adjustment components on both sides of the roller for adjusting the distance between each of the limit plates.

3. The multi-stage vertical rolling device for die steel plate according to claim 2 is characterized in that: The adjustment assembly comprises two mutually parallel studs (41), the two studs (41) vertically passing through each of the limiting plates (4), and the studs (41) are threadedly connected with adjustment nuts (411) on both sides of each of the limiting plates (4).

4. The die steel plate multi-stage vertical rolling device according to claim 3 is characterized in that: Each of the limiting plates (4) is provided with two support plates (42) at both ends along the length direction, and the two support plates (42) are distributed on the upper and lower sides of the limiting plate (4). The support plates (42) are fixed to the mold frame (11) by screws (421), and the mold frame (11) is provided with a plurality of screw holes that cooperate with the screws (421).

5. The multi-stage vertical rolling device for die steel plate according to claim 1 is characterized in that: The lifting assembly (2) comprises a screw rod (20) and a first servo motor (21), wherein the screw rod (20) is rotatably connected to the frame (1), the screw rod (20) is axially parallel to the moving direction of the mold frame (11), a screw sleeve (22) is threadedly connected to the screw rod (20), a connecting rod (23) is fixed to the side wall of the screw sleeve (22), and the connecting rod (23) is connected to the roller conveyor (13), a rotating shaft (24) is rotatably connected to the frame (1), the rotating shaft (24) is perpendicular to the screw rod (20), and the rotating shaft (24) is transmission-connected to the screw rod (20) through a worm gear transmission structure, and the first servo motor (21) is configured to drive the rotating shaft (24) to rotate.

6. The multi-stage vertical rolling device for die steel plate according to claim 5, characterized in that: Two screw rods (20) are arranged in parallel, and the rotating shaft (24) is respectively connected to the two screw rods (20) through two worm transmission structures.

7. The multi-stage vertical rolling device for die steel plate according to claim 1 is characterized in that: The driving assembly (3) comprises a second servo motor (31), the second servo motor (31) is mounted on the frame (1), and the axis of the second servo motor (31) is parallel to the moving direction of the mold frame (11), and the motor shaft of the second servo motor (31) is connected to the roller (12) via a coupling.

8. The multi-stage vertical rolling device for die steel plate according to claim 7 is characterized in that: The coupling is a telescopic universal coupling.

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