Flattening system for hot mill

Abstract

The invention discloses a leveling system for a hot rolling mill, and relates to the technical field of hot rolling mills, the leveling system comprises a bottom plate, a support frame is fixedly mounted on the bottom plate, and the leveling system also comprises a distance adjusting mechanism which is arranged on the support frame and is used for adjusting the distance between two sliding seats which are arranged in parallel up and down; and the disintegrating slag cleaning mechanism is arranged on the supporting frame and used for cleaning disintegrating slag in gaps of the leveling roller assemblies, and the disintegrating slag cleaning mechanism comprises a plurality of cleaning shovels, a moving assembly used for driving the multiple cleaning shovels to move, a rolling assembly used for driving the multiple cleaning shovels to rotate and a distance changing assembly used for adjusting the distance between the multiple cleaning shovels. According to the device, the cleaning shovel is driven by the rotating disc to move and rotate along the gap of the hot rolling leveling rollers, steel plate disintegrating slag tightly clamped in the gap of the hot rolling rollers can be thoroughly dug out, and interference of the disintegrating slag on a hot rolling leveling system is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of hot rolling mills, in particular to a leveling system for hot rolling mills. Background Art

[0002] With the widespread application of hot rolling mills in China, the rolling processing of various materials such as aluminum, copper, lead and their composite materials is also increasing. Hot rolling and cold rolling are the most typical rolling processes. In the prior art, when hot rolling is used to produce composite plates with non-ferrous materials as the base material, the plate surface is prone to large wave deformation during the rolling process, which affects the quality of the product. Especially in the production line using automatic hot rolling, this phenomenon will seriously affect the production efficiency and product quality of the product.

[0003] A leveling device for a leveling machine with a publication number of CN208321672U is provided, comprising a frame, an upper roller mechanism and a lower roller mechanism, wherein a horizontal plate is provided at the upper end of the frame, a stepper motor is mounted on the horizontal plate, and the stepper motor is connected to the upper roller mechanism; the upper roller mechanism comprises an upper roller module, a plurality of springs and a connecting plate; the spring connects the upper roller module and the connecting plate; the height of the rotating roller of the upper roller module decreases from the feed end to the discharge end; the lower roller mechanism is fixedly connected to the frame, and the active roller of the lower roller mechanism is in the same horizontal plane; the number of the active roller of the lower roller mechanism and the rotating roller of the upper roller module are consistent and the positions correspond one to one. The above-mentioned leveling device accurately controls the distance between the upper roller and the lower roller, improves the leveling accuracy, and can prevent the steel strip or steel plate from being damaged during the leveling process due to the thickness or curvature suddenly exceeding the set value.

[0004] However, during the implementation of the above patent, it was also found that in the production process of hot-rolled steel plates, carbonized debris often exists on the surface of the steel plates after hot rolling. These debris are easily stuck in the gap between the hot rolling rollers under the action of high temperature and pressure, causing interference to the hot rolling leveling system, affecting the leveling effect and the surface quality of the steel plates. In order to solve this problem, a leveling system for a hot rolling mill is proposed. Summary of the invention

[0005] In order to solve the problems raised by the above background technology, the present invention proposes a leveling system for a hot rolling mill.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A leveling system for a hot rolling mill comprises a bottom plate, a support frame is fixedly mounted on the bottom plate, and

[0008] The distance adjustment mechanism is arranged on the support frame and is used to adjust the distance between two sliding seats arranged in parallel up and down;

[0009] The debris cleaning mechanism is arranged on the support frame and is used to clean the debris in the gap of the leveling roller assembly, wherein:

[0010] The slag cleaning mechanism comprises a plurality of cleaning shovels, a moving assembly for driving the plurality of cleaning shovels to move, a rolling assembly for driving the plurality of cleaning shovels to rotate, and a variable distance assembly for adjusting the distance between the plurality of cleaning shovels.

[0011] As a further preferred embodiment of the present technical solution: the moving component includes a slide rail fixedly mounted on a support frame, the slide rail is internally rotatably connected with a one-way screw rod, and a motor for driving the one-way screw rod to rotate is fixedly mounted on the slide rail, the one-way screw rod is threadedly connected with a moving block sliding inside the slide rail, and a connecting shaft is fixedly mounted on the moving block.

[0012] As a further preferred embodiment of the technical solution: the rolling assembly comprises a transmission gear fixedly mounted on the end of the connecting shaft, and the transmission gear is meshed with a transmission rack fixedly mounted on the support frame;

[0013] The rolling assembly also includes a rotating shaft, and a second transmission assembly for transmission is installed between the rotating shaft and the connecting shaft.

[0014] As a further preferred embodiment of the technical solution: a plurality of rotating discs arranged at equal intervals are fixedly mounted on the rotating shaft, each of the rotating discs is provided with a number of No. 2 slide grooves arranged in a circular array, each of the No. 2 slide grooves is slidably connected to a cleaning shovel, and the middle part of the cleaning shovel is curved.

[0015] As a further preferred embodiment of the present technical solution: the pitch variable assembly is installed on the rotating disc, and the pitch variable assembly includes a mini motor fixedly installed on any one of the outermost rotating discs, a driving shaft is fixedly installed on the output end of the mini motor, and the driving shaft is fixedly installed with driving gears with the same number as the rotating discs, and each of the driving gears is meshed and connected with a driven gear rotatably installed on the driving shaft.

[0016] As a further preferred embodiment of the present technical solution: each of the driven gears is provided with a number of No. 1 slide grooves arranged in a ring array, and each of the cleaning shovels is fixedly mounted with a No. 2 guide shaft, and the multiple No. 2 guide shafts slide in the No. 1 slide groove in a one-to-one correspondence.

[0017] As a further preferred embodiment of the present technical solution: the debris cleaning mechanism further comprises a connecting frame, one end of the connecting frame is rotatably connected to the connecting shaft, and the other end of the connecting frame is rotatably connected to the rotating shaft.

[0018] As a further preferred embodiment of the present technical solution: the pitch adjusting mechanism includes two bidirectional screw rods rotatably connected to the support frame and two No. 1 guide shafts fixedly mounted on the support frame, and the two No. 1 guide shafts are transmission connected via a No. 1 transmission assembly, a motor seat is arranged above one of the bidirectional screw rods, and the motor seat is fixedly mounted on the upper end of the support frame, a driving motor is fixedly mounted on the upper end of the motor seat, and the output end of the driving motor is fixedly mounted to the bidirectional screw rod directly below.

[0019] As a further preferred embodiment of the technical solution: two groups of sliding seats arranged in parallel are slidably connected to the support frame, and a leveling roller assembly is provided in the middle position of each group of sliding seats.

[0020] As a further preferred embodiment of the present technical solution: the sliding seat is slidably connected to the No. 1 guide shaft, and the sliding seat is threadedly connected to the bidirectional lead screw.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the cleaning shovel is driven to move and rotate along the gap between the hot rolling leveling rollers by rotating the disc, so that the steel plate slag tightly stuck in the gap between the hot rolling rollers can be completely removed, thereby avoiding the interference of the slag on the hot rolling leveling system.

[0023] 2. In the present invention, the position of the cleaning shovel on the rotating disc can be adjusted so that it can adapt to the change in the spacing between the upper leveling roller assembly and the lower leveling roller assembly, thereby enhancing the cleaning effect of the cleaning shovel, improving the flexibility and practicality of the leveling device, and ensuring that the slag in the gap between the hot rolling rollers can be effectively cleaned under different spacing conditions, thereby ensuring the normal operation of the hot rolling leveling system.

[0024] 3. In the present invention, the spacing between the upper hot-rolled leveling roller and the lower hot-rolled leveling roller can be adaptively adjusted according to the thickness of the hot-rolled steel plate, thereby improving the adaptability to steel plates of different thicknesses, optimizing the leveling effect, and ensuring the stability and accuracy of the hot-rolled steel plate during the leveling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0027] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0028] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0029] Figure 5 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0030] Figure 6 It is an exploded view of the local structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 .

[0032] Legend: 1. Bottom plate; 2. Support frame; 3. Pitch adjustment mechanism; 31. Motor seat; 32. Drive motor; 33. Transmission assembly No. 1; 34. Bidirectional screw; 35. Guide shaft No. 1; 4. Sliding seat; 41. Leveling roller assembly; 5. Debris cleaning mechanism; 51. Moving assembly; 511. Slide rail; 512. One-way screw; 513. Moving block; 514. Connecting shaft; 52. Rolling assembly; 521. Transmission gear; 522. Transmission rack; 523. Transmission assembly No. 2; 524. Rotating shaft; 53. Pitch changing assembly; 531. Mini motor; 532. Drive shaft; 533. Driven gear; 5311. Slide slot No. 1; 534. Driving gear; 54. Rotating disc; 541. Slide slot No. 2; 55. Cleaning shovel; 551. Guide shaft No. 2; 56. Connecting frame. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1-Figure 7 The present application provides a leveling system for a hot rolling mill, comprising a bottom plate 1, a support frame 2 is fixedly mounted on the bottom plate 1, and a distance adjustment mechanism 3 is arranged on the support frame 2, which is used to adjust the distance between two sliding seats 4 arranged in parallel up and down; a slag cleaning mechanism 5 is also arranged on the support frame 2, which is used to clean the slag in the gap of the leveling roller assembly 41, wherein the slag cleaning mechanism 5 includes a plurality of cleaning shovels 55, and a moving assembly 51 for driving the plurality of cleaning shovels 55 to move, a rolling assembly 52 for driving the plurality of cleaning shovels 55 to rotate, and a variable distance assembly 53 for adjusting the distance between the plurality of cleaning shovels 55;

[0036] The moving assembly 51 includes a slide rail 511 fixedly mounted on the support frame 2, the slide rail 511 internally rotatably connected to a one-way screw rod 512, and a motor for driving the one-way screw rod 512 to rotate is fixedly mounted on the slide rail 511, the one-way screw rod 512 is threadedly connected to a moving block 513 that slides inside the slide rail 511, and a connecting shaft 514 is fixedly mounted on the moving block 513.

[0037] Specifically, because the temperature of the steel plate after being melted is too high and it is under pressure, the surface will be carbonized and cause debris to fall, and larger debris may be stuck in the gap between the two hot rolling rollers. Therefore, the one-way screw rod 512 can be driven to rotate by starting the motor. The rotation of the one-way screw rod 512 drives the moving block 513 to slide along the slide rail 511, and then the rotating disc 54 drives multiple cleaning shovels 55 to move along the gap between the two hot rolling rollers.

[0038] In this embodiment, the rolling assembly 52 includes a transmission gear 521 fixedly mounted on the end of the connecting shaft 514, and the transmission gear 521 is meshed with a transmission rack 522 fixedly mounted on the support frame 2; the rolling assembly 52 also includes a rotating shaft 524, and a second transmission assembly 523 for transmission is installed between the rotating shaft 524 and the connecting shaft 514. It should be noted that the second transmission assembly 523 has the same configuration as the first transmission assembly 33, and a plurality of rotating discs 54 arranged at equal distances are fixedly mounted on the rotating shaft 524, and each rotating disc 54 is fixedly mounted on the rotating shaft 524. The disc 54 is provided with a plurality of No. 2 chutes 541 arranged in a circular array, which are linear chutes. A cleaning shovel 55 is slidably connected inside each No. 2 chute 541. The middle part of the cleaning shovel 55 is curved, which is easy to pick out the stuck debris. The debris cleaning mechanism 5 also includes a connecting frame 56, one end of the connecting frame 56 is rotatably connected to the connecting shaft 514, and the other end of the connecting frame 56 is rotatably connected to the rotating shaft 524, which is used to connect the connecting shaft 514 with the rotating shaft 524 to provide support for the rotating shaft 524 below.

[0039] Specifically, during the movement of the connecting shaft 514, the transmission gear 521 can be driven to move. Because the transmission gear 521 is meshed with the transmission rack 522, the transmission gear 521 can rotate on its own, and then drive the rotating shaft 524 to rotate through the No. 2 transmission component 523. It should be noted that the No. 2 transmission component 523 is composed of two pulleys and a transmission belt arranged on the two pulleys. The rotating shaft 524 drives the multiple rotating disks 54 thereon to rotate, and each rotating disk 54 drives the multiple cleaning shovels 55 thereon to rotate. Since the middle part of the cleaning shovel 55 is curved, the rotation of the cleaning shovel 55 can pick out the steel plate debris tightly stuck in the gap between the two hot rolling rollers. At this point, the cleaning of the steel plate debris in the gap between the two hot rolling rollers is achieved by the cleaning shovel 55.

[0040] Embodiment 2:

[0041] On the basis of the first embodiment, the pitch changing assembly 53 is installed on the rotating disc 54, and the pitch changing assembly 53 includes a mini motor 531 fixedly installed on any one of the outermost rotating discs 54, and a driving shaft 532 is fixedly installed on the output end of the mini motor 531, and the driving shaft 532 is fixedly installed with the same number of driving gears 534 as the rotating discs 54, and each driving gear 534 is meshed and connected with a driven gear 533 rotatably installed on the driving shaft 532, and each driven gear 533 is provided with a plurality of No. 1 slide grooves 5311 arranged in a ring array, which are arc-shaped slide grooves, and each cleaning shovel 55 is fixedly installed with a No. 2 guide shaft 551, and multiple No. 2 guide shafts 551 slide in the No. 1 slide groove 5311 in a one-to-one correspondence.

[0042] Specifically, due to the different thicknesses of the steel plates, the spacing between the two layers of leveling roller assemblies 41 is different. To this end, the mini motor 531 can be started to rotate, and the output end of the mini motor 531 can drive the driving shaft 532 to rotate, and the driving shaft 532 drives the active gear 534 to rotate, and the active gear 534 drives the driven gear 533 to rotate. The rotation of the driven gear 533 causes the No. 2 guide shaft 551 to slide relative to the No. 1 slide groove 5311, thereby causing multiple cleaning shovels 55 to slide along the No. 2 slide groove 541 on the rotating disk 54, so that the cleaning shovel 55 moves along the No. 2 slide groove 541 away from the rotating disk 54, or by driving the mini motor 531 in reverse, the cleaning shovel 55 moves in a direction close to the rotating disk 54, so that even if the spacing between the upper leveling roller assembly 41 and the lower layer becomes larger, the steel plate debris stuck in the gap between the two hot rolling leveling rollers can be picked out to avoid affecting the normal operation of the hot rolling leveling system.

[0043] Embodiment three:

[0044] On the basis of embodiment one, the distance adjusting mechanism 3 includes two bidirectional screw rods 34 rotatably connected to the support frame 2 and two No. 1 guide shafts 35 fixedly mounted on the support frame 2, and the two No. 1 guide shafts 35 are transmission connected via a No. 1 transmission assembly 33, a motor seat 31 is arranged above one of the bidirectional screw rods 34, and the motor seat 31 is fixedly mounted on the upper end of the support frame 2, a driving motor 32 is fixedly mounted on the upper end of the motor seat 31, and the output end of the driving motor 32 is fixedly mounted to the bidirectional screw rod 34 directly below.

[0045] Specifically, before the hot-rolled steel plate is leveled, the driving motor 32 can be started to drive a bidirectional screw rod 34 directly below to rotate, and the other bidirectional screw rod 34 also rotates in the same direction under the transmission action of the No. 1 transmission component 33, thereby driving the two groups of sliding seats 4 to slide along the support frame 2. Because the threads on the bidirectional screw rod 34 are arranged in opposite directions, the sliding seat 4 arranged at the upper side moves in the opposite direction to the sliding seat arranged at the lower side, and thus the distance between the upper hot-rolled leveling roller and the lower hot-rolled leveling roller can be adjusted according to the thickness of the hot-rolled steel plate, thereby improving its adaptability.

[0046] In this embodiment, two groups of sliding seats 4 arranged in parallel are slidably connected to the support frame 2, and a leveling roller assembly 41 is provided in the middle position of each group of sliding seats 4. The sliding seat 4 is slidably connected to the No. 1 guide shaft 35, and the sliding seat 4 is threadedly connected to the bidirectional screw 34. It should be noted that the hot-rolled steel plate can be leveled by the leveling roller assembly 41. The leveling roller assembly 41 is a prior art, and can be achieved by connecting multiple hot-rolling rollers through transmission belts and pulleys, and then driving them to rotate through a motor, and the steel plate passes through the middle of the upper and lower hot-rolling rollers.

[0047] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A leveling system for a hot rolling mill, comprising a base plate (1), on which a support frame (2) is fixedly mounted, characterized in that: Also includes: A distance adjustment mechanism (3) is arranged on the support frame (2) and is used to adjust the distance between two sliding seats (4) arranged in parallel up and down; A debris cleaning mechanism (5) is arranged on the support frame (2) and is used to clean the debris in the gap of the leveling roller assembly (41), wherein: The slag cleaning mechanism (5) comprises a plurality of cleaning shovels (55), a moving assembly (51) for driving the plurality of cleaning shovels (55) to move, a rolling assembly (52) for driving the plurality of cleaning shovels (55) to rotate, and a variable distance assembly (53) for adjusting the distance between the plurality of cleaning shovels (55).

2. A leveling system for a hot rolling mill according to claim 1, characterized in that: The moving assembly (51) comprises a slide rail (511) fixedly mounted on a support frame (2); a one-way screw rod (512) is rotatably connected inside the slide rail (511); a motor for driving the one-way screw rod (512) to rotate is fixedly mounted on the slide rail (511); a moving block (513) that slides inside the slide rail (511) is threadedly connected on the one-way screw rod (512); and a connecting shaft (514) is fixedly mounted on the moving block (513).

3. A leveling system for a hot rolling mill according to claim 2, characterized in that: The rolling assembly (52) comprises a transmission gear (521) fixedly mounted on the end of the connecting shaft (514), and the transmission gear (521) is meshed with a transmission rack (522) fixedly mounted on the support frame (2); The rolling assembly (52) further comprises a rotating shaft (524), and a second transmission assembly (523) for transmission is installed between the rotating shaft (524) and the connecting shaft (514).

4. A leveling system for a hot rolling mill according to claim 3, characterized in that: A plurality of rotating discs (54) arranged at equal intervals are fixedly mounted on the rotating shaft (524), each of the rotating discs (54) is provided with a plurality of No. 2 slide grooves (541) arranged in a ring array, each of the No. 2 slide grooves (541) is slidably connected to a cleaning shovel (55) inside, and the middle portion of the cleaning shovel (55) is arranged in a curved manner.

5. A leveling system for a hot rolling mill according to claim 4, characterized in that: The pitch-changing assembly (53) is mounted on a rotating disk (54), and comprises a mini motor (531) fixedly mounted on any one of the outermost rotating disks (54); a driving shaft (532) is fixedly mounted on the output end of the mini motor (531); the driving shaft (532) is fixedly mounted with driving gears (534) the same number as the rotating disks (54), and each of the driving gears (534) is meshedly connected with a driven gear (533) rotatably mounted on the driving shaft (532).

6. A leveling system for a hot rolling mill according to claim 5, characterized in that: Each of the driven gears (533) is provided with a plurality of No. 1 slide grooves (5311) arranged in a ring array, and each of the cleaning shovels (55) is fixedly mounted with a No. 2 guide shaft (551), and the plurality of No. 2 guide shafts (551) slide in the No. 1 slide groove (5311) in a one-to-one correspondence.

7. A leveling system for a hot rolling mill according to claim 3, characterized in that: The debris cleaning mechanism (5) further comprises a connecting frame (56), one end of the connecting frame (56) being rotatably connected to the connecting shaft (514), and the other end of the connecting frame (56) being rotatably connected to the rotating shaft (524).

8. A leveling system for a hot rolling mill according to claim 1, characterized in that: The pitch adjustment mechanism (3) comprises two bidirectional screw rods (34) rotatably connected to the support frame (2) and two No. 1 guide shafts (35) fixedly mounted on the support frame (2), and the two No. 1 guide shafts (35) are transmission-connected via a No. 1 transmission assembly (33), a motor seat (31) is arranged above one of the bidirectional screw rods (34), and the motor seat (31) is fixedly mounted on the upper end of the support frame (2), a driving motor (32) is fixedly mounted on the upper end of the motor seat (31), and an output end of the driving motor (32) is fixedly mounted to the bidirectional screw rod (34) directly below.

9. A leveling system for a hot rolling mill according to claim 8, characterized in that: Two groups of sliding seats (4) arranged in parallel are slidably connected to the support frame (2), and a leveling roller assembly (41) is provided at the middle position of each group of sliding seats (4).

10. A leveling system for a hot rolling mill according to claim 9, characterized in that: The sliding seat (4) is slidably connected to the first guide shaft (35), and the sliding seat (4) is threadedly connected to the bidirectional screw rod (34).

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